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Internal Use Only Website http://biz.lgservice.com SERVICE MANUAL MODEL: CM9730 (CM9730, NS9730F)

SUPER POWER MINI HI-FI SYSTEM SERVICE MANUAL MODEL: CM9730

(CM9730, NS9730F)

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

P/NO : AFN75914298

JANUARY , 2013

CONTENTS SECTION SECTION SECTION SECTION

1 ........ GENERAL 2 ........ CABINET & MAIN CHASSIS 3 ........ ELECTRICAL 4 ........ REPLACEMENT PARTS LIST

1-1

SECTION 1 SUMMARY CONTENTS SERVICING PRECAUTIONS ................................................................................................................... 1-3 ESD PRECAUTIONS .................................................................................................................................. 1-5 HIDDEN KEY MODE................................................................................................................................... 1-6 SERVICE INFORMATION FOR EEPROM .......................................................................................... 1-7 PROGRAM UPGRADE GUIDE ............................................................................................................... 1-8 SPECIFICATIONS ....................................................................................................................................... 1-9

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

HIDDEN KEY MODE Push both Front key and RCU key to activate it for 5 seconds. 1. Disc Lock On/Off (CD Function Only Active) „ Front Key : STOP „ RCU Key : STOP

2. Check Version and Option code „ Front Key : STOP „ RCU Key : PLAY/PAUSE „ You can change [Audio MCU Version CD Controller Version EEPROM Option] by SKIP+/-.

3. Clear EEPROM „ Front Key : STOP „ RCU Key : SKIP-

4. Edit EEPROM „ Front Key : STOP „ RCU Key : SKIP+ „ You can change the digit of option by SKIP+/-. „ You can edit 0~f by REPEAT or PLAY/PAUSE key.

5. Bluetooth DUT „ Front Key : STOP „ RCU Key : PROGRAM „ Bluetooth model only

6. Power Disc Lock On/Off (CD Function Only Active) „ Front Key : STOP „ RCU Key : EQ

7. Amp Clip On/Off „ Front Key : STOP „ RCU Key : Mute Amp Clip Mode Change (Amp Clip On --> Amp Clip Off --> Level Down display)

8. Demo ALL Key Lock (CM9520/CM8520 Only) „ Front Key : STOP „ RCU Key : 9 Demo All Key Lock Change (All Key Lock On --> All Key Lock Off) - Working on Demo Operation only - When All Key Lock, Volume Key work only - After All Key Lock Off, it can unlock Demo Mode

1-6

SERVICE INFORMATION FOR EEPROM POWER ON

FLD no disc status

Remote control ‘ ’ + Front ‘STOP’ push same timing during 5 seconds.

DETECT NEW EEPROM (OPTION EDIT SCREEN) NAME

FLD ‘OP-0….

Move to appropriate position and make changes with remote control. ( , , /■ , REPEAT )

OP0 OP1 OP2 OP3 OP4 OP5 OP6 OP7 OP8 OP9

HEX

05 00 00 00 00 81 80 50 00 01

HEX

05 00 00 00 00 01 80 42 00 01

Press STOP key

FLD ‘write ok’

* MODEL.SUFFIX CM9730-DB.DDEULLK CM9730-FB.DARELLS CM9730-FB.DGHALLS

Remote control ‘ ’ + Front ‘STOP’ push same timing.

FLD ‘E2P CLR’

Completed

1-7

HEX

05 00 00 00 00 01 80 46 00 01

PROGRAM UPGRADE GUIDE 1. Check the download file name.

File Name

MICOM

Mpeg

EQ

CM9730_”version”.HEX

HE004_”version”.BIN

EQ_PRG.BIN

* There is the Update File only in the USB storage. 2. Copy the download file to the USB storage. 3. Insert the USB storage on USB1 or USB2 Function. 4. VFD Display 1) MICOM 2) Mpeg 3) EQ

: “WRITE XX” : “FIRMWARE” : “EQ DOWN”

5. Complete Update 1) When the Set is turned off automatically after display "UPDATED", remove the USB storage. 2) Unplugged the power cord after display "FINISHED", then remove the USB storage. Upgrade required time  Upgrade required time is determined depending on the Writing time considering the Download stability.

Upgrade time

MICOM

Mpeg

EQ

about 60sec

about 15sec

about 5sec

1-8

SPECIFICATIONS • GENERAL Power requirements Power consumption Dimensions (W x H x D) Net Weight (Approx.) Operating temperature Operating humidity Bus Power Supply

Refer to the main label. Refer to the main label. 542 x 308 x 421 mm 9.85 kg 5 °C to 35 °C (41 °F to 95 °F) 5 % to 90 % USB DC 5 V 500 mA

• INPUTS AUX IN PORT. IN

2.0 Vrms (1 kHz, 0 dB), 600 Ω, RCA jack (L, R) x 1 1.2 Vrms (3.5 mm stereo jack)

• TUNER FM Tuning Range AM Tuning Range

87.5 to 108.0 MHz or 87.50 to 108.00 MHz 522 to 1 620 kHz, 520 to 1 710 kHz or 522 to 1 710 kHz

• CD Frequency Response Signal-to-noise ratio Dynamic range

40 to 20 000 Hz 75 dB 80 dB

• AMPLIFIER Output

575 W x 4 (8 Ω at 1 kHz, THD 25 %)

• FRONT SPEAKER Type Low channel High channel Impedance Rated Input Power Max. Input power Net Dimensions (W x H x D) Net Weight

1 Way 1 speaker 2 way 2 speaker 8Ω 575 W 1150 W 520 x 720 x 499 mm 35.5 kg

• Design and specifications are subject to change without notice.

1-9

MEMO

1-10

SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS..................................................................................................................................... 2-3 1. 2. 3. 4.

CABINET AND MAIN FRAME SECTION (CM9730) ................................................................................ 2-3 MECHANISM DECK SECTION (DP17T) ................................................................................................. 2-5 WOOFER SECTION (NS9730F) .............................................................................................................. 2-7 PACKING ACCESSORY SECTION ......................................................................................................... 2-9

2-1

MEMO

2-2

EXPLODED VIEWS

NOTES) 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. CABINET AND MAIN FRAME SECTION (CM9730) A41 454

464

S

280 464

A44C A43

462

VFD

464

271 M

462 CABLE1 A54

464 464

454

X

S

281

464

A48

464 P

VOLUME

464

462

A46 X

462

K

273

Y

282

K

CABLE2

464 USB

462

L

U

A

V

464

464

462

CABLE4

R

MULTI JOG

R

T

CABLE8

259

T

M

I

I

281

Y

V

TUNER

O

462

MAIN

U

462

A

MIC

B

CABLE3

CABLE6

O

462

E

B/T A42

462

P

C

H

CABLE5 CABLE9

258

F

E

CABLE7

W

H

D

A52 Q

L

G

G

454 SMPS

B

F

462

Q

257

A47

462

C D

464 464

462

256

272

257

454

276 462

464

262 462

252 251

W

253 255 464 254 252

A44A

261 A44B

277

300

2. MECHANISM DECK SECTION (DP17T) 1439

1002

1005 1026

1003

A001

1001

1004

1030 1024 1437

1437 1024

1024 1012

1049 1437

1013

1024

1015

1016

1020

1011

A006

1019 1043 1018 1045 1439

A005

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

3. WOOFER SECTION (NS9730F) A61L A61R

A60L A60R

667

A62L A62R

665

667

666 671

666

662

652

672 667

666 651 666 652 671

LED Signal Cable

651

A63L A63R 663 671 672 664

650

670

MEMO

4. PACKING ACCESSORY SECTION

900 Remote Control

801 Owner’s Manual

AAA

AA A

808 Battery

825 FM Wire Antenna

803 Packing

804 Bag 803 Packing

802 Box

SECTION 3 ELECTRICAL CONTENTS ONE POINT REPAIR GUIDE ............................................................................................................................ 3-2 1. NO POWER ............................................................................................................................................ 3-2 2. NO BOOTING WHEN POWER ON THE SET ....................................................................................... 3-4 3. VFD IS NOT DISPLAYED WHEN POWER ON THE SET..................................................................... 3-5 4. NO BOOTING IN CD/USB FUNCTION .................................................................................................. 3-6 5. NO OPERATION OF MD ..................................................................................................................... 3-11 6. NO SOUND .......................................................................................................................................... 3-16 7. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT ........................................................................ 3-23 8. NO POWER ON (STANDBY LED IS BLINKING) ................................................................................ 3-24 9. SPEAKER NO AUDIO .......................................................................................................................... 3-25 ELECTRICAL TROUBLESHOOTING GUIDE ................................................................................................ 3-26 1. POWER SUPPLY ON SMPS BOARD ................................................................................................. 3-26 2. SYSTEM PART .................................................................................................................................... 3-30 3. NO AUDIO PART ................................................................................................................................. 3-32 4. NO LIGHTING (WOOFER SPEAKER)................................................................................................. 3-37 WAVEFORMS ................................................................................................................................................. 3-38 WIRING DIAGRAM ......................................................................................................................................... 3-43 BLOCK DIAGRAMS ........................................................................................................................................ 3-45 1. SMPS BLOCK DIAGRAM..................................................................................................................... 3-45 2. MAIN SYSTEM BLOCK DIAGRAM ...................................................................................................... 3-47 CIRCUIT DIAGRAMS ...................................................................................................................................... 3-49 1. SMPS #1 CIRCUIT DIAGRAM ............................................................................................................. 3-49 2. SMPS #2 CIRCUIT DIAGRAM ............................................................................................................. 3-51 3. MAIN - MICOM CIRCUIT DIAGRAM.................................................................................................... 3-53 4. MAIN - PWM CIRCUIT DIAGRAM ....................................................................................................... 3-55 5. MAIN - AMP CIRCUIT DIAGRAM ........................................................................................................ 3-57 6. MAIN - DSP CIRCUIT DIAGRAM......................................................................................................... 3-59 7. MAIN - RF SERVO CIRCUIT DIAGRAM ............................................................................................. 3-61 8. MAIN - ADC CIRCUIT DIAGRAM ........................................................................................................ 3-63 9. VFD CIRCUIT DIAGRAM ..................................................................................................................... 3-65 10. MAIN VOLUME CIRCUIT DIAGRAM ................................................................................................... 3-67 11. MIC CIRCUIT DIAGRAM ...................................................................................................................... 3-69 12. MULTI JOG VOLUME CIRCUIT DIAGRAM ......................................................................................... 3-71 13. USB CIRCUIT DIAGRAM ..................................................................................................................... 3-73 14. AUX / TUNER / SPEAKER LIGHT JACK CIRCUIT DIAGRAM ........................................................... 3-75 15. SPEAKER LED_MAIN CIRCUIT DIAGRAM ........................................................................................ 3-77 16. SPEAKER LED CIRCUIT DIAGRAM ................................................................................................... 3-79 CIRCUIT VOLTAGE CHART .......................................................................................................................... 3-81 PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 3-87 1. SMPS P.C.BOARD ............................................................................................................................... 3-87 2. MAIN P.C.BOARD ................................................................................................................................ 3-89 3. VFD P.C.BOARD .................................................................................................................................. 3-93 4. MAIN VOLUME P.C.BOARD ................................................................................................................ 3-95 5. MIC P.C.BOARD .................................................................................................................................. 3-95 6. JOG P.C.BOARD.................................................................................................................................. 3-97 7. USB P.C.BOARD.................................................................................................................................. 3-98 8. TUNER P.C.BOARD............................................................................................................................. 3-98 9. SPEAKER LED_MAIN P.C.BOARD ..................................................................................................... 3-99 10. SPEAKER LED P.C.BOARD ................................................................................................................ 3-99 3-1

ONE POINT REPAIR GUIDE 1. NO POWER If the unit doesn’t work by no power problem, repair the set according to the following guide. 1-1. FUSE / BRIDGE DIODE / THERMISTOR 1-1-1. Solution Please check and replace F901, BD901, TH900, TH901, TH902 on SMPS board.

1-1-2. How to troubleshoot (Countermeasure) 1) Check if the fuse F901 is open or short-circuit. 2) Check if the bridge diode BD901 is short-circuit by over current with a digital multi meter. 3) Check if the NTC thermistor TH900 ~ TH902 is normal or open.

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

< F901 > If F901 is not short-circuit, replace it with a same specifications one.

< BD901 > If BD901 is short-circuit, replace it with a new one.

3-2

< TH900 ~ TH902 > If TH900 ~ TH902 is open, replace it with a new one.

ONE POINT REPAIR GUIDE NO POWER If the unit doesn’t work by no ±PVDD problem, repair the set according to the following guide. 1-2. NO AMP POWER 1-2-1. Solution Please check and replace F911, Q911 ~ Q914 on SMPS board.

1-2-2. How to troubleshoot (Countermeasure) 1) Check if the fuse F901 is open or short-circuit. 2) Check the Drain-Source or Drain-Gate, Gate-Source Resistance of Q911~Q914 with a digital multi-meter. If it is short condition, it’s destroyed. Replace it with a new one. (Please replace 4 FET at the same time although several FET is OK)

1-2-3. Service hint (Any picture / Remark)

< F911 > If F911 is not short-circuit, replace it with a same specifications one.

< Q911 ~ Q914 > If Q911 ~ Q914 is short-circuit, replace it with a new one. 3-3

ONE POINT REPAIR GUIDE 2. NO BOOTING WHEN POWER ON THE SET The set doesn’t work when press the power button on the front board or the remote control. 2-1. FLASH MEMORY (IC101) 2-1-1. Solution Please check and replace IC101 on MAIN board.

2-1-2. How to troubleshoot (Countermeasure) 1) Check the 5.6 VA (CN102) and 3.7 VA (IC104) in standby mode. If there is no 5.6 VA, check the SMPS and if doesn’t appear 3.7 VA, check IC104. 2) Check 5.6 VA, 12 V, FL+, FL-, an 32 V when power on the set. - If the set doesn’t work regardless of what the KEY2 changes high to low while pressing the power button. X100 and X101 work normally but, if you can not power on the set, replace the IC101 with a new one on the MAIN board.

2-1-3. Service hint (Any picture / Remark)

rl€ X O—•X]P

 XWX OZYU^]_ro¡P

 XWW O`UZ_ZWto¡P

w~ y†j{ys OyX[`P

< Signal check point >

3-4

ONE POINT REPAIR GUIDE 3. VFD IS NOT DISPLAYED WHEN POWER ON THE SET When power on the set, any icons or characters on VFD are not displayed. 3-1. VFD (DIG301) 3-1-1. Solution Please check and replace DIG301 on FRONT board.

3-1-2. How to troubleshoot (Countermeasure) 1) Check if 32 V, FL+ and FL- are output from SMPS to VFD via the MAIN board. 2) Check if the IC101 outputs VFD_RST, VFD_CLK, VFD_STB and VFD_STB to the FRONT board. 3) Check if the VFD grid current amplifier circuit (Q301, Q303, Q304) on the FRONT board. Check the drive signal to the transistor’s base. If the control signals from VFD (TP302, TP303, TP304) isn’t output, replace VFD with a new one. If the transistor doesn’t work, replace it.

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

kpnZWXG} mk

{wZWYSG {wZWZSG {wZW[

yZY^O{wZW[P xZWXGl”››Œ™

xZWX

xZWZ

ˆ‰–œ›G ZW} —T—

xZW[

j“Š’G›ŒG—Š›œ™ŒSGˆ•‹G›Œ•G‹™ˆŽG›–G Œ•“ˆ™ŽŒG›U ŠŒŠ’G›ŒGžˆŒ–™”G–•G‹Œ›ˆ“šU

< Waveform of the grid current driver >

3-5

ONE POINT REPAIR GUIDE 4. NO BOOTING IN CD/USB FUNCTION After you turn on power key and displayed message in the following order (HELLO --> VOL XX --> CD or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally. 4-1. NO VCC33, VCC12 4-1-1. Solution Please check and replace IC505, IC509 on MAIN board.

4-1-2. How to troubleshoot (Countermeasure) 1) Check Voltage of IC505 pin2 on MAIN board. If IC505 pin2 (about 4.9 V) & D501 Input 5.6 VA doesn’t come out, check 5.6 VA from SMPS board. 2) If IC505 pin2 (about 4.9 V) is normal, check the PWR_CTRL (IC505 pin1) is high (about 3.3 V). If PWR_CTRL isn’t high, check pin63 of IC101 & R149,R503. 3) If PWR_CTRL is high, check R592, R593 and if there’s no defective component then replace IC505. 4) If 3.3 V (VCC33) is normal, check output (pin2, 4) voltage of IC509. If 1.2 V of IC509 pin2, 4 doesn’t come out, then replace IC509.

4-1-3. Service hint (Any picture / Remark)

IC509 IC505

D501

< MAIN board top view >

3-6

ONE POINT REPAIR GUIDE NO BOOTING IN CD/USB FUNCTION After you turn on power key and displayed message in the following order (HELLO --> VOL XX --> CD or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally. 4-2. CRYSTAL (X501) 4-2-1. Solution Please check and replace X501 on MAIN board.

4-2-2. How to troubleshoot (Countermeasure) 1) If 3.3 V & 1.2 V is normal, check Reset ‘High’ of IC501 pin153 on MAIN board. If MAIN_RESET isn’t high, check MICOM (IC101) pin59. 2) If MAIN_RESET is high, check the soldering status of 12 MHz crystal (X501). 3) If the crystal (X501) doesn’t oscillate, check R541,R542,C517,C518 around crystal (X501). If there’s no defective component, then replace X501.

4-2-3. Service hint (Any picture / Remark) R546

X501

p

v

IC501

< Signal check point >

< Signal waveform >

3-7

ONE POINT REPAIR GUIDE NO BOOTING IN CD/USB FUNCTION After you turn on power key and displayed message in the following order (HELLO --> VOL XX --> CD or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally. 4-3. SERIAL FLASH (IC503) 4-3-1. Solution Please check and replace IC503 on MAIN board.

4-3-2. How to troubleshoot (Countermeasure) 1) If the crystal (X501) does oscillate, check serial flash (IC503) on MAIN board. Check pin8(VCC), pin6(CLK), pin1(CS#), pin2(DO), pin5(DI) of below waveform. 2) If pin1, 2, 5, 6, 8 doesn’t come out, check damping resistor (R511, R513, R514, R515) of IC503. If damping resistor of IC503 is OK, then replace IC503. (it need to download program) 3) After change IC503, if It is still not below waveform, check IC501(DSP IC).

4-3-3. Service hint (Any picture / Remark) VCC CS# CLK DO

< Signal check point >

< Signal waveform >

3-8

ONE POINT REPAIR GUIDE NO BOOTING IN CD/USB FUNCTION After you turn on power key and displayed message in the following order (HELLO --> VOL XX --> CD or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally. 4-4. SDRAM (IC502) 4-4-1. Solution Please check and replace IC502 on MAIN board.

4-4-2. How to troubleshoot (Countermeasure) 1) Check below waveform & soldering status of SDRAM (IC502) on MAIN board. If pin17(#CAS), pin18(#RAS), pin19($CS), pin38(CLK), pin29(address), pin2(DQ) doesn’t come out, check damping resistor (R508, R506, R504, R507). 2) If resistor is OK, then replace IC502 (SDRAM). 3) After change IC502, if It is still not below waveform, check IC501 (DSP IC).

4-4-3. Service hint (Any picture / Remark) } jj yŒšŒ› ˆ ‹‹™Œšš ‹ˆ ›ˆ

V jz y hz V~l jhz

< Signal check point >

< Signal waveform >

3-9

ONE POINT REPAIR GUIDE NO BOOTING IN CD/USB FUNCTION After you turn on power key and displayed message in the following order (HELLO --> VOL XX --> CD or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally. 4-5. DSP IC (IC501: MLC3700A) 4-5-1. Solution Please check and replace IC501 on MAIN board.

4-5-2. How to troubleshoot (Countermeasure) 1)After check them by previous pages about NO Booting, if the set is still no booting, Check soldering status of IC501. Check boot strap option (R598, R594, R597) of IC501(DSP IC). 2) If below bootstrap waveform doesn’t come out, then replace IC501 (DSP IC).

4-5-3. Service hint (Any picture / Remark)

R546

R594 PGPB12 (Yellow) IC501

y\`[ y\`_ y\`^GOi–››–”P

R598 PAD19 (Green) R597 PAD20 (Pink)

< Signal check point >

< Bootstrap Waveform >

3-10

ONE POINT REPAIR GUIDE 5. NO OPERATION OF MD When no sound output in the CD function, you can not listen to music reading data from a CD disc if the servo motors in MD don’t work. This step is for checking the SPINDLE MOTOR among them. 5-1. SPINDLE MOTOR 5-1-1. Solution Please check and replace IC407, IC408 on MAIN board.

5-1-2. How to troubleshoot (Countermeasure) 1) Check the SPDO signal from Pin16 of IC407. If no signal, check 3.3 V(RF) and X402. 2) Check the SP- & SP+ from IC408 to CN405 for driving SPINDLE motor. It is about 3.6 Vp-p. If no signal, check +1.8 V and +5 V for IC408. 3) Check if the FFC cable is solidly connected between CN405 and MD. 4) Check the MD. If the spindle motor is sort-circuit or has any trouble, it can not rotate CD discs. Please check the function after changing another MD.

5-1-3. Service hint (Any picture / Remark)

zwR —•]G›–Gju[W\

zwT —•_G›–Gju[W\

zwR pj[W_

zwT < Waveform of SP- & SP+ for driving SPINDLE motor >

< Signal check point >

3-11

ONE POINT REPAIR GUIDE NO OPERATION OF MD When no sound output in the CD function, you can not listen to music reading data from a CD disc if the servo motors in MD don’t work. This step is for checking the SLED MOTOR among them. 5-2. SLED MOTOR 5-2-1. Solution Please check and replace IC407, IC408 on MAIN board.

5-2-2. How to troubleshoot (Countermeasure) 1) Check the SLDO signal from Pin15 of IC407. If no signal, check 3.3 V(RF) and X402. 2) Check the SLED+ & SLED- from IC408 to CN405 for driving SPINDLE motor. It is about 2.9 Vp-p. If no signal, check +1.8 V and +5 V for IC408. 3) Check if the FFC cable is solidly connected between CN405 and MD. 4) Check the MD. If the sled motor is sort-circuit or has any trouble, it can not move the pick-up module. Please check the function after changing another MD.

5-2-3. Service hint (Any picture / Remark)

zsR zsT

zsT —•`G›–Gju[W\

< Waveform of SLED- & SLED+ for driving SLED motor >

zsR —•^G›–Gju[W\

pj[W_G

< Signal check point >

3-12

ONE POINT REPAIR GUIDE NO OPERATION OF MD When no sound output in the CD function, you can not listen to music reading data from a CD disc if the servo motors in MD don’t work. This step is for checking the TRAY OPEN/CLOSE MOTOR among them. 5-3. TRAY OPEN / CLOSE MOTOR 5-3-1. Solution Please check and replace IC407, IC408 on MAIN board.

5-3-2. How to troubleshoot (Countermeasure) 1) Check MOT_OPEN & MOT_CLOSE signals from Pin62 & 63 of IC501 to IC408. If no signal, check +1.8 V & + 5 V to IC408. 2) Check LOAD± from IC408 to CN405 for driving the tray open / close motor. It is about 3.85 Vp-p. If no signal, check +5 V to IC408. If it has any trouble, replace it with a new one. 3) Check if the FFC cable is solidly connected between CN405 and MD. 4) Check the MD. If the tray motor is sort-circuit or has any trouble, it can not open or close the tray. Please check the function after changing another MD.

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

svT svROylkP svR —•[G–Gju[W\

svT —•XG›–Gju[W\ tv{†vwlu

pj[W_G

^—•G–Gpj[W_

tv{†vwlu

tv{†jsvzl ]—•G–Gpj[W_

tv{†jsvzl < Waveform for driving TRAY open / close motor >

< Signal check point >

3-13

ONE POINT REPAIR GUIDE NO OPERATION OF MD When no sound output in the CD function, you can not listen to music reading data from a CD disc if the pickup module in MD doesn’t work. This step is for checking the LASER TRACKING ACTUATOR. 5-4. LASER TRACKING ACTUATOR 5-5-1. Solution Please check and replace IC407, IC408 on MAIN board.

5-4-2. How to troubleshoot (Countermeasure) The tracking actuator makes the laser beam be positioned in the center of a track on CD disc. 1) Check the TRD signal from Pin14 of IC407. If no signal, check 3.3 V(RF) and X402. 2) Check T- & T+ from IC408 to CN404 for driving the tracking actuator. If no signal, check +1.8 V and +5 V for IC408. 3) Check if the FFC cable is solidly connected between CN404 and MD. 4) Check the MD. If the pick-up module has any trouble, it can not move the laser beam on the left or right side. Please check the function after changing another MD.

5-4-3. Service hint (Any picture / Remark)

ju[W[

{T ›–Gju[W[ {RG›–Gju[W[

{R —•X]G–Gju[W[

{T —•X^G–Gju[W[ < Waveform of T± for driving TRACKING actuator >

< Signal check point >

3-14

ONE POINT REPAIR GUIDE NO OPERATION OF MD When no sound output in the CD function, you can not listen to music reading data from a CD disc if the pickup module in MD doesn’t work. This step is for checking the LASER FOCUSING ACTUATOR. 5-5. LASER FOCUSING ACTUATOR 5-5-1. Solution Please check and replace IC407, IC408 on MAIN board.

5-5-2. How to troubleshoot (Countermeasure) The focusing actuator makes the laser beam keep a regular interval with the surface of a CD disc. 1) Check the FOD signal from Pin13 of IC407. If no signal, check 3.3 V(RF) and X402. 2) Check F- & F+ from IC408 to CN404 for driving the focusing actuator. If no signal, check +1.8 V and +5 V for IC408. 3) Check if the FFC cable is solidly connected between CN404 and MD. 4) Check the MD. If the pick-up module has any trouble, it can not move the laser beam on the top or bottom side. Please check the function after changing another MD.

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

ju[W[

mRG›–Gju[W[

mR —•X\G–Gju[W[

mT ›–Gju[W[

mT —•X_G–Gju[W[ < Waveform of TR± for driving FOCUSING actuator >

< Signal check point >

3-15

ONE POINT REPAIR GUIDE 6. NO SOUND There is no sound output in the CD FUNCTION, repair the set according to the following guide. 6-1. IN THE CD FUNCTION 6-1-1. Solution Please check and replace IC501, IC600 on MAIN board.

6-1-2. How to troubleshoot (Countermeasure) 1) Check CD_BCK, CD_LRCK, & CD_DATA signals from IC407 to IC501. If no signal, check if the RF & servo signals from MD is entered to IC407. Refer to the “No operation of MD” guide. 2) Check the following I2S signal flow. < I2S audio signal Interface > - DAC_BCK : IC501_pin4 --> IC600_pin4 - DAC_LRCK : IC501_pin5 --> IC600_pin5 (44.1 kHz) - DAC_DATA : IC501_pin85 --> IC600_pin6, 9 - DAC_MCLK : IC501_pin3 --> IC501_pin82 If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to the IC is distorted or no signal, replace it with a new one. 3) Check if “Digital audio AMP block”.

6-1-3. Service hint (Any picture / Remark)

IC407 BU9543KV

t j rVsyjrVijr j v kljGW

ὤ 㦨 khj†kh{h h k j†kh{h

j z \Z[] h k jGpj

j k GkzwG t sjZ^WW w z `_\[ w ~ tGpj t p j†v†kh{h j v kljGX

IR AMP

IRS2092+IRF6775

k h j†kh{h t p j†kp

h r \Z\_ h k jGpj m – ™Gtpj

< Waveform of I2S audio interface signals > LRCK / BCK / DATA(IC501 Pin83, 84, 85)

< I2S Signal Flow >

3-16

ONE POINT REPAIR GUIDE NO SOUND There is no sound output in the USB FUNCTION, repair the set according to the following guide. 6-2. IN THE USB FUNCTION 6-2-1. Solution Please check and replace IC501, IC504 on MAIN board & IC3U01 on USB board.

6-2-2. How to troubleshoot (Countermeasure) 1) Check +5VU to USB board. If +5.6 VA to pin2 of IC3U01(LDO) doesn’t come out, check pin4, 5 of CN502. If +5.6 VA is normal & +5VU of IC3U01 pin3 doesn’t come out, then replace IC3U01. 2) Check USB D± from main board to USB board. a. Check USB_HUB_DN/DP signals to IC501(pin16, 18) b. Check USB1/2_DN/DP signals from IC501 to CN502 (pin1, 2, 9 & 10) If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to the IC is distorted or no signal, replace it with a new one. 3) Check if “Digital audio AMP block”.

6-2-3. Service hint (Any picture / Remark) {T

IC504 USB2512B

USB1_D+/USB2_D+/-

USB Board

USB_D+/-

t j rVsyjrVijr j v kljGW h k j†kh{h

j z \Z[] h k jGpj

j k GkzwG t sjZ^WW w z `_\[ w ~ tGpj

IR AMP

IRS2092+IRF6775

k h j†kh{h j v kljGX

t p j†kp

h r \Z\_ h k jGpj m – ™Gtpj

< Waveform of USB D± signal > USB D+ / D- (CN502 Pin1, 2 & 9, 10)

< USB function signal flow >

3-17

ONE POINT REPAIR GUIDE NO SOUND There is no sound output in the AUX FUNCTION, repair the set according to the following guide. 6-3. IN THE AUX FUNCTION 6-3-1. Solution Please check and replace IC202 on MAIN board.

6-3-2. How to troubleshoot (Countermeasure) 1) Check AUX_L/R signals to IC202 (Pin7, 8). 2) Check if DAC_BCLK, DAC_LRCLK, & DAC_MCLK are entered from IC501 to IC202. 3) Check if ADC_DATA is entered from IC202 to IC501. If no signal, check +5 V & +3.3 V(ADC) for IC202. If is NG, replace it a new one. 4) Check the following I2S signal flow from IC501 to IC600. (Refer to Item 6-1.) If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to the IC is distorted or no signal, replace it with a new one. 5) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide. If AMP is damaged, replace it with a new one.

6-3-3. Service hint (Any picture / Remark) hkj†ijrG›–GyYX]

IC202 CS5346 DAC_MCLK

AUX_L/R

khj†tjsrG›–GyYYX

AUX

hkj†kh{hGG›–GyYX\ khj†syjsrG›–GyYX`

ADC_DATA

IC501 MLC3700

DAC_BCK DAC_LRCK

pjYWY

IC600 PS9854 PWM

IR AMP

IRS2092+IRF6775

h| †yG›–GyYWZ h| †sG›–GyYWY

< AUX function signal flow >

< Signal check point >

3-18

ONE POINT REPAIR GUIDE NO SOUND There is no sound output in the PORT. IN FUNCTION, repair the set according to the following guide. 6-4. IN THE PORT. IN FUNCTION 6-4-1. Solution Please check and replace IC202 on MAIN board.

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

Check PT_L/R signal from JOG board to MAIN board. Check if PT_LR is entered Pin4 & 5 of CN3J01 Pin4 & 5 of CN3V02 Pin21 & 20 of CN3V01. Check POT_L/R signals to IC202(Pin21, 22). Check if ADC_BCK, ADC_LRCK, & DAC_MCLK are entered from IC501 to IC202. Check if ADC_DATA is entered from IC202 to IC501. If no signal, check +5 V & +3.3 V(ADC) for IC202. If is NG, replace it a new one. 6) Check the following I2S signal flow from IC501 to IC600. (Refer to Item 6-1.) If there is any trouble, check the power for each IC. The power is normal but , if the signal waveform to the IC is distorted or no signal, replace it with a new one. 7) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide. If AMP is damaged, replace it with a new one.

6-4-3. Service hint (Any picture / Remark) hkj†ijrG›–GyYX]

{T

IC202 CS5346

POT_L/R

POT. IN

khj†tjsrG›–GyYYX

hkj†kh{hGG›–GyYX\ khj†syjsrG›–GyYX`

VOLUME Board w{†sG›–G—•YX

DAC_MCLK

ADC_DATA

IC501 MLC3700

pjYWY

DAC_BCK DAC_LRCK

IC600 PS9854 PWM

w{†yG›–G—•YY

IR AMP

IRS2092+IRF6775

< PORT. IN function signal flow >

< Signal check point >

3-19

ONE POINT REPAIR GUIDE NO SOUND There is no sound output in the TUNER FUNCTION, repair the set according to the following guide. 6-5. IN THE TUNER FUNCTION 6-5-1. Solution Please check and replace IC202, TU801 on MAIN board.

6-5-2. How to troubleshoot (Countermeasure) 1) Check if TUNER_LR is entered from Pin1 & 3 of TU801 to IC202(Pin23, 24). If no signals, Check +3.3 V for Tuner power. Check if the Tuner control signals (CLK, DAT, CE, RST, GPO2) are entered from IC101 to TU801. If it doesn’t work, replace TUNER with a new one. 2) Check if ADC_BCK, ADC_LRCK, & DAC_MCLK are entered from IC501 to IC202. 3) Check if ADC_DATA is entered from IC202 to IC501. If no signal, check +5 V & +3.3 V(ADC) for IC202. If is NG, replace it a new one. 4) Check the following I2S audio signal flow from IC501 to IC600. (Refer to Item 6-1.) If there is any trouble, check the power for each IC. The power is normal but, if the signal waveform to the IC is distorted or no signal, replace it with a new one. 5) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide. If AMP is damaged, replace it with a new one.

6-5-3. Service hint (Any picture / Remark) hkj†ijrG›–GyYX]

{T

IC202 CS5346 DAC_MCLK

hkj†kh{hGG›–GyYX\

TUNER TUNER_L/R

Jack Board {|uly†sG ›–G—•YZ

ADC_DATA

IC501 MLC3700

{|uly†yG ›–G—•Y[

DAC_BCK DAC_LRCK

pjYWY

IC600 PS9854 PWM

IR AMP

IRS2092+IRF6775

khj†syjsrG›–GyYX`

khj†tjsrG›–GyYYX

< TUNER function signal flow >

< Signal check point >

3-20

ONE POINT REPAIR GUIDE NO SOUND There is no sound output in the MIC IN FUNCTION, repair the set according to the following guide. 6-6. IN THE MIC IN FUNCTION 6-6-1. Solution Please check and replace IC508, IC506 on MAIN board.

6-6-2. How to troubleshoot (Countermeasure) 1) Check MIC_SIG signal to Pin6 of CN506. If no signal, Check the signal to Pin6 of CN3M01 on the MIC board. Check if the signal is entered from Pin6 of CN3M01 to MAIN board. 2) Check if MIC_SIG is entered from Pin6 of CN506 to Pin3 of IC506 (MIC AMP). 3) Check if the amplified signal is entered from Pin4 of IC506. If no signal output, check +12 V for IC506, replace IC506 with a new one if it has a problem. 4) Check if MIC_BCK, MIC_MLCK & MIC_LRCK is entered from IC501 to IC508. Check if MIC_DATA is entered from Pin9 of IC508 to Pin7 of IC600. If no signal, check +5 V & +3.3 V for IC508. If it is abnormal, change replace it a new one. 5) Check the following I2S signal flow from IC508 to IC600. If there is any trouble, check the power for each IC. If the signals are abnormal, replace it a new one. 6) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide. If AMP is damaged, replace it with a new one.

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

IC508 AK5358 DAC_MCLK

MIG_SIG

IC506 S4308

tpj†z pnUG—•GXMYG

MIC IN

MIC Board

MIC_I_DATA

IC501 MLC3700

DAC_BCK DAC_LRCK

IC600 PS9854 PWM

tpj†p†kh{hUGwpuG`

IR AMP

IRS2092+IRF6775

tpj†syjrUGwpuGXW

tpj†tjsrUGwpuXX

< MIC IN function signal flow >

tpj†ijrUGwpuGXY

< Signal check point >

3-21

ONE POINT REPAIR GUIDE NO SOUND There is no sound output in the BLUETOOTH FUNCTION, repair the set according to the following guide. 6-7. IN THE BLUETOOTH FUNCTION 6-7-1. Solution Please check and replace IC501 on MAIN board and Bluetooth module on front panel.

6-7-2. How to troubleshoot (Countermeasure) 1) Check BT_RX, BT_TX signal to Pin5, 7 of CN504. If no signal, check the signal to Pin5, 7 and Pin1(+3.3 V) of on the Bluetooth module and cable connection state. If there are no signal out from module, replace new module. 2) Check if BT_RX/TX is entered from Pin5, 7 of CN504 to Pin169, 170 to IC501 (DSP). 3) Check if MIC_BCK, MIC_MLCK & MIC_O_DATA is entered from IC501 to IC600. If no signal, check VCC12(+1.2 V) for IC501. If it is abnormal, change replace it a new one. 4) Check the following I2S signal flow from IC501 to IC600. If there is any trouble, check the power for each IC. If the signals are abnormal, replace it a new one. 5) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide. If AMP is damaged, replace it with a new one.

6-7-3. Service hint (Any picture / Remark) i{†j{zUG—•GZ i{†{UG—•G^

ju\W[

B/T Module BT_RX, BT_TX

i{†yUG—•G\

IC501 MLC3700 DAC_BCK

i{†y{zUG—•G[

IC600 PS9854 PWM

DAC_LRCK DAC_DATA

i{†j{zUG—•GX^Y IR AMP

i{†y{zUG—•GX^X

IRS2092+IRF6775

i{†{UG—•GX^W i{†yUG—•GX]`

< BLUETOOTH function signal flow >

< Signal check point >

3-22

ONE POINT REPAIR GUIDE 7. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT Audio signal output is small or not. when you power on the Middle Power Mini System. 7-1. IC700 ~ IC706 & IC708 7-1-1. Solution Please check and replace IC700 ~ IC706 & IC708 on MAIN board.

7-1-2. How to troubleshoot (Countermeasure) 1) Please check if this system is on bass blast mode. C, RL and RR make sound only on bass blast mode. 2) Check the IC700 ~ IC706 & IC708 on your eyes. 3) Check the audio signal output check (Pin13 of IC700 ~ IC706 & IC708). First, check the PWM Data input (Pin3 pin of IC700 ~ IC706 & IC708). 4) If the audio signal output has no output, try to change IC which has no output. 5) Lastly, check Speaker Terminal (CN702, CN703).

7-1-3. Service hint (Any picture / Remark)

< MAIN board top view >

3-23

ONE POINT REPAIR GUIDE 8. NO POWER ON (STANDBY LED IS BLINKING) It doesn’t turn on, and blinks standby LED(Red). 8-1. AMP FETs 8-1-1. Solution Please check and replace Q700 ~ Q705, Q708, Q709, Q714, Q716, Q719 ~ Q724 on MAIN board.

8-1-2. How to troubleshoot (Countermeasure) 1) This symptom occurs, when DC protection is detected. Main reasons are like below. - When Some of AMP FETs dead.

8-1-3. Service hint (Any picture / Remark)

Notice for FET service - In case of RF6775, Metal case, FET Drain, has electric potential. So be careful when you deal with it.

AMP FET : IRF6775

* You can see FET after removing heatsink. * Notice for Service Before repair Main Assy, you need to discharge SMPS. After then, open the connector. You should try to change both of +/- FET and Driver IC as a pair.

3-24

ONE POINT REPAIR GUIDE 9. SPEAKER NO AUDIO Speaker No Audio 9-1. AMP IC 9-1-1. Solution Please check and replace the component on MAIN board.

9-1-2. How to troubleshoot (Countermeasure) 1) Check supply voltage of AMP(CN700, CN701) & PWM signal Normal Supply voltage and signal Check AMP IC. Poor supply voltage Check SMPS Assy. Poor signal Check PWM IC. 2) Check CSD of FET driver IC (IRS2092 : EAN60778301). CSD has about 5 V on normal state. When AMP has problem, CSD is LOW state or keep change LOW to HIGH.

9-1-3. Service hint (Any picture / Remark)

j u ^WWGw puGXSYGaGT[W} w puGZS[GaGw nuk w puG\S]GaGR[W}

j u ^WWGw puGXSYGaGR[W} w puGZS[GaGw nuk w puG\S]GaGT[W}

J\Gw puG–GpjGTe Gjzk

3-25

ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER SUPPLY ON SMPS BOARD No output 5.6 VA

F901 normal?

NO

Replace F901 (same fuse).

YES BD901 normal?

NO

Replace BD901.

YES Is the VCC (11 V ~ 25 V) supplied to IC901 Pin4?

NO

D960, D961 normal?

YES Power line of MAIN PCB is short.

Check or replace D960, D961.

No 12 V

Is the VCC 13 VA supplied to IC951 Pin1?

NO

Check or replace D962, D963.

YES Is there ‘H’ signal at IC951 Pin4?

NO

Check P_CTL from μ-com.

YES Check or replace IC951. Or check line of MAIN PCB is short or not.

3-26

ELECTRICAL TROUBLESHOOTING GUIDE

No -5 V

Is the VCC -7 VA supplied to IC953 Pin2?

NO

R965 normal?

YES

NO

YES

Check or replace Q951.

Is there ‘H’ signal at Q953 Base?

NO

Check P_CTL from μ-com.

YES Check or replace Q953, Q957. Or check line of MAIN PCB is short or not.

No output VFD

R968 normal?

NO

Replace R968.

YES D959, D957 normal?

NO

Replace D959, D957.

YES ZD951, ZD952 normal?

NO

Replace ZD951, ZD952.

YES Check line of FRONT PCB is short or not.

3-27

Check or replace R965, D959.

ELECTRICAL TROUBLESHOOTING GUIDE

No output AMP gate line

Is the VCC 13 VA supplied to IC952 Pin1, 3? YES Check and replace IC952. Or check line of MAIN PCB is short or not.

NO

R952 normal? YES

Check or replace D951, D952.

3-28

NO

Check or replace R952.

ELECTRICAL TROUBLESHOOTING GUIDE

No AMP output

Is the C904, C905 voltage about 380 V?

NO

PFC P.CTL OK?

NO

Check PFC P.CTL from μ-com.

YES

YES

Is the VCC 12V supplied to IC904 Pin16?

NO

Replace D908, Q955, PC903.

YES Check or replace IC904, Q907 ~ Q910.

F911 normal? NO

Replace F911.

YES

AMP P.CTL OK?

NO

Check AMP P.CTL from μ-com.

YES Is the VCC 12V supplied to IC902 Pin8?

NO

Replace D908, Q956, PC902.

NO YES Q911 ~ Q914 OK? NO

Replace Q911 ~ Q914.

Check or replace IC902 and Check Q911 ~ Q914 gate(Pin2) Components (Resistors, Diodes).

3-29

Check or replace D953 ~ D956. Check line of MAIN PCB is short or not.

ELECTRICAL TROUBLESHOOTING GUIDE 2. SYSTEM PART Power on.

“HELLO” Display on FLD OK?

NO

YES

CN301 cable connection OK?

NO

Check 17p FFC cable.

YES CN301 pin1, 3, 5 power OK?

NO

Check SMPS board.

YES CN301 Pin9, 10, 11 data signal OK?

NO

Check MAIN board.

YES Q301, 303, 304 grid voltage OK?

Volume LED (LD3V31 ~ LD3V40 LD3V42 ~ LD3V49) Turn on?

NO

Q301, Q303, Q304 grid voltage OK?

NO

NO

Replace DIG301.

Check SMPS board.

YES

YES

CN3V01 Pin8, 9 +12 V OK?

NO

Check MAIN board.

YES Replace LED (LD3V09 ~ LD3V24).

When turn the volume, count is change? YES FRONT board OK.

NO

CN3V01 Pin31, 32 signal OK? YES Check MAIN board.

3-30

NO

Check FFC cable.

ELECTRICAL TROUBLESHOOTING GUIDE

Power on.

“HELLO” Display on FLD OK?

NO

YES

CN301 cable connection OK?

NO

Check 17p FFC cable.

YES CN301 Pin1, 3, 5 power OK?

NO

Check SMPS board.

YES CN301 Pin9, 10, 11 data signal OK?

NO

Check MAIN board.

YES Q301, 303, 304 grid voltage OK?

Volume LED (LD3V31 ~ LD3V49) Jog LED (LD3J31 ~ LD3J49) Turn on?

NO

CN3V01 Pin8, 9 CN3J01 Pin10,11 +12 V OK?

NO

NO

Replace DIG301.

Check SMPS board.

YES

YES

Check CN3V01 Pin5, 6 CN3J01 Pin15,16 I2C data OK?

NO

Check MAIN board.

YES Replace LED. (LD3V31 ~ LD3V49) (LD3J31 ~ LD3J49)

When turn the volume, count is change? YES FRONT board OK.

NO

CN3V01 Pin12, 13 signal OK? YES Check MAIN board.

3-31

NO

Check FFC cable.

ELECTRICAL TROUBLESHOOTING GUIDE 3. NO AUDIO PART CD FUNCTION

Can disc insert?

NO

YES

LOAD +- OK?

NO

Is motor_open/ close OK? (IC408 Pin9,10) YES

YES

Check IC501.

Is motor impedance about 12 Ω?

NO

Check Loading motor.

Check IC408. NO Disc reading OK?

NO

OPU driving (Focusing & Tracking) OK?

NO

YES

YES Check OPU. (Pick-up module)

IC407 Pin34,35,36 I2S output signal OK?

NO

YES

IC501 Pin95,96,97 I2S input signal OK?

Focusing/ Tracking/ Sled signal OK?

IC407 RF & Servo signal OK? YES

NO

Check IC501.

YES A

3-32

NO

NO

PD(CN404 Pin2) about 180 mV?

Check FFC cable to CN404, CN405.

ELECTRICAL TROUBLESHOOTING GUIDE

USB play

IC501 Pin16, 18 USB_HUB_D output signal OK?

NO

Check IC501.

YES When insert USB, IC504 Pin1, 2, 3, 4 USB_D signal OK?

IC3U01 USB power +5 VU OK?

NO

NO

YES

YES

A

AUX

IC202 Pin7,8 AUX input signal OK?

NO

Check audio cable.

YES IC202 Pin42,43,44 I2S input signal OK?

NO

Check IC501.

YES IC202 Pin41 ADC data output signal OK?

NO

Replace IC202.

YES A

3-33

Replace IC3U01.

ELECTRICAL TROUBLESHOOTING GUIDE

POT. IN

IC202 Pin21,22 POT. IN input signal OK?

NO

Check MIC board.

YES IC202 Pin42,43,44 I2S input signal OK?

NO

Check IC501.

YES IC202 Pin41 ADC data output signal OK?

NO

Replace IC202.

YES A

TUNER

IC202 Pin23,24 TUNER_L/R input signal OK?

NO

YES

YES

IC202 Pin42,43,44 I2S input signal OK?

TU101 TUNER_L/R output signal OK?

NO

Check IC501.

YES IC202 Pin41 ADC data output signal OK?

NO

Replace IC202.

YES A

3-34

NO

Check +3.3 V of TU101.

ELECTRICAL TROUBLESHOOTING GUIDE

A

IC501 Pin82, 83, 84 I2S data output signal OK?

NO

Check IC501.

YES IC501 pin 85 I2S data signal OK?

NO

Check IC501.

YES IC600 PWM data output signal OK?

NO

Replace IC600.

YES B

3-35

ELECTRICAL TROUBLESHOOTING GUIDE

B

IC600 Pin28,29,35,36 FL/FR± signal OK? YES

YES

YES

YES

NO

NO

YES

Pin13 of IC702, IC703,IC706,IC708 SWL/SWR audio signal OK?

YES

Check IC702, IC703, IC706, IC708.

NO

NO

±40 V,-28 V, ±5 V power voltage OK? YES

Check SMPS.

Check SMPS.

Q700,Q701, Q702,Q703,Q714,Q716,Q719, Q720 OK?

IC603, IC604 SWL/SWR audio signal OK?

Check IC603,IC604

Check IC700, IC701, IC704, IC705.

±40 V,-28 V, ±5 V power voltage OK?

YES

NO

NO

Check IC601,IC602

Pin13 of IC700,IC701,IC704,IC705 FL/FR audio signal OK?

IC600 Pin26,27,31,32 SWL/SWR± signal OK?

Check IC600.

Check IC600.

IC601, IC602 FL/FR audio signal OK?

YES

NO

NO

NO

NO

Q704,Q705, Q708,Q709,Q721,Q722,Q723, Q724 OK?

Check Q704,Q705,Q708, Q709,Q721,Q722,Q723,Q724.

Check Q701,Q702,Q703, Q704,Q714,Q716,Q719,Q720.

Check speaker cable connection.

OK

3-36

YES

ELECTRICAL TROUBLESHOOTING GUIDE 4. NO LIGHTING (WOOFER SPEAKER) CD/ USB play

CN803, CN804 Pin3,7 I2C signal OK?

NO

Check IC501.

YES CN803, CN804 Pin8 +12 V OK?

NO

Check SMPS board.

YES CN803, CN804 Pin1 +3.3 V OK? YES Check Woofer SPK.

NO

Check IC605.

YES Check SMPS board.

3-37

NO

Replace IC605.

WAVEFORMS 1. WAVEFORM OF SERVO 2 3 4 5 1

Figure 1-1. CD-16M (IC407 Pin31)

Figure 1-2. SERVO-FE, TE, FOD, RF (IC407 Pin61, 62, 63 / IC408 Pin1)

3-38

2. WAVEFORM OF MOTOR DRIVE

SL+ 8

SP+

9

6

SL-

7

SP00

Figure 2-1. SP- & SP+ for driving SPINDLE motor (IC408 Pin17, 18)

Figure 2-2. SL- & SL+ for driving SPINDLE motor (IC408 Pin11, 12)

10 LO-

MOT_OPEN 11 LO+(RED)

MOT_CLOSE

Figure 2-3. LO- & LO+ for driving Tray motor (IC408 Pin9, 10)

3-39

3. WAVEFORM OF AUDIO SIGNAL 12

13

14

AUDIO_L LRCK BCK DATA AUDIO_R

Figure 3-1. (IC501 Pin83, 84, 85)

4. WAVEFORM OF ADC

15

Figure 3-2. AUDIO_L/R

5. WAVEFORM OF USB

MCK

16 LRCK

17

18

D+

19

D-

BCK

Figure 4. ADC I2S (IC202 Pin42, 43, 44)

Figure 5. USB D+/D(CN502 Pin1, 2 & Pin9, 10)

3-40

6. WAVEFORM OF CRYSTAL

20

7. WAVEFORM OF VFD GRID CURRENT DRIVER

XI 22 23

21

CH1:R327(TP304) CH2:Q301 Emitter

XO

Figure 6. 12 MHz Crystal (IC501 Pin27, 28)

Figure 7.

3-41

MEMO

3-42

juXW_OYwPP

WIRING DIAGRAM

ju^WXO]wP

h|

z—Œˆ’Œ™ msR R

~ sR

msT m

myR

~ sT

~ yR

myT

~ yT

{|uly

k•GqˆŠ’

pV vGqhjrGw ji juXW\OX]wP

ju^WXO]wP

juYWXO]wP

w~ t

hkj

z twzGwji

jz\Z[] ju[W[OYZwP

ju[W\OXWwP

kzw tpjvt ymGpj ym pj

XWWwpu

i|`\[Z

t ljoh

ju\W[O_wP

ju\WYOXWwP

juXW[OX^wPP

juXW^OYwP

juXWYOX]wP

wz`_\\

juZWXOZZwP

ju_WYO]wP

juXW\OX]wP

ju^WWO]wP

ju^WXO]wP

mhu

mmjGjˆ‰“ŒGO^P

juZtWXO]wP

oˆ™•ŒššGjˆ‰“ŒO^P

mhu juZWXOX^wP i“œŒ

slkGYlh

}mkGw ji

{––›

qvnG} vsGwji

juZ|XOXWwP

|ziGwji slkGX`lh

Z} juXWYOX^wP

juZqWXOX^wP

juZWXOZZwP

qvnGw ji

t hpuG}–“œ”ŒGw ji

w–™›ˆ‰“Œ

juZtWXO]wP

t pjGwji 3-43

3-44

BLOCK DIAGRAMS

1. SMPS BLOCK DIAGRAM Ǹ

Ǹ

8(&

/#+05/25 +%

564#5 (N[DCEM



8

/#+0 64#05

9FF

2(%+%

4## +PVGTNGCXGF &%/

2(%1WV

8

8

(.



 8

12#/2

8#

Ǹ

Ǹ

('6 6QVGO # RQNG 8 '# )CVG &TKXG

8



8--

WEQO$6 75$/2') /QVQT&KTXG (#0.'&/KE

1P1HH

2(% 2%64.

1P1HH 1P1HH

#%.KPG (KNVGT$NQEM

8CTKUVQT :%CR .KPG(KNVGT 6JGTOKUVQT

1P1HH

Ǹ

#/2 2%64.

9FF

*CNH$TKFIG ..% 4GUQPCPV+%

+%'*5) #%

Ǹ

2WNUG 6TCPU )CVG &TKXG

3-45

('6 # 8 '#

*CNH $TKFIG ..% 64#05

#/2

28&&

8

*CNH $TKFIG ..% 64#05

#/2

3-46

(A.

)#6'

Ǹ

&KIKVCN 2QYGT #/2

(A4

59A.

Ǹ

59A4 28&&

8

%*9

2. MAIN SYSTEM BLOCK DIAGRAM 16.9344MHz 15pF h SiSjSkSlSmSwkGG

8A4( 8A%& 8

IC407

sk

IC408

S3053 Motor Drive

z |i z€xS

jk † yz{

8

MOT_MUTE/CLOSE/OPEN

QGŠˆ—ˆŠ›  z kyhtGaGXY_t m “ˆšGaGYt

USB_RESET

IC501

ADC_BCK/LRCK, DAC_MCLK

MLC3700 DSP

M00_15/A00_16

IC503

MX25L1606EM2I-12G 2MB(S/F)

Lighting

MX25L3206EM2I-12G 4MB(S/F) FRONT

8# 8

32.768KHz 22pF/27pF

VFD_STB/CLK/DO/RS T,VKK,FL+/STBY_LED,REMOCON,KEY2

MICOM_DI

8#

8(& &+)

9.8304MHz 33pF

EQ_T_A/B,EQ_M_A/B,E Q_B_A/B, KEY1 /3,PT_L/R/SE NS, JOG_A/B,B_VOL_A/B,M_VOL_A/B,

MICOM_CLK/CS/DO/ RESET 19.2MHz 22pF

+4 4GEGKXGT 8QNWOG -G[

IC101

EXP_CLK2/CLK1/DAT1

MICOM LC87F085 E2PROM_CLK/DATA

SPEANA

DSP_O_DATA

8A%&

8

8 8

IC508

ADC AK5358

MIC_I_DATA

IC510

AUX_L/R

AUX

TUNER_L/R

8

FL_OUT_P/N _OUT_P/N

8 _ 8 IC601 OP AMP A 4580 AZ AZ4580

SWL_OUT_P/N P/N P N

IC603 OP AMP A 4580 AZ AZ4580

IR_IN_FL+

IR_IN_FL-

IR_IN_SWL+

IR_IN_SWL-

IR_IN_FR+

IC602

/N / FR_OUT_P/N

PS9854 PWM

IC602 OP AMP A 4580 AZ AZ4580

SWR_OUT_P/N _P/N _

IC100

IR_IN_FR-

IR_IN_SWR+

IC604 OP AMP A 4580 AZ AZ4580

8A7%1/

8

MIC_SIGO

IR_IN_SWR-

IC700 AMP IC IRS2092 IC701 AMP IC IRS2092 IC702 IC C 70 02 AMP IC IRS2092 IC703 AMP IC IRS2092 IC704 0 AMP IC IRS2092 IC705 IC C 70 05 AMP IC IRS2092 IC706 AMP IC IRS2092 IC708 AMP IC IRS2092

8 8

8

{ hz\]ZXiG˧G pyhtwGOpyzYW`YRpym]^^\P

EEPROM 3-48

IC506

PRE,AMP S4308

MIC_SIG

AMP_OSC

ADC_PWM_DATA/CLK, DSP_PWM_RST,PWR_CTRL

3-47

Portable

TUNER

MIC_MCLK/BCK/ LRCK

SPK_CLK/DAT

Speaker

IC200 ADC CS5346

PT_L/R

ADC_DATA

SF_DI/DO SF_CS/SCK

8A%&

8

8A#&%

USB_HUB_DP/DN

DRM_WEN/CAS/RAS/SEL/CLK/CKE

EM639165TSA-6G SDRA R M SDRAM

USB2512B USB HUB

BT_RX

PWM_LRCK/BCK/DATA

IC502

IC504

BT_TX

8A%&8%%

8A%&

USB2

8A75$

12MHz

OP_SW,CL_SW

kljr kljrG tljohup

USB1

B luetooth Bluetooth h

i |z €Sjk†X]t jk † yV~S jk † tjrVi jr V s y jrVkh{h

M

s v hk·Szslk·S z w pu·S{y·Sm·

jk †kpu†kv|{

SPDO/SLDO/FOD/TRD

P/UP

m œ•Š›–•Gh‹‹Œ‹

BU9543KV RF+ SERVO

F/L

SW/L

F/R

SW/R

MIC

IMPORTANT SAFETY

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 COMPONENTS ARE SHADED ON THE

1. SMPS #1 CIRCUIT DIAGRAM

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.

12

11

10

9

8

7

6

5

4

3

2

CAUTION: Danger if fuse is incorrectly replaced. Replace only with the type identical to fuse rating and(or) model name described in main label.

1

A

B

C

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

D

E

F

G

H

SMPS #1 EAX64780401-SD_9.1.7 2012. 09. 12 I

3-49

J

K

L

3-50

M

N

O

P

Q

R

S

T

2. SMPS #2 CIRCUIT DIAGRAM 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.

1

A

B

C

D

E

SMPS #2 EAX64780401-SD_9.1.7 2012. 09. 12 F

G

H

I

3-51

J

K

L

3-52

M

N

O

P

Q

R

S

T

3. MAIN - MICOM CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 MAIN - MICOM EAX64843601-SD_4.1.4 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-53

J

K

L

3-54

M

N

O

P

Q

R

S

T

4. MAIN - PWM CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 MAIN - PWM EAX64843601-SD_4.1.4 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-55

J

K

L

3-56

M

N

O

P

Q

R

S

T

5. MAIN - AMP CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 MAIN - AMP EAX64843601-SD_4.1.4 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-57

J

K

L

3-58

M

N

O

P

Q

R

S

T

6. MAIN - DSP CIRCUIT DIAGRAM 12

11

10

9

20 8

21

7

6

5

19 18 19

4

13 12 14 18 3

2

1 MAIN - DSP EAX64843601-SD_4.1.4 2012. 09. 12

: WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

3-59

J

K

L

3-60

M

N

O

P

Q

R

S

T

7. MAIN - RF SERVO CIRCUIT DIAGRAM 12

2 11

3

5

10

9

8

7

1

6

5

4

4

11

3

6

10

7

8 9

2

1 MAIN - RF SERVO EAX64843601-SD_4.1.4 2012. 09. 12

: WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

3-61

J

K

L

3-62

M

N

O

P

Q

R

S

T

8. MAIN - ADC CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

17 16 15 3

2

1 MAIN - ADC EAX64843601-SD_4.1.4 2012. 09. 12

: WAVEFORM NUMBER A

B

C

D

E

F

G

H

I

3-63

J

K

L

3-64

M

N

O

P

Q

R

S

T

9. VFD CIRCUIT DIAGRAM 12

11

10

9

8

22

7

23

6

5

4

3

2

1

: WAVEFORM NUMBER

A

B

VFD EAX64800501-SD_3.1.3 2012. 09. 12 C

D

E

F

G

H

I

3-65

J

K

L

3-66

M

N

O

P

Q

R

S

T

10. MAIN VOLUME CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 MAIN VOLUME EAX64800401-SD_4.1.4 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-67

J

K

L

3-68

M

N

O

P

Q

R

S

T

11. MIC CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 MIC EAX64800601-SD_4.1.4 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-69

J

K

L

3-70

M

N

O

P

Q

R

S

T

12. MULTI JOG VOLUME CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 MULTI JOG VOLUME EAX64870401-SD_5.1.5 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-71

J

K

L

3-72

M

N

O

P

Q

R

S

T

13. USB CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 USB EAX64781501-SD_5.1.5 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-73

J

K

L

3-74

M

N

O

P

Q

R

S

T

14. AUX / TUNER / SPEAKER LIGHT JACK CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 AUX/ TUNER/ SPK LIGHT JACK EAX64800701-SD_5.1.5 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-75

J

K

L

3-76

M

N

O

P

Q

R

S

T

15. SPEAKER LED_MAIN CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 SPK LED_MAIN EAX65023001-SD_3.1.3 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-77

J

K

L

3-78

M

N

O

P

Q

R

S

T

16. SPEAKER LED CIRCUIT DIAGRAM 12

11

10

9

8

7

6

5

4

3

2

1 SPK LED EAX65022901-SD_3.1.3 2012. 09. 12 A

B

C

D

E

F

G

H

I

3-79

J

K

L

3-80

M

N

O

P

Q

R

S

T

CIRCUIT VOLTAGE CHART 1. ICs

IC Sym

IC Name / Type LC87F5NC8A(SANYO)

IC101 MICOM

TYPE: 100P VENDER: SANYO VDD: 14, 40, 55, 89 AZ7027RTRE1

IC102, IC103 Voltage Decetor

TYPE : 3P VENDER : BCD Vcc:1, Vout:3 AZ1117BH-ADJ

IC104 LDO

Vcc/Vdd Spec: VDD: +2.8 ~ +5.5V

VDD: +3.39V Spec:

IC601 LDO

VDD : Max 18V

Vout : Max 10V Measured Vol.:

S8082

Spec:

TYPE: 8P

PVCC,SVCC: 4.3 ~ +13.2V

VENDER: AUK

Measured Vol.:

PVCC, SVCC:6, 7

PVCC,SVCC: 5.1V

BU9543KV

Spec:

TYPE: 64P

DVDD: +2.7 ~ +3.6V

VENDER: ROHM

VDD_CORE: 1.75~ 1.95V

IC501 DSP

IC602 PWM

VIN: +2.25 ~ +16V

VENDER:TAJIN

VOUT:+1.25 ~ +15V

VIN:2, VOUT:3

Measured Vol.:

PS9854

Spec:

TYPE:68P

VDD_IO: 2.97 ~ 3.63V

VENDER:PULSUS

VDD_IN1,2: 2.2~ 3.3V

VDD_IO:

VDD_OUT,VDD_ Core

MLC3700A

Spec:

TYPE:176P

VDD33, UVDDA33,

VENDER:MCS LOGIC

PXI_ VDD33,ADCVDD33:+3.135 ~ +3.465V

VDD33, UVDDA33,

VDD12: +1.14 ~ +1.26V

PXI_ VDD33,ADCVDD33

Measured Vol.:

:1,14,20,22,26,36,50 ,87,99,117,141,167

VDD33,UVDDA33,PXI_ VDD33,ADCVDD33:3.30V

VDD12

VDD12:1.20V

1.08~1.32V Measured Vol.:

VDD_OUT1,2,

VDD_IO:3.27V

VDD_ Core:1,63,60,45,22

VDD_IN1,2: 3.27V VDD_OUT,VDD_ Core:1.25V

AK5358 TYPE:16P IC603 ADC

VENDER:AKM VA6 VD:7

Spec: VA:4.5 ~ 5.5V VD:2.7~ 3.6V Measured Vol.: VA:5.21V VD:3.28V

DVDD, AVDD : 3.29V VDD_CORE:1.85V

16,25,30,33,37,42,51

VDD_IN1,2:64,67

Measured Vol.:

VDD_CORE: 26,37

TYPE:8P

Spec:

VENDOR:BCD

DVDD, AVDD: 1,17,33,47,53,59

Spec:

VOUT:3.27V

VDD : +3.53V

Vout : 3.68V

IC407 RF IC

LM37102D

Measured Vol.:

Vin : Max 12V

Vcc/Vdd

S4308 IC605 Pre amplifier

TYPE: 6P VENDER: AUK VCC:6

Spec: VCC: +5 ~ +14V

IC504 USB HUB

TYPE: 36P VENDER:SMSC VDD33:5,10,15,23,29,36

8 14 40 55 89 1 1 2 3,4 5 36 46 14 2 3 2 3 1 17 33 47 53 58 26 37

VCC: 11.45V

8 19 5 1 14 22 26 36 50 87 99 117 141 167

Spec: VDD: 3.0V ~ 3.6V

SPEC. VOLTAGE IC100 (EEPROM) 3.3VA 3.471 IC101 (uCom) 3.447 3.475 3.3VA 3.476 3.476 IC102 (Voltage Detector) 3.3VA 3.471 IC103 (Voltage Detector) 3.3VA 3.471 IC104(LDO) 3.7VA 3.73 5.6V 5.67 IC202 (ADC) 3.3V 5V IC204 (LDO) 5.6VA 5V IC3U01 (LDO) 5.6VA 5V IC407 (RF AMP)

3.3V

3.3 5.14 5.59 5.04 5.63 5.12

PIN NO. 8 24 65 89 151 161

1.81

5V

5.04

1.8V IC501 (DSP IC)

1.82

3.3V

3.28

2 4

6 7

8 16 25 30 33 37 42 51 4 8 4 8 4 8

Measured Vol.: VDD: +3.29V

4 8

3-81

3-82

1.187

3.3V

3.3V

3.28

3.25

5.66 -> DIODE -> 4.81 3.3V 3.32 IC506 (PRE AMP) 12V 11.4 IC508 (MIC ADC) 5V 0.03 3.3V 3.3 IC509 (LDO) 1.2V 1.197 3.3V 3.286 IC510 (Serial Flash_32Mb) 3.3V 3.25 IC600 (PWM IC) 5.6VA

3.3V

IC601 (OP AMP) -5V +5V IC602 (OP AMP) -5V +5V IC603 (OP AMP) -5V +5V IC604 (OP AMP) -5V +5V

PIN NO. 2 3 1 6 10 12 15

IC505(LDO)

2 3 1.8V

1.2V

VOLTAGE

IC504 (USB HUB) 10 15 23 29 36

6

3.28

SPEC.

IC502 (SDRAM) 1 3 9 14 27 43 49

IC408 (MOTOR DRIVE)

Measured Vol.:

:8,24,65,89,151,161 USB2512B

PIN NO.

VIN:3.68V

Vin : 5.65V

IC406 Motor Driver

IC Name / Type

Measured Vol.:

TYPE : 3P Vin:3, Vout:2,4

IC Sym

1 6 10 12 15 1 6 10 12 15 1 6 10 12 15 1 6 10 12 15

3.329

1 6 10 12 15

-5 5

1 6 10 12 15

-5 5

2 3

-5 5

1 6 10 12 15

-5 5

SPEC. VOLTAGE IC605 (LDO) 3.7VA 3.71 3.3V 3.33 IC700 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC701 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC702 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC703 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC704 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC705 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC706 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6 IC707 (LDO) 5.6VA 5.67 5V 5.19 IC708 (AMP IC) +5V 5.15 -5V -4.9 -B_L -39.7 -B_L +B_L 39.6

2. CAPACITORS Location

Spec

3. CONNECTORS Voltage[V]

Location

Spec

Voltage[V]

Location

Spec

Voltage[V]

PIN NO.

DESCRIPTION

VOLTAGE

PIN NO.

DESCRIPTION

VOLTAGE

PIN NO.

DESCRIPTION

C485

220uF/16V

5.1

C765

470uF/50V

-39.7

Harness Board IN, 15P, 2.5mm

23

DGND

12

/RST

C525

47uF/16V

3.27

C492

47uF/16V

3.3

C773

470uF/50V

39.6

MAIN - SMPS

24

3.3VA

3.4

13

/SEN

C527

47uF/16V

1.18

C4H6

100uF/6.3V

1.83

C775

1uF/50V

0

25

12V

12.1

14

/SDIO

C531

47uF/16V

4.7

C791

470uF/50V

-39.7

1

VKK

32.07

26

12V

12.1

15

/SCLK

C533

47uF/16V

3.3

C303

47uF/50V

7.15

C792

100uF/16V

0.6

2

FL+

7.63

27

KEY3

16

DGND

2.415

28

EXP_DAT1

FFC, 17P, 1.25mm

29

EXP_CLK1

VFD -MAIN

DSP Block

VFD PCB

CN102

C550

47uF/16V

1.18

C313

220uF/6.3V

3.4

C7A1

470uF/50V

39.6

3

FL-

CA501

100uF/16V

11.3

C319

47uF/50V

33.1

C7A3

1uF/50V

0

4

VFDGND

C322

47uF/50V

2.6

C7B8

470uF/50V

-39.7

5

-5V

C7C7

470uF/50V

39.6

6

AGND

30

DGND

31

B_VOL_B

17

5.67

32

B_VOL_A

16

STBY_LED

5.67

33

DGND

15

REMOCON

GND

FFC, 17P, 1.25mm

14

DGND

10

AMP_P_ CTRL

MAIN - VFD

13

3.7VA

11

PFC_P_ CTRL

12

MGND

13

12V

14

MICGND

15

GATE

CA502

1uF/50V

0

CA503

4.7uF/50V

1.9

CA504

10uF/16V

2.5

C3J22

47uF/50V

12

C7E1

470uF/50V

-39.7

7

5.6VA

CA505

47uF/16V

3.3

C3J24

47uF/50V

3.3

C7E9

470uF/50V

39.6

8

5.6VA

9

1000uF/6.3V

3.4

C210

C151

47uF/16V

3.43

C211

C160

100uF/16V

12

C221 C267

47uF/16V

5.1

JOG PCB

Ucom Block C124

ADC Block

Servo Block

C7G3

470uF/50V

-39.7

0

C7G5

47uF/16V

4.78

47uF/16V

0

C7H4

470uF/50V

39.6

100uF/16V

3.3

C7K8

470uF/50V

-39.7

10uF/16V

PWM Block

C39.61

47uF/16V

1.67

C603

220uF/6.3V

1.2

C413

100uF/16V

5.1

C706

470uF/50V

AMP Block 39.6

C606

220uF/6.3V

3.3

C457

47uF/16V

3.3

C720

470uF/50V

-39.7

C684

100uF/16V

3.3

C458

47uF/16V

3.3

C728

470uF/50V

39.6

VOLUME PCB

C462

47uF/16V

3.3

C742

470uF/50V

-39.7

C3V22

47uF/50V

12

C467

3.3uF/50V

1.67

C750

470uF/50V

39.6

C3V24

47uF/50V

3.3

Location

Value Capacitor (uF)

Voltage_Spec

100V-10%

240V/50hz+10%

Measured voltage

Measured voltage

SMPS PCB C904

270uF

450V

380V

380V

C905

270uF

450V

380V

380V

C911

100uF

50V

12.5V

12.8V

C930

68uF

450V

138V

336V

C932

22uF

50V

14V

14.5V

C936

1000uF

16V

5.65V

5.68V

C947

100uF

50V

31.2V

31.5V

C956

470uF

16V

5.1V

5.08V

C957

100uF

16V

-5V

-5V

C958

100uF

25V

12V

12V

C964

100uF

25V

11.99V

11.98V

C966

2200uF

50V

39.8V

39.8V

C968

2200uF

50V

39.7V

39.7V

3-83

FFC, 33P, 1.25mm MAIN - MAIN VOLUME CN103 1

DGND

2

EQ_T_B

3

EQ_T_A

4

DGND

5

EQ_M_B

6

EQ_M_A

7

DGND

8

EQ_B_B

9

EQ_B_A

10

DGND

11

KEY1

12

AGND

13

PT_R

14

PT_L

15

AGND

16

PT_SENS

17

EXP_CLK2

18

DGND

19

JOG_B

20

JOG_A

21

M_VOL_B

22

M_VOL_A

3-84

-5V

12.14

CN301 KEY2

CN104

12

DGND

1

KEY2

11

VFD_DO

2

STBY_LED

10

VFD_CLK

3

REMOCON

9

VFD_STB

4

DGND

8

DGND

5

3.7VA

7

VFD_RST

6

DGND

6

DGND

7

VFD_DO

5

VKK

8

VFD_CLK

4

DGND

3.73

9

VFD_STB

3

FL+

10

DGND

2

NC

11

VFD_RST

1

12

DGND

13

VKK

14

DGND

15

FL+

16

NC

17

FL-

VOLTAGE

FL-

3.7

33.1 7.14 2.491

FFC, 17P, 1.25mm 12.14

JOG -VOLUME CN3J01

7.2 2.45

1

DGND

2

KEY1

3

AGND

FFC, 16P, 1.00mm

4

PT_L

MAIN - JACK

5

PT_R

CN106

6

AGND

DGND

7

PT_SENS

2

SPK_DA1

8

3.3VA

3

SPK_CLK1

9

DGND

4

SPK_DA2

10

12V

11.9

5

SPK_CLK2

11

12V

11.9

6

DGND

12

JOG_B

7

12V

12.14

13

JOG_A

8

12V

12.14

14

DGND

1

9

3.3V

3.33

15

EXP_DAT1

10

3.3V

3.33

16

EXP_CLK2

11

INT

17

KEY3

3.4

CONNECTORS PIN NO.

DESCRIPTION

VOLTAGE

PIN NO.

DESCRIPTION

HARNESS, 10P, 2.00mm

29

USB - MAIN

30

VOLTAGE

PIN NO.

DESCRIPTION

VOLTAGE

EQ_M_B

17

T(-)

1

DGND

18

F(-)

2

VOLTAGE

+PVDD_R

39.6

CN3U1

31

EQ_T_A

19

SW PDIC

D2+

32

EQ_T_B

20

GND

4

2

D2-

33

DGND

21

CD LD

5

3

DGND

FFC, 17P, 1.25mm

22

MON MPD

6

4

REC_KEY

VOLUME -JOG

23

CD VR

FFC, 16P, 1.00mm

5

USB_P_ CTRL

CN3V02

HARNESS, 10P, 2.00mm

JACK - MAIN

DGND

MAIN - USB

CN801

6

5.6VA

5.63

7

5.6VA

5.63

8

DGND

9

D1+

10

D1FFC, 33P, 1.25mm MAIN VOLUME - MAIN CN3V01

1

DGND

2

B_VOL_A

3

B_VOL_B

4

DGND

5

EXP_CLK1

6

EXP_DAT1

7

KEY3

8

12V

12.1

9

12V

12.1

10

3.3VA

3.4

11

DGND

12

M_VOL_A

13

M_VOL_B

14

2

KEY1

3

AGND

1

4

PT_L

5

PT_R

6

AGND

7

PT_SENS

8

3.3VA

9

DGND

10

12V

11

12V

12

JOG_B

13

JOG_A

14

DGND

15

EXP_DAT1

16

EXP_CLK2

17

KEY3

3.4 11.9 11.9

DGND

2

SPK_DA1

2

D2-

3

SPK_CLK1

3

DGND

4

SPK_DA2

4

REC_KEY

5

SPK_CLK2

5

USB_P_ CTRL

6

DGND

7

12V

12.14

6

5.6VA

5.63

8

12V

12.14

7

5.6VA

5.63

9

3.3V

3.33

8

DGND

10

3.3V

3.33

9

D1+

11

INT

D1-

CN504 1

VDD

2

RESET

3

CTS

4

RTS

5

RXD

3.29

1

NC/FHMVCC

6

GND

JOG_A

2

RF

7

TXD

15

JOG_B

3

DVD LD

8

GND

16

DGND

4

MON(COM)/5V

Harness Board IN, 5P, 2.5mm

17

EXP_CLK2

5

DVD VR

MAIN - SMPS

18

PT_SENS

6

GND

CN700

19

AGND

7

VREF/VC

1.658

1

20

PT_L

8

VCC

5.06

2

21

PT_R

9

F

3

22

AGND

10

E

4

23

KEY1

11

A

5

24

DGND

12

D

6

25

EQ_B_A

13

C

Harness Board IN, 5P, 2.5mm

26

EQ_B_B

14

B

MAIN - SMPS

27

DGND

15

F(+)

CN701

28

EQ_M_A

16

T(+)

5.06

-39.7

1

MAIN - BT MODULE

CN404

-PVDD_R

D2+

FFC, 8P, 1.00mm

MAIN - MD

PGND_R

CN502

10

FFC, 23P, 1.00mm

3

DESCRIPTION

1

1

5.06

PIN NO.

+PVDD_L

12

/RST

13

/SEN

14

/SDIO

15

/SCLK

16

DGND

39.6

PGND_L -PVDD_L

3-85

-39.7

3-86

PRINTED CIRCUIT BOARD DIAGRAMS

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

1. SMPS P.C.BOARD

3-87

3-88

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

3-89

3-90

MAIN P.C.BOARD (BOTTOM VIEW)

3-91

3-92

3. VFD P.C.BOARD

3-93

3-94

4. MAIN VOLUME P.C.BOARD

5. MIC P.C.BOARD

3-95

3-96

6. JOG P.C.BOARD

7. USB P.C.BOARD

8. TUNER P.C.BOARD

3-97

3-98

9. SPEAKER LED_MAIN P.C.BOARD

(BOTTOM VIEW)

(TOP VIEW)

10. SPEAKER LED P.C.BOARD (TOP VIEW)

(BOTTOM VIEW)

3-99

3-100

MEMO

MEMO

3-101

3-102