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Internal Use Only Website http://biz.lgservice.com SERVICE MANUAL MODEL: DH7520TW (DH7520TW, S72T1-S/W, S72B1-C, T2, W2)

P/NO : AFN75754110

MAY, 2012

DVD HOME THEATER SYSTEM SERVICE MANUAL MODEL: DH7520TW

(DH7520TW, S72T1-S/W, S72B1-C, T2, W2)

CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL.

CONTENTS SECTION SECTION SECTION SECTION SECTION

1 ........ SUMMARY 2 ........ ELECTRICAL 3 ........ CABINET & MAIN CHASSIS 4 ........ WIRELESS RECEIVER PART 5 ........ REPLACEMENT PARTS LIST

1-1

SECTION 1 SUMMARY CONTENTS

SERVICING PRECAUTIONS ............................................................................................................................ 1-3 ESD PRECAUTIONS ......................................................................................................................................... 1-5 SERVICE INFORMATION FOR EEPROM ........................................................................................................ 1-6 HOW TO UPDATE AUDIO MICOM & DVD PROGRAMS ................................................................................ 1-7 1. How to enter into System Information..................................................................................................... 1-7 2. How to update AUDIO MICOM program ................................................................................................ 1-7 3. How to update DVD program .................................................................................................................. 1-7 SPECIFICATIONS ............................................................................................................................................. 1-8

1-2

SERVICING PRECAUTIONS NOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage

1) The pick-up should always be left in its conductive bag until immediately prior to use. 2) The pick-up should never be subjected to external pressure or impact.

Storage in conductive bag

Drop impact

2. Repair notes 1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials. 2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or damage to the printed-circuit board. 3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched. 4) Laser beams may damage the eyes! Absolutely never permit laser beams to enter the eyes! Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.

NEVER look directly at the laser beam, and don’t allow contact with fingers or other exposed skin.

5) Cleaning the lens surface If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort lens. Pressure Magnet

Pressure

How to hold the pick-up Cotton swab

Conductive Sheet 6) Never attempt to disassemble the pick-up. Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.

1-3

NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations

1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care. 2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage where the temperature or humidity is high, where strong magnetism is present, or where there is excessive dust.

2. Notes for repair 1) Before replacing a component part, first disconnect the power supply lead wire from the unit 2) All equipment, measuring instruments and tools must be grounded. 3) The workbench should be covered with a conductive sheet and grounded. When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is because there is the possibility of damage by static electricity.) 4) To prevent AC leakage, the metal part of the soldering iron should be grounded. 5) Workers should be grounded by an armband (1 MΩ) 6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband. 7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin. Armband

Resistor (1 MΩ)

Resistor (1 MΩ) Conductive Sheet

1-4

ESD PRECAUTIONS Electrostatically Sensitive Devices (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ESD devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD devices. 6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials). 7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed. CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER SAFETY PRECAUTIONS. 8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device).

CAUTION. GRAPHIC SYMBOLS THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.

1-5

SERVICE INFORMATION FOR EEPROM POWER ON

DVD LOGO Status (NO Disk status)

DETECT NEW EEPROM (OPTION EDIT SCREEN)

NAME

Remote control Pause key→1→4→7→2 in order.

Press number 0~9, Press character A~F (1~6 for a while)

OPT OPT OPT OPT OPT OPT OPT OPT OPT OPT

1 2 3 4 5 6 7 8 9 A

Use arrow key ( ) to move to appropriate position and make changes

Press pause key once

Change will be applied when power OFF→ON.

1-6

HEX F1 00 CD D4 00 09 80 40 00 30

HOW TO UPDATE AUDIO MICOM & DVD PROGRAMS 1. How to enter into System Information 1) Enter into SETUP menu in NO Disc. 2) Put on cursor [Highlight] 16:9 wide option of TV aspect in SETUP menu. 3) Press follow key in continuous using remote control. 1 −> 3 −> 9 −> 7 −> 1 −> 3 −> 9 −> ENTER

2. How to update AUDIO MICOM program. [Update using CD] 1) Change the filename to download as “ DH7520_(Version).HEX”. Only upper cases are permitted. ex) DH7520 : “ DH7520_1010160.HEX” 2) Copy the file to the root folder of a CD and burn it. 3) Insert the CD to the SET, and move to the DVD function. Then the upgrade process will be started with the upgrade information. 4) If the upgrade process is complete, the set will be rebooted with “Complete” message. [Update using USB] 1) Change the filename to download as “ DH7520_(Version).HEX”. Only upper cases are permitted. ex) DH7520 : “ DH7520_1010160.HEX” 2) Copy the file to the root folder of USB storage. 3) After Home-menu is displayed on Screen of SET, Put the USB into the SET. Then the upgrade process will be started with the upgrade information. 4) If the upgrade process is complete, the set will be rebooted with “Complete” message.

3. How to update DVD program. [Update using CD] 1) Copy DVD program(ex: LG_DH7520LD1_Version.Rom) to Root folder of CD, and burn it. ex) P:LG_DH7520LD1_1010160..Rom 2) Insert the CD to the SET, then after a while the CD tray will be opened with upgrade information on the screen. 3) Remove the CD, and press “PLAY” key in remote controller. 4) Remove and reconnect the power cable when it changes to logo screen from upgrade information. Then the upgrade process is completed. [Update using USB] 1) Copy DVD program(ex: LG_DH7520LD1_Version.Rom) to Root folder of the formatted USB and burn it. ex) P:\LG_DH7520LD1_1010160.Rom 2) After Home-menu is displayed on Screen of SET, Put the USB into the SET. Then the upgrade process will be started with the upgrade information. 3) Remove the USB, press "PLAY" key of the remote controller. 4) Remove and reconnect the power cable when it changes to logo screen from upgrade information. Then the upgrade process is completed.

1-7

SPECIFICATIONS • GENERAL Power requirements

200 - 240 V, 50/60 Hz

Power consumption

70 W

Dimensions (W x H x D)

440 x 65 x 297 mm without foot

Net Weight (Approx.)

3.3 kg

Operating temperature

41 °F to 95 °F (5 °C to 35 °C)

Operating humidity

5 % to 90 %

Bus Power Supply (USB)

DC 5 V

500 mA

• INPUTS/ OUTPUTS VIDEO OUT

1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1

COMPONENT VIDEO OUT

(Y) 1.0 V (p-p), 75 Ω, sync negative, RCA jack x 1 (Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 2

HDMI OUT (video/audio)

19 pin (Type A, HDMI™ Connector )

ANALOG AUDIO IN

2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R) x 1

DIGITAL IN (OPTICAL)

3 V (p-p), Optical jack x 1

PORT. IN

0.5 Vrms (3.5 mm stereo jack)

MIC IN

6.3 mm jack

• AMPLIFIER Stereo mode

180 W + 180 W (4 Ω at 1kHz)

Surround mode

Front:

180 W + 180 W (4 Ω at 1 kHz)

Center:

180 W (4 Ω at 1 kHz)

Surround:

180 W + 180 W (4 Ω at 1 kHz)

Subwoofer: 200 W (3 Ω at 60 Hz) • TUNER FM Tuning Range

87.5 to 108.0 MHz or 87.50 to 108.00 MHz

AM Tuning Range

522 to 1,620 kHz, 520 to 1,710 kHz or 522 to 1,710 kHz

• WIRELESS RECEIVER Power requirements Power consumption External dimensions (WxHxD) Net Weight

Refer to main label on the wireless receiver Refer to main label on the wireless receiver 60 X 220 X 175 mm 0.9 kg

1-8

• FRONT SPEAKER Type

2 Way 3 speaker

Impedance Rated

4Ω

Input Power

180 W

Max. Input Power

360 W

Net Dimensions (W x H x D)

250 x 1 200 x 250 mm

Net Weight

4.1 kg

• REAR SPEAKER Type

2 Way 3 speaker

Impedance Rated

4Ω

Input Power

180 W

Max. Input Power

360 W

Net Dimensions (W x H x D)

250 x 1 200 x 250 mm

Net Weight

4.1 kg

• CENTER SPEAKER Type

2 Way 3 speaker

Impedance Rated

4Ω

Input Power

180 W

Max. Input Power

360 W

Net Dimensions (W x H x D)

330 x 93 x 74 mm

Net Weight

1.3 kg

• PASSIVE SUBWOOFER Type

1 Way 1 speaker

Impedance Rated

3Ω

Input Power

200 W

Max. Input Power

400 W

Net Dimensions (W x H x D)

251 x 336 x 347 mm

Net Weight

6.3 kg

Design and specifications are subject to change without notice.

1-9

MEMO

1-10

SECTION 2 ELECTRICAL CONTENTS DIGITAL DISPLAY & MEDIA TRAINING MASTER ......................................................................................... 2-2 1. DISTORTED PICTURE........................................................................................................................... 2-2 2. NO PICTURE .......................................................................................................................................... 2-7 3. PICTURE COLOR................................................................................................................................. 2-12 4. NOISE/AUDIO PROBLEMS.................................................................................................................. 2-14 5. MISCELLANEOUS ................................................................................................................................ 2-17 ONE POINT REPAIR GUIDE .......................................................................................................................... 2-26 1. NO POWER PROBLEM (HIGH VOLTAGE) ......................................................................................... 2-26 2. NO AUDIO SPEAKER (25 V / 30 V)..................................................................................................... 2-27 3. NO POWER PROBLEM (3.8 VA) ......................................................................................................... 2-28 4. VFD DOESN’T DISPLAY ...................................................................................................................... 2-29 5. NO POWER PROBLEM ....................................................................................................................... 2-30 6. SPEAKER NO AUDIO OUTPUT .......................................................................................................... 2-31 7. USB NO DETECT ................................................................................................................................. 2-32 8. NO BOOTING ....................................................................................................................................... 2-33 9. DISC NO READING .............................................................................................................................. 2-34 10. NO VIDEO OUTPUT COMPOSITE ...................................................................................................... 2-35 11. NO VIDEO OUTPUT COMPONENT .................................................................................................... 2-36 12. NO BOOTING ....................................................................................................................................... 2-37 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING ....................................................... 2-38 1. SYSTEM 27 MHz CLOCK, RESET, FLASH R/W SIGNAL .................................................................. 2-38 2. SDRAM CLOCK .................................................................................................................................... 2-39 3. VIDEO PART - 1 (100% FULL COLOR-BAR) ...................................................................................... 2-40 4. VIDEO PART - 2 (100% FULL COLOR-BAR) ...................................................................................... 2-41 5. HDMI PART .......................................................................................................................................... 2-42 6. SERVO OPEN/CLOSE SIGNAL ........................................................................................................... 2-43 WIRING DIAGRAM .......................................................................................................................................... 2-51 BLOCK DIAGRAMS ........................................................................................................................................ 2-53 1. OVERALL BLOCK DIAGRAM .............................................................................................................. 2-53 2. AUDIO PATH BLOCK DIAGRAM ......................................................................................................... 2-55 CIRCUIT DIAGRAMS ...................................................................................................................................... 2-57 1. SMPS CIRCUIT DIAGRAM .................................................................................................................. 2-57 2. MAIN - MPEG CIRCUIT DIAGRAM ...................................................................................................... 2-59 3. MAIN - SERVO CIRCUIT DIAGRAM .................................................................................................... 2-61 4. MAIN - I/O CIRCUIT DIAGRAM............................................................................................................ 2-63 5. MAIN - MICOM CIRCUIT DIAGRAM .................................................................................................... 2-65 6. MAIN - I/O JACK CIRCUIT DIAGRAM ................................................................................................. 2-67 7. AMP - PWM CIRCUIT DIAGRAM ......................................................................................................... 2-69 8. AMP - AMP CIRCUIT DIAGRAM .......................................................................................................... 2-71 9. JACK CIRCUIT DIAGRAM ................................................................................................................... 2-73 10. FRONT CIRCUIT DIAGRAM ................................................................................................................ 2-75 CIRCUIT VOLTAGE CHART ........................................................................................................................... 2-77 PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 2-81 1. SMPS P. C. BOARD ............................................................................................................................. 2-81 2. MAIN P. C. BOARD .............................................................................................................................. 2-83 3. AMP P. C. BOARD ............................................................................................................................... 2-85 4. JACK P. C. BOARD .............................................................................................................................. 2-87 5. FRONT P. C. BOARD ........................................................................................................................... 2-89 2-1

DIGITAL DISPLAY & MEDIA TRAINING MASTER Objective: To provide clear and concise guidelines for customer service agents to handle calls on box goods calls.

1. DISTORTED PICTURE 1-1. Lines on Picture Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older DVD models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Do lines appear when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Multiple discs displaying the problem could indicate the DVD lens needs to be cleaned. Recommend the customer use a lens cleaner on the DVD. A lens cleaner is available at any local electronics retailer.

YES

Do lines appear when watching a TV program?

NO

Lines appearing when watching a TV program indicates an issue with the display. If the TV program is fine, then connect the DVD to another input on the display to determine if the problem is following the DVD.

YES

Do lines appear when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. No lines during disc play back indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-2

DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-2. Ghost Picture Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR or DVD. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Do ghosting appear when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Multiple discs displaying the problem could indicate the DVD lens needs to be cleaned. Recommend the customer use a lens cleaner on the DVD. A lens cleaner is available at any local electronics retailer.

YES

Do lines appear when watching a TV program?

NO

Ghosting appearing when watching a TV program indicates an issue with the display. If the TV program is fine, then connect the DVD to another input on the display to determine if the problem is following the DVD.

YES

Does ghosting appear when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. No ghosting during disc play back indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-3

DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-3. Rolling Picture Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Does rolling appear when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Multiple discs displaying the problem could indicate the DVD lens needs to be cleaned. Recommend the customer use a lens cleaner on the DVD. A lens cleaner is available at any local electronics retailer.

YES

Does rolling appear when watching a TV program?

NO

Rolling appearing when watching a TV program indicates an issue with the display. If the TV program is fine, then connect the DVD to another input on the display to determine if the problem is following the DVD.

YES

Does rolling appear when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. No lines during disc playback indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-4

DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-4. Shaky Picture Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Does shaking appear when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Multiple discs displaying the problem could indicate the DVD lens needs to be cleaned. Recommend the customer use a lens cleaner on the DVD. A lens cleaner is available at any local electronics retailer.

YES

Does shaking appear when watching a TV program?

NO

Shaking appearing when watching a TV program indicates an issue with the display. If the TV program is fine, then connect the DVD to another input on the display to determine if the problem is following the DVD.

YES

Does shaking appear when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. No shaking during disc play back indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-5

DIGITAL DISPLAY & MEDIA TRAINING MASTER 1-5. Blurry Picture Distorted picture refers to the customer getting video, but there is a problem with the video.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Does blurriness appear when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Multiple discs displaying the problem could indicate the DVD lens needs to be cleaned. Recommend the customer use a lens cleaner on the DVD. A lens cleaner is available at any local electronics retailer.

YES

Does blurriness appear when watching a TV program?

NO

Blurriness appearing when watching a TV program indicates an issue with the display. If the TV program is fine, then connect the DVD to another input on the display to determine if the problem is following the DVD.

YES

Does blurriness appear when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. No blurriness during disc play back indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-6

DIGITAL DISPLAY & MEDIA TRAINING MASTER 2. NO PICTURE 2-1. Black Screen The entire screen is black.

Does the DVD on-screen menu appear?

NO

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on upconversion DVD HTS by pushing the resolution button of the remote controller. HDMI don’t support 480i resolution.

YES

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to watch TV programming?

NO

If the customer is not able to watch television then he may have a problem with his television, especially if the cable signal comes through on a different input. If the customer can not get a TV program, then he still may have a problem with the particular input on his TV.

YES

Can the customer connect the DVD to another TV?

NO

Have the customer connect the DVD to another TV in order to determine if the problem is the DVD or the TV. Refer to the OM for connections assistance. If the DVD works on the second TV, then the customer has a problem with his TV.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-7

DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-2. Blue Screen The entire screen is a solid blue color.

Does the DVD on-screen menu appear?

NO

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on upconversion DVD HTS by pushing the resolution button of the remote controller. HDMI don’t support 480i resolution.

YES

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to watch TV programming?

NO

If the customer is not able to watch television then he may have a problem with his television, especially if the cable signal comes through on a different input. If the customer can not get a TV program, then he still may have a problem with the particular input on his TV.

YES

Can the customer connect the DVD to another TV?

NO

Have the customer connect the DVD to another TV in order to determine if the problem is the DVD or the TV. Refer to the OM for connections assistance. If the DVD works on the second TV, then the customer has a problem with his TV.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-8

DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-3. Snowy Screen A snowy picture is when black and white dots are all over the screen.

Does the DVD on-screen menu appear?

NO

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on upconversion DVD HTS by pushing the resolution button of the remote controller. HDMI don’t support 480i resolution.

YES

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to watch TV programming?

NO

If the customer is not able to watch television then he may have a problem with his television, especially if the cable signal comes through on a different input. If the customer can not get a TV program, then he still may have a problem with the particular input on his TV.

YES

Can the customer connect the DVD to another TV?

NO

Have the customer connect the DVD to another TV in order to determine if the problem is the DVD or the TV. Refer to the OM for connections assistance. If the DVD works on the second TV, then the customer has a problem with his TV.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-9

DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-4. No Signal A “no signal” message appears on the screen of the display.

Does the DVD on-screen menu appear?

NO

Make sure the customer did not select 480i resolution in the menu of the DVD HTS if using HDMI connections. Change resolution on upconversion DVD HTS by pushing the resolution button of the remote controller. HDMI don’t support 480i resolution.

YES

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR or DVD to DVD Recorder. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input. Turn TV off, then on to determine input. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Is the customer able to watch TV programming?

NO

If the customer is not able to watch television then he may have a problem with his television, especially if the cable signal comes through on a different input. If the customer can not get a TV program, then he still may have a problem with the particular input on his TV.

YES

Can the customer connect the DVD to another TV?

NO

Have the customer connect the DVD to another TV in order to determine if the problem is the DVD or the TV. Refer to the OM for connections assistance. If the DVD works on the second TV, then the customer has a problem with his TV.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-10

DIGITAL DISPLAY & MEDIA TRAINING MASTER 2-5. Invalid Format or Format Not Supported

Is the customer using a digital cable connection?

NO

Customer’s using an DVI, or HDMI cable connection need to set the resolution on the product above 480I. HDMI, DVI connections can not process a 480I resolution. They can only process a 480P, 720P, 1080I, or 1080P resolution.

YES

Is the customer using an analog cable connection?

NO

Make sure the customer’s simultaneously connecting analog component cable with HDMI cable. And then If Copy Protected Disc is playing back, analog component output is no picture. Only when the analog output is 480I, you can see the picture. In case of No Copy Protected Disc, you can see the picture regardless of the resolution.

YES

Is the display HDCP compliant?

NO

Make sure the display is HDCP compliant when using a DVI or HDMI connection. A lack of HDCP compliancy on the display may cause an invalid format or format not supported message to appear. It can also cause a copy protection OSD to appear.

YES

Has the customer tried the device on another display?

NO

Ask the customer to connect the device to another display. If the device starts working, then the problem may be the original display. The customer will need to troubleshoot the display. If the device still does not work, then the problem may be the device or the cable.

YES

Has the customer tried another cable?

NO

Ask the customer to replace the cable between the device and display. If the problem is corrected, then the problem was with the cable. If the problem continues, then the device is the problem. Set up service according to in warranty or out of warranty procedures.

2-11

DIGITAL DISPLAY & MEDIA TRAINING MASTER 3. PICTURE COLOR 3-1. No Color The video displays no color and only shows in black and white.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input according to the connections in use. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Does color appear when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Make sure the discs the customer is using are compatible with the DVD by checking “playable discs” in the owners manual. Multiple discs displaying the problem indicates a problem with the DVD HTS.

YES

Does color appear when watching a TV program?

NO

If the cable or satellite programming is connected through another input and the customer does not get color, the customer has a problem with his television. If a TV program does have the color, the problem may be the DVD HTS, the cables being used, or the TV itself.

YES

Does color appear when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. Good color during disc play back indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If the DVD is the problem, please see service chart for service information.

2-12

DIGITAL DISPLAY & MEDIA TRAINING MASTER 3-2. Poor Color The color is poor. Examples would be washed out colors, colors bleeding into one another, or a solid tint to a screen.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer is not connecting a DVD to VCR. Copy protection can distort the picture on older VCR models.

YES

Is the TV set to the correct input?

NO

Make sure the TV is on the correct input according to the connections in use. Video when using composite, or component. DVI when using DVI, and HDMI when using HDMI.

YES

Is color fine when watching multiple discs?

NO

One disc displaying the issue is a problem with the disc. Make sure the discs the customer is using are compatible with the DVD by checking “playable discs” in the owners manual. Multiple discs displaying the problem indicates a problem with the DVD HTS.

YES

Is color fine when watching a TV program?

NO

If the cable or satellite programming is connected through another input and the customer does not get color, the customer has a problem with his television. If a TV program does have the color, the problem may be the DVD HTS, the cables being used, or the TV itself.

YES

Is color fine when the DVD is connected to another TV?

NO

Connect the DVD to another TV and play a disc. Good color during disc play back indicates a problem with the first TV. Please refer to the owners manual for instructions on how to connect the DVD to a TV. If the DVD has a problem on the second TV, then see service chart for service information.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause video problems. Test the cable with another device to the TV to also determine if the TV is bad. If the DVD is the problem, please see service chart for service information.

2-13

DIGITAL DISPLAY & MEDIA TRAINING MASTER 4. NOISE/AUDIO PROBLEMS 4-1. No Audio The customer is not able to get audio.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer has audio cables connected if using an HDMI to DVI adapter or video-only cables (DVI, component, etc).

YES

Is the customer able to see video?

NO

Make sure the customer has not routed video and audio to separate inputs.

YES

Does issue occur on more than one disc?

NO

Problem occurring on one disc indicates a problem with the disc. Problem occurring on multiple discs could indicate a lens cleaner is needed. The customer can purchase a lens cleaner at any electronics retailer.

YES

Problem occur when watching TV program?

NO

No audio from a TV program on a different channel or input means there is a problem with the television. If a TV program does have the audio, the problem may be the DVD HTS, the cables being used, or the TV itself.

YES

Does the problem occur when DVD is connected to another TV?

NO

Audio is fine when the DVD is connected to another TV indicates the problem is with the television. Refer to the owners manual for assistance with connecting DVD to another TV.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause audio problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-14

DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-2. Distorted Audio The audio sounds muffled, scratchy, or the audio skips.

What cables is the customer using to connect the DVD?

NO

Determine what cables the customer is using to connect the DVD to the TV and if connected properly. Refer to OM for connections. Tighten any loose cables. Make sure the customer has audio cables connected if using an HDMI to DVI adapter or video-only cables (DVI, component, etc).

YES

Is the customer able to see video?

NO

Make sure the customer has not routed video and audio to separate inputs.

YES

Does issue occur on more than one disc?

NO

Problem occurring on one disc indicates a problem with the disc. Problem occurring on multiple discs could indicate a lens cleaner is needed. The customer can purchase a lens cleaner at any electronics retailer.

YES

Problem occur when watching TV program?

NO

Distorted audio from a TV program on a different channel or input means there is a problem with the television. If a TV program does have the audio, the problem may be the DVD HTS, the cables being used, or the TV itself.

YES

Does the problem occur when DVD is connected to another TV?

NO

Audio is fine when the DVD is connected to another TV indicates the problem is with the television. Refer to the owners manual for assistance with connecting DVD to another TV.

YES

Has the customer tried another set of cables?

NO

Have the customer try another set of cables. A bad cable can also cause audio problems. Test the cable with another device to the TV to also determine if the TV is bad. If DVD is problem, please see service chart for service information.

2-15

DIGITAL DISPLAY & MEDIA TRAINING MASTER 4-3. Humming/Clicking Noise The unit is making a humming noise or a clicking noise.

Does the noise only happen when a disc is playing?

NO

DVDs make a slight hum when playing discs. A clicking noise or a noise interfering with audio may indicate a problem. Try multiple discs. Multiple discs with the same issue means the DVD may need service or be professionally cleaned. Check DVD service for service instructions.

YES

Does the noise happen when the DVD is turned on?

NO

Check to see if a disc is inserted into the DVD and eject the disc. A humming or clicking noise when the disc is not inserted may be a cooling fan. Check OM to see if cooling fan is present. If not, unit will need service. See DVD service for service instructions.

4-4. Audio/Video Out of Synch The audio and video do not match up. People look to be talking, but their voices are delayed by a few seconds.

Has the customer tried multiple tapes and discs?

NO

If the issue only shows up on one disc, then the problem is with that disc. Have the customer try multiple tapes or discs. If the issue happens on multiple discs and tapes, then ask the customer to try a lens or a head cleaner.

YES

How are the cables routed?

NO

Make sure cables are routed properly. Make sure audio and video cables are routed to the same source (if possible). Routed audio and video to separate products can cause a bit of a delay between the devices as not all devices will process audio and video signals at the same speed.

YES

Has the customer connected to another TV?

NO

Ask the customer to connect the product to another TV. If the issue persists, try another set of cables. If the issue still persists, then the issue is with the unit. The unit will need service. Arrange service following proper procedure.

2-16

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5. MISCELLANEOUS 5-1. No Power The unit will not turn on. Is the unit plugged in?

NO

Make sure the unit is plugged into a surge protector or the wall.

YES Does the unit turn on when the power button is pressed on the unit?

NO

See if the unit will turn on when the power button the unit is pressed. If the unit turns on, then troubleshoot the remote control using the Remote Control Not Working call flow.

NO

Make sure the surge protector is plugged into a wall outlet. Also make sure the surge protector is turned on or does not need to be reset due to a recent surge.

YES

Is the unit plugged into a surge protector?

YES

Does the unit work when plugged into another outlet?

NO

Test the unit in another outlet. If the unit works, then the problem is the outlet where the unit was connected. If the issue is the DVD, then set up service for DVD according to DVD service guide.

YES

Have there been any lightning strikes or power outages?

NO

If DVD failed due to lightning strike or a power surge, this is not covered by warranty. Follow guidelines for service for a DVD out of warranty.

2-17

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-2. Disc Error The unit displays “disc error” when a disc is inserted into the DVD HTS.

Is the disc inserted into the DVD HTS properly?

NO

Make sure the disc has been inserted into the DVD HTS properly. The HTS can not read a disc inserted into the unit upside down.

YES

What type of disc is the customer using?

NO

Determine the type of disc the customer is not able to play. If the customer is using a store-bought movie DVD, then please skip the next three questions. If it’s a recorded disc, move onto the next question.

YES

Did the customer burn this disc in a DVD recorder?

NO

Make sure the customer finalized the disc in the DVD recorder. Make sure the type of disc the customer is using is compatible with the DVD HTS. If the customer initialized a DVD-RW in VR mode, make sure the owners manual has the RW logo to show compatibility for the VR format.

YES

Did the customer burn the disc in a computer?

NO

Make sure the customer burned a compatible format (such as VCD, SVCD, or DivX). Make sure the file meets the specifications required for the HTS to play the disc. Check the owners manual for specifications. Disc may still not be compatible. Refer customer to section of OM regarding burned discs.

YES

Has the customer tried multiple discs?

NO

One disc with the problem is a problem with the disc. DVD HTSs can play scratched or dirty DVDs and not have any issues during playback. Multiple discs with the issue can mean the lens on the DVD HTS needs to be cleaned. Recommend a lens cleaner. Service DVD if lens cleaner was used.

2-18

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-3. Unit Locks Up Unit does not respond to any commands.

Does the unit respond to the buttons on the unit?

NO

If the unit will turn on or off with the button on the unit, troubleshoot the remote control. Please refer to Remote Control Not Working call flow.

YES

Has the customer reset the unit?

NO

If the unit does no respond to any buttons, then reset the unit by unplugging it for 15 to 30 seconds. If the unit does not respond after the reset, arrange for service on the DVD.

5-4. Disc Stuck A DVD disc is stuck in the unit.

Does the open/close button on the unit work?

NO

Press the open/close button on the unit. If the disc ejects, troubleshoot the remote using the Remote Control not working call flow.

NO

Ask the customer to reset the unit by unplugging the unit from the electrical outlet for 15 to 30 seconds. If the disc remains stuck in the unit after the reset, the unit will need service.

YES

Has the customer reset the unit?

2-19

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-5. Remote Control Not Working

Does the unit respond to buttons on the front of the unit?

NO

If the buttons on the front of the unit do not respond, determine if the product has locked up or if the unit will not turn on. The problem is not the remote control. Make sure the remote control is the remote that goes with that particular model.

YES

Does the remote control any component?

NO

Determine which product the remote is not working. The customer may need to press the appropriate mode button to make the remote operate another component. The remote may even need to be programmed to the other component, especially if the batteries were just changed.

YES

Have the batteries been changed?

NO

Ask the customer to change batteries. Make sure the batteries are new and fresh. The batteries do not need to come from a “spare” battery drawer. Do not mix used and new batteries.

YES

Is the remote working at all?

NO

If the remote does not work anything, then walk the customer through a remote drain. Remove the batteries from the remote control. Then press and hold any button down for a minute. This will drain the power out of the remote and reset it. Universal remotes will have to be reprogrammed.

YES

Does any remote work the unit?

NO

If another remote works the unit, then follow the procedure to FOC the customer a new remote. If two remotes do not work the unit, the unit will need service.

YES

Does the customer want to program their remote?

NO

Please refer to the OM for instructions on how to program remote to TV. Customer wants to program a remote other than Zenith or LG, the customer will need to contact the manufacturer of the remote control. Codes do not work, remote is not compatible.

2-20

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-6. Will Not Play Disc The unit will not play a disc when a disc is inserted into the HTS.

Is the disc inserted into the DVD HTS properly?

NO

Make sure the disc has been inserted into the DVD HTS properly. The HTS can not read a disc inserted into the unit upside down.

YES

What type of disc is the customer using?

NO

Determine the type of disc the customer is not able to play. If the customer is using a store-bought DVD, then please skip the next three questions. If it’s a recorded disc, move onto the next question.

YES

Did the customer burn this disc in a DVD recorder?

NO

Make sure the customer finalized the disc in the DVD recorder. Make sure the type of disc the customer is using is compatible with the DVD HTS. If the customer initialized a DVD-RW in VR mode, make sure the owners manual has the RW logo to show compatibility for the VR format.

YES

Did the customer burn the disc in a computer?

NO

Make sure the customer burned a compatible format (such as VCD, SVCD, or DivX). Make sure the file meets the specifications required for the HTS to play the disc. Check the owners manual for specifications. Disc may still not be compatible. Refer customer to section of OM regarding burned discs.

YES

Has the customer tried multiple discs?

NO

One disc with the problem is a problem with the disc. DVD HTSs can play scratched or dirty DVDs and not have any issues during playback. Multiple discs with the issue can mean the lens on the DVD HTS needs to be cleaned. Recommend a lens cleaner. Service DVD if lens cleaner was used.

2-21

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-7. Disc Freezes or Skips The audio and video freeze and skip during play back of a DVD disc.

Is the disc inserted into the DVD HTS properly?

NO

Make sure the disc has been inserted into the DVD HTS properly. The HTS can not read a disc inserted into the unit upside down.

YES

What type of disc is the customer using?

NO

Determine the type of disc the customer is not able to play. If the customer is using a store-bought DVD, then please skip the next three questions. If it’s a recorded disc, move onto the next question.

YES

Did the customer burn this disc in a DVD recorder?

NO

Make sure the customer finalized the disc in the DVD recorder. Make sure the type of disc the customer is using is compatible with the DVD HTS. If the customer initialized a DVD-RW in VR mode, make sure the owners manual has the RW logo to show compatibility for the VR format.

YES

Did the customer burn the disc in a computer?

NO

Make sure the customer burned a compatible format (such as VCD, SVCD, or DivX). Make sure the file meets the specifications required for the HTS to play the disc. Check the owners manual for specifications. Disc may still not be compatible. Refer customer to section of OM regarding burned discs.

YES

Has the customer tried multiple discs?

NO

One disc with the problem is a problem with the disc. DVD HTSs can play scratched or dirty DVDs and not have any issues during playback. Multiple discs with the issue can mean the lens on the DVD HTS needs to be cleaned. Recommend a lens cleaner. Service DVD if lens cleaner was used.

2-22

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-8. Can Access Menu, but Not Play a Movie The disc menu is displayed but the disc will not play.

Check the system information screen of the DVD HTS.

NO

Go into the system information screen of the DVD HTS. To access this menu, bring up the main menu. Go to TV aspect, highlight 16:9, press 1397139 and hit enter. If sold in the US, this should be DVD region code 1 and DVD region code A. In case of HD-DVD, there is no region code.

YES

What is the region code of the DVD disc?

NO

If the region code of the DVD disc is not A, then the DVD disc will not play on a HTS sold in the US. The HTS can play only DVD discs labeled same as the rear of the unit.

YES

Is the disc locking up on a disclaimer screen when the customer presses play?

NO

The disc locking up on a feature needs to be reported to Q&E. See instructions on reporting problems to Q&E. For a work around the problem, advise the customer to access the chapter list. Start play back from chapter 1 to start the movie and avoid any feature lock ups.

5-9. Reporting a problem to Quality & Engineering Reporting a problem that may require a firmware update to fix.

How do I report a problem to Quality and Engineering?

NO

Get the micom version from the system information screen. Get the ISBN number from the back of the DVD box cover (the number under the barcode). Get the exact problem the customer is describing Email this information to Matt Wedgman so the issue can be reported to the factory.

2-23

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-10. Aspect Ratio The customer has bars on the top and bottom of the screen, the left and right of the screen, or both.

Is the movie wide screen or full screen?

NO

A full screen movie played on a wide screen TV will have bars on the left and right side of the TV. The customer needs to make sure they choose the appropriate type of movie they want to view.

YES

What is the aspect ratio of the DVD disc being played?

NO

If the aspect ratio is 1.33:1 then the movie is set up for full screen viewing. Bars will appear on the left and right side of the screen if the TV is wide screen. If the aspect ratio is 1.85:1 or 2.35:1, then there will be bars on the top and bottom as that ratio is bigger than widescreen TVs (1.78:1).

YES

What is the resolution of the DVD HTS set at?

NO

Try changing the resolution to 480p. 720p, 1080i and 1080p resolution require a widescreen aspect ratio which means bars will be placed on the left and right side for full screen movies.

YES

What is the aspect ratio of the television set at?

NO

Make sure the aspect of the television is set appropriately. If the aspect ratio of the television is set at 4:3 when the TV is wide screen, then a wide screen movie will show up as letterbox with bars on the top and bottom and bars on the sides.

2-24

DIGITAL DISPLAY & MEDIA TRAINING MASTER 5-11. My Unit Won’t Upconvert The customer has a problem with getting the unit to change resolutions to 480p, 720p, 1080i, or 1080p.

Is the disc currently playing?

NO

Ask the customer to press stop to stop the disc from playing. Ask the customer to press the resolution button to change the resolution. The DVD HTS will not change resolutions while the disc is playing.

YES

Is the customer using component (red, blue, and green) cables?

NO

Discs with copy protection will not upconvert above 480p when using component cables. The component output does not have HDCP (highbandwidth digital content protection) compliancy which causes the DVD HTS to switch from 720p or 1080i to 480p.

YES

Is the customer using any sort of adapter cable?

NO

RGB to DVI or RGB to HDMI adapters will not upconvert. RGB outputs and inputs are not HDCP compliant. If the customer sees an error message about HDCP, this is the issue. Copy protected discs will not upconvert when HDCP is not found on the input or output.

YES

Is the customer using an HDMI or DVI cable?

NO

Regular discs can convert to 1080p over the HDMI output and only the HDMI output. The TV has to have HDCP compliancy on the HDMI input. The display has to accept the resolution (480p, 720p, 1080i, or 1080p).

YES

Is the customer using an HDMI to DVI cable?

NO

Some movie companies will not allow their discs to upconvert past 480p. If only one disc poses a problem, then the issue is the disc. The customer will need to try multiple discs.

YES

Has the customer tried multiple discs?

NO

One disc not upconverting means the disc may not upconvert. Some movie companies will not allow their discs to upconvert. If multiple discs display the issue, remove the disc and change the resolution with no disc in the unit. If resolution will not change, the unit needs service.

2-25

ONE POINT REPAIR GUIDE 1. NO POWER PROBLEM (HIGH VOLTAGE)

No power problem occurs when you power on the unit.

1-1. Solution Replace F901, BD901 on SMPS board.

1-2. How to troubleshoot (Countermeasure) 1) Fuse F901 Damage: Check fuse Short or Open and around components. --> Replace these. 2) Bridge Diode BD901 damage: Check the Bridge Diode short. --> Replace these.

No A

Q910, Q

S/W E

IC901, IC902

BD901

F901 < SMPS board top view > 2-26

No Power

BD901 is Defective

No Power

F901 is Defective

1-3. Service hint (Any picture / Remark)

ONE POINT REPAIR GUIDE 2. NO AUDIO SPEAKER (25 V / 30 V)

No power problem occurs when you power on the unit.

2-1. Solution Replace IC902, PC902, IC903 and Q901, PC903 on SMPS board.

2-2. How to troubleshoot (Countermeasure) 1) 25 V / 30 V Abnormal: Check CN902 pin1, 2, 3 of SMPS board. 2) IC902, PC902, IC903 and around components --> Replace these. 3) Another case if there is no VC supply for IC902, please replace Q901, PC903. D923, D922 are Defective

14 VA No Power D921, D925 are Defective

No AMP Power

Switching Error

Q910, Q901 are Defective

PC901~PC903 are Defective

S/W Error IC901, IC902 are Defective

Switching Error IC903, IC904 are Defective

No Power F901 is Defective

PVDD No Power D928 is Defective

2-3. Service hint (Any picture / Remark)

CN902

IC902

PC903

Q901

PC902

< SMPS board bottom view > 2-27

IC903

ONE POINT REPAIR GUIDE 3. NO POWER PROBLEM (3.8 VA)

No power problem occurs when you power on the unit.

3-1. Solution Replace IC901, PC901 on SMPS board.

3-2. How to troubleshoot (Countermeasure) 1) 3.8 VA Abnormal: Check CN901 pin9, 10 of SMPS board. 2) IC901, PC901 and around components. --> Replace these. Vkk No Power

FLD No Powe

D926 is Defective

D927 is Defectiv

No Power

wer

No Digitron Displayed

tive

ZD951, ZD952 are Defective

D904 is Defective

6VA N D924

No Power 24 is Defective

3.8 VA No Power D923, D922 are Defective

14 VA No Power D921, D925 are Defective

No AMP Power

Switching Error

Q910, Q901 are Defective

PC901~PC903 are Defective

3-3. Service hint (Any picture / Remark)

PC901

CN901 IC901

< SMPS board bottom view >

< SMPS board top view > 2-28

ONE POINT REPAIR GUIDE 4. VFD DOESN’T DISPLAY

No VFD Display occurs when you power on the unit.

4-1. Solution Replace ZD951, ZD952, FR952 on SMPS board.

4-2. How to troubleshoot (Countermeasure) 1) FL+, FL-, VKK Abnormal: Check CN901 pin1, 2, 3 of SMPS board. 2) ZD951, ZD952, FR952 and around components. --> Replace these. FLD No Power D927 is Defective

wer

No Digitron Displayed

tive

ZD951, ZD952 are Defective

No Power

6VA No Pow

24 is Defective

D924 is Defecti

3.8 VA No Power D923, D922 are Defective

14 VA No Power D921, D925 are Defective

4-3. Service hint (Any picture / Remark)

CN901

ZD952 ZD951 FR952 < SMPS board bottom view >

< SMPS board top view > 2-29

ONE POINT REPAIR GUIDE 5. NO POWER PROBLEM

No power problem occurs when you power on the unit.

5-1. Solution Replace X100, IC105, IC101 on MAIN board.

5-2. How to troubleshoot (Countermeasure) 1) Check X100 (Crystal). --> If it does not oscillate, change X100. 2) Check IC105 (Reset IC). --> If its output voltage is not more than + 2.7 V, change IC105. 3) Check IC101 (Micom IC). --> After Power is ON if the pin63 of IC101 is not ‘High’, change IC101. But, the new Micom IC need to write program.

4

5-3. Service hint (Any picture / Remark)

X100 IC101

IC105

< MAIN board top view > 2-30

ONE POINT REPAIR GUIDE 6. SPEAKER NO AUDIO OUTPUT

No audio output problem occurs when you power on the unit.

6-1. Solution Reassemble AMP IC heat-sink, replace IC101 on MAIN board.

6-2. How to troubleshoot (Countermeasure) 1) 2) 3) 4) 5)

Reassemble AMP IC heat-sink (heat-sink screw must be assembled tightly). Still NG, please check CN902 pin1, 2, 3 (25 V or 30 V). If it is not appear VCC, change SMPS board. After changing it, if VCC is still NG, check CN901 pin8 (P-CTRL). CN901 pin8 VCC is not appear, change IC101 (Micom IC).

6-3. Service hint (Any picture / Remark)

AMP IC heatsink

IC101 < AMP board top view >

< MAIN board top view >

CN902

CN901

< SMPS board top view > 2-31

ONE POINT REPAIR GUIDE 7. USB NO DETECT

When USB insert, USB no detect on the unit.

7-1. Solution Resoldering FL500 on MAIN board. Replace JK2D3 on JACK board. Replace IC500 on MAIN board.

7-2. How to troubleshoot (Countermeasure) 1) 2) 3) 4)

Please check the soldering status of FL500 on MAIN board. Still NG, Please check CN102 on MAIN board. --> pin 8, 9 : 5 V If it is ok, replace JK2D3 (USB Jack) on JACK board. After changing it, if still NG, check IC500 (MPEG IC) on MAIN board.

7-3. Service hint (Any picture / Remark)

IC500

FL500 CN102 < MAIN board top view >

< MAIN board bottom view >

JK2D3

< JACK board top view > 2-32

ONE POINT REPAIR GUIDE 8. NO BOOTING

When you turn on your set, it will display “Hello” or “Please wait” message continuously on front panel, and it will not boot-up normally.

8-1. Solution Replace X500 on MAIN board.

8-2. How to troubleshoot (Countermeasure) 1) 2) 3) 4)

Please check the soldering status of 27 MHz crystal (X500). Please check the frequency of 27 MHz crystal (X500). If the crystal doesn’t oscillate, replace X500. After changing it, if the set is still not booting, replace MAIN Board.

8-3. Service hint (Any picture / Remark)

X500

< MAIN board top view > 2-33

ONE POINT REPAIR GUIDE 9. DISC NO READING

When you put in the disc to the set, it can’t read the disc.

9-1. Solution Re-insert FFC cable on MAIN board, replace MD Assembly.

9-2. How to troubleshoot (Countermeasure) 1) 2) 3) 4) 5)

Please check Disc region code if it is DVD. Please check connector MAIN board and MD assembly (CN400 and CN401). If two connectors are abnormal, re-insert the FFC cables. If two connectors are normal, change MD assembly. If changed MD is abnormal, check IC400 (Motor IC).

9-3. Service hint (Any picture / Remark)

CN400 < MAIN board top view >

IC400

< MAIN board bottom view > 2-34

CN401

ONE POINT REPAIR GUIDE 10. NO VIDEO OUTPUT COMPOSITE

When you turn on your set, it will display no image but the device is working. It can’t just display analog image (Composite).

10-1. Solution Replace C301, IC301, R325 on MAIN board.

10-2. How to troubleshoot (Countermeasure) 1) Please check analog video output of JK301. 2) Please check IC301 Vcc33 (pin10) and analog input & output. 3) Please check output video signal on C301, IC301 pin14, R325.

12 8 9

13

10 11

10-3. Service hint (Any picture / Remark)

C301

R325 IC301

< MAIN board top view > 2-35

14

15

ONE POINT REPAIR GUIDE 11. NO VIDEO OUTPUT COMPONENT

When you turn on your set, it will display no image but the device is working. It can’t just display analog image (Component).

11-1. Solution Replace C302 ~ C304, IC301, R322 ~ R324 on MAIN board.

11-2. How to troubleshoot (Countermeasure) 1) Please check analog video output of JK301. 2) Please check IC301 Vcc33 (pin10) and analog input & output. 3) Please check output video signal on C302 ~ C304, IC301 pin11 ~ 13, R322 ~ R324.

12 8 9

13

10 11

11-3. Service hint (Any picture / Remark)

JK301 C302 C303 C304

R323 R324 R322 IC301

< MAIN board top view > 2-36

14

15

ONE POINT REPAIR GUIDE 12. NO BOOTING

When you turn on your set, it will just display function name (DVD / CD or USB…etc) and it will not boot-up normally.

12-1. Solution Replace IC500, IC503, IC504 on MAIN board.

12-2. How to troubleshoot (Countermeasure) 1) 2) 3) 4)

Please Please Please Please

check check check check

IC500 IC500 IC504 IC503

pin44 (DVD RESET) when power on. Vcc12, Vcc33. interface with IC500 (MPEG IC). interface with IC500 (MPEG IC).

12-3. Service hint (Any picture / Remark)

IC503

IC500

IC504 < MAIN board top view >

< MAIN board bottom view > 2-37

DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1. SYSTEM 27 MHz CLOCK, RESET, FLASH R/W SIGNAL 1) MT1389FE/GH main clock is at 27 MHz (X500).

1

1 FIG 1-1

2) MT1389FE/GH reset is high active.

2 3.3 V

2

1.2 V

3

DVD_RESET

IC602

4

FIG 1-2

IC101

3

IC400

4

2-38

3) Flash R/W enable signal during download (Downloading).

SF_DI

5

SF_DO

6

6 5

FIG 1-3

2. SDRAM CLOCK 1) MT1389FE/GH main clock is at 27 MHz (X500). DCLK = 93MHz, Vp-p=2.2, Vmax=2.7V

SDCLK

7 7

FIG 2-1

2-39

3. VIDEO PART - 1 (100% FULL COLOR-BAR) 8

9

CVBS

Y

10

11

PB

PR

8 9

10 11

2-40

4. VIDEO PART - 2 (100% FULL COLOR-BAR) 12

13

CVBS_OUT

Y_OUT

14

15

PB_OUT

PR_OUT

12

13

2-41

14

15

5. HDMI PART 16

17

HDMI_SDA

HDMI_SCL

18

19

HDMI_CLK

HDMI_DATA

16

17

18 19

2-42

6. SERVO OPEN/CLOSE SIGNAL 1) Tray open/close waveform OPENSW

2) Tray close waveform 20

OPENSW

CLOSESW

CLOSESW

OPEN

CLOSE

21 22

23

OPEN

CLOSE

23 FIG 3-2

3) Tray open waveform 20

20

CLOSESW

21

OPEN

22

CLOSE

23 FIG 3-3

22

23

2-43

21

22

FIG 3-1

OPENSW

20

21

4) Sled control related signsl (No disc condition)

SLD M-STBY

24

IC400

24 25

SL+

26 SL-

27 FIG 4-1

25

26

2-44

27

5) Lens control related signsl (No disc condition)

FOD

28

F+

28 IC400

29

F-

30

FIG 5-1

30

29

6) Laser power control related signsl (No disc condition) IC500

MDI

31

DVDLD

32

CDLD

33

33 31 32 FIG 6-1

2-45

7) Disc type judgement waveforms

F+

34

PU_DET

35 34

36 RF FIG 7-1 (DVD)

F+

PU_DET

IC500

34

35 35

RF

36

FIG 7-2 (DVD)

35 : This signal can see using special debug program

36

2-46

F+

37

PU_DET

38

39

RF

37

FIG 7-3 (CD)

37

F+

PU_DET

IC500

38

RF

38

39 FIG 7-4 (CD)

38 : This signal can see using special debug program

39

2-47

8) Focus on waveforms IC500

PU_DET

40

FOD

40

41

F+

42

F-

43

FIG 8-1 (DVD)

40 : This signal can see using special debug program

41

PU_DET

40 FOD

41

F+

42

IC400

F-

43

FIG 8-2 (CD)

43

42

2-48

9) Spindle control waveforms (No disc condition)

SPIND SP-

SP+

44 45

46

FIG 9-1

44

45

2-49

46

10) Tracking control related signal (System checking) IC500

PU_DET PU_DET

47

47

TRO TRO

48 T-

T-

49 T+

T+

50

FIG 10-1(DVD)

PU_DET

47 : This signal can see using special debug program

PU_DET

47

TRO

TRO

T-

T-

T+

T+

48 49 50

FIG 10-2(CD)

48

49

2-50

50

WIRING DIAGRAM OPT

RCA JACK

i-Pod

WL

TUNER

HDMI

FAN

SPEAKER JACK

AMP PCB

CN106 2 PIN CN100 18 pin FFC

CN600

10 PIN FFC

24 PIN FFC

MAIN PCB

CN401

24 PIN FFC

23 PIN FFC

CN105

CN400

14

CN101

12 PIN FFC

12 PIN FFC

PIN Harness

CN103

CN102

CN601 14 PIN Harness CN901

MD

8 PIN B to B CN902 SYS Power

SMPS PCB


OPTIONAL PART

AMP Power

12 PIN FFC

CN2A3

USB MIC PCB MIC

PTB

12 PIN FFC

18 PIN FFC

BT PCB

CLOCK DISPLAY

CN301

FRONT PCB

USB 2-51

2-52

TOUCH KEY FUNCTION

BLOCK DIAGRAMS

1. OVERALL BLOCK DIAGRAM CEC

Component Composite IPOD_V

BT_RX

9.8304 MHz

Y, Pb, Pr

Y, Pb, Pr Out THS7374 CVBS Out IPod_V

OPTION 1100 W

Optical IN

AMP_PDN, SD, OTW

MP_HDMI SCL-SDA, TX_MPEG

HDMI Out

SPI_DO,DI,CLK,CE CVBS

V_SW

EEPROM

TAS5614L 19.2 MHz I2C

I2S

I2C, UART, SPI

NLASB3157 SPDIF

SANYO MICOM 100pin

FR,FL TAS5612L

PWM Modulator PS9854

RR, RL

TAS5612L TAS5614L

24.576 MHz

SPDIF

DIR CS8422

IPOD_A

I2S

MTK1389GH

AMP Block

27 MHz

(176 PIN)

I2C

C,W

TAS5612L TAS5614L

- 850 W use TAS5612L - 1100 W use TAS5614L

DRV603

Aux in

A_TUNER

SFCL, SFDA

ADC CS5346

A_AUX

SCL, SDA

I2C UART

Portable USB MIC

A_PTB

USB/MIC Block

S4308

DMA, DB

TRD, FOD, SLD, SPD, LOAD, TILT

A,B,C,D,E,F,RF

Motor Driver S3053

D+,D-

CP IPod

BT_ L/R

I2S

EEPROM 16kbit SDRAM 128Mbit

MAIN Block

OPU

2-53

Wireless TX Module I2C

OPTION 1100 W OPTION 1100 W

CYPRESS j€ _jYW[[]

FRONT Block VFD MC3401

MD

A_MIC

BT_TX

Serial Flash 4MBytes

VFD DO, CLK, RST

Tuner

CP_CLK, DAT, RST

DIR_I2S

OPTION 1100 W

2-54

I2C_Touch

2. AUDIO PATH BLOCK DIAGRAM

OPTION 1100 W

FR, FL TAS5612L/

BT_L/R

BT_TX

TAS5614L

NJM4580 19.2 MHz

BT_RX

Tuner

SPDATA

A_BT_TX

AMP Block

TAS5612L/ TAS5614L

- 850 W use TAS5612L - 1100 W use TAS5614L

ADATA0,1,2

MCLK A_AUX

I2C

SLAVE

27 MHz

IPOD L, R DRV603

MCLK

ADC CS5346

MTK1389GH (176 PIN)

I2C

BCLK

BCLK LRCK

LRCK

Wireless TX Module

ADATA0,1,2

OPTION 1100 W

ADATA0, 1

Portable

SW OPTION 1100W

USB/MIC Block

MIC

TAS5614L

A_TUNER

A_PTB

iPod_A

RR, RL TAS5612L/

C, W

DIR_DATA

Aux in

BCLK

PWM Modulator PS9854

MASTER

DIR_LRCK

OP_SPDIF

DIR CS8422

DIR_BCLK

BT_SPDIF

LRCK

MCLK BCLK LRCK

I2C

Optical IN

I2C

24.576 MHz

S4308

A_MIC

UART

2-55

MAIN Block 2-56

IMPORTANT SAFETY NOTICE

CIRCUIT DIAGRAMS

WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION. ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL

1. SMPS CIRCUIT DIAGRAM

12

No Power BD901 is Defective

COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION. THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED. THIS WAY, IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED.

Vkk No Power

FLD No Power

No Digitron Displayed

D926 is Defective

D927 is Defective

ZD951, ZD952 are Defective

NOTE : 1. Shaded( ) parts are critical for safety. Replace only with specified part number. 2. Voltages are DC-measured with a digital voltmeter during Play mode.

No Power D904 is Defective 11

6VA No Power D924 is Defective 10

3.8 VA No Power 9

D923, D922 are Defective

14 VA No Power D921, D925 are Defective

8

7

No AMP Power 6

Switching Error

Q910, Q901 are Defective

PC901~PC903 are Defective

S/W Error IC901, IC902 are Defective 5

Switching Error IC903, IC904 are Defective 4

No Power F901 is Defective

3

PVDD No Power D928 is Defective

2

1

SMPS EAX63689121, Rev1.5(7) 2012. 01. 04

Warning Parts that are shaded are critical with respect to risk of fire or electrical shock.

A

B

C

D

E

F

G

H

I

2-57

J

K

L

2-58

M

N

O

P

Q

R

S

T

2. MAIN - MPEG CIRCUIT DIAGRAM 12

11

16

10

17

6 9

18

5

19 8

7

6

5

1 47

7

40 4

38 35

33 3

31 32

2

MPEG EAX64506702(#2), Rev1.0(0) 2012. 01. 11

1 WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

2-59

J

K

L

2-60

M

N

O

P

Q

R

S

T

3. MAIN - SERVO CIRCUIT DIAGRAM 12

3

11

39 36 10

28

25 41

48

24 9

22

8

23

44

7

26

27

29 37 34 42

6

45 30 43

49

46 50

5

20

21

4

3

2

SERVO EAX64506702(#3), Rev1.0(0) 2012. 01. 11

1 WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

2-61

J

K

L

2-62

M

N

O

P

Q

R

S

T

4. MAIN - I/O CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

I/O EAX64506702(#4), Rev1.0(0) 2012. 01. 11

1

A

B

C

D

E

F

G

H

I

2-63

J

K

L

2-64

M

N

O

P

Q

R

S

T

5. MAIN - MICOM CIRCUIT DIAGRAM 12

11

10

9

8

7

6

4

5

4

3

2

MICOM EAX64506702(#5), Rev1.0(0) 2012. 01. 11

1 WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

2-65

J

K

L

2-66

M

N

O

P

Q

R

S

T

6. MAIN - I/O JACK CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

12 8

4

9

3

13

10

14

11

15

2

I/O JACK EAX64506702(#6), Rev1.0(0) 2012. 01. 11

1 WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

2-67

J

K

L

2-68

M

N

O

P

Q

R

S

T

7. AMP - PWM CIRCUIT DIAGRAM 12

11

2

10

9

8

7

6

5

4

3

2

PWM EAX64464003(#1), Rev1.0 (0) 2011. 12. 27

1 WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

2-69

J

K

L

2-70

M

N

O

P

Q

R

S

T

8. AMP - AMP CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

AMP EAX64464003(#2), Rev1.0 (0) 2011. 12. 27

1

A

B

C

D

E

F

G

H

I

2-71

J

K

L

2-72

M

N

O

P

Q

R

S

T

9. JACK CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

JACK EAX64644001, Rev1.3(5) 2012. 01. 11

1

A

B

C

D

E

F

G

H

I

2-73

J

K

L

2-74

M

N

O

P

Q

R

S

T

10. FRONT CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

FRONT EAX64645502, Rev1.1(1) 2011. 12. 27

1

A

B

C

D

E

F

G

H

I

2-75

J

K

L

2-76

M

N

O

P

Q

R

S

T

CIRCUIT VOLTAGE CHART 1. ICs

Pin No

Location Pin No

Spec (V)

Spec Range (V)

EE Mode (V)

Margin (V)

Playback Mode (V)

Margin (V)

IC100 EEPROM 8

(VCC)

3.3

2.5~5.5

3.45

0.15

3.45

0.15

IC101 MICOM

Pin No

Location Pin No

Spec (V)

Spec Range (V)

EE Mode (V)

Margin (V)

Playback Mode (V)

Margin (V)

134

(DVDD33)

3.3

3.1~3.6

3.31

0.01

3.34

0.04

135

(DACVDDC)

3.3

3.1~3.6

3.31

0.01

3.34

0.04

140

(DACVDDB)

3.3

3.1~3.6

3.31

0.01

3.31

0.01

(DACVDDA)

3.3

3.1~3.6

3.31

0.01

3.29

-0.01

14

(VDD)

3.3

2.8~5.5

3.47

0.17

2.68

-0.62

142

40

(VDD)

3.3

2.8~5.5

3.47

0.17

2.74

-0.56

151

(AADVDD)

3.3

3.1~3.6

3.32

0.02

3.31

0.01

55

(VDD)

3.3

2.8~5.5

3.47

0.17

2.7

-0.6

152

(APLLVDD3)

3.3

3.1~3.6

3.32

0.02

3.31

0.01

89

(VDD)

3.3

2.8~5.5

3.48

0.18

2.74

-0.56

163

(ADACVDD1)

3.3

3.1~3.6

3.32

0.02

3.31

0.01

164

(ADACVDD2)

3.3

3.1~3.6

3.32

0.02

3.31

0.01

165

(AVDD12_1)

1.2

1.1~1.3

1.23

0.03

1.24

0.04

0.00

3.31

0.01

IC102 LDO Regulator 1

(VCC)

3.7

4.3~12

3.72

0.02

3.71

0.01

IC103 LDO Regulator 1

(VCC)

6

4.3~12

5.94

IC502 EEPROM -0.06

5.72

-0.28

8

(VCC)

3.3

IC200 ADC

2.5~5.5

3.3

IC503 SDRAM

5

(VLC)

3.3

3.13~5.25

3.35

0.05

3.33

0.03

1

(VDD)

3.3

2.0~3.6

3.35

0.05

3.32

0.02

14

(VA)

5

4.75~5.25

5.22

0.22

5.22

0.22

3

(VDD)

3.3

2.0~3.6

3.35

0.05

3.32

0.02

36

(VLS)

3.3

3.13~5.25

3.34

0.04

3.33

0.03

9

(VDD)

3.3

2.0~3.6

3.35

0.05

3.31

0.01

46

(VD)

3.3

3.13~3.47

3.32

0.02

3.32

0.02

14

(VDD)

3.3

2.0~3.6

3.35

0.05

3.32

0.02

27

(VDD)

3.3

2.0~3.6

3.35

0.05

3.36

0.06

43

(VDD)

3.3

2.0~3.6

3.35

0.05

3.36

0.06

49

(VDD)

3.3

2.0~3.6

3.35

0.05

3.34

0.04

8

(VDD)

3.3

2.3~3.6

3.3

0.00

3.32

0.02

2

(Vin)

14

0.3-20

13.01

-0.99

12.97

-1.03

3.71

0.01

3.65

-0.05

3.23

-0.07

3.24

-0.06

6.01

0.01

5.99

-0.01

12.01

0.01

11.98

-0.02

IC201 3

(Vcc33)

3.3

1.71-5.25

3.38

0.08

3.29

-0.01

IC2P1 Vcc

3.3

0.3-5.5

3.33

0.03

3.33

0.03

IC301 10

-

3.3

0.3-7.0

3.37

0.07

3.32

IC504 FLASH

0.02

IC400 MOTOR

IC600

8

(VCC1)

5

4.3~13.2

5.21

0.21

5.25

0.25

19

(VCC2)

5

4.3~VCC1

5.21

0.21

5.25

0.25

2

(Vin)

3.7

0.3-20

IC601

3

(Vin)

14

~18

12.95

-1.05

13.1

-0.9

50

(Vdd_IO)

3.3

2.97-3.63

IC401

IC602 IC650

IC402 4

(Vin)

7

4.3-12.0

7.02

0.02

7.04

0.04

3

(Vout)

6

2.0-18.0

IC500 MPEG

IC700

1

(AVDD12_2)

1.2

1.1~1.3

1.2

0.00

1.24

0.04

2

(AVDD33_1)

3.3

3.1~3.6

3.37

0.07

3.31

0.01

12

(AVDD33_2)

3.3

3.1~3.6

3.37

0.07

3.31

0.01

25

(VDD12_USB)

1.2

1.1~1.3

1.23

0.03

1.24

0.04

38

(DVDD33)

3.3

3.1~3.6

3.36

0.06

3.35

0.05

57

(DVDD33)

3.3

3.1~3.6

3.37

0.07

3.3

0

67

(DVDD33)

3.3

3.1~3.6

3.36

0.06

3.32

0.02

79

(DVDD12)

1.2

1.1~1.3

1.23

0.03

1.23

0.03

92

(DVDD33)

3.3

3.1~3.6

3.37

0.07

3.33

0.03

101

(DVDD33)

3.3

3.1~3.6

3.37

0.07

3.31

0.01

109

(DVDD12)

1.2

1.1~1.3

1.23

0.03

1.24

0.04

114

(AVDD33_VPLL)

3.3

3.1~3.6

3.31

0.01

3.34

0.04

119

(AVDD12_C)

1.2

1.1~1.3

1.23

0.03

1.25

0.05

125

(AVDD12_D)

1.2

1.1~1.3

1.23

0.03

1.25

0.05

2-77

2

2-78

(Vdd)

12

0.3 - 13.2

2. CAPACITORS EE Mode

Playback

Standby

Location No.

Value & Spec.

Voltage Spec.

C102

100uF 20% 6.3V

6.3V

3.305

0

3.305

2.995

3.317

0

0.000

6.300

0

0

-

C114

10uF 20% 16V

16V

5.177

0

5.177

10.823

5.178

0

0.000

16.000

0

0

-

C123

10uF 20% 16V

16V

3.326

0

3.326

12.674

3.343

0

0.000

16.000

0

0

-

C125

47uF 20% 16V

16V

3.419

0

3.419

12.581

3.412

0

0.000

16.000

3.435

0

-

C126

10uF 20% 16V

16V

3.667

0

3.667

12.333

3.664

0

0.000

16.000

3.689

0

-

C133

47uF 20% 16V

16V

3.413

0

3.413

12.587

3.412

0

0.000

16.000

3.435

0

-

C145

10uF 20% 16V

16V

3.413

0

3.413

12.587

3.405

0

0.000

16.000

3.428

0

-

C210

10uF 20% 16V

16V

2.550

0

2.550

13.450

2.549

0

0.000

16.000

0

0

-

C211

47uF 20% 16V

16V

0.005

0

0.005

15.995

0.006

0

0.000

16.000

0

0

-

C243

10uF 20% 16V

16V

3.309

0

3.309

12.691

3.320

0

0.000

16.000

0

0

-

C245

10uF 20% 16V

16V

2.443

0

2.443

13.557

2.442

0

0.000

16.000

0

0

-

C252

10uF 20% 16V

16V

3.309

0

3.309

12.691

3.320

0

0.000

16.000

0

0

-

C2W6

100uF 20% 6.3V

6.3V

3.282

0

3.282

3.018

3.281

0

0.000

6.300

0

0

-

C304

47uF 20% 50V

50V

0.00

-22.70

22.70

27.30

0.00

-22.94

0.00

50.00

0

0

-

C309

220uF 20% 10V

10V

-

-

-

-

-

-

-

-

-

-

No Insert

C404

47uF 20% 16V

16V

1.932

0

1.932

14.068

1.917

0

0.000

16.000

0

0

-

C406

100uF 20% 6.3V

6.3V

5.176

0

5.176

1.124

5.177

0

0.000

6.300

0

0

-

C409

47uF 20% 16V

16V

3.312

2.162

1.150

14.850

3.338

3.261

2.162

13.838

0

0

-

Positive (+)

Negative (-)

Gap

Margin

Positive (+)

Negative (-)

Gap

Margin

Positive (+)

Negative (-)

Remark

C410

47uF 20% 16V

16V

3.314

3.241

0.073

15.927

3.338

3.261

3.241

12.759

0

0

-

C411

100uF 20% 6.3V

6.3V

1.223

0

1.223

5.077

1.202

0

0.000

6.300

0

0

-

C415

220uF 20% 6.3V

6.3V

5.157

0

5.157

1.143

5.177

0

0.000

6.300

0

0

-

C419

47uF 20% 16V

16V

1.341

0

1.341

14.659

1.339

0

0.000

16.000

0

0

-

C500

47uF 20% 16V

16V

1.619

0

1.619

14.381

1.622

0

0.000

16.000

0

0

-

C501

47uF 20% 16V

16V

1.580

0

1.580

14.420

1.438

0

0.000

16.000

0

0

-

C608

220uF 20% 6.3V

6.3V

1.177

0

1.177

5.123

1.176

0

0.000

6.300

0

0

-

C615

220uF 20% 6.3V

6.3V

3.225

0

3.225

3.075

3.225

0

0.000

6.300

0

0

-

C650

10uF 20% 16V

16V

5.897

0

5.897

10.103

5.899

0

0.000

16.000

0

0

-

C655

10uF 20% 16V

16V

11.830

0

11.830

4.170

11.833

0

0.000

16.000

0

0

-

C701

470uF 20% 50V

50V

26.87

0

26.87

23.13

26.88

0

0.00

50.00

3.204

0

Volume below 30

C732

470uF 20% 50V

50V

26.87

0

26.87

23.13

26.88

0

0.00

50.00

3.204

0

Volume below 30

C734

470uF 20% 50V

50V

26.87

0

26.87

23.13

26.88

0

0.00

50.00

3.204

0

Volume below 30

C765

470uF 20% 50V

50V

26.87

0

26.87

23.13

26.88

0

0.00

50.00

3.204

0

Volume below 30

C767

470uF 20% 50V

50V

26.87

0

26.87

23.13

26.88

0

0.00

50.00

3.204

0

Volume below 30

C798

470uF 20% 50V

50V

26.87

0

26.87

23.13

26.88

0

0.00

50.00

3.204

0

Volume below 30

2-79

2-80

PRINTED CIRCUIT BOARD DIAGRAMS 1. SMPS P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

2-81

2-82

NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock.

2. MAIN P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

2-83

2-84

3. AMP P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

2-85

2-86

4. JACK P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

2-87

2-88

5. FRONT P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

2-89

2-90

SECTION 3 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ......................................................................................................................................... 3-3 1. CABINET AND MAIN FRAME SECTION ................................................................................................. 3-3 2. DECK MECHANISM SECTION ................................................................................................................ 3-5 3. PACKING ACCESSORY SECTION ......................................................................................................... 3-7 4. SPEAKER SECTION ................................................................................................................................ 3-8 4-1. CENTER SPEAKER ............................................................................................................................ 3-8 4-2. FRONT / REAR SPEAKER ................................................................................................................. 3-9 4-3. PASSIVE SUBWOOFER ................................................................................................................... 3-10 5. WIRELESS RECEIVER SECTION ......................................................................................................... 3-11

3-1

MEMO

3-2

EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION 462

250L

OPTIONAL PART

250 462

CABLE3

462 H

275

B E

A43

462

462 A50 H G

A46 CABLE2

462

285

462

462

C

462

A

MAIN A

CABLE4 JACK

B

BT

F E

C

A52

D

F

A41

CABLE1 462

CN901

AMP

465 D

G

A45

265

260

462 465

SMPS

462

465 462 I

A47

320 250R

261 300 A44 261 262

I

261

MEMO

2. DECK MECHANISM SECTION 1436

1006 A002

1001

A003

A001 1005

1435 1003 1008

1004

1007 1013 1012 A004

1002

1014 1009

1020

1015 1011 A005

1016

1017

1030

1024

1437 1024 1024

1437

1437

1021 1049

1024 1437

1438

1439

A006

3. PACKING ACCESSORY SECTION

801

Owner’s manual

808 Battery

811 Video cable

823 HDMI cable

824

AM antenna

826

Filter (Ferrite Core)

825 FM antenna

840 Wireless TX dongle

900 Remote control

804

Bag

803 Packing 803

802 Box, Master

Speaker cables WIRE80 WIRE81 WIRE70 WIRE90 WIRE60 WIRE61

Front Left Front Right Center Subwoofer Rear Left Rear Right

Packing

4. SPEAKER SECTION 4-1. CENTER SPEAKER

A700

4-2. FRONT / REAR SPEAKER

A800T A800

851

A800M

A800B

851

4-3. PASSIVE SUBWOOFER

A900

5. WIRELESS RECEIVER SECTION

NOTES) NOTES) NOTES) NOTES)

Warning Parts that are shaded are critical with respect to risk of fire or electricial shock.

A330 390L

394 A81A

AMP A B

394 394 CN901 A

395

A81S

390R

392 A81M

SMPS

395

394 C

WIRELESS

394

B

391

C

393

MEMO

SECTION 4 WIRELESS RECEIVER PART CONTENTS

FIRMWARE UPDATE FOR WIRELESS DEVICE ......................................................................................... 4-2 ONE POINT REPAIR GUIDE .......................................................................................................................... 4-3 ELECTRICAL TROUBLESHOOTING GUIDE ............................................................................................... 4-5 WAVEFORMS................................................................................................................................................... 4-6 WIRING DIAGRAM .......................................................................................................................................... 4-7 BLOCK DIAGRAM ........................................................................................................................................... 4-9 CIRCUIT DIAGRAMS .................................................................................................................................... 4-11 1. SMPS CIRCUIT DIAGRAM..................................................................................................................... 4-11 2. AMP CIRCUIT DIAGRAM ....................................................................................................................... 4-13 PRINTED CIRCUIT BOARD DIAGRAMS .................................................................................................... 4-15 1. SMPS P. C. BOARD ............................................................................................................................... 4-15 2. AMP P. C. BOARD ................................................................................................................................. 4-17

4-1

FIRMWARE UPDATE FOR WIRELESS DEVICE 1. WIRELESS RX UPDATE METHOD Update must be performed without interference. 1) Select “1” on test band. - You must select a band without interference. 2) USB update - During the software update procedure, do not turn off the unit. 2-1) Copy the update file to the USB device after rename as “WIRELESS_RX.BIN”. 2-2) Insert a USB device and perform the update. - It is indicated “SEND xx” during transmission (xx is progress rate %.). - “FINALIZE” indication is blinked to FLD of main set during RX MICOM writing. * In case of connection is unstable; In case of update is no response more than 20 seconds; Update fail. * At this time, turn off RX/TX then Wireless update will fail and the previous version of program will work. 2-3) If the update is finished, RX LED is turned off and on. Main set is power off automatically. 3) Remove the power cord. After 5 seconds, reconnect the cord and turn on TX. 4) Factory 4-1) Press PAIRING button on RX for 5 seconds. - LED blinks green and red alternately to 0.5 second intervals.

Condition: 1) Wireless module update must be performed without interference. 2) You must update after switching TEST BAND. 3) After wireless module update, you must perform RX FACTORY.

2. WIRELESS TX MODULE UPDATE METHOD Update must be performed after turning off RX. 1) Insert TX module to slot. - You must turn the power on with the TX module in the slot. 2) USB update - During the software update procedure, do not turn off the unit. 2-1) Copy the update file to the USB device after rename as “WIRELESS_TX.BIN”. 2-2) Insert a USB device and perform the update. - It is indicated “WRITE xx” during transmission (xx is progress rate %.). 2-3) If the update is finished, TX shall be powered off automatically. 3) Remove the power cord. After 5 seconds, reconnect the cord and turn on TX. 4) Factory 4-1) Press set “STOP” + remote control “6” during 3 seconds to perform TX FACTORY. - “WL RESET” appears on FLD. 4-2) Press PAIRING button on RX during 5 seconds. - LED blinks green and red alternately to 0.5 second intervals. Condition: 1) After wireless module update, you must perform TX FACTORY.

4-2

ONE POINT REPAIR GUIDE 1. How to Duplicate Problem Wireless rear speaker doesn’t output a sound.

1-1. Solution Check SMPS board (No PVDD).

1-2. How to troubleshoot (Countermeasure) Check LED color of RX BOX.

YES

Color is green?

Check SMPS board.

NO

Try to remate or reset.

1-3. Service hint (Any picture / Remark)

2. How to Duplicate Problem Wireless rear speaker doesn’t output a sound.

2-1. Solution Replace RIC308 (No 12 V).

2-2. How to troubleshoot (Countermeasure) AMP 12 V (RIC308 pin4) no output.

YES

14 VA (RIC308 pin2) no input.

NO

Check 3.3 V.

NO

Replace RIC308.

2-3. Service hint (Any picture / Remark)

RIC308

RIC307

< AMP board top view > 4-3

YES

Check SMPS board.

ONE POINT REPAIR GUIDE 3. How to Duplicate Problem Wireless rear speaker doesn’t output a sound.

3-1. Solution Replace RIC307 (No 3.3 V)

3-2. How to troubleshoot (Countermeasure) PWM 3.3 V (RIC307 pin3) no YES output.

5 VA (RIC307 pin2) no input.

NO

Check Module or connection.

NO

Replace RIC307.

3-3. Service hint (Any picture / Remark)

RIC308

RIC307

< AMP board top view >

4-4

YES

Check SMPS board.

ELECTRICAL TROUBLESHOOTING GUIDE No Pairing

Check LED status.

Green LED blinks irregularly.

YES

interference.

YES

Remate.

YES

interference.

YES

Remate.

Turn off the equipment that gives interference.

NO

Red LED is turned on. NO

Check SMPS board or Module connection.

No Sound

Check sound status.

Sound cut off irregularly. NO

Check LED status.

LED is Red. NO

YES AMP PVDD (RCN301 pin9, 10) no output.

Check SMPS board.

NO

AMP 12 V (RIC308 pin4) no output.

YES

Check RIC308.

YES

Check RIC307.

NO

3.3 V (RIC307 pin3) no output.

Check Module or Connection.

4-5

Turn off the equipment that gives interference.

WAVEFORMS 1. AUDIO PART (I2S)

1 2

1

RCN303 pin1 : I2S LRCK

3

2

RCN303 pin3 : I2S BCK

3

RCN303 pin20 : I2S Audio Data

4-6

WIRING DIAGRAM

WIRELESS MODULE

26P FFC CABLE

RCN303

WIRELESS AMP

4-7

10P HARNESS CABLE

RCN301

CN901

SMPS

4-8

BLOCK DIAGRAM 1. BLOCK DIAGRAM

Main Set

Micom

Rx Box

5V

5VA

5VA

5VA

LDO

LDO

S7127F

KIA7042

Reset

3.3VA

3.3V

SDIO_W,X,Y MSG_RDY, Mute, Reset, I2C Detect MCLK (For Uplink), I2S_AUDIO

DWAM83 CU

PS9854

P_SENSE

I2C, PWM_RST, I2S_AUDIO

DWAM83

(Front, Rear, C/W)

MU

SDIO_Z

AMP_PDN AMP_SD

(Up_Stream)

SPI

ST-BY 4-9

WL_Ready

DSP

PARING STATUS

RED/BLUE_LED

P_CTRL

PWM

Serial Flash

TAS5624

SMPS (PVDD) Paring S/W

Buffer

LDO (3.3V_PWM) LDO (12V_GVDD)

4-10

CIRCUIT DIAGRAMS

IMPORTANT SAFETY NOTICE WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITH OUT PERMISSION FROM THE LG CORPORATION. ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE

1. SMPS CIRCUIT DIAGRAM

IN THE ORIGINAL CIRCUIT. SPECIAL COMPONENTS ARE NOTE : SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION. 1. Shaded( ) parts are critical for safety. Replace only with THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM specified part number. THE ACTUAL CIRCUIT USED. THIS WAY, IMPLEMENTATION 2. Voltages are DC-measured with a digital voltmeter during Play OF THE LATEST SAFETY AND PERFORMANCE mode. IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED.

12

11

10

9

8

7

6

5

4

3

2

Warning Parts that are shaded are critical with respect to risk of fire or electrical shock.

W2-SMPS EAX62564712, REV1.1 2011. 12. 27

1

A

B

C

D

E

F

G

H

I

4-11

J

K

L

4-12

M

N

O

P

Q

R

S

T

2. AMP CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

W2-AMP EAX64464402, Rev1.0(0) 2011. 12. 27

1

A

B

C

D

E

F

G

H

I

4-13

J

K

L

4-14

M

N

O

P

Q

R

S

T

PRINTED CIRCUIT BOARD DIAGRAMS 1. SMPS P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

NOTES) NOTES) NOTES) NOTES)

NOTES) NOTES) NOTES) NOTES)

Warning Parts that are shaded are critical with respect to risk of fire or electricial shock.

4-15

4-16

Warning Parts that are shaded are critical with respect to risk of fire or electricial shock.

2. AMP P. C. BOARD (TOP VIEW)

(BOTTOM VIEW)

4-17

4-18