Mcd606-A0p.jbrallk Lgeaz Afn75496350 Ev

8/18/2019 Mcd606-A0p.jbrallk Lgeaz Afn75496350 Ev

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Mini Hi-Fi SystemSERVICE MANUAL

MODEL: MCD606 (MCD606, MCS1306F)CAUTION

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

M ODE L : M C D 6 0 6 ( M C D 6 0 6 ,M C S 1 3 0 6 F )

S E RV I C E

MAN UAL

P/NO : AFN75496350 JULY, 2011

Website http://biz.lgservice.com

Internal Use Only


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CONTENTS

SECTION 1 ........GENERAL

SECTION 2 ........CABINET & MAIN CHASSIS

SECTION 3 ........ELECTRICAL

SECTION 4 ........REPLACEMENT PARTS LIST


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SECTION 1

SUMMARY

CONTENTS

SERVICING PRECAUTIONS ................................................................................................................... 1-3

ESD PRECAUTIONS .................................................................................................................................. 1-5

SERVICE INFORMATION FOR EEPROM .......................................................................................... 1-6

PROGRAM DOWNLOAD GUIDE ........................................................................................................... 1-7

SPECIFICATIONS ..................................................................................................................................... 1-10


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NOTES REGARDING HANDLING OF THE PICK-UP1. 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.

2. Repair notes1) 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/ordamage 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.

Storage in conductive bag Drop impact

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

SERVICING PRECAUTIONS


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NOTES REGARDING COMPACT DISC PLAYER REPAIRS1. Preparations1) 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 magnet-ism 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 unit2) 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 isbecause 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 stat-ic 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.

Resistor(1 MΩ)

Armband


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Electrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such componentscommonly 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 shouldbe 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 acommercially available discharging wrist strap device, which should be removed for potential shock reasonsprior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surfacesuch 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 ESDdevices.

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 byconductive foam, aluminum foil or comparable conductive materials).

7. Immediately before removing the protective material from the leads of a replacement ESD device, touch theprotective 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 OTHERSAFETY PRECAUTIONS.

ESD PRECAUTIONS


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POWER ON

FLD no disc status

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

FLD ‘OP-0….

Move to appropriate position and

make changes with remote control. ( , , / ■ , REPEAT )

Press STOP key

NAME

OP0

OP1

OP2

OP3

OP4 OP5

OP6

OP7

OP8

OP9

DETECT NEW EEPROM(OPTION EDIT SCREEN)

HEX

09

00

00

00

0069

90

07

90

09

SERVICE INFORMATION FOR EEPROM


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1. AUDIO PROGRAM

Download program file name must be MCD606_YYMMDDX.HEX

If security program (Water Wall) is activated on your PC, you must save the file to the usb storage

device and disable the security software, then download the file to your set.

Caution: When downloading the file, you should neither unplug the usb device, change to the other

function, nor power off the device. Usb device must be unplugged when the downloading

process is completed.

ON VFD DISPLAY SCREEN

NO USB

↓ ← Insert usb device at usb function

READ

↓

FIRMWARE

↓

WRITE 00 .. 100

PROGRAM DOWNLOAD GUIDE


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2. CD PROGRAM

Download program file name must be HD003_DATE_00.BIN







NO USB


READ

↓

FIRMWARE

↓

FINISH


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3. BEAT BOX PROGRAM

Download program file name must be BEAT_BIN_DATE_00.BIN







NO USB


READ

↓

FIRMWARE

↓

FINISH


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SPECIFICATIONS

• GENERAL

Power requirements Refer to main labelPower consumption Refer to main labelDimensions (W x H x D) 285 x 390 x 380 mm without footNet Weight (Approx.) 7 kgOperating temperature 5 °C to 35 °C (41 °F to 95 °F)Operating humidity 5 % to 90 %Bus Power Supply USB DC 5 V 500 mA iPod DC 5 V 1 A

• INPUTS/ OUTPUTS

ANALOG AUDIO IN 1.2 Vrms (1 kHz), 600 Ω, RCA jack (L, R) x 1PORT. IN 0.5 Vrms (3.5 mm stereo jack)ANALOG AUDIO OUT 800 mVrms (1 kHz), 600 Ω, RCA jack (L, R) x 1

• TUNERFM Tuning Range 87.5 to 108.0 MHz or 87.50 to 108.00 MHzAM Tuning Range 522 to 1 620 kHz, 520 to 1 710 kHz or 522 to 1 710 kHz

• AMPLIFI ERStereo mode 270 W + 270 W (4 Ω at 1 kHz)

• CDFrequency Response 40 to 20 000 HzSignal-to-noise ratio 75 dBDynamic range 80 dB

• SPEAKERSFront speakerT 2 W 2 k


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SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

DISASSEMBLY AND ASSEMBLY FOR MECHANISM DECK (CDM-H1803) ........................ 2-21. ORDER OF DISASSEMBLY FOR MECHANISM DECK .......................................................................... 2-2

2. ORDER OF ASSEMBLY FOR MECHANISM DECK ................................................................................ 2-6

EXPLODED VIEWS ................................................................................................................................... 2-111. CABINET AND MAIN FRAME SECTION (MCD606) ............................................................................. 2-11

2. MECHANISM DECK SECTION (CDM-H1803) ....................................................................................... 2-13

3. PACKING ACCESSORY SECTION ....................................................................................................... 2-154. SPEAKER SECTION .............................................................................................................................. 2-16


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DISASSEMBLY AND ASSEMBLY FOR MECHANISM DECK (CDM-H1803)1. ORDER OF DISASSEMBLY FOR MECHANISM DECK

Figure 1

1) Disassemble the Cover Guide Disc.

2

2) Disassemble the Loading FFC from the Main PCB Assy.Turn the Gear in OPEN direction as shown in Figure 2

to take out the Tray Loading Assy in 3 direction.


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ORDER OF DISASSEMBLY FOR MECHANISM DECK

2

1 4) Loosen the screw to pull up and disassemble theTray Disc.

Figure 4

5) Loosen the screw to pull up and disassemble theGear Tray CAM.


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1

2

3

Figure 7

7) Disassemble the Harness Cable from the Base Main.Disassemble the Base Sled Assy from the Base Main

by referring to Figure.2

1


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1

2

4

10) Use a solder to remove the Motor Jump Wire from theMain PCB Assy and then disassemble the FFC Cable.Loosen the screw to disassemble the Main PCB Assy.


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2. ORDER OF ASSEMBLY FOR MECHANISM DECK

1) Assemble the Loading Motor Assy to the Base Main.(When assembling the Motor Assy, use the hook onthe surface of the Base Main to preassemble, and then

tighten the screws.)

Figure 1

1

2

3

2) Set the Guide UD on the Base Main.After setting the part, push it in direction 3.


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3) Set the Gear Loading 1 and Gear Pulley 2 on the

Base Main.Hang the belt between the Gear Pulley and Motor Pulley.Assemble the Clamp Disc, Clamp Magnet and CoverPlate to the Base Main.

4) After setting the Gear Main 2, Gear Pu Up 3 and GearPu Down 4 on the Base Main, tighten the screws.

After assembling the Gear Main, align the location asshown in Figure.

ORDER OF ASSEMBLY FOR MECHANISM DECK

1

2

Figure 3

1


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1

2

3

2

1


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2

1



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1

2



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2-11 2-12

EXPLODED VIEWS1. CABINET AND MAIN FRAME SECTION (MCD606)

H

J

F

E

G

I

D

C

A26

267

264

A49

A43

268

269

300

A44

271

272

464

464

464

464

464

464

464

464

464

464

464

464

270

A45

A42

CABLE1

CABLE7

CABLE6

CABLE2

iPod

VOLUME

VFD

USB

464

A

B

E

A

B

F

HD

G

I

J

C

A46

265

463

464

464

463

463

A47

266

MAIN

SMPS

CN101

CN102

251

255B

255A

255C

NOTES) THE EXCLAMATION POINT WITHIN AEQUILATERAL TRIANGLE IS INTEND

TO ALERT THE SERVICE PERSONNE

TO THE PRESENCE OF IMPORTANT

SAFETY INFORMATION IN SERVICE

LITERATURE.


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2-13 2-14

2. MECHANISM DECK SECTION (CDM-H1803)MEMO

A02

A01

153A

012B

012B

012A

151 416

153

159

155

177

182

416

417

417

001

002

003

173

172

166

167

164 175

440

012

137

012

012

012

010

180

162

163

165

422

422

421

421

421

421

A26

443

443

443

156


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801 Owner’s Manual

900 Remote Control

910 Cover

824 AM Loop Antenna

825 FM Wire Antenna

803 Packing

3. PACKING ACCESSORY SECTION


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A60R

A60L

4. SPEAKER SECTION 4-1. FRONT SPEAKER (MCS1306F)


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SECTION 3 ELECTRICAL

CONTENTS

TRAINING MASTER ................................................................................................................................... 3-21. NO SOUND FROM SPEAKERS ............................................................................................................ 3-22. NO SOUND IN AUX FUNCTION............................................................................................................ 3-33. NO SOUND IN PORT. IN FUNCTION ................................................................................................... 3-44. NO SOUND IN IPOD FUNCTION .......................................................................................................... 3-55. NO SOUND IN AM/FM FUNCTION ....................................................................................................... 3-66. NO SOUND IN CD FUNCTION .............................................................................................................. 3-77. NO SOUND IN USB FUNCTION............................................................................................................ 3-98. NO POWER .......................................................................................................................................... 3-10

ONE POINT REPAIR GUIDE ................................................................................................................. 3-111. NO POWER .......................................................................................................................................... 3-112. NO BOOTING WHEN POWER ON THE SET ..................................................................................... 3-133. VFD IS NOT DISPLAYED WHEN POWER ON THE SET................................................................... 3-144. NO OPERATION OF MD ..................................................................................................................... 3-155. NO SOUND .......................................................................................................................................... 3-21

ELECTRICAL TROUBLESHOOTING GUIDE .................................................................................. 3-291. POWER SUPPLY ON SMPS BOARD ................................................................................................. 3-292. SYSTEM PART .................................................................................................................................... 3-333. NO AUDIO PART ................................................................................................................................. 3-344. DIGITAL AUDIO AMP CHECK ............................................................................................................. 3-39

WAVEFORMS ............................................................................................................................................. 3-40

WIRING DIAGRAM ................................................................................................................................... 3-43

BLOCK DIAGRAMS 3-45


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Are the speaker cables connected correctlybetween the speaker terminals on the unit

and the speakers?

Make sure to connect the cables to each specified

connector tightly on the unit.Connect the woofer cables to the WOOF SYSTEM

connectors on the rear panel.

YES

NO

Does the customer select correctly

the input function he or she wants to listen to?

Make sure to connect some cables like A/V cables

and FM/AM antenna cables.

YES

NO

After pressing FUNCTION,

is “CD, USB, AUX, IPOD, AM or FM” displayed?

Make sure to select the desired input function

pressing FUCTION button.

YES

NO

Turn the master volume clockwise

for the volume up.

The volume level LEDs around the master volume

will be turned on more and more

while turning it clockwise for the volume up.

YES

NO

1. NO SOUND FROM SPEAKERS

TRAINING MASTER


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Does the customer select correctlythe AUX function he or her wants to listen to?

Make sure to connect some cablesbetween the AUX IN jacks of the unit

and the Audio output jacks of a external Audio device.

YES

NO

After pressing the FUNCTION,

is “AUX” displayed on VFD?

Make sure to select the AUX IN function

pressing the AUX/IPOD/PORT. IN button.

YES

NO


for the volume up.

The volume level LEDs around the master volumewill be turned on more and more


YES

NO

Is there any sound

from the selected input source?

Refer to a device’s instruction manual

and then check if there is sound output

from it connecting another audio system

YES

NO

2. NO SOUND IN AUX FUNCTION

TRAINING MASTER


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Does the customer select correctlythe PORT. IN function he or her wants to listen to?

Make sure to connect a cablebetween the PORT. IN jack of the unit and the Audio

output jack of a portable device like a MP3 player.

YES

NO

Is “PORT. IN” displayed on VFD?

Make sure to select the PORT. IN function

pressing the AUX/IPOD/PORT. IN button.

YES

NO


for the volume up.

The volume level LEDs around the master volumewill be turned on more and more


YES

NO

Is there any sound

from the selected input source?

Refer to a portable device’s instruction manual

and then check if there is sound output

from it connecting another audio system.

YES

NO

3. NO SOUND IN PORT. IN FUNCTION

TRAINING MASTER


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Does the customer select correctlythe iPod function he or she wants to listen to?

Make sure to put a iPod or a iPhoneon the docking system on the top of the unit.

YES

NO

Does the customer use the compatible iPod?

Make sure that The unit supports the modelsas follows/iPod nano 1 G, 2 G, 3 G, 4 G, 5 G, 6 G/

iPod classic/ iPod 4 G, 5 G/ iPod touch 2 G, 3 G, 4 G/ iPhone 3 G, 4 G/.

YES

NO

After displaying “Loading”,

is “IPOD” displayed on VFD?

If “ERROR”message is displayed, make sure firmly to put aiPod or a iPhone on the docking system on the top of the unit.When the battery of a iPod or a iPhone is fully discharged, theunit can not detect IPOD function, Please wait for a moment

and then it will work after charging a little.

YES

NO

After selecting desired songsusing the user interface of a iPod or a iPhone,

press PALY button and turn the master volumeclockwise for the volume up.

The volume level LEDs around the master volume

will be turned on more and more


YES

NO

4. NO SOUND IN IPOD FUNCTION

TRAINING MASTER


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Does the customer select correctlythe AM/FM function he or she wants to listen to?

Make sure to connect AM/FM antennason the rear panel of the unit.

YES

NO

Is “AM or FM” displayed on VFD?

Make sure to select AM or FM function

pressing the FUNC button.

YES

NO

After tuning a desired channelusing the TUNING± button,

is the sound quality good to listen to the music?

To prevent noise pickup, keep the AM Loopantenna away from the unit and other components.

Be sure to fully extend the FM wire antenna. After

connecting the FM wire antenna, keep it horizontal.

YES

NO

Is the signal strength of the radio station too week? Make sure to tune the station manually.

YES

NO

5. NO SOUND IN AM/FM FUNCTION

TRAINING MASTER


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Does the customer select correctlythe CD function he or she wants to listen to?

Make sure to put on a CD disc on the tray.

YES

NO

Is a CD disc put on the tray correctly? Make sure to insert the CD disc upside down.

YES

NO

Does the unit display “NO DISC” on VFD

when a disc is inserted on the tray?

Place the disc with the label

or printed side facing upwards.

YES

NO

Does the customer use

the supported mp3 or WMA music files on the disc?

Check the playable disc.

Make sure that the file extensions

are “.mp3” or “.wma”.

YES

NO

6. NO SOUND IN CD FUNCTION

TRAINING MASTER


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YES

NO

NO

TRAINING MASTER

Are the speaker cables connected correctlybetween the speaker terminals on the unit

and the speakers?

Make sure to connect the cablesto each specified connector tightly on the unit.

YES

NO

The sound is output from the speakers. Sound OK

NO

YES


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Does the customer select correctlythe USB function he or she wants to listen to?

Make sure to insert a USB on the USB portson the bottom of the unit.

YES

NO

Is “USB” displayed on VFD?Make sure to select the USB function

pressing the CD/USB button.

YES

NO

Does the unit display “SELECTED” on VFD

when a USB is inserted into the USB port?

When “No USB” is displayed,make sure that the customer uses the recommended

USB which support USB2.0 or USB1.1.

YES

NO

Does the customer use the supported

mp3 or WMA music files on the disc?

Check if it is the playable disc or not.

Make sure that the file extensions are

“.mp3”or “.wma”.

YES

NO

7. NO SOUND IN USB FUNCTION

TRAINING MASTER


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The sound is output from the speakers. Sound OK

YES

NO

Is the power cord plugged

into a electrical outlet?

Make sure to plug the power cord of the unit

into a electrical outlet.

YES

NO

Does the Standby LED light

in red color?

If the customer can not see the red lighton the front panel, the SMPS might have any problem.

Please solve the problemreferring to the service manual.

YES

NO

8. NO POWER

TRAINING MASTER


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ONE POINT REPAIR GUIDE

1. NO POWER

If the unit doesn’t work by no power problem, repair the set according to the followingguide.

1-1. FUSE & BRIDGE DIODE1-1-1. SolutionPlease check and replace F901, BD901, TH901, TH903 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 DB901 is short-circuit by over current with a digital multi meter.3) Check if the NTC thermistor TH901 and TH902 is normal or open.


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NO POWER

If the unit doesn’t work by no power problem, repair the set according to the followingguide.

1-2. D951, ZD9511-2-1. SolutionPlease check and replace D951, ZD951 on SMPS board.

1-2-2. How to troubleshoot (Countermeasure)1) Check the Anode-Cathod Voltage of D951 with a digital multi-meter, it is normally 0.2 ~ 0.3 V. If it doesn’t have any voltage, it’s destroyed. Replace it with a new one.2) Check if ZD951 is short-circuit.

If it is short-circuit, and then replace it with a new one.

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


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2. NO BOOTING WHEN POWER ON THE SETThe set doesn’t work when press the power button on the front board or the remotecontrol.

2-1. FLASH MEMORY2-1-1. SolutionPlease check and replace IC101 on MAIN board.

2-1-2. How to troubleshoot (Countermeasure)1) Check the 3.7VA to CN102, CN103, and CN104 in standby mode. If there is no 3.7 VA, check the SMPS.2) Check 5.6 V, 12 VA, FL+, FL- and 32 V when power on the set.

- If the set doesn’t work regardless of what the KEY1 changes high to low while pressing the powerbutton. 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.



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3. VFD IS NOT DISPLAYED WHEN POWER ON THE SETWhen power on the set, any icons or characters on VFD are not displayed.

3-1. VFD3-1-1. SolutionPlease 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.



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4. NO OPERATION OF MDWhen no sound output in the CD function, you can not listen to music reading datafrom a CD disc if the servo motors in MD don’t work. This step is for checking theSPINDLE MOTOR among them.

4-1. SPinDLE MOTOR4-1-1. SolutionPlease check and replace IC407, IC408 on MAIN board.

4-1-2. How to troubleshoot (Countermeasure)1) Check the SPDO signal from Pin16 of IC407. If no signal, check 3.3V(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.



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NO OPERATION OF MDWhen no sound output in the CD function, you can not listen to music reading datafrom a CD disc if the servo motors in MD don’t work. This step is for checking theSLED MOTOR among them.

4-2. SLED MOTOR4-2-1. SolutionPlease check and replace IC407, IC408 on MAIN board.

4-2-2. How to troubleshoot (Countermeasure)1) Check the SLDO signal from Pin15 of IC407. If no signal, check 3.3V(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 +1.8V and +5V 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 pickup module.




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NO OPERATION OF MDWhen no sound output in the CD function, you can not listen to music reading datafrom a CD disc if the servo motors in MD don’t work. This step is for checking theTRAY MOTOR among them.

4-3. TRAY MOTOR4-3-1. SolutionPlease check and replace IC407, IC408 on MAIN board.

4-3-2. How to troubleshoot (Countermeasure)1) Check TUR+ & TUR-signals from Pin56 & 57 of IC501 to IC406. If no signal, check +5 V to IC406.

2) Check TUR_M+ & TUR_M- from IC406 to CN405 for driving TRAY motor. It is about 3.8 Vp-p. If no signal, check +5 V to IC406. 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 rotate the tray.




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NO OPERATION OF MDWhen no sound output in the CD function, you can not listen to music reading datafrom a CD disc if the servo motors in MD don’t work. This step is for checking theTRAY OPEN/CLOSE MOTOR among them.

4-4. TRAY OPEN / CLOSE MOTOR4-4-1. SolutionPlease check and replace IC407, IC408 on MAIN board.

4-4-2. How to troubleshoot (Countermeasure)1) Check MOT_OPEN & MOT_CLOSE signals from Pin104 & 105 of IC501 to IC408. If no signal, check +1.8 V & + 5 V to IC408.

2) Check LOAD± from IC406 to CN405 for driving the tray open / close motor. It is about 3.85 Vp-p. If no signal, check +5 V to IC406. 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.




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NO OPERATION OF MDWhen no sound output in the CD function, you can not listen to music reading datafrom a CD disc if the pickup module in MD doesn’t work. This step is for checking theLASER TRACKING ACTUATOR.

4-5. LASER TRACKING ACTUATOR4-5-1. SolutionPlease check and replace IC407, IC408 on MAIN board.

4-5-2. 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 pickup 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.



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NO OPERATION OF MDWhen no sound output in the CD function, you can not listen to music reading datafrom a CD disc if the pickup module in MD doesn’t work. This step is for checking theLASER FOCUSING ACTUATOR.

4-6. LASER FOCUSING ACTUATOR4-6-1. SolutionPlease check and replace IC407, IC408 on MAIN board.

4-6-2. 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 pickup 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.



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5. NO SOUNDThere is no sound output in the CD FUNCTION, repair the set according to the follow-ing guide.

5-1. IN THE CD FUNCTION5-1-1. SolutionPlease check and replace IC501, IC602, IC801 on MAIN board.

5-1-2. 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 on Item 4.

2) Check the following I2S signal flow. < I2S audio signal Interface > - DAC_BCK: IC501_87Pin --> IC507_16Pin --> IC602_4Pin

- DAC_LRCK : IC501_88Pin --> IC507_5Pin --> IC602_4Pin (44.1 kHz) - DAC_DATA : IC501_83Pin --> R817 next to IC01 --> IC602_6/9Pin

- DAC_MCLK : IC501_86Pin --> R818 next to IC801 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” on Item 5-2 is normal.


IC407


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NO SOUNDThere is no sound output by DIGITAL AUDIO AMP DAMAGE, repair the set accordingto the following guide.

5-2. BY DIGITAL AUDIO AMP DAMAGE (IN ALL FUNCTIONS)5-2-1. SolutionPlease check and replace IC701, IC702, IC703 on MAIN board.

5-2-2. How to troubleshoot (Countermeasure)1) Check FL±, FR±, RL±, RR±, SW1±, & SW2± signals from IC602 to IC701, 702 & 703 each input

function. If no signal, check if I2S audio signals are entered to IC602.

Refer to “I2S audio signal interface” on Item 5-1.2) Check PVDD_48V.

If 48 V is abnormal, check the SMPS.3) Check +12 for driving the gate of AMP IC.

a. All the powers are normal, but if +12 V is low, there is possible for AMP IC to be damaged. b. Remove a ferrite bead among FB703, FB707 and FB713 one by one.

When removed a ferrite bead, if +12 V is recovered, the IC connected to it was damaged.

c. Replace the IC with a new one.4) Check the impedance between SPK+ & GND and SPK- & GND.

a. If the impedance is 0 Ω, the IC must be damaged. b. After removing the heat sink, replace it with a new one.

Comments !!If a AMP IC among three is damaged, “AMP_PDN” to R103 changes HIGH to LOW at regular intervals.

The sound is not output by AMP power down function.


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NO SOUNDThere is no sound output in the USB FUNCTION, repair the set according to the fol-lowing guide.

5-3. IN THE USB FUNCTION5-3-1. SolutionPlease check and replace IC501, IC504 on MAIN board & IC3U01 on USB board.

5-3-2. How to troubleshoot (Countermeasure)1) Check +5VU to USB board.

If the USB LEDs are turned on, the voltage is okay, if so not, check +5.6 V to Pin8 of CN602.2) Check USB D± from main board to USB board.

a. Check USB_HUB_DN/DP signals to IC501(Pin116, 117) b. Check USB1/2_DN/DP signals from IC504 to CN602 (Pin10, 11, 13, & 14)

If there is any trouble, check the power for each IC. The power is normal but , if the signal waveform tothe IC is distorted or no signal, replace it with a new one.

3) Check if “Digital audio AMP block” on item 5-2 is normal.


USB

Board

IC504

USB2512B

ADC_DATA DAC_MCLK

USB_D USB


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NO SOUNDThere is no sound output in the AUX FUNCTION, repair the set according to the fol-

lowing guide.

5-4. IN THE AUX FUNCTION5-4-1. SolutionPlease check and replace IC202 on MAIN board.

5-4-2. How to troubleshoot (Countermeasure)1) Check AUX_L/R signals to IC202 (Pin7, 8).

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 signal flow from IC501 to IC602. (Refer to Item 5-1.)

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 on Item 5-2. If AMP is damaged, replace it with a new one.


AUX

IC202

CS5346

ADC_DATA DAC_MCLK

AUX_L/R


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NO SOUNDThere is no sound output in the IPOD FUNCTION, repair the set according to the fol-

lowing guide.

5-5. IN THE IPOD FUNCTION5-5-1. SolutionPlease check and replace IC201, IC202, IC203 on MAIN board.

5-5-2. How to troubleshoot (Countermeasure)1) Check USB VBUS_+5V to Pin3 of CN201 after inserting the iPod to IPOD Docking System.

If no power, check if IPOD_P_CTRL to Pin3 of IC203 change Low to High.2) Check if IPOD Audio L/R signals are entered from Pin11 & 12 of CN201 to Pin10 & 6 of IC201.

3) Check if the IPOD Audio L/R that some noise is removed to IC201 are output from Pin1 & 5 of IC201. If no signal, replace the IC with a new one.

4) Check IPOD_L/R signals from 1 & 5 of IC201 to IC202(Pin26, 27).5) Check if ADC_BCK, ADC_LRCK & DAC_MCLK are entered from IC501 to IC202.

6) Check if ADC_DATA is entered from IC202 to IC501. If there is no signal, check +5 V & +3.3 V(ADC) for IC202. If is NG, replace it a new one.

7) Check the following I2S signal flow from IC501 to IC602. (Refer to Item 5-1.)


8) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide on Item 5-2. If an AMP is damaged, replace it with a new one



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NO SOUNDThere is no sound output in the PORT. IN FUNCTION, repair the set according to the

following guide.

5-6. IN THE PORT. IN FUNCTION5-6-1. SolutionPlease check and replace IC202 on MAIN board.

5-6-2. How to troubleshoot (Countermeasure)1) Check PT_L/R signal from Main board to USB board.

2) Check if PT_LR is entered from Pin1 & 3 of CN3U01 to Pin1 & 3 to CN502.3) Check POT_L/R signals to IC202(Pin21, 22).

4) Check if ADC_BCK, ADC_LRCK, & DAC_MCLK are entered from IC501 to IC202.5) 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 IC602. (Refer to Item 5-1.)


7) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide on Item 5-2.

If AMP is damaged, replace it with a new one


IC202

CS5346POT. INUSB

Board

POT_L/R


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NO SOUNDThere is no sound output in the TUNER FUNCTION, repair the set according to the

following guide.

5-7. IN THE TUNER FUNCTION5-7-1. SolutionPlease check and replace IC202, TU101 on MAIN board.

5-7-2. How to troubleshoot (Countermeasure)1) Check if TUNER_LR is entered from Pin1 & 3 of T1U01 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 TU101.

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 IC602. (Refer to Item 5-1.) 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 on Item 5-2. If AMP is damaged, replace it with a new one.


IC202 TUNER

TUNER_L/R


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NO SOUNDThere is no sound output in the MIC IN FUNCTION, repair the set according to the

following guide.

5-8. IN THE MIC IN FUNCTION5-8-1. SolutionPlease check and replace IC603, IC605 on MAIN board.

5-8-2. How to troubleshoot (Countermeasure)1) Check MIC_SIG signal to Pin 27 of CN104.

If no signal, Check the signal to Pin 3 of CN301 on the FRONT board.Check if the signal is entered from Pin3 of CN301 to MAIN board.

2) Check if MIC_SIG is entered from Pin27 of CN104 to Pin3 to IC605 (MIC AMP).3) Check if the amplified signal is entered from Pin4 of IC605.

If no signal output, check +12 V for IC605, replace IC605 with a new one if it has a problem.4) Check if MIC_BCK & MIC_LRCK is entered from IC507 to IC603 and DAC_MLCK from IC501 to IC603.

Check if MIC_DATA is entered from Pin 9 of IC603I to Pin 7 of IC602. If no signal, check +5 V & +3.3 V for IC603. If it is abnormal, change replace it a new one.

6) Check the following I2S signal flow from IC603 to IC602.

If there is any trouble, check the power for each IC. If the signals are abnormal, replace it a new one.7) Check if the digital audio AMP block is okay. Refer to “Digital Audio AMP” guide on Item 5-2.

If AMP is damaged, replace it with a new one.



54/93

ELECTRICAL TROUBLESHOOTING GUIDE

1. POWER SUPPLY ON SMPS BOARD

YES

YES

YES

YES

No output 3.7 / 5.6 VA

Replace F901 (same fuse).

Replace D904.

Replace BD901.

Replace IC934.

NO

NO

NO

NO

NO

F901 normal?

D904 normal?

BD901 normal?

IC934 normal?


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YES

YES

YES

YES

No output 12 V

Replace F901 (same fuse).

Replace D904.

Replace BD901.

Replace D934, D935.

NO

NO

NO

NO

F901 normal?

D904 normal?

BD901 normal?

D934, D935 normal?



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YES

YES

YES

YES

No output FL+/FL-

Check 3.3 V Output & P-CTRL.

Replace ZD931.

Replace D931, D932.

Replace FR931.

NO

NO

NO

NO

P-CTRL OK?

ZD931 OK?

D931, D932 OK?

FR931 short?



57/93


No AMP Output

Check 3.3V & P-CTRL.

Replace ZD912, ZD913.

Replace D951, D952.

Replace D914/ Q900/ PC901.

Is theVCC supplied to

IC911 Pin7?

ZD912, ZD913OK ?

D951, D952OK ?

NO

NO

NO

NO

NO

P-CTRL OK?

Q901,D904OK?

YES

YES

YES

YES



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Power on.

Check FFC cable (Pin29).

Check MAIN board.

Check SMPS board.

Replace DIG301.Q301, 303, 304

grid voltage OK?

“HELO”Display on FLD

OK?

NO NO

NO

NO

NO

CN301cable connection

OK?

CN301Pin20, 21, 22 data signal

OK?

CN301Pin27, 28, 29 power

OK?

2. SYSTEM PART

YES YES

YES

YES



59/93


CD FUNCTION

Is motor_open/ close OK?

(IC408 Pin9,10)

Check IC408.

Check IC301.

Check Loading motor.

OPU driving(Focusing & Tracking) OK?

Is motor impedanceabout 12 Ω?

Candisc insert?

Disc reading OK?NO

NO

NO

NO

NO

Focusing/Tracking/ Sled Signal

OK?

LOAD +- ok ?

YES

NO

YESYES

3. NO AUDIO PART



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USB play

Check IC501.

Replace IC3U01.

IC501Pin116,117 USB_D output

signal OK?

NO

NOIC3U01USB power +5 V

OK?

YES

A

When insertUSB,IC502 Pin1,2,3,4 USB_D

signal OK?

NO

YES

YES



61/93


A

YES

YES

YES

POT. IN

Check USB board.

Replace IC202.

Check IC501.

NO

NO

NO

IC202Pin21,22 POT. IN input signal

OK?

IC202Pin41 ADC data output signal

OK?

IC202Pin42,43,44 I2S input signal

OK?



62/93


TUNER

Check IC501.

Replace IC202.

Check +3.3 V of TU101.

IC202Pin42,43,44 I2S input

signal OK?

IC202Pin41 ADC data outputsignal OK?

NO

NO

NOTU101TUNER_L/R output

signal OK?

YES

A

IC202Pin21,22 TUNER_L/R input

signal OK?

NO

YES

YES

YES



63/93


A

YES

YES

YES

YES

Replace IC501.

Replace IC507.

Check IC507.

Check IC501.

NO

NO

NO

NO

IC501Pin83,87,88 I2S data output

signal OK?

IC507Pin7,14 BEAT_LRCK/BCK output

signal OK?

IC507Pin2,17 DAC_BCK/LRCK input

signal OK?

IC501Pin83 BEAT_DAC_DATA output

signal OK?



64/93


4. DIGITAL AUDIO AMP CHECK

B

Replace IC602.

Check IC801 & IC501.

Check IC602. Check IC602.

IC602PWM data output signal

OK?

IC602I2S input signal

OK?

IC701

FL±/FR± input signalOK?

IC703

RL±/RR± input signalOK?

IC702

SW1±/SW2± input signalOK?

NO

NO

NO NO

YES

YES

YES YESYES

WAVEFORMS


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WAVEFORMS

1. WAVEFORM OF SP- & SP+ FORDRIVING SPINDLE MOTOR

2. WAVEFORM OF SL- / SL+ FORDRIVING SLED MOTOR


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5. WAVEFORM OF RF SERVO 6. WAVEFORM OF I2S SIGNAL TOBEAT BOX IC (IC801)


67/93

9. WAVEFORM OF USB_D±

WIRING DIAGRAM


68/93

3-43 3-44

10P15P

25P

16P

18P

14P

15P29P


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2. SMPS BLOCK DIAGRAM


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3-47 3-48

Digital

Power

AMP

FL

FR

SW

C

SL

SR

TRANS

MAIN&

AMP

Filter

Section(Varistor,

Resistor,Line Filter

Thermistor)

Rectifier Circuit

(Bridge,

CAPACITOR)

AMP Power &

UC3844 forMain Power FET

AC

Snubber

STR-A6252 for

Main Power

MAIN

TRANS

SMPSSPEANA

Q601

IC605MIC AMP

S4308 FAN

IC201IPOD AMP

NJM2794

VCC12IC509

KIA1112FIC701/702/703POW AMP FRONT LED VOLUME LED

3. POWER BLOCK DIAGRAM


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3-49 3-50

+12V

+3.7VA

+5.6V

S4308Q701

IC102RESET

KIA7027

D102

D104

IC101U_COM

IC601LDO

TJ3965D

TU101

TUNER YST996

IC103PWR SENS

IC100EEPROM24CS16

IC602

PWMPS9850

IC603

ADC(MIC)AK5358A

NJM2794

IC501MCS

MLC9800

IC502

SDRAMEM638165

IC503FLASH

MX25L8005

IC506

CP2.0B

Q405

IC407RF

BU9543KV

Q406

+1.8V

+3.3V

IC504USB HUB

USB2512A

POW AMP

TAS5631 9EA x 2 9EA

DIG301

VFD

RMC301

REMOCONIC507

74AHC244

IC401TJ3965D

IC801BEAT BOXFS-503B

IC802

TJ3965D

VCC12A

IC803

BOOTFLASH 16MB

IC805BEAT SOURCE

FLASH 32MB

WOOFEREXTENDERx2

12VA

IC505

278P33

IC203IPOD PWRLM39102D

IC3U01

USB PWRLM39102D

IC408MOTOR

AM3053S

IC406

MOTORS8082

ADC

IC202CS5346

VCC33

+5VIC604

DRV603

+3.3V(ADC)

+3.3V(CD)

+3.3V(RF)

+3.3V(USB)

+3.3V(BEAT)

IC80674AHC244

IC80774AHC244

D301

IC5058TJ3965D

+48VIC701/702/703AUDIO AMP

TAS5631

+3.3V(CD)

FLDIG301

D101

D302

CIRCUIT DIAGRAMS1. SMPS CIRCUIT DIAGRAM

IMPORTANT SAFETY NOTICE

WHEN SERVICING THIS CHASSIS, UNDER NOCIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BEMODIFIED OR ALTERED WITHOUT PERMISSIONFROM THE LG CORPORATION. ALL COMPONENTSSHOULD BE REPLACED ONLY WITH TYPES IDENTICAL

COMPONENTS ARE SHADED ON THE SCHEMATICFOR EASY IDENTIFICATION.THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFERFROM THE ACTUAL CIRCUIT USED. THIS WAY,IMPLEMENTATION OF THE LATEST SAFETY ANDPERFORMANCE IMPROVEMENT CHANGES INTO

S S O S C

NOTE :

1. Shaded( ) parts are critical for safety.Replace only with specified part number.

2. Voltages are DC-measured with a digital voltmeterduring Play mode.

12


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3-51 3-52

SHOULD BE REPLACED ONLY WITH TYPES IDENTICALTO THOSE IN THE ORIGINAL CIRCUIT. SPECIAL

THE SET IS NOT DELAYED UNTIL THE NEW SERVICELITERATURE IS PRINTED.

A

1

2

3

4

5

6

7

8

9

10

11

B C D E F G H I J K L M N O P Q R S T

CAUTION: Danger if fuse is incorrectly replaced.

Replace only with the type identical to fuse ratingand(or) model name described in main label.

WarningParts that are shaded are critical withrespect to risk of fire or electrical shock.

SMEBY32630704 Rev 2

2011.01

2. MICOM CIRCUIT DIAGRAM

12


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3-53 3-54

A

1

2

3

4

5

6

7

8

9

10

11


µ-COMEBY60990001(#1) Rev 7.2

2011.01.25

3. PWM CIRCUIT DIAGRAM

12


74/93

3-55 3-56

A

1

2

3

4

5

6

7

8

9

10

11


PWEBY60990001(#2) Rev

2011.01

4. AMP CIRCUIT DIAGRAM

12


75/93

3-57 3-58

A

1

2

3

4

5

6

7

8

9

10

11


AMPEBY60990001(#3) Rev 7.2

2011.01.25

5. DSP CIRCUIT DIAGRAM

12


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3-59 3-60

A

1

2

3

4

5

6

7

8

9

10

11


DEBY60990001(#4) Rev 7

2011.01

6. RF SERVO CIRCUIT DIAGRAM

12


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3-61 3-62

A

1

2

3

4

5

6

7

8

9

10

11


RF SERVOEBY60990001(#5) Rev 7.2

2011.01.25

7. ADC CIRCUIT DIAGRAM

12


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3-63 3-64

A

1

2

3

4

5

6

7

8

9

10

11


AEBY60990001(#6) Rev 7

2011.01

8. BEAT BOX CIRCUIT DIAGRAM

12


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3-65 3-66

A

1

2

3

4

5

6

7

8

9

10

11


BEAT BOXEBY60990001(#7) Rev 7.2

2011.01.25

9. VFD CIRCUIT DIAGRAM

12


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3-67 3-68

A

1

2

3

4

5

6

7

8

9

10

11


VEBY61172601 Rev 2

2011.01

10. VOLUME CIRCUIT DIAGRAM

12


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3-69 3-70

A

1

2

3

4

5

6

7

8

9

10

11


VOLUMEEBY61172701 Rev 2.1

2011.01.25

11. USB CIRCUIT DIAGRAM

12


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3-71 3-72

A

1

2

3

4

5

6

7

8

9

10

11


UEBY61172801 Rev 2

2011.01

12. IPOD CIRCUIT DIAGRAM

12


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3-73 3-74

A

1

2

3

4

5

6

7

8

9

10

11


IPODEBY60990101 Rev 3.2

2010.11.09

13. MIC CIRCUIT DIAGRAM (OPTIONAL PART)

12


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3-75 3-76

A

1

2

3

4

5

6

7

8

9

10

11


MEBY60990701 Rev 3

2010.11

CIRCUIT VOLTAGE CHART1. HOW TO CHECK THE VOLTAGE

No.Location /

DescriptionSupply Voltage

Pin No.Source Spec / Rating Measured voltage

8 IC701

TAS5631

PVDD_X 48V 25~52.5V 47.7V

GVDD_X 12V 10.8~13.2V 11.91V

VDD 12V 10.8~13.2V 11.91V

IC502

Turn the SMPS board over with cable connectedand check the voltage.


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2. MAJOR ICs

3-77 3-78

No.Location /

DescriptionSupply Voltage

Pin No.Source Spec / Rating Measured voltage

1 IC501

MLC9800

13,47,94-VDD12 1.2V 1.08~1.32V 1.18V

30,51,84,113-IOVDD33

3.3V 3.0~3.6V 3.26V

120-PLL1VDD12 1.2V 1.08~1.32V 1.18V

124-PLL2VDD12 1.2V 1.08~1.32V 1.18V

122-PLL3VDD12 1.2V 1.08~1.32V 1.18V

115-USBVDD33 3.3V 3.0~3.6V 3.26V

14,48,95-VSS12 3.3V 3.0~3.6V 3.26V

3,52,85,109,114-

IOVSS33

1 .2V 1.08~1.32V 1.18V

119-PLL1VSS12 3.3V 3.0~3.6V 3.26V

123-PLL2VSS12 1.2V 1.08~1.32V 1.18V

121-PLL3VSS12 1.2V 1.08~1.32V 1.18V

3-AVSS33 3.3V 3.0~3.6V 3.26V

118- USBVSS33 3.3V 3.0~3.6V 3.26V

2 IC101

LC87F085NC8AVDD1,VDD2,VDD3,VDD4

3.3V 2.8~5.5V 3.37V

3 IC100

S-24CS16 VCC 3.3V 2.7~5.5V 3.37V

4 IC602

PS9850

VDD_IO 3.3V 2.97~3.63V 3.31V

VDD_CORE 1.2V 1.08~1.32V 1.25V

VDD_VIN1 3.3V 2.20~3.30V 3.30V

VDD_VIN2 3.3V 2.20~3.30V 3.30V

VDD_A 1.2V 1.08~1.32 1.25V

5

IC603

AK5358

VA 5V 6.0V MAX 5.11V

VD 3.3V 4.6V MAX 3.31V

6 IC605

S4308 VCC 12V 4.5~12V 11.25V

7 IC604

DRV603 VDD 5V 3~5.5V 5.1V

9 IC502

EM638165TS-6G VDD,VDDQ 3.3V 3.0~3.6V 3.27V

10 IC503

M25L1605D2I-12G VDD 3.3V 4.6V MAX 3.27V

11 IC507

TC74VHC244FT VCC 3.3V 2.0~5.5V 3.27V

12 IC506

CP Chip VCC 3.3V 7.0V MAX 3.27V

13 IC504

USB2512A VDD33 3.3V 3.0~3.6V 3.26V

14 IC505

278R33 VOUT 3.3V - 3.28V

15 IC407

BU9543KV

VDD 3.3V 2.7~3.6V 3.27V

VCORE 1.5V 1.4~1.65V 1.58V

16 IC408

S3053 VCC1, VCC2 5V 4.3~13.2V 5.10V

17 IC406

S8082 SVCC, PVCC 5V 4.3~13.2V 5.10V

18 IC202

CS5346

VA 5V 4.75~5.25V 5.11V

VD 3.3V 3.13~3.47V 3.27V

VLS 3.3V 3.13~3.47V 3.27V

VLC 3.3V 3.13~3.47V 3.27V

19 IC203

LM39102D VOUT 5V - 5.12V

20 IC201

NJM2794RB2 VCC 12V 4.3~13V 11.93V

21 IC204

LM39102D VOUT 5V - 5.13V

22 IC801

FS-503B

VDDK 1.2V 1.4V MAX 1.19V

VDDE 3.3V 4.0V MAX 3.27V

23 IC803

M25L1605D2I-12G VDD 3.3V 4.6V MAX 3.27V

24 IC806

TC74VHC244FT VCC 3.3V 2.0~5.5V 3.27V

25 IC807

M25L1605D2I-12G VDD 3.3V 4.6V MAX 3.27V

26 IC807

TC74VHC244FT VCC 5V 2.0~5.5V 5.12V

27 IC807

KIA1112F VOUT 1.2V - 1.19V

28

IC301

BU2090 VDD 3.3V 7.0V MAX 3.66V

29 IC302

BU2090 VDD 3.3V 7.0V MAX 3.66V

30 IC3U01

LM3912D VOUT 5V - 5.11V


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PRINTED CIRCUIT BOARD DIAGRAMS

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


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3-81 3-82

MAIN P.C.BOARD(BOTTOM VIEW)


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3-83 3-84

2. SMPS P.C.BOARD

NOTE) WarningParts that are critical with respect to riskof fire or electrical shock.


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3-85 3-86

3. VFD P.C.BOARD(BOTTOM VIEW)


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3-87 3-88

EAX64004201 Rev 2.3

4. VOLUME P.C.BOARD


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5. USB P.C.BOARD(TOP VIEW) (BOTTOM VIEW)


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7. MIC P.C.BOARD (OPTIONAL PART)

6. IPOD P.C.BOARD(TOP VIEW) (BOTTOM VIEW)

MEMO MEMO


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Mcd606-A0p.jbrallk Lgeaz Afn75496350 Ev

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