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CAR NAVIGATION SYSTEM
SERVICE MANUAL
MODEL: LNC1200EEFS

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   Summary of Contents for LG LNC1200EEFS

  • Page 1

    CAR NAVIGATION SYSTEM SERVICE MANUAL MODEL: LNC1200EEFS...

  • Page 2

    [CONTENTS] 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...

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    SECTION 1. SPECIFICATION [CONTENTS] • SPECIFICATION ..............1-1...

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    SPECIFICATION GENERAL Output Power ......................Digital Output (S/PDIF) Power Source ..........................DC 14.4 V Ground System ..........................Negative Dimensions (W x H x D) .................262.54 x 156.2 x 236.2 mm Net Weight ............................2.8 kg DISPLAY LCD ........................17.78 cm (7 inch) TFT LCD Resolution ..........................

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    SECTION 2. NAME OF EACH PART [CONTENTS] • CONTROL PANEL ..............2-1 •...

  • Page 6: Control Panel

    CONTROL PANEL 1. Disc slot • Press and hold to: 2. Eject ( - Search (FF/REW): iPod Press to eject a disc from the unit. 11. SETUP ( 3. RESET hole • Press to access system settings. Press with thin object to reset the unit when it •...

  • Page 7: Steering Wheel Remote Control

    STEERING WHEEL REMOTE CONTROL 1. MODE Press to select a source. Press to operate Bluetooth HandsFree function. FM → AM → CD → USB (or iPod) → BT • Press to accept a call. → AUX → FM... • Press to make a call from last calls. 2.

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    SECTION 3. OVERALL BLOCK DIAGRAM [CONTENTS] • OVERALL BLOCK DIAGRAM ............3-1...

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    OVERALL BLOCK DIAGRAM Main Board Audio Board DDR2 DDR2 DDR2 DDR2 EXTERNAL AMP (128 MB) (128 MB) i-NAND DDR2 DDR2 SPDIF (8 GB) (128 MB) (128 MB) AUX Audio In Touch Module SPDIF SDRAM ECHO SPDIF Canceller Main Stereo NAVI IFAD AC97 Tuner...

  • Page 10

    SECTION 4. EXPLODED VIEWS [CONTENTS] • FRONT PART ..............•...

  • Page 11

    FRONT PART CABLE1 CABLE1 CABLE2 CABLE3 FRONT...

  • Page 12

    CABINET AND MAIN FRAME PART MAIN AUDIO & POWER CABLE5...

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    SECTION 5. FRONT PART [CONTENTS] • FRONT BLOCK DIAGRAM ............5-1 •...

  • Page 14

    FRONT BLOCK DIAGRAM < Main Block > < Front Block Diagram > CVBS (Rear Camera) R [7~0] R [7~2] G [7~0] G [7~2] B [7~0] B [7~2] PCLK CLKH Video BIAS CLKV Decoder (TW8816) HSYNC LCLK VSYNC VSYNC FCLK MAIN BOARD VCOM VOLTAGE 3.3 V...

  • Page 15

    FRONT PRINTED CIRCUIT BOARD (TOP VIEW)

  • Page 16

    FRONT PRINTED CIRCUIT BOARD (BOTTOM VIEW)

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    SECTION 6. MAIN PART [CONTENTS] • MAIN BLOCK DIAGRAM ............6-1 •...

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    MAIN BLOCK DIAGRAM Main Board Front CP 2.0B GPIO 3 3 41S2313 Board DE MULTIPLEXER AU_ADDR[4]/[5] CD CONNECTOR AU_CS2# 74LVC138APW HPI STATIC BUS CS[1-4] PSC3 BUFFER AU1354 AU_ADDR[1-3] 4CH UART -EXPANDER AU_DATA[0-7] Debug (800 MHz) SC16C754BIBM Decoder UART0 DDR2(128 MB) DDR2(128 MB) MICOM UART1...

  • Page 19

    MAIN PRINTED CIRCUIT BOARD (TOP VIEW)

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    MAIN PRINTED CIRCUIT BOARD (BOTTOM VIEW)

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    SECTION 7. AUDIO PART [CONTENTS] • AUDIO BLOCK DIAGRAM ............7-1 •...

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    AUDIO BLOCK DIAGRAM MM_CAN_H/L RADIO 24 PIN CONNECTOR 42 PIN CONNECTOR INTERNAL AMP Rx+/-, Tx+/- RS422 TRANSMITER MAX3077 LOGIC LEAF_DICE LEAF_DICE NAVI+/- MM_CAN BODY_CAN OPAMP TEF7000 TEF7000 TJA1055 TJA1055 S4580 COMPA COMPA- RATOR MICOM LDO MIC MUTE BD3875, 5 V SWITCH IC MICOM RESET MIC_MUTE...

  • Page 23

    POWER BLOCK DIAGRAM LT3481 3.75 V DCDC1(90 %) VDDY 1.8 V 120 mA B/UP MAX 2.7 A MAX 1500 mA DDR 1.8 V 1200 mA DCDC2(85 %) VDDX 3.3 V 65 mA MAX 1200 mA SYSTEM 3.3 V 1000mA DCDC3(87 %) VDDI 1.2 V 600 mA MAX 1000 mA BA33BC0FP...

  • Page 24

    AUDIO SOURCE FLOWCHART External DiRaNa2 DiRaNa2 AIN0 INTRO Welcoming MIDI chip (MONO) (5~8PIN) AC97 AIN1 CODEC NAVI L/R, VR (9~10 PIN) SD_HOST_OUT1 (76PIN) AIN2 AUX L/R External AUX Source SPDIF+ (11~14PIN) AUDIO AIN3 TMU UNIT (AUDIO+/-) (ECALL) BCK_HOST (19~20PIN) (75PIN) 2 WAY ECHO AIN4...

  • Page 25

    AUDIO CONNECTOR PIN DESCRIPTON A. POWER & SIGNAL CONNECTOR B. CAMERA & TMU CONNECTOR KET MG644408 (42PIN) TYCO AMP 1318853 (24PIN) NUMBER Name NUMBER NAME NUMBER NAME CAMERA_CVBS BATT_B+ AUTO_LIGHT CAMERA_B+ MM_CAN_L AUX_L HS_CAN_L AUX_GND NAVI_VOICE+ AUDIO+[ECALL] AUX_R NAVI_VOICE- TMU_GND ILL+ REVERSE_GEAR RS422_RX+_TMU...

  • Page 26

    AUDIO PRINTED CIRCUIT BOARD (TOP VIEW) 7-10...

  • Page 27

    AUDIO PRINTED CIRCUIT BOARD (BOTTOM VIEW) 7-11 7-12...

  • Page 28

    SECTION 8. TROUBLESHOOTING GUIDE [CONTENTS] • GENERAL PART (NAVIGATION) ........... . . 8-1...

  • Page 29

    GENERAL PART (NAVIGATION) Cannot identify current location. (GPS not receiving) GPS cannot be used indoors and must be connected to a power source with ACC in a vehicle in a location where the signal from the satellite can be received easily. When initially connecting the GPS, it usually takes about 10 minutes to be working normally, but the connection speed can differ depending on the weather condition and surrounding obstacles.

  • Page 30

    Map matching As mentioned, the GPS systems used by this Navigation System are susceptible to certain errors. Their calculations may on occasion place you to a location on the map where no road exists. In this situation, the processing system understands that vehicles travel only on roads, and is able to correct your position by adjusting it to a nearby road.

  • Page 31

    Trouble Shooting Guide Symptom Correction The Sceen is White. Case1) Replace Front Assy's 1) It is partially white screen. 2) All Button is working. The Screen is White. Case2) Replace Main BD 1) It is completely white screen. 2) All Button is not working. CD Deck is not Working.

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