LG LAN9700R Service manual

MODEL : LAN9700R

MODEL : LAN9700RSERVICE MANUAL

P/NO : AFN35097846 SEPTEMBER, 2007

CAUTION

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

CLOSE

In Dash Navi & Infotainment System with Bluetooth

SERVICE MANUAL

Website http://biz.lgservice.com

Internal Use Only

FLIP TILT

CLOSE

MENU

WIDE

NAVI

VOL

SRC

R

EJECT

EQRDSBANDRSE

TA/ A F

LGE Internal Use Only

CONTENTS

SECTION 1 . . . SUMMARY

SECTION 2 . . . CABINET & MAIN CHASSIS

SECTION 3 . . . ELECTRICAL

SECTION 4 . . . CPD-03 DVD/CD CAR MODULE PART

SECTION 5 . . . REPLACEMENT PARTS LIST

1-2

Only for training and service purposes

LGE Internal Use Only

SECTION 1

SUMMARY

CONTENTS

ESD PRECAUTIONS.................................................................................................................. 1-3

SPECIFICATIONS ....................................................................................................................... 1-4

DVD FIRMWARE UPDATE GUIDE........................................................................................ 1-5

SOFTWARE REPLACE METHOD ......................................................................................... 1-6

LOCATION OF CUSTOMER CONTROLS .......................................................................... 1-8

1-3

LGE Internal Use Only

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.

1-4

Only for training and service purposes

LGE Internal Use Only

SPECIFICATIONS

• GENERAL

Output Power 50W x 4CH (Max.) Power Source DC 12V Speaker impedance 4 Ω Ground System Negative Dimensions (W x H x D) 400 x 280 x 55 mm (Main unit) Net Weight 2.28 kg (Main unit)

• DISPLAY

LCD 7 inch TFT LCD Resolution 480 X 234 Back Light LED type

• CD/DVD/VCD SELECTION

Frequency Response 20 Hz-20 kHz S/N Ratio 95 dB Distortion 0.1 % Channel Separation (1kHz) 70 dB

• RADIO SELECTION FM

Frequency Range 87.5-107.9 or 87.5-108 MHz S/N Ratio 55 dB Distortion 10. % Usable Sensitivity 12 dBµV

AM (MW)

Frequency Range 520-1720 or 522-1620 kHz S/N Ratio 45 dB Distortion 1.0 % Usable Sensitivity 32 dBµV

• NAVIGATION SELECTION

CPU i.Mx31L OS WinCE Core 5.0 SDRAM 64 MB Memory (Map) 4 GB SD Card Memory (OS) 64 MB NAND Flash GPS sirf3 Map Navteq User Interface Touch screen

1-5

DVD FIRMWARE UPDATE GUIDE

LGE Internal Use Only

Step 1 : Change into DVD source

- Power on then press open button to open LCD monitor.

- Touch agree button

- LAN9700R set shows tuner screen.

- Change into DVD source by pressing a SRC key or select DVD source in Source screen.

- We can enter source screen by touch source button at left & upper corner.

Step 2 : Insert DVD F/W Disc

- Insert a DVD F/W Update Disc

- Press an enter key of front panel after DVD F/W Disc popup shows

Step 3 : DVD F/W updating

- DVD F/W update begins (Reading step --> Erasing step --> Writing step

--> Verifying step)

- DONOT STOP or POWER OFF during F/W updating.

Step 4 : Remove DVD F/W disc

- If the verifying step is finished then display screen is changing and it shows a disc reading popup and DVD F/W disc popup again.

- eject the disc by pressing a eject button.

- Set power off

Step 5 : Additional Info

- If you see noises such as horizontal lines on

screen then take below procedure

step A) Power on and change into DVD source

and remove disc.

step B) Press pause button of remote controller

for 10 sec. step C) NTSC or PAL popup shows. step D) Repeat step B), step C) until NTSC/PAL

popup you want shows step E) We recommend NTSC mode. step F) Set power off

Agree screen

Source screen

Tuner screen

Reading step

Writing step

Verifying step

Erasing step

DVD F/W disc popup Enter key

1-6

SOFTWARE REPLACE METHOD

Only for training and service purposes

LGE Internal Use Only

1. After booting the unit without the Navi SD card, insert the Update SD card.

2. Enter the setup screen and press the Enter key on the remote controller for a long time. (About 5~8 seconds)

3. Update Program will be displayed on the screen.

1. After booting the unit without the Navi SD card and entering the setup screen, press the Arrow key on the right side of the front panel for more than 5 seconds. (Press and wait for 5 seconds after switching to up direction) Or press the Enter key on the remote controller for a long time.

2. Windows Explorer will be displayed.

3. Insert the Update SD card.

4. After selecting my device / SD memory, run Hobbiton.

1. Run the Update Program.

2. Press the Application button.

3. When you see the Copy Completed (xxx files/xxx files) message, the Application SW update is completed. If you see the message saying xxx file(s) Missed, it means that some files are not copied. Reset the power and then repeat from step 1.

4. When it is completed, press the Exit button.

5. Remove the SD card and then reboot the unit.

1. Run the Update Program.

2. Press the Micom button.

3. The progress increases by 10%.

4. When the progress reaches 100%, Program Ok !!! message will be displayed and Micom update is completed.

5. If there are no files to update, message saying “File could not be opened !!!” will be displayed.

6. When the process is completed, press the Exit button.

7. Remove the SD card and then reboot the unit.

1. Run the Update Program.

2. Press the BT Handsfree button.

3. When “BT Firmware Upgrade Completed.” Is displayed, update is completed. (This is irrelevant from the displayed %. If the “BT Firmware Upgrade Completed.” message is displayed even when the displayed progress is not 100%, it is completed.)

1-7

LGE Internal Use Only

4. When the update fails, it will automatically retry the update again. When the process is not completed even when the progress is over 200%, update has failed. In this case, press the Exit button and then reset the unit to retry the update.

5. If update is not required, “BT Firmware Upgrade Unnecessary.” Message will be displayed. In this case press the Exit button or update other SW.

But, you cannot update the Kernel in this condition. You must reset the unit to update the Kernel.

6. If there is no BT firmware in the SD card, “No BT Files” message will be displayed.

7. When it is completed, press the Exit button.

8. Remove the SD card and then reboot the unit.

* Reference

- Update of BT firmware can take maximum of 10 minutes. If difference between the version of the existing firmware and the new version is small, the time to update is reduced. Generally, it requires about 5~6 minutes.

- The reason the Micom firmware update takes longer than the time to update other SW is because it requires more time to read the software to compare to the existing version.

- To update the BT firmware for other models, you must first disassemble the unit. But for LAN9700R, you can update the unit using only the SD card without having to disassemble the unit, this is a major improvement in work productivity.

1. Run the Update Program.

2. Press the Kernel NB0 button.

3. Wait until “Kernel NB0 Upgrade Completed” message is displayed.

4. After pressing the Exit button, remove the SD card and insert the original SD card in Navi to reboot the unit.

* Caution: If you turn off the power or press the Exit button while updating the Kernel, it may be

impossible to recover.

1. Run the Update Program.

2. Press the Update All button. It will be updated in the order of Application -> Micom -> BT -> Kernel.

3. After updating the BT firmware,

Notice: Kernel not completed.

Reset and then Upgrade Kernel When the above message is displayed, Kernel update is not completed yet.

In this case, reset the unit and update the Kernel.

4. When “ALL SW Upgrade Completed.” Is displayed, the update for all SW is completed. Press the Exit button and then remove the SD cards. Insert the Navi SD card and then reset the unit.

1-8

Only for training and service purposes

LGE Internal Use Only

LOCATION OF CUSTOMER CONTROLS

HEAD UNIT FRONT

1. FLIP

Turn the LCD panel horizontally temporarily when the LCD panel is upright.

2. TILT

Adjust the monitor angle.

3. Display window

4. OPEN/CLOSE

Open (or Close) the monitor.

5. DIMMER SENSOR

6. VOL (Volume knob)

• Adjust the volume.

• Power on (Press it.)

• Power off (Press a long time.)

• Mute (Press a short time.)

7. SRC (Source)

Change the sources.

8. Remote sensor

9. RSE

(Rear Seat Entertainment)

10. BAND

• Select the band.

11. RDS

• Select the TA on/off.(Press a short time.)

• Select the AF on/off.(Press a long time.)

12. EQ

Select various equalizer curves.

13. EJECT

Eject a disc from the unit.

14. Disc slot

15. PHONE ( )

Select the bluetooth mode.

16. Arrow keys (up/down/left/right)

• Select the folders.

• Select the menus.

• Skip (Push a short time.)

• Seek (Push a short time.)

• Enter

17.

Detatches the control panel.

12 3 4 5

FLIP TILT OPEN

VOL

SRC

EJECT

R

TA/AF

EQRDSBANDRSE

6789101112 13 1514 16

17

1-9

LGE Internal Use Only

HEAD UNIT MONITOR

18. LCD

19. WIDE

Changes the screen mode.

20. NAVI

Moves to the map screen.

21. MENU

Moves to the navigation menu.

FLIP TILT CLOSE

WIDE

NAVI

MENU

1918 20 21

1-10

Only for training and service purposes

LGE Internal Use Only

REMOTE CONTROL

1. POWER

Switches the unit ON/OFF.

SOURCE

Selects a source.

RSE (Rear Seat Entertainment)

2. SCAN

• Backward (Forward) search playback.

• Tunes manually radio station.

SKIP

• Moves to next (previous) chapter, track or file.

• Returns to the beginning of the current chapter, track or file.

• Tunes automatically radio station.

PAUSE PLAY STOP

3. SEARCH

Select chapter or title.

4. / / / (up/down/left/right)

Select an item in the menu.

ENTER

Confirms menu selection.

5. 0-9 number buttons

• Selects numbered items in the menu.

• Selects a stored radio station frequency(1-6).

REPEAT

• Repeat chapter, track, title or file.

SHUFFLE

• Plays tracks or files in random order.

SCAN

• Plays the first 10 seconds of all track.

AUDIO

• Select audio language.

SUBTITLE

• Select audio subtitle language.

ANGLE

• Select a DVD camera angle if available.

6. BAND

Select FM and MW(AM) bands.

7. DISC MENU

Accesses the menu on a DVD disc.

8. RETURN

Displays the disc menu with PBC.

9. VOLUME

Adjust the volume level.

10. MUTE

Mute the volume.

1

2

6

3

7

4

8

5

9

10

VCDDVD

CD/MP3/WMA

CD

DVD DivX

DVD

1-11

LGE Internal Use Only

CONNECTING THE SYSTEM

B8

B7

B6

B5

A8

A7

A6

A5

A4

B4

B3

B2

B1

* Connecting the system

Power cord

Vehicle connector

A5

A7

A4

A6

A8

Yellow

TO BATTERY (+)- To the car battery, continuos +12 V DC.

Blue

POWER ANTENNA- To the power antenna

Orange

DIMMER-This lead is for the dimmer line connection.

Red

TO IGNITION-To the terminal from which the power is supplied when the ignition switch is set to ACC.

Black

GROUND (-) - To the car body.

Blue/White

REMOTE ON-To the amplifier remote on.

Brown

HAND BREAK- Be sure to wire the hand break (parking break) for safety and preventing accidents.

: Violet : Rear Right +

: Violet/ Black Stripe : Rear Right -

: Gray : Front Right +

: Gray / Black Stripe : Front Right -

Pink

REVERSE GEAR - When connecting the rear view camera, use

the reverse lead. Use a Reverse Extension if needed.

Speaker connector

B1

B2

: White : Front Left +

: White/Black Stripe : Front Left -

: Green : Rear Left +

: Green/ Black Stripe : Rear Left -

B5

B3

B4

B7

B6

B8

1-12

Only for training and service purposes

LGE Internal Use Only

CONNECTING THE SYSTEM

* Connecting to serarately sold auxiliart device

To VIDEO IN

To AU D IO IN

To VIDEO IN

To A UD I O O UT

To VIDEO OUT

To A UD I O OUT

To AUDIO OUT

AUX V (AUX Video)

AUX-R (AUX Right)

AUX-L (AUX Left)

CAM V (Camera Video)

RSE R (Rear Seat Entertainment Right)

RSE L (Rear Seat Entertainment Left)

RSE V (Rear Seat Entertainment Video)

RR (Rear Right)

RL (Rear Left)

FR (Front Right) FL (Front Left)

To VIDEO OUT

To AUDIO OUT

To VIDEO OUT

To AUDIO IN

To VIDEO IN

To AUDIO IN

Auxiliart Device (CAR TV, etc)

Rear view camera (Sold seperately)

Monitor for rear seat (Sold seperately)

Amplifier (Receiver)

(Sold seperately)

To MIC IN

Microphone

2-1

LGE Internal Use Only

SECTION 2

CABINET & MAIN CHASSIS

CONTENTS

EXPLODED VIEWS ....................................................................................................................2-2

1. CABINET AND MAIN FRAME SECTION ................................................................................2-3

2. ACCESSORY SECTION ...........................................................................................................2-5

LGE Internal Use Only

2-3 2-4

EXPLODED VIEWS

1. CABINET AND MAIN FRAME SECTION

A41 is consisted of FRONT KEY + SEG LCD Assembly. Therefore, 2EA's PCB Assembly is supplied if request purchase by A41's P/No.

266

451

462

A41

254

259

454

267

A48

268

260

450

461

272

255

451

256

461

452

CABLE40

A02

460

A01

451

A00

452

450

290

450

451

290

285

A47

452

450

451

A49

286

455

288

452

287

452

455

289

250

279

459

461

A53

A54

253

252

CABLE20

251

A41

A40

461

275

452

273

270

452

A42

A55

452

A46

A43

Only for training and service purposes

LGE Internal Use Only

2-5 2-6

LOC.No.

DESCRIP

TION

Manual Assembly

801 808 818 831

Remote Control Battery Lever Microphone

Power cord

835 837 839 840

Reverse Extension Code

RCA and microphone connector

Brackets

Metal sheet

842 843 845 846

Trim ring Installation sleeve Protective Case

852 900 A60

Remote Control

* OPTIONAL PART

GPS AntennaRound Head Screw

LOC.No.

DESCRIP

TION

LOC.No.

DESCRIP

TION

LOC.No.

DESCRIP

TION

2. ACCESSORY SECTION

LAN9700R

ENGLISH

In Dash Navi & Infotainment System with Bluetooth

Read the manual carefully before using the unit.

LGE Internal Use Only

3-1

SECTION 3

ELECTRICAL

CONTENTS

ELECTRICAL TROUBLESHOOTING GUIDE.................3-2

1. NO RESPONSE WHEN POWER IS

TURNED ON ............................................................3-2

2. DISC IN/OUT DYSFUNCTION.................................3-3

3. NO RESPONSE ON LCD SCREEN ........................3-4

4. TILT MECHA OPEN/CLOSE DYSFUNCTION .........3-5

5. NO SOUND ..............................................................3-6

6. NO GPS ...................................................................3-7

BLOCK DIAGRAMS ........................................................3-8

1. OVERALL BLOCK DIAGRAM[WITH I/F] .................3-8

2. BLOCK DIAGRAM-[H/W] .......................................3-10

3. BLOCK DIAGRAM-[S/W] .......................................3-12

4. MAIN PCB BLOCK DIAGRAM...............................3-14

5. MAIN IN/OUT BLOCK DIAGRAM ..........................3-16

6. MAIN POWER BLOCK DIAGRAM.........................3-18

7. TFT LCD BLOCK DIAGRAM..................................3-20

8. TFT LCD POWER BLOCK DIAGRAM...................3-22

9. GPS BLOCK DIAGRAM.........................................3-24

10. GPS POWER BLOCK DIAGRAM ........................3-26

CIRCUIT DIAGRAMS ....................................................3-28

1. MAIN_CPU CIRCUIT DIAGRAM ...........................3-28

2. MAIN_MEMORY, ETC. CIRCUIT DIAGRAM .........3-30

3. MAIN_BT, DVD, USB, ETC. CIRCUIT DIAGRAM .3-32

4. MAIN_AUDIO MICOM CIRCUIT DIAGRAM ..........3-34

5. MAIN_DIRAMA, TUNER CIRCUIT DIAGRAM.......3-36

6. MAIN_RAC, LINE DRIVER CIRCUIT DIAGRAM...3-38

7. MAIN_POWER CIRCUIT DIAGRAM .....................3-40

8. FRONT KEY_KEY FRONT CIRCUIT DIAGRAM...3-42

9. TFT LCD_VP78 LCD CIRCUIT DIAGRAM............3-44

10. TFT LCD_POWER, TSC2003, BLU, CONNECTOR

CIRCUIT DIAGRAM .............................................3-46

11. SEG LCD_SEG LCD CIRCUIT DIAGRAM ..........3-48

12. GPS_GPS CIRCUIT DIAGRAM...........................3-50

•

WAVEFORMS..........................................................3-52

•

CIRCUIT VOLTAGE CHART ...................................3-58

PRINTED CIRCUIT DIAGRAMS ...................................3-62

1. MAIN P.C. BOARD (TOP VIEW) ............................3-62

2. MAIN P.C. BOARD (BOTTOM VIEW) ....................3-64

3. FRONT KEY & SEG LCD P.C. BOARD

(TOP VIEW)............................................................3-66

4. FRONT KEY & SEG LCD P.C. BOARD

(BOTTOM VIEW)....................................................3-66

5. GPS P.C. BOARD (TOP VIEW) .............................3-66

6. GPS P.C. BOARD (BOTTOM VIEW) .....................3-66

7. TFT LCD P.C. BOARD (TOP VIEW) ......................3-68

8. TFT LCD P.C. BOARD (BOTTOM VIEW) ..............3-69

Only for training and service purposes

LGE Internal Use Only

3-2

ELECTRICAL TROUBLESHOOTING GUIDE

1. No response when POWER is turned ON

YES

YESYES

NO

Connect power connector

NO

Is the front panel installed?

YES

Is the front FPC connection and condition (disconnection) abnormal?

NO

Start from near IC100 and IC102. (Check and refer to voltage wave form diagram.)

NO

Replace fuse.

NO NO

Is it operating normally after the installation?

NO

Connect FPC. Replace if disconnected

No response when power is turned on.

Is the fuse normal?

Is the power cable normally connected to CN103?

Is the LED turned on?

YES

Do you hear the sound when setting the Beep ON?

Check whether the TILT MECHA is normal.

LGE Internal Use Only

3-3

2. Disc in/out dysfunction

YES

NO

CN401 2, 5~11, 6~19, 31

NO

37, 41, 49

NO

Recheck after connecting

NO

Check the peripheral circuit of CN403 and whether other keys are pressed.

NO

Replace deck

When operating the Eject key, do you hear the beep sound?

Disc in/out dysfunction

Can you see the LG logo on the RSE screen?

Is the power connected to CN401?

Is CN604 FFC normally connected?

Does the disc eject pop up?

Check whether there is anything wrong with the deck.

Only for training and service purposes

LGE Internal Use Only

3-4

3. No response on LCD screen

YES

YES YES YES

YES

NO NO

Replace IC702

NO

YES

NO

NO NO

Replace IC501

NO

Check whether installed and reinstall if necessary

NO

Replace IC501

No response on LCD (touch) screen

Was Front Panel installed?

Is the wave form of M2-12 normal?

Is the 65 pin of IC501 high (5V)?

When you touch the screen, do you hear the beep sound?

Is the wave form of M2-10 normal?

YES

Is the wave form of M4-7 and M4-8 normal?

Is the wave form of M2-5, 6, 7, 8 and 11 normal?

Is there still no response after updating the SW?

IC701

YES

Replace IC200 or main board

LGE Internal Use Only

3-5

4. Tilt MECHA open/close dysfunction

YES

YES YES YES

YES

NO NO

Check the connection between the sub LCD FFC and front FPC.

NO

YES

NO

Replace IC501

NO

Recheck after normal connection

NO

Replace SW

Tilt MECHA open/close dysfunction

Is the connection between CN402 and FPC normal?

Is it 5V when the CN402 (No.6 and 8) pin is open and 0V when closed?

Is the tilt MECHA SW operating normally?

When you press the button, do you hear the beep sound?

When entering a different key on the front panel, do you hear the beep sound?

YES

Is the output of 59, 60 and 61 pin of IC501 normal?

Replace tilt MECHA

Only for training and service purposes

LGE Internal Use Only

3-6

5. No sound

YES

NO NO

Replace power AMP (IC602)

Check IC601->IC602 connection DAC output pattern

NO

YES

NO

Replace TR (Q601)

NO

Check speaker output connection

No sound

Is the audio (IC601) input power V3.3_D, V3.3_A normal?

Check LDO power

Is there audio DSP (IC601) output?

Is there power AMP (IC602) output?

Is there power AMP input?

Is the Q601 output (DIRANA_1.8V) normal?

NO

Replace XTAL (X601)

Is the XTAL (X601) wave form normal?

YES

Replace audio DSP (IC602)

3-7

LGE Internal Use Only

6. No GPS

YES

NO

Check CN102

NO

Check Main B/D power supply (JT483)

NO

Check VCXO output (X100 PIN3)

NO

Check uart path

Is data transferred from module? (CN102 PIN4 or TP Tx)

Does ACQ_CLK signal appear? (TP ACQ_CLK)

Is power supplied to MODULE? (CN102 PIN 1 or TP VDD)

NO GPS

CN102 connection?

REPLACE GPS MODULE

3-8 3-9

BLOCK DIAGRAMS

1. OVERALL BLOCK DIAGRAM[WITH I/F]

LGE Internal Use Only

GPS Module

FM/AM ANT

CVBS, AUDIO(L/R)

AUX IN ( CVBS, AUDIO L/R)

REAR CAMERA

MIC

JAK401

ANT601

CN601

LAN9700R

UNIT

B+,ACC,GND

REMOTE ON

POWER ANT

REVERSE GEAR

HAND BREAK

DIMMER

F/L+ F/L-

CN103

F/R+ F/R-

R/L+ R/L-

AUDIO PRE-OUT ( F/L,F/R,R/L,R/R)

AUDIO PRE-OUT ( NON-FAD L/R)

R/R+ R/R-

3-10 3-11

2. BLOCK DIAGRAM-[H/W]

GPS

DVD

MODULE

MPU

AUDIO

MICOM

POWER

AMP

DiRANA

RDS TMC

BOOST AMP

NJM2792

BT

DDR SDRAM

64MB

[1V8]

I.MX31

[1V5, 1V8, 3V0]

[5V]

SAF6630H

[1V8, 3V3]

F1M22

[3V0] [1V8]

UART

ATAPI

I2S

I2S I2S

SPI

I2S

UART

IR

4X5

CCIR656

I2S

SPI

CCIR656

A/AUDIO

NAND FLASH

64MB

[1V8]

UART

I2S

TOUCH PANEL

7" TFT LCD

480X234

ANALOG / LED

Sub

LCD

Comtrol

LCD

Control

Touch

Control

CVBSX2

UART/ETH

F/L, F/R, R/L, R/R

REAR CAMERA(CVBS)

AUX VIDEO(CVBS)

ACC, H-BRAKE,

REAR GEAR

DEBUG

KEY

TILT MECHA

IR

PRE OUT

SPEAKER OUT

MIC IN

A/V

RSE OUT

VIDEO(CVBS)

AUDIO R/L

Only for training and service purposes

LGE Internal Use Only

3-12 3-13

3. BLOCK DIAGRAM-[S/W]

LGE Internal Use Only

Graphical User Interface

DVD/CD/

MP3/WMA

DVD

Function

& Comm

(SPI)

Tuner

GUI Application

Tuner/Setup

Function

Audio Micom

Comm. (UART)

AUX

Rear

Camera

Setup

System Manager

Popup

Program

Update

WIN32 APIs, COREDLL, ...

System

Logger

Bluetooth

GUI

Manager

SW

Debugging

TCP / IP / EWC

PPP

3D/Full

Navigation GUI

Route

Guidance

Map

Matching

Route

Planning

Navigation

menu GUI

3D/Full_Navi Main Module

Database

Application

(distination/POI)

Database

Manage

-ment

Audio

CODEC

DAL

Kernel

Library

OAL/

Bootloader

Display

Driver

GWES

Keypad

Driver

RemoconKeyLCD

IrDA

Driver

FileSystem

Manager

Touch

Screen

Touch Screen

NAND

Flash

File

Drivers

(FAT32...)

Hardware

SD

Card

I2S

Driver

I2S

UART

Driver

UART

Device

Manager

SPI

Driver

SPI

Ethernet

Driver

Ethernet

3-14 3-15

4. MAIN PCB BLOCK DIAGRAM

Only for training and service purposes

LGE Internal Use Only

LCD FRONT : 3EA LCD MAIN : 3EA

3-16 3-17

5. MAIN IN/OUT BLOCK DIAGRAM

LGE Internal Use Only

SUB-LCD

SENSOR

LCD

BOARD

COL 2, ROW 2

TOUCH

PANEL

POWER

LCD

CON

BUTTON

6EA

INTERRUPT

CCIR656

COL 3, ROW 3

GND

SPI

I2C

IRQ

POWER

5V0 9V 10V

VIDEO

I2C 1

KEY

MATRIX

SPI

DECK

POWER

1V2 3V3 5V0 8V0

POWER

3V0

DEBUG

JTAG UART Ethernet

MAIN

BOARD

GPS

UART

1. PRE OUT (F/R : L/R)

2. REAR OUT (AV 1)

3. MIC IN

4. AUX IN

5. CAMERA IN

1. BUP

2. ACC

3. DIMMER

4. REMOTE

5. POWER ANT

6. H.BRAKE

7. REVERSE GEAR

8. SPEAKER OUT (F/R : L/R)

COL 3, ROW 5

IR

FRONT

DETECT

3-18 3-19

6. MAIN POWER BLOCK DIAGRAM

Only for training and service purposes

LGE Internal Use Only

3-20 3-21

7. TFT LCD BLOCK DIAGRAM

LGE Internal Use Only

DIMMING

5V

Analog RGB

ETC

3.3V

2.5V

BLU(LED type)

LCD PANEL (INNOLUX :

AT070TN07 V.2)

5V

15V

VP78

-10V

9.0V

TOUCH

PANEL

3.0V

X+

X-

Y+

Y-

KEY LED

C2003

TS

CCIR656, CVBS*2

KEY

PENIRQ

IIC

Key

Matrix

5.0V

9.0V

MAIN

BOARD

FRONT LCD

SEG

FRONT LCD

Controller

PT6524

SPI

3-22 3-23

8. TFT LCD POWER BLOCK DIAGRAM

Only for training and service purposes

LGE Internal Use Only

9.0V

Main BD.

5.0V

SW

DC-DC

SW

SEG

BACKLIGHT

KEY LED

LCD

BACKLIGHT

LCD PANEL

VCOM/VGH/VGL

RGB AMP.

3.3V

3.0V

TFT LCD BD.

SEG DRIVER

IC

VP 78

2.5V

T/S

3-24 3-25

9. GPS BLOCK DIAGRAM

LGE Internal Use Only

MAIN

UART

TRANCEIVER

MAX3232EIPWR

RESET

TC1301B

GSC3f/LP-7979

32.768KHz XTAL FC-135

SAW FILTER

856561

24.5535MHz VCXO DSB321SD

ANTENNA

LNA

UPC8231TK

3-26 3-27

10. GPS POWER BLOCK DIAGRAM

Only for training and service purposes

LGE Internal Use Only

5V VDD

3V BUP

2.8V

1.5V

2.8V

LNA 2.8V

RTC 1.5V

RF 2.8V

BASE 2.8V

3-28 3-29

CIRCUIT DIAGRAMS

1. MAIN_CPU CIRCUIT DIAGRAM

1

4

5

6

9

10

2

7

8

3

WAVEFORM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

LGE Internal Use Only

3-30 3-31

2. MAIN_MEMORY, ETC. CIRCUIT DIAGRAM

15

19

14

16

17

18

22

23

13

21

20

11

12

WAVEFORM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

Only for training and service purposes

LGE Internal Use Only

3-32 3-33

3. MAIN_BT, DVD, USB, ETC. CIRCUIT DIAGRAM

24

25

26

28

27

31

29

30

WAVEFORM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

LGE Internal Use Only

43 3-35

4. MAIN_AUDIO MICOM CIRCUIT DIAGRAM

40

35

36

34

32

41

33

38

39

37

WAVEFORM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

Only for training and service purposes

LGE Internal Use Only

5. MAIN_DIRAMA, TUNER CIRCUIT DIAGRAM

48

46

47

45

44

49

42

43

WAVEFORM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

3-36 3-37

LGE Internal Use Only

6. MAIN_RAC, LINE DRIVER CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

3-38 3-39

Only for training and service purposes

LGE Internal Use Only

3-40 3-41

7. MAIN_POWER CIRCUIT DIAGRAM

54

52

53

50

51

WAVEFORM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

Only for training and service purposes

LGE Internal Use Only

3-42 3-43

8. FRONT KEY_KEY FRONT CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

LGE Internal Use Only

3-44 3-45

9. TFT LCD_VP78 LCD CIRCUIT DIAGRAM

55

WAVEFORM

56

57

60

58

59

A

1

2

3

4

5

6

7

8

9

10

11

12

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

Only for training and service purposes

LGE Internal Use Only

3-46 3-47

10. TFT LCD_POWER, TSC2003, BLU, CONNECTOR CIRCUIT DIAGRAM

WAVEFORM

61

62

63

64

A

1

2

3

4

5

6

7

8

9

10

11

12

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

LGE Internal Use Only

3-48 3-49

11. SEG LCD_SEG LCD CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

Only for training and service purposes

LGE Internal Use Only

3-50 3-51

WAVEFORM

66

69

70

67

68

65

A

1

2

3

4

5

6

7

8

9

10

11

12

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

12. GPS_GPS CIRCUIT DIAGRAM

LGE Internal Use Only

3-52 3-53

[1] [2] [3] [4] [5]

[6] [7] [8] [9] [10]

[11] [12] [13] [14] [15]

[16] [17] [18] [19] [20]

[21] [22] [23] [24] [25]

• WAVEFORMS

[ MAIN PART ] _ 1~54

Only for training and service purposes

LGE Internal Use Only

3-54 3-55

[26] [27] [28] [29] [30]

[31] [32] [33] [34] [35]

[36] [37] [38] [39] [40]

[41] [42] [43] [44] [45]

[50][46] [47] [48] [49]

LGE Internal Use Only

3-56 3-57

[53] [54] [55][51] [52]

[57] [58] [59][56]

[62] [63] [64]

[60]

[61]

[68] [69] [70][67]

[ TFT LCD PART ] _

55~64

[65]

[ GPS PART ] _ 65~70

CN102_Pin4(TX)

[66]

IC106_J4, K4

IC106_TA IC106_TB X100_Pin3 X101

Only for training and service purposes

LGE Internal Use Only

3-58 3-59

• CIRCUIT VOLTAGE CHART

MODE

PIN NO.

23 DATA[3]

24 DATA[4]

25 DATA[5]

26 DATA[6]

27 DATA[7]

28 NC

29 NC

30 KEY_COL_0

31 KEY_ROW_0

32 KEY_COL_1

33 KEY_ROW_1

34 KEY_COL_2

35 KEY_ROW_2

36 SEG_DI

37 SEG_CLK

38 SEG_CON

39 SEG_CE

40 LCD_INTR

41 LCD_BL_CON

42 DIM_SENS

43 GND

44 5V

45 5V

46 5V

47 GND

48 GND

49 10V

50 10V

CN401

1 GND

2 CSI_CLK

3 GND

4 CSI_D[8]

5 CSI_D[9]

6 CSI_D[10]

7 CSI_D[11]

8 CSI_D[12]

9 CSI_D[13]

10 CSI_D[14]

11 CSI_D[15]

12 GND

13 DISC_IN

14 DVD_A_MUTE

15 DVD_RESET

16 SPI_TXD

17 SPI_RXD

18 SPI_CLK

19 SPI_CE

20 GND

21 RSE_V_MUTE

22 GND

23 A_BIT_CLK

24 GND

25 A_DATA

26 A_MCLK

VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE

MODE

PIN NO.

MAIN

CN103

1 RL+

2 RR+

3 RL-

4 RR-

5 FL+

6 FR+

7 FL-

8 FR-

9 REVERSE

10 ACC

11 ANT_PWR

12 H_BRAKE

13 REMOTE_PWR

14 ILL

15 B+

16 GND

CN301

1DATA3

2 CMD

3VSS

4 VDD

5 CLK

6VSS

7DATA0

8DATA1

9DATA2

10 WP/CD

11 GND

12 DETECT

13 GND

CN302

1 TS_CLK

2 TS_IRQ

3TS_DATA

4LCD_SCL

5 LCD_SDA

6 LCD_RESET

7 GND

8 GND

9AUX_V

10 GND

11 CAM_V

12 GND

13 VSYNC

14 HSYNC

15 GND

16 V_CLK

17 GND

18 GND

19 LCD_POWER

20 DATA[0]

21 DATA[1]

22 DATA[2]

MODE

PIN NO.

27 A_LRCK

28 GND

29 CVBS

30 GND

31 1.2V

32 1.2V

33 1.2V

34 1.2V

35 GND

36 GND

37 3.3

38 5V_PU

39 5V_PU

40 5V

41 5V

42 5V

43 5V

44 GND

45 GND

46 GND

47 GND

48 GND

49 8V

50 8V

CN402

1 GND

2 GND

3 12V

4 12V

5 GND

6CLOSE_SW

7TILT_SW

8TILT_HOME

9LOAD_SEN

10 TILT_SEN

11 5V

12 TILT_CTR1

13 TILT_CTR2

14 TILT_CTR3

CN403

13V

2IR_REMOTE

3DISC_IN

4 KEY_ROW5

5 KEY_ROW4

6 KEY_ROW3

7 KEY_ROW2

8 KEY_ROW1

9KEY_COL5

10 KEY_COL4

11 K EY_COL3

12 8V

13 VOL_DOWN

14 VOL_UP

15 GND

MODE

PIN NO.

CN601

1 PREAMP_FL

2 PREAMP_FR

3 GND

4 PREAMP_RL

5 PREAMP_RR

6 GND

7 RSE_L

8 RSE_R

9 GND

10 AUX_L

11 AUX_R

12 GND

13 MIC_IN

14 GND

15 GND

16 CAM_V

17 GND

18 AUX_V

19 GND

20 RSE_V

JK401

1 CAL_RXD

2 CAL_TXD

35V

4 GND

5 GPS_TXD

6GPS_RXD

IC102

15

28

38

48

59

65

7 3.3

80

90

10 3.3

11 0

12 5

13 5

14 5

15 5

16 H/L

17 H/L

18 H/L

19 0

20 0

21 9

22 9

23 0

24 12

25 H/L

26 H/L

MODE

PIN NO.

MODE

PIN NO.

2 3.3

30

4 3.3

5 3.3

IC400

1NC

2NC

3RF

40

50

6NC

7NC

8 ANALOG

93

10 NC

11 NC

12 NC

13 0

14 NC

15 NC

16 1.8

17 NC

18 NC

19 0

20 H/L

21 NC

22 H/L

23 3

24 0

25 NC

26 H/L

27 NC

28 NC

29 H/L

30 H/L

31 NC

32 3

33 NC

34 0

35 H/L

36 H/L

37 H/L

38 H/L

39 H/L

40 H/L

41 NC

42 NC

43 NC

44 NC

45 NC

IC401

1 ANALOG

2 ANALOG

33

40

VOLTAGE

MODE

PIN NO.

50

60

70

83

IC402

16

26

3-6

46

5-6

6-6

7 H/L

8 H/L

9 H/L

10 H/L

11 H/L

12 H/L

13 H/L

14 H/L

15 0

16 3

IC403

1NC

2 H/L

30

4 H/L

53

IC404

1NC

2 H/L

30

4 H/L

53

IC405

10

2 H/L

3 H/L

4 H/L

5NC

6NC

7 H/L

8 H/L

9 H/L

10 0

11 H/L

12 H/L

13 H/L

14 NC

15 NC

16 H/L

17 H/L

18 H/L

19 0

20 3.3

VOLTAGE

MODE

PIN NO.

IC406

1NC

2 H/L

30

4 H/L

55

IC420

1NC

2H or L

30

4H or L

53

IC501

1 H/L

2 H/L

3 H/L

4 H/L

5 H/L

6NC

7 H/L

8NC

9NC

10 5

11 5.6

12 5or0

13 H/L

14 H/L

15 H/L

16 NC

17 NC

18 NC

19 NC

20 0

21 NC

22 5or0

23 5or0

24 5

25 5

26 5or0

27 5or0

28 5

29 5

30 5

31 NC

32 5

33 5

34 5

35 5

36 5

37 5

38 5

39 NC

40 5or0

41 5or0

42 H/L

VOLTAGE

MODE

PIN NO.

43 H/L

44 H/L

45 NC

46 H/L

47 5

48 H/L

49 H/L

50 5

51 0

52 5.6

53 5.6

54 5or0

55 NC

56 NC

57 5or0

58 5or0

59 5or0

60 5or0

61 5or0

62 5

63 5or0

64 5or0

65 5

66 5

67 5or0

68 5or0

69 5or0

70 H/L

71 H/L

72 5or0

73 5or0

74 5or0

75 5or0

76 H/L

77 H/L

78 5or0

79 5or0

80 5or0

81 H/L

82 5

83 NC

84 NC

85 NC

86 NC

87 0

88 5

89 H/L

90 5

91 H/L

92 H/L

93 0

94 H/L

95 H/L

96 5

97 0

VOLTAGE

MODE

PIN NO.

98 0

99 5

100 5

IC502

1NC

2 H/L

30

4 H/L

5 3.3

IC503

1 H/L

25

30

4NC

5NC

6NC

7 H/L

8NC

IC504

1NC

2 H/L

30

4 H/L

55

IC505

1NC

2 H/L

30

4 H/L

53

IC506

13

2 H/L

30

4 H/L

53

IC507

1 H/L

2 3.3

30

4 H/L

5 3.3

IC508

1NC

2 H/L

30

4 H/L

53

IC509

1 3.3

2 H/L

30

4 H/L

5 3.3

VOLTAGE

MODE

PIN NO.

IC510

1 3.3

2 H/L

30

4 H/L

5 3.3

IC511

1 3.3

2 H/L

30

4 H/L

5 3.3

IC512

1 H/L

2 H/L

30

4 H/L

55

IC514

15

2 H/L

30

4 H/L

55

IC515

1NC

2 H/L

30

4 H/L

53

IC601

1 1.8

2 1.62

3 1.62

4 1.62

5 1.62

6 1.62

7 1.62

8 3.3

9 3.3

10 0

11 1.62

12 1.62

13 1.62

14 1.62

15 1.62

16 1.62

17 1.62

18 1.62

19 1.62

20 1.8

21 0

22 0

23 0

24 NC

27 H/L

28 NC

IC205

13

23

30

43

53

IC207

13

23

30

43

53

IC305

10

2 H/L

3 H/L

4 H/L

5 H/L

6 H/L

7 H/L

8 H/L

9 H/L

10 0

11 H/L

12 H/L

13 H/L

14 H/L

15 H/L

16 H/L

17 H/L

18 H/L

19 0

20 3.3

IC306

1 3.3

2 H/L

30

4 H/L

5 3.3

IC307

1 3.3

2 H/L

30

4 H/L

5 3.3

IC308

1 3.3

2 H/L

30

4 H/L

5 3.3

IC309

1 3.3

LGE Internal Use Only

3-60 3-61

MODE

PIN NO.

80 0

81 0

82 0

83 0

84 0

85 0

86 0

87 3.3

88 NC

89 NC

90 H/L

91 NC

92 NC

93 NC

94 1.8

95 0

96 NC

97 NC

98 NC

99 NC

100 H/L

101 H/L

102 NC

103 NC

104 0

105 3.3

106 NC

107 NC

108 NC

109 NC

110 H/L

111 H /L

112 N C

113 N C

114 N C

115 N C

116 N C

117 N C

118 N C

119 N C

120 NC

121 0

122 1.8

123 H/L

124 H/L

125 1.8

126 0

127 H/L

128 H/L

129 0

130 0

131 CLK

132 CLK

133 1.8

134 NC

VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE VOLTAGE

MODE

PIN NO.

25 0

26 0

27 0

28 H/L

29 H/L

30 1.26

31 H/L

32 1.8

33 3.3

34 1.64

35 0

36 1.64

37 3.3

38 1.55

39 1.55

40 3.3

41 0

42 3.3

43 1.55

44 1.55

45 1.62

46 1.62

47 3.3

48 NC

49 H/L

50 NC

51 H/L

52 H/L

53 H/L

54 1.8

55 0

56 NC

57 H/L

58 NC

59 NC

60 1.8

61 0

62 H/L

63 H/L

64 H/L

65 H/L

66 H/L

67 H/L

68 0

69 3.3

70 NC

71 NC

72 H/L

73 H/L

74 H/L

75 NC

76 NC

77 NC

78 NC

79 0

MODE

PIN NO.

135 3.2

136 1.47

137 1.47

138 0

139 3.3

140 2.95

141 0

142 1.26

143 1.48

144 1.48

IC602

10

20

3 9.3

4 H/L

5 9.3

612

7 2.8

80

9 2.8

10 8.3

11 2.95

12 2.95

13 0

14 2.95

15 2.95

16 3

17 2.8

18 0

19 2.8

20 12

21 9.3

22 H/L

23 9.3

24 0

25 NC

IC603

10

2 0.64

3 7.1

4 2.84

5 2.84

6 4.26

7 2.84

8 2.84

9 7.1

10 0.64

11 0

12 7.8

13 7.1

14 2.84

15 2.84

16 8.5

17 2.84

18 2.84

MODE

PIN NO.

19 7.1

20 7.8

IC604

10

2 0.64

3 7.1

4 2.84

5 2.84

6 4.26

7 2.84

8 2.84

9 7.1

10 0.64

11 0

12 7.8

13 7.1

14 NC

15 2.84

16 8.5

17 NC

18 2.84

19 7.1

20 7.8

IC606

15

2 1.99

3 1.19

40

5 2.8

60

70

85

TFT LCD

IC701

1NC

2NC

3 H/L

4 H/L

5 H/L

6 3.3

70

80

9 2.5

10 0

11 3.3

12 0

13 NC

14 NC

15 ANALOG

16 NC

17 0

18 0

19 3.3

20 NC

21 NC

MODE

PIN NO.

MODE

PIN NO.

77 H/L

78 NC

79 NC

80 H/L

81 NC

82 NC

83 1.2

84 NC

85 NC

86 3.3

87 0

88 0

89 3.3

90 ANALOG

91 3.3

92 0

93 ANALOG

94 ANALOG

95 3.3

96 0

97 H/L

98 NC

99 NC

100 NC

101 NC

102 NC

103 NC

104 NC

105 NC

106 0

107 2.5

108 NC

109 NC

110 N C

111 N C

112 N C

113 N C

114 N C

115 N C

116 0

117 3.3

118 N C

119 N C

120 NC

121 NC

122 NC

123 NC

124 NC

125 NC

126 NC

127 NC

128 NC

SEG LCD

IC851

1 H/M1/M2/L

VOLTAGE

MODE

PIN NO.

2 H/M1/M2/L

3 H/M1/M2/L

4 H/M1/M2/L

5 H/M1/M2/L

6 H/M1/M2/L

7 H/M1/M2/L

8 H/M1/M2/L

9 H/M1/M2/L

10 H/M1/M2/L

11 H/M1/M2/L

12 H/M1/M2/L

13 H/M1/M2/L

14 H/M1/M2/L

15 H/M1/M2/L

16 H/M1/M2/L

17 H/M1/M2/L

18 H/M1/M2/L

19 H/M1/M2/L

20 H/M1/M2/L

21 H/M1/M2/L

22 H/M1/M2/L

23 H/M1/M2/L

24 H/M1/M2/L

25 H/M1/M2/L

26 H/M1/M2/L

27 H/M1/M2/L

28 H/M1/M2/L

29 H/M1/M2/L

30 H/M1/M2/L

31 H/M1/M2/L

32 H/M1/M2/L

33 H/M1/M2/L

34 H/M1/M2/L

35 H/M1/M2/L

36 H/M1/M2/L

37 H/M1/M2/L

38 H/M1/M2/L

39 H/M1/M2/L

40 H/M1/M2/L

41 H/M1/M2/L

42 H/M1/M2/L

43 H/M1/M2/L

44 H/M1/M2/L

45 H/M1/M2/L

46 H/M1/M2/L

47 H/M1/M2/L

48 H/M1/M2/L

49 NC

50 NC

51 NC

52 H/M1/M2/L

53 H/M1/M2/L

54 H/M1/M2/L

55 H/M1/M2/L

56 5(H)

VOLTAGE

MODE

PIN NO.

VOLTAGE

MODE

PIN NO.

C6 -

C7 H/L

C8 -

C9 -

C10 2.8V

D1 -

D2 -

D3 H/L

D4 2.8V

D5 GND

D6 GND

D7 -

D8 -

D9 -

D10 0V

E1 -

E2 -

E3 -

E4 2.8V

E7 -

E8 -

E9 -

E10 -

F1 -

F2 2.8V

F3 2.8V

F4 2.8V

F5 GND

F6 GND

F7 2.8V

F8 -

F9 -

F10 H/L

G1 H/L

G2 -

G3 -

G4 -

G5 -

G6 -

G7 -

G8 -

G9 -

G10 0V

H1 -

H2 -

H3 -

H4 -

H5 -

H6 0.8V

H7 -

H8 -

H9 -

H10 2.8V

J1 2.8V

J2 0V

VOLTAGE

MODE

PIN NO.

VOLTAGE

MODE

PIN NO.

P8 2.8V

P9 1.5V

P10 CLOCK

IC107 (TRANCEIVER)

1 7.5V

2 7.5V

35V

4 7.5V

50V

6 -6V

7 7.5V

80V

95V

10 0V

11 H/L

12 H/L

13 H/L

14 H/L

15 0V

16 5V

IC108 (LNA)

1 1V input

2 GND

3 2.8V

4 2.8V

5 GND

6 2.8V

22 ANALOG

23 NC

24 NC

25 0

26 0

27 3.3

28 NC

29 NC

30 0

31 0

32 0

33 0

34 1.7

35 NC

36 0

37 3.3

38 0

39 0

40 0

41 0

42 2.5

43 NC

44 H/L

45 H/L

46 H/L

47 H/L

48 H/L

49 H/L

50 H/L

51 H/L

52 H/L

53 H/L

54 H/L

55 3.3

56 0

57 NC

58 H/L

59 H/L

60 H/L

61 H/L

62 H/L

63 H/L

64 H/L

65 H/L

66 H/L

67 NC

68 NC

69 H/L

70 0

71 2.5

72 H/L

73 2.5

74 0

75 0

76 3.3

J3 -

J4 H/L

J5 H/L

J6 H/L

J7 H/L

J8 H/L

J9 H/L

J10 H/L

K1 H/L

K2 2.8V

K3 -

K4 H/L

K5 H/L

K6 H/L

K7 H/L

K8 H/L

K9 H/L

K10 H/L

L1 -

L2 2.8V

L3 2.8V

L4 GND

L5 GND

L6 GND

L7 GND

L8 GND

L9 GND

L10 CLOCK

M1 -

M2 2.8V

M3 2.8V

M4 2.8V

M5 2.8V

M6 2.8V

M7 2.8V

M8 2.8V

M9 2.8V

M10 2.8V

N1 0V

N2 GND

N3 GND

N4 GND

N5 GND

N6 GND

N7 GND

N8 GND

N9 GND

N10 GND

P1 H/L

P2 CLOCK

P3 -

P4 -

P5 GND

P6 RF SIGNAL

P7 GND

57 3.2(M1)

58 1.6(M2)

59 0(L)

60 ANALOG

61 H/L

62 H/L

63 H/L

64 H/L

GPS

CN102

1 Vcc(5V)

2 GND

3 Tx (H/L)

4Rx (H/L)

IC100 (LDO)

1 2.8V

2 2.8V

3 GND

4 1.2V

55V

6 2.8V

75V

85V

IC104 (LDO)

15V

2 GND

35V

4-

5 1.5V

IC106 (SiRF)

A1 GND

A2 -

A3 H/L

A4 -

A5 H/L

A6 H/L

A7 -

A8 -

A9 -

A10 1.6V

B1 -

B2 -

B3 2.8V

B4 1.5V

B5 2.8V

B6 -

B7 H/L

B8 -

B9 -

B10 2.8V

C1 -

C2 2.8V

C3 -

C4 2.8V

C5 2.8V

Only for training and service purposes

LGE Internal Use Only

3-62 3-63

MAIN PRINTED CIRCUIT DIAGRAMS

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

LGE Internal Use Only

3-64 3-65

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

EAX38431201

Only for training and service purposes

LGE Internal Use Only

3-66 3-67

3. FRONT KEY & SEG LCD P.C. BOARD (TOP VIEW) 5. GPS P.C. BOARD (TOP VIEW)

6. GPS P.C. BOARD (BOTTOM VIEW)4. FRONT KEY & SEG LCD P.C. BOARD (BOTTOM VIEW)

LGE Internal Use Only

3-68 3-69

7. TFT LCD P.C. BOARD (TOP VIEW) 8. TFT LCD P.C. BOARD (BOTTOM VIEW)

4-1

LGE Internal Use Only

SECTION 4

DVD/CD CAR MODULE PART

CONTENTS

ELECTRICAL TROUBLESHOOTING GUIDE..................................................................................4-2

1. DISC LOADING .........................................................................................................................4-2

2. SPI COMMNICATOIN ................................................................................................................4-3

3. VIDEO OUTPUT ........................................................................................................................4-3

4. DISC READING .........................................................................................................................4-4

5. AUDIO OUTPUT ........................................................................................................................4-6

BLOCK DIAGRAM............................................................................................................................4-7

CIRCUIT DIAGRAMS .......................................................................................................................4-9

1. CONNECTOR & INTERFACE CIRCUIT DIAGRAM..................................................................4-9

2. DSP CIRCUIT DIAGRAM.........................................................................................................4-11

3. FRONTEND CIRCUIT DIAGRAM............................................................................................4-13

4. AV OUT, MEMORY CIRCUIT DIAGRAM .................................................................................4-15

•

WAVEFORMS.............................................................................................................................4-17

PRINTED CIRCUIT DIAGRAMS ....................................................................................................4-21

1. MD P.C. BOARD ......................................................................................................................4-21

4-2

Only for training and service purposes

LGE Internal Use Only

ELECTRICAL TROUBLESHOOTING GUIDE

1. DISC LOADING

YES

OK

NO

IC202(1, 6)

NO

IC202(7, 8, 2, 3).

See Figure 1, 3

NO

CN301(2, 4), SW301(1), CN202(13).

See Figure 2, 4

NO

IC301(VDD33, VDD12, +3VA).

See Figure 5

NO

IC301 VSS (1, 23, 35, 46, 63, 81, 100, 171, 180, 198, 208, 220, 234, 245)

NO

IC301 NRST(101) CN601(15).

See Figure 6

NO

X301(1, 3), TP +1.2VS.

See Figure 6

NO

IC301(84, 85, 86, 87), CN1601(4, 5, 6, 7).

See Figure 7

NO

CN301(2, 4).

See Figure 2, 4

No Loading/Unloading?

Checked the loading motor IC Vdd?

Checked the Load/Unload control?

Checked the Load/Unload SW?

Checked the MPEG Vdd?

Checked the MPEG Ground?

Checked the MPEG Reset?

Checked the MPEG X-tal?

Checked the main Micom data interface?

Checked the disc in load switch?

4-3

LGE Internal Use Only

2. SPI COMMNICATOIN

YES

OK

NO

IC301(VDD33, VDD12, +3VA).

See Figure 5

NO

IC301 VSS (1, 23, 35, 46, 63, 81, 100, 171, 180, 198, 208, 220, 234, 235)

NO

IC301 NRST(101)

NO

X301(1, 3).

See Figure 6

NO

IC301(84, 85, 86, 87) CN601(16, 17, 18, 19).

See Figure 7

No SPI Communication

Checked the Input voltage of MPEG IC?

Checked the GND condition of MPEG IC?

Checked the MPEG Reset?

Check the MPEG X-tal?

Checked the main Micom data interface?

3. VIDEO OUTPUT

YES

OK

NO

IC301(161)

NO

IC603(3, 5).

See Figure 18

NO

IC603(2, 4).

See Figure 18

. CN601(29)

No display on AUX monitor?

Checked the MPEG Video signal out?

Check the Video Amplifier Vcc, GND?

Check the Video Amplifier In, Out?

Only for training and service purposes

LGE Internal Use Only

4-4

4. DISC READING

YES

OK

NO

CN202(13), IC301(75).

See Figure 10

NO

IC201(18).

See Figure 11

NO

CN101(1,4).

See Figure 12

NO

FMON0.

See Figure 12

NO

CN101(2,3).

See Figure 13

NO

FMON1.

See Figure 13

NO

CN101(17).

See Figure 14

NO

CN201(1, 2, 3, 4).

See Figure 15, 16

No disc reading?

Checked the limit SW?

Checked the motor DRV mute control?

Checked the focus control?

Checked the focus error level out. (FE Mon)?

Checked the tracking control?

Checked the tracking error level out.(TE Mon)

Checked the RF signal out check?

Checked the sled motor control?

LGE Internal Use Only

4-5

YES

OK

NO

IC201(22, 27, 35, 42, 43)

NO

IC201(4, 16)

NO

IC201(36, 38, 41)

NO

IC201(37, 39, 40).

See Figure 8

NO

IC201(27~33).

See Figure 9

NO

IC201(5)

No disc reading?

No Spindle motor operating?

Checked the spindle driver IC Vdd?

Checked the spindle driver IC VHALF?

Checked the spindle driver IC GND?

Checked the A1, A2, A3 of the driver IC?

Checked the hall Bias signals?

Checked the spindle motor control?

4-6

Only for training and service purposes

LGE Internal Use Only

5. AUDIO OUTPUT

YES

OK

NO

IC301 (172, 173, 174,175). See Figure 17

NO

CN601(14)

No DVD/CD Sound?

Checked the MPEG Audio DAC Signal?

Checked the Audio mute?

4-7 4-8

BLOCK DIAGRAM

LGE Internal Use Only

4-9 4-10

CIRCUIT DIAGRAMS

1. CONNECTOR & INTERFACE CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

Only for training and service purposes

LGE Internal Use Only

4-11 4-12

2. DSP CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

LGE Internal Use Only

Only for training and service purposes

LGE Internal Use Only

4-13 4-14

3. FRONTEND CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

4-15 4-16

4. AV OUT, MEMORY CIRCUIT DIAGRAM

A

1

2

3

4

5

6

7

8

9

10

11

12

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

LGE Internal Use Only

Only for training and service purposes

LGE Internal Use Only

4-17 4-18

WAVEFORMS

LOADING MOTOR CONTROL ABOUT LOADING CONDITION

[ FIGURE 1 ]

[ FIGURE 4 ]

SWITCH CONDITION ABOUT LOADING

[ FIGURE 2 ]

LOADING MOTOR CONTROL ABOUT UNLOADING CONDITION

[ FIGURE 3 ]

[ 7 ]

CH1 IC202(7) CH1 CN301(2)

CH2 CN301(4)

CH3 CN202(12)

CH4 SW301(1)

CH2 IC202(8)

CH3 IC202(2)

CH4 IC202(3)

CH2 IC202(8)

CH3 IC202(2)

CH4 IC202(3)

SWITCH CONDITION ABOUT UNLOADING

MPEG IC VOLTAGE CONDITION WHEN THE BATTERY & ACC START ON

[ FIGURE 5 ]

MPEG RESET WHEN THE BATTERY & ACC START ON

[ FIGURE 6 ]

SPI INTERFACE)

[ FIGURE 7 ]

SPINDLE MOTOR DRIVING SIGNAL SA1, SA2, SA3 WHEN SPINDLE MOTOR IS WORKING

[ FIGURE 8 ]

HALL SENSOR SIGNAL H1+, H2+, H3+ AND SPD WHEN SPINDLE MOTOR IS WORKING

[ FIGURE 9 ]

LIMIT SWITCH CONDITION SIGNAL LDIN WHEN DISC IN

[ FIGURE 10 ]

MOTOR DRIVER MUTE SIGNAL STBY WHEN SPINUP PROCESS

[ FIGURE 11 ]

FOCUS DRIVING OUT F+, F- AND FOCUS ERROR FE WHEN NOMINAL STATE

[ FIGURE 12 ]

CH1 CN301(2)

CH2 CN301(4)

CH3 CN202(12)

CH4 SW301(1)

CH1 CN601(18)

CH2 CN601(17)

CH3 CN601(16)

CH4 CN601(19)

CH1 CN202(13)

CH1 IC201(18)

CH1 IC201(37)

CH2 IC201(39)

CH3 IC201(40)

CH1 IC301(2,13, 25, 36, 48...)

CH2 IC301(24, 47, 103, 167...)

CH3 IC301(151, 160, 165)

CH4 IC301(1, 12, 23, 35, 46...)

CH1 IC202(7)

CH1 L604

CH2 CN601(15)

CH3 X301(1, 3)

CH1 IC201(6)

CH2 IC201(27)

CH3 IC201(29)

CH4 IC201(31)

CH1 TP : FMON0

CH2 CN101(1)

CH3 CN101(4)

LGE Internal Use Only

4-19 4-20

TRACK DRIVING OUT T+, T- AND TRACK ERROR TE WHEN NOMINAL STATE

[ FIGURE 13 ]

[ FIGURE 16 ]

RF SIGNAL

[ FIGURE 14 ]

SLED STEPPING MOTOR DRIVING SIGNAL SIN1, SIN2 WHEN SLED MOVE TO ORIGIN POINT

[ FIGURE 15 ]

[ 7 ]

STEPPING MOTOR PHASE SIGNAL A+, A-, B+, B- WHEN SLED MOVE TO ORIGIN POINT

AUDIO DAC SIGNAL / NO DATA SIGNAL

[ FIGURE 17 ]

6DB VIDEO AMPLIFIER

[ FIGURE 18 ]

CH1 TP:FMON1

CH1 CN101(17)

CH1 IC201(7)

CH2 IC201(6)

CH1 IC401(1)

CH2 IC401(2)

CH3 IC401(3)

CH4 IC401(16)

CH2 CN101(3)

CH3 CN101(2)

CH1 CN201(2)

CH2 CN201(3)

CH3 CN201(1)

CH4 CN201(4)

CH1 IC603(3)

CH2 IC603(4)

CH3 IC603(2)

CH3 CN201(1)

CH2 CN201(3)

CH1 CN201(2)

CH3 CN201(1)

Only for training and service purposes

LGE Internal Use Only

4-21 4-22

PRINTED CIRCUIT DIAGRAMS

1. MD P.C. BOARD

(TOP VIEW) (BOTTOM VIEW)