LG LNC1200EEFS Service Manual Download Page 14

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FRONT BLOCK DIAGRAM

< Front Block Diagram >

< Main Block >

R [7~2]

G [7~2]

R [7~0]

G [7~0]

CVBS (Rear Camera)

Video

Decoder

(TW8816)

B [7~2]

HSYNC

VSYNC

CLKV

B [7~0]

BIAS

LCLK

PCLK

CLKH

MAIN

BOARD

7.0”

LCD

Panel

VSYNC

TOU

SCR
EEN

X-, X+, Y-, Y+

WM9713

FCLK

VCOM VOLTAGE

r-VOLTAGE 10

3.3 V

Key

I2C

KEY_RX, TX

B/T

Module

BT_RX, TX

RESET

PCM

SPI_CS, CLK, TX, RX

MICOM

AUDIO

BOARD

POWER/EJECT//-

Switch

Key

BACKLIGHT ON/OFF

DCDC+

LCD_PWM (Brightness Control)

LED BLU

Volume Key

BOARD

POWER

BLOCK

LCD7.4 V, LCD5 V, LCD3.3 V
ILL+, ILL-

DCDC

LED Driver

(AAT2823)

Reset

Key

Reset

5-2

5-1

Summary of Contents for LNC1200EEFS

Page 1: ...CAR NAVIGATION SYSTEM SERVICE MANUAL MODEL LNC1200EEFS SERVICE MANUAL MODEL LNC1200EEFS ...

Page 2: ...ENTS SECTION 1 SPECIFICATION SECTION 2 NAME OF EACH PART SECTION 3 OVERALL BLOCK DIAGRAM SECTION 4 EXPLODED VIEWS SECTION 5 FRONT PART SECTION 6 MAIN PART SECTION 7 AUDIO PART SECTION 8 TROUBLESHOOTING GUIDE ...

Page 3: ...SECTION 1 SPECIFICATION CONTENTS SPECIFICATION 1 1 ...

Page 4: ...Y LCD 17 78 cm 7 inch TFT LCD Resolution 800 X 480 Back Light LED Type CD SECTION Frequency Response 20 Hz to 20 kHz S N Ratio 70 dB Distortion 0 3 Channel Separation 1 kHz 60 dB RADIO SECTION FM Frequency Range 87 5 to 108 MHz S N Ratio 50 dB Distortion 1 Usable Sensitivity 12 dBμV AM MW Frequency Range 522 to 1620 kHz S N Ratio 45 dB Distortion 1 0 Usable Sensitivity 35 dBμV ...

Page 5: ...SECTION 2 NAME OF EACH PART CONTENTS CONTROL PANEL 2 1 STEERING WHEEL REMOTE CONTROL 2 2 ...

Page 6: ...matic tuning Track up down Press and hold to Search FF REW 11 SETUP Press to access system settings Press and hold to check the device ID the software version the navigation version and the map version 12 Right knob TUNE Rotate it clockwise counterclockwise Searches the previous or next radio frequency Manual tuning Skips a track file up down in all list screen ZOOM IN ZOOM OUT Rotate to change th...

Page 7: ... Track up down Press and hold to Manual tuning Search FF REW 4 Press to operate Bluetooth HandsFree function Press to accept a call Press to make a call from last calls Press and hold to switch the sound path during a call Hands free phone 5 Press to hang up a call 6 Press to activate voice recognition mode Press once more to cancel voice recognition RADIO USB CD iPod BT RADIO USB CD BT iPod ...

Page 8: ...SECTION 3 OVERALL BLOCK DIAGRAM CONTENTS OVERALL BLOCK DIAGRAM 3 1 ...

Page 9: ...anceller GPS Module I2S SPDIF AU1354 800 MHz USB I2C UART I2C I2S Echo Canceller I2S1 I2S I POD Protector CAN CAN CAN Transceiver UART0 Sub Tuner UART1 AIN Debug D D I2C2 CD Deck I2C Local Bus 4 CH UART Controller Video In Micom ADC GPIO UART3 Transceiver NOR Flash Video Decoder PGS rear camera video Bluetooth Echo Canceller PCM KEY MICOM AUX video input MIC Video Decoder AU1354 UART 3 Button key ...

Page 10: ...SECTION 4 EXPLODED VIEWS CONTENTS FRONT PART 4 1 CABINET AND MAIN FRAME PART 4 3 ...

Page 11: ...4 2 4 1 FRONT PART B A41 A42 268 A43 469 459 451 451 459 459 A B F A C D 260 261 C D F 250 FRONT 269 451 451 CABLE1 CABLE1 CABLE2 CABLE3 478 478 ...

Page 12: ...CABINET AND MAIN FRAME PART 270 451 451 451 451 451 451 451 A 300 453 301 453 472 283 282 451 469 281 280 273 A50 A47 AUDIO POWER MAIN 451 451 272 B 451 A44 A26 CABLE5 271 A B 4 4 4 3 ...

Page 13: ...SECTION 5 FRONT PART CONTENTS FRONT BLOCK DIAGRAM 5 1 FRONT PRINTED CIRCUIT BOARD TOP VIEW 5 3 FRONT PRINTED CIRCUIT BOARD BOTTOM VIEW 5 5 ...

Page 14: ...LCD Panel VSYNC TOU CH SCR EEN X X Y Y WM9713 4 FCLK VCOM VOLTAGE r VOLTAGE 10 3 3 V Key I2C KEY_RX TX B T Module BT_RX TX RESET PCM 4 4 SPI_CS CLK TX RX 4 2 ey MICOM AUDIO BOARD POWER EJECT VOLUME Switch Key BACKLIGHT ON OFF DCDC LCD_PWM Brightness Control LED BLU EN Volume Key BOARD POWER BLOCK LCD7 4 V LCD5 V LCD3 3 V ILL ILL DCDC LED Driver AAT2823 Reset Key Reset 5 2 5 1 ...

Page 15: ...FRONT PRINTED CIRCUIT BOARD TOP VIEW 5 3 5 4 ...

Page 16: ...FRONT PRINTED CIRCUIT BOARD BOTTOM VIEW 5 5 5 6 ...

Page 17: ...SECTION 6 MAIN PART CONTENTS MAIN BLOCK DIAGRAM 6 1 MAIN PRINTED CIRCUIT BOARD TOP VIEW 6 3 MAIN PRINTED CIRCUIT BOARD BOTTOM VIEW 6 5 ...

Page 18: ... RESET POWER ON DDR2 128 MB DDR2 128 MB DDR2 128 MB DDR2 12 8MB AC 97 Audio Touch CODEC I2C AC97 MEDIA DSP I2S PSC1 PSC2 Touch MIC U S SD RAM UART1 MICOM GPS RX TX GPS Module RAD RD LATCH SD0 UART3 Connector S B D D VIDEO DECODER TW9910 KEY RX TX CVBS CAMERA CVBS AUX YMUX2 YMUX1 YMUX0 KEY MICOM Nor Flash 128 Mbit i NAND 8 G Co ecto I2S Audio Board 24PIN JACK RS422 TRANSCEIVER MAX3077EESA DIRANA SA...

Page 19: ...MAIN PRINTED CIRCUIT BOARD TOP VIEW 6 4 6 3 ...

Page 20: ...MAIN PRINTED CIRCUIT BOARD BOTTOM VIEW 6 5 6 6 ...

Page 21: ...DIO PART CONTENTS AUDIO BLOCK DIAGRAM 7 1 POWER BLOCK DIAGRAM 7 3 AUDIO SOURCE FLOWCHART 7 5 AUDIO CONNECTOR PIN DESCRIPTON 7 7 AUDIO PRINTED CIRCUIT BOARD TOP VIEW 7 9 AUDIO PRINTED CIRCUIT BOARD BOTTOM VIEW 7 11 ...

Page 22: ... MUTE MIC_MUTE I2C I2C FRONT RIGHT FRONT LEFT REAR RIGHT REAR LEFT Rx Tx AUDIO MICOM uPD78F3376A RADIO AUDIO DSP MAIN XTERNA B 6 V DET BD5230 CANCELLER FM1188 SWITCH IC Reverse BT_SPDIF 6 V Det S W CTR RDS1 RDS2 ADSP_IOF11 DSP_RESET I2C ILL_Det DSP SAF7741 BOARD L AMP IC CPU_I2C MIC C I2C DVD_SPDIF DMB_I2S MEDIA_I2S CD I2S SPDIF SPDIF PO SPI BUSY SYNC_REQ RESETB ERROR I2C SPDIF SPDIF LCD RE _ XM_I...

Page 23: ... 85 MAX15023 300 mA 1 8 A BA00C0WFP 6 5 V 0 5 A 1 3 W 5 05 V MAX 4 2 A 85 CD PICK_UP CAMERA 6 5 V 100 mA 900 450 450 450 0 2 0 2 0 2 0 2 SYSTEM_5 V XC6221B332NR 3 3 V 200 mA 150 mW ECHO_3 3 V 20 mA ECHO_1 8 V XC6221B332NR 1 8 V 200 mA 150 mW CD MOTOR NCV5661DT 3 3 V 1 A 1 2 W SAF7741HV 3 3 V 450 mA 0 0 5 1 0 0 5 1 500 0 2 2 TUNER_5 V 20 mA LTC3560 1 5 A 1 25 V 80 TPS2068 1 5 A USB_5 V 0 7 0 7 0 7 ...

Page 24: ...UX Source B T M d l 2 WAY BUFFER ECHO CANCELLER PCM PCM AIN3 19 20PIN AUDIO ECALL TMU UNIT AUDIO 21 22PIN SPDIF1D 24PIN SPDIF2D B T AUDIO DVD SPDIF WS_HOST 74PIN ceiver mitter SPDIF Module DVD BUFFER CANCELLER HANDS_FREE INTERNAL TYPE STREAMING 25PIN NAVI CD DECK I2S IN4 I2S_IN2 XM Power DAC FL 43PIN DAC FR 42PIN CD MEDIA IIS I2S_IN3 C C External USB Source CPU D D I2S_IN4 AMP DAC RL 38PIN DAC RR ...

Page 25: ...SPEED A23 GND B17 AUX_CVBS_IN A22 MIC B16 AUX_VGND A21 MIC B15 SPDIF A20 AUX_DET B14 AMBIENT A19 ALT_IN B13 Rear Left A18 REMOTE_ANTENNA B12 Rear Left A17 Key_GND B11 Rear Right A16 PARKING B10 Rear Right North American Optional KET MG644408 42PIN B 10 1 18 9 A 13 1 24 12 B CAMERA TMU CONNECTOR TYCO AMP 1318853 24PIN NUMBER Name 12 CAMERA_CVBS 11 NC 10 CAMERA_B 9 NC 8 NC 7 NC 6 AUDIO ECALL 5 TMU_G...

Page 26: ...AUDIO PRINTED CIRCUIT BOARD TOP VIEW 7 9 7 10 ...

Page 27: ...AUDIO PRINTED CIRCUIT BOARD BOTTOM VIEW 7 12 7 11 ...

Page 28: ...SECTION 8 TROUBLESHOOTING GUIDE CONTENTS GENERAL PART NAVIGATION 8 1 ...

Page 29: ...iving road and the road on the map in the product Even though GPS is usually very accurate there is a small margin for error When the GPS receiver is installed there can be an error of about 10m But for newly built roads the problem could come from the data update to the map Cannot see the map Perhaps you cannot see the map even when you have executed the navigation menu This happens when the data...

Page 30: ...lay Check the type of the disc The disc is inserted upside down Insert the disc with the label upward The files on the disc are an irregular file format Check the file format There is no sound The volume level is low Adjust the volume The mute is on Turn the mute off Map matching As mentioned the GPS systems used by this Navigation System are susceptible to certain errors Their calculations may on...

Page 31: ... All Button is working Replace Front Assy s 2 The Screen is White Case2 1 It is completely white screen 2 All Button is not working Replace Main BD 3 CD Deck is not Working 1 No play CD 2 No insert CD Replace CD Deck 4 No Sound First Check as below 1 Check CD Sound 2 Check Radio Sound Replace Audio BD 8 3 ...

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