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LG 55LW5700 Service Manual
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LG 55LW5700 Service Manual

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See also: Owner's Manual , Manual Del Usuario
LED LCD TV

SERVICE MANUAL

CHASSIS : LJ12C
MODEL : 55LW5700
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL66981618 (1105-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
55LW5700-SA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 55LW5700

  • Page 1: Service Manual

    Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED LCD TV SERVICE MANUAL CHASSIS : LJ12C MODEL : 55LW5700 55LW5700-SA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL66981618 (1105-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    CONTENTS ....................2 SAFETY PRECAUTIONS ................. 3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............. 12 EXPLODED VIEW .................. 20 SVC. SHEET ....................Copyright LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the Copyright LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    Temp : 0 ~ 40 deg Humidity : ~ 80 % Storage Environment Temp : -20 ~ 60 deg Humidity : -85 % Copyright LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 0.315 temperature at the warm mode after heat run 0.327 0.329 0.331 T.V more than 60 minutes at Cinema mode. Copyright LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 80 kHz Pixel Clock - 170 MHz Copyright LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 80 kHz Pixel Clock - 170 MHz Copyright LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 Side by Side, Top & Bottom, Checkerboard Single Frame Sequential 1920*1080 56.250 148.5 HDTV 1080P Side by Side, Top & Bottom, Checkerboard Single Frame Sequential Copyright LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 12. RGB input 3D(PC) Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed 1920*1080 67.50 60.00 148.5 WUXGA (Reduced Blanking) (Side by Side), Top and Bottom Copyright LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 12: Adjustment Instruction

    (Display Data Channel) download 3.2. Set Assembly Adjustment Color Temperature (White Balance) Adjustment Using RS-232C PING Test Selection Factory output option Copyright LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 • xb 00 60: Change to RGB-PC mode(No action) • ad 00 10: Adjust 1080p RGB • xb 00 90: Endo of Adjustmennt Copyright LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 • RGB 1080p adjustment in RGB input mode • If you success RGB 1080p Adjust. You can see “ADC RGB-DTV Success” Copyright LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 - Set instruments and Jig. Like pic.5), then turn on PC and Jig. • EDID data for 3DTV ( Model name = LG TV ) - Operate DDC write S/W (EDID write & read) - It will operate in the DOS mode.
  • Page 16 * If it needs, offset adjustment (wb 00 20-start, wb 00 2f- end) • “wb 00 ff”: End of white balance adjustment (inner pattern disappear) Copyright LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 - COOL : T=11000K, Δuv=0.000, x=0.276 y=0.283 36-49 50-79 - MEDIUM : T=9300K, Δuv=0.000, x=0.285 y=0.293 Over80 - WARM : T=6500K, Δuv=0.000, x=0.313 y=0.329 Copyright LG Electronics. Inc. All right reserved. -- 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 Select one of these three (USA, CANADA, MEXICO) defends on its market using “Vol. +/-“button. * Caution : Don’t push The INSTOP KEY after completing the function inspection. Copyright LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 9.5 After download is finished, remove the USB stick. 9.6 Press “IN-START” key of ADJ remote control, check the S/W version. Copyright LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 20: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
  • Page 21 IC101 IC101 IC101 LG1121A LG1121A LG1121A +1.0VDC +3.3V_IO R106 R110 R112 R114 R117 R148 SPI FLASH(4Mbit) +3.3VD TXA0P_2D3D RXA0P TXA0P/RRV7P TXA0P VDD_1 VDD33_1 VSS_1 VSS_151 TXA0N_2D3D RXA0N TXA0N/RRV7N TXA0N VDD_2 VDD33_2 VSS_2 VSS_152 TXA1P_2D3D TXA1P XTAL RXA1P TXA1P/RRV6P VDD_3 VDD33_3 VSS_3 VSS_153 TXA1N_2D3D...
  • Page 22 IC101 LG1121A DDR0_A[0-13] DDR1_A[0-13] IC201 IC202 AJ33 AM17 DDR0_A[0] DDR1_A[0] DDR0_A[0-13] DDR0_A[0] DDR1_A[0] DDR1_A[0-13] H5TQ1G63DFR-PBC H5TQ1G63DFR-PBC +0.75V_VREF0_M0 DDR0_A[1] AN33 DDR1_A[1] +0.75V_VREF1_M0 DDR0_A[1] DDR1_A[1] AK34 AP16 DDR0_A[2] DDR1_A[2] DDR0_A[2] DDR1_A[2] DDR0_A[3] AG33 AP19 DDR1_A[3] +0.75V_VREF0_M1 +0.75V_VREF1_M1 DDR0_A[3] DDR1_A[3] AN32 DDR0_A[0] DDR0_A[4] DDR1_A[4] DDR1_A[0] VREFCA...
  • Page 23 +1.0V_Normal +1.5V_DDR0 VLCD_POWER MAX 782mA +3.3VD (+12V) VLCD_POWER (+12V) R306 L301 MAX 2.92A L304 CIS21J121 C308 0.1uF CIS21J121 +1.5V0 +2.5V +1.0V DCDC_Old DCDC_Revision IC303 IC303-*1 AOZ1072AI AOZ1072AI-3 L306 L303 3.6uH PGND LX_2 IC302 3.6uH PGND LX_2 C303 C300 COMP AOZ1024DI LX_1 R319 0.1uF...
  • Page 24 [PMIC Block] VLCD_POWER (+12V) VCC_LCM (+3.3V) R451 L402 1/10W Place Bottom 22uH R427 1/10W (+5V) 2.2A C410 C414 C418 C420 D403 C441 C432 C435 C438 10uF 10uF 10uF 10uF SMAB34 R430 22uF 22uF 0.1uF 5.1K R408 150K C427 TCOMP 0.1uF VCORE VLCD_POWER (+1.0V)
  • Page 25 [FRC-II 51P LVDS input wafer] [FRC-II 80P mini-LVDS output wafer] [To LED Driver] VDD_LCM (+16V) P503 12507WR-08L C502 C503 C504 C505 C506 C508 C510 0.1uF 10uF 10uF 10uF 10uF 10uF 10uF P501 P502 P500 VLCD_POWER 104060-8017 104060-8017 FI-RE51S-HFK-A (+12V) L/DIM0_SCLK L500 VCC_LCM CIS21J121...
  • Page 26 LG5811 will be change LG5811A. IC601 IC601 Please use LG5811 unitil revision. LGE5811A LGE5811A +3.3VDD +3.3VDD Decaps TXA0P LLV0P RXA0P LLV0P VDD_33_1 GND_1 VCC_LCM TXA0N RXA0N LLV0N LLV0N VDD_33_2 GND_2 (+3.3V) +3.3VDD +3.3VDD +3.3VDD TXA1P LLV1P RXA1P LLV1P VDD_33_3 GND_3 TXA1N RXA1N LLV1N...
  • Page 27 +3.3V_LG1131_LVDS_Rx +3.3VD +3.3V_LG1131_Rx +3.3VD L702 CIS21J121 +3.3V_LG1131_VDD +3.3V_LG1131_TX R715 C729 C726 C731 C703 C705 C701 0.1uF 10uF 0.1uF 0.1uF 0.1uF R714 RESET RESET_LG1131 t_dout(4) : rst_pix2_n +3.3V_LG1131_Rx +1.0V_LG1131 R716 SW700 JTP-1127WEM RESET_LG1131 R700 R702 R704 R706 R708 R710 VDD10_1 GND_13 RXB4P TXB4P RXB4P...
  • Page 28 Strap Setting NAND FLASH MEMORY 8Gbit 16Gbit Boot ROM Device Select - (FA4,FAD7,FAD2,FAD1) +3.3V_Normal +3.3V_Normal +3.3V_Normal 0000: ST Micro M25P or compatible Serial Flash IC102-*1 0010: 8-bit 512Mbit 512B page SLC NAND Flash devices TH58DVG4S0ETA20 IC102 0100: 8-bit 128, 256Mbit 512B page SLC NAND Flash devices TC58DVG3S0ETA00 0110: 8-bit 1Gbit 2KB page SLC NAND Flash devices R113...
  • Page 29 C257 C264 C268 C250 4.7uF 0.1uF 4.7uF 0.1uF MODEL OPTION 4.7uF +3.3V_Normal USB_AVDD33 +3.3V_Normal HDMI_AVDD33 L212 L216 external NO_FRC internal LG FRC2 BLM18PG121SN1D BLM18PG121SN1D URSA5 C283 MODEL_OPT_0 C291 C293 0.1uF 4.7uF 0.1uF MODEL_OPT_1 HIGH IC101 +0.9V_CORE LGE35230(BCM35230KFSBG) MODEL_OPT_2 +3.3V_Normal VDAC_AVDD33...
  • Page 30 IC101 LGE35230(BCM35230KFSBG) C320 0.1uF DSUB_R+ C321 0.1uF INCM_R C327 0.1uF R311 DSUB_G+ NON_BCM_CAP C328 0.1uF INCM_G VI_R R317 VI_INCM_R VI_G BCM35230_with_CAP_220pF VI_INCM_G C322 0.1uF DSUB_B+ VI_B C323 0.1uF INCM_B VI_INCM_B IC101-*1 R312 LGE35230 DSUB_HSYNC HSYNC_IN DSUB_VSYNC VSYNC_IN VIDEO INCM C329 0.1uF BCM_CAP COMP1_Y...
  • Page 31 DUAL COMPONENT IC401,IC402 1ST : EAN61667501, 2ND : EAN61570701 IC401-*1 1ST : T-K4B2G1646B_HCK0, 2ND : T-H5TQ2G63BFR-PBC IC402-*1 DDR STRAP DDR_DQ[0] DDR_DQ[1] DDR_DQ[2] DDR_DQ[3] DDR_DQ[4] +1.5V_DDR +1.5V_DDR NFM18PS105R0J NFM18PS105R0J C410 C432 JEDEC Types : DDR_DQ[0:4] 6.3V 6.3V R401 R403 R405 R407 R409 4.7K 4.7K...
  • Page 32 DUAL COMPONENT +12V PANEL_POWER FROM LIPS & POWER B/D Q501,Q504, 1ST : 0TRIY80001A 2ND : 0TR387500AA L511 TYP 1450mA Q505,Q506 12V_PANEL +3.5V_ST RT1P141C-T112 MLB-201209-0120P-N2 1ST : 0TRIH80004A, 2ND : EBK61012501, 3RD : 0TR102009AM Q502 Q502 PANEL_VCC C551 Q507 C550 1ST : EBK60752501, 2ND : EBK61011501 0.1uF R508 0.01uF...
  • Page 33 NEC MICOM +3.5V_ST R641 C602 C603 MICOM_DOWNLOAD 13pF 13pF X601 For Debug 10MHz P601 +3.5V_ST 12505WS-12A00 X602 MICOM_RESET 32.768KHz NEC_ISP_Tx R642 +3.5V_ST 10Mhz Crystal 4.7M NEC_ISP_Rx OCD1A OCD1B +3.5V_ST JTP-1127WEM FLMD0 C608 0.1uF R606 C604 0.1uF R647 R607 +3.5V_ST NEC_ISP_Rx 1/16W R610 NEC_ISP_Tx...
  • Page 34 DUAL COMPONENT D707,D708 1ST : 0DD184009AA 2ND : 0DSIH00028A D710,D711 BODY_SHIELD 1ST : T-BAT54_SUZHO, 2ND : 0DSON00138A D713 5V_HDMI_4 5V_HDMI_1 BODY_SHIELD HDMI_HPD_4 HDMI_HPD_1 VR708 R729 VR706 R728 HP_DET HP_DET R727 R737 C717 C714 0.1uF 0.1uF VR707 R735 R730 VR703 * HDMI CEC 3.6K 3.6K DDC_DATA...
  • Page 35 RGB/ PC AUDIO/ SPDIF/ EARPHONE/ RS232C DUAL COMPONENT EARPHON JACK +5V_Normal RGB PC D804,D805,D806 D810 KDS184 D807,D808,D813 1ST : EAH39491601, 2ND : EAH33945901 D814 D810 1ST : 0DD184009AA, 2ND : 0DSIH00028A JK803 +3.3V_Normal KJA-PH-0-0177 Q801 1ST : 0TRIY80001A, 2ND : 0TR387500AA +5V_Normal IC801 74F08D...
  • Page 36 DUAL COMPONENT Q901,Q902,Q903 1ST : 0TRIY80001A 2ND : 0TR387500AA Q904,Q905,Q906 D903,D904 1ST : EAH42720601, 2ND : EAH60994401 D905,D906 +3.5V_ST IR & KEY IR_12P IR_15P R933 EEPROM_SCL P902 P901 R920 12507WR-12L 12507WR-15L R919 D905 CDS3C05HDMI1 5.6V EEPROM_SCL R915 +3.5V_ST KEY1 R934 EEPROM_SDA EEPROM_SDA R916...
  • Page 37 WIRELESS READY MODEL DUAL COMPONENT D1001,D1002 1ST : EAH42720601 2ND : EAH60994401 Q1001 1ST : EBK61012601, 2ND : 0TRDI80002A Q1002 1ST : EBK60752501, 2ND : EBK61011501 JK1001 KJA-PH-3-0168 Wireless power WIRELESS VCC(24V/20V/17V)_1 VCC(24V/20V/17V)_2 VCC(24V/20V/17V)_3 VCC(24V/20V/17V)_4 VCC(24V/20V/17V)_1 +24V VCC(24V/20V/17V)_1 DETECT +3.3V_Normal INTERRUPT R1002 C1002...
  • Page 38 CVBS 1 PHONE JACK CVBS2 REAR JACK +3.3V_Normal R1141 R1112 AV2_R_IN 2.7K R1113 D1109 C1118 R1116 AMOTECH C1123 5.6V 470K 560pF AV1_CVBS_DET 560pF D1105 R1142 5.6V AV2_L_IN JK1102 D1110 KJA-PH-1-0177 C1119 AMOTECH R1117 C1124 5.6V M5_GND 470K 560pF 560pF JK1104 R1136 PPJ233-01 AV1_CVBS_IN...
  • Page 39 4.7K MLB-201209-0120P-N2 OUT_2 2 IN_1 120-ohm OUT_1 3 IN_2 C1220 4 EN C1224 C1231 10uF R1223 0.1uF 100uF 2.7K EAN61849601 USB_CTL1 3AU04S-305-ZC-(LG) JK1201 /USB_OCD1 NON_WIFI R1230 SIDE_USB_CTL1 R1231 SIDE_USB_OCD1 NON_WIFI USB_DM1 USB_DP1 NON_WIFI D1203 D1205 R1224 WIFI SIDE_USB_DM CDS3C05HDMI1 CDS3C05HDMI1...
  • Page 40 TI solution M_REMOTE OPTION +3.3V_Normal +3.3V_Normal P1302 12507WR-12L L1303 M_REMOTE 120-ohm M_REMOTE 3.3V R1321 R1322 R1323 M_REMOTE R1315 2.7K 2.7K 2.7K M_REMOTE M_REMOTE M_REMOTE M_REMOTE_RX M_REMOTE R1316 M_REMOTE_TX M_REMOTE R1317 RESET M_RFModule_RESET M_REMOTE R1318 DC_MREMOTE M_REMOTE R1319 DD_MREMOTE M_REMOTE R1320 GPIO_0 3D_GPIO_0 M_REMOTE...
  • Page 41 Ethernet Block DUAL COMPONENT D1401,D1402 D1403,D1404 1ST : EAH42720601 2ND : EAH60994401 D1405,D1406 +2.5V_BCM35230 L1401 MLB-201209-0120P-N2 JK1401 XRJH-01A-4-DA7-180-LG(B) C1401 0.1uF EPHY_TDP EPHY_TDN EPHY_RDP EPHY_RDN D1401 D1402 D1404 D1406 5.5V 5.5V 5.5V 5.5V LAN_ESD LAN_ESD LAN_ESD LAN_ESD R10[GND] +3.3V_Normal YL_C EPHY_ACTIVITY...
  • Page 42 FHD120Hz LVDS output(51pin+41Pin) P1501 P1502 FI-RE51S-HFK-A FI-RE41S-HFK-A LVDS_41P REVERSE MARK LVDS_41P FRC2 LVDS_SEL R1504 3D_SYNC_RF C1504 2.2uF +3.3V_Normal FRC2 R1506 SDA2_3.3V FRC2 R1507 SCL2_3.3V R1513 FRC2 R1508 FRC_RESET 3.3K LVDS_SEL_HIGH R1514 LVDS_SEL_LOW SHARP_60INCH R1516 PANEL_CTL TXC0N TXC0P TXA0N TXC1N TXA0P TXC1P TXA1N TXC2N...
  • Page 43 [Local Dimming Block] P1601 12507WR-08L L/DIM0_SCLK L/DIM0_MOSI R1601 SCL2_3.3V LPB_42/47/55 R1602 SDA2_3.3V LPB_42/47/55 L/DIM0_VS SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. BCM35230 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR L_DIMMING THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 44 +3.3V_Normal AMP_RESET_N DUAL COMPONENT C1834 1000pF Q1801 1ST : 0TRIY80001A 2ND : 0TR387500AA L1803 +24V_AMP BLM18PG121SN1D R1851 AUD_MASTER_CLK +24V_AMP +24V C1881 C1842 C1846 C1848 0.01uF 0.1uF 0.1uF 10uF C1832 C1883 10uF 0.1uF L1801 SPK_L+ MLB-201209-0120P-N2 D1805 1N4148W R1823 R1834 L1810 100V R1839 10.0uH...
  • Page 45 DUAL COMPONENT Q1901 1ST : 0TRIY80001A 2ND : 0TR387500AA Q1902 1ST : EBK60752501, 2ND : EBK61011501 IC1904 1ST : 0ISTLPH062A, 2ND : EAN40055001 PCM_MDI[0-7] CI_MDI[0-7] Close to BCM35230 PCM_MDI[0] R1909 22 OPT CI_MDI[0] CI_MDI[1] R1910 PCM_MDI[1] 22 OPT BCM INT Demod AR1903 22 OPT PCM_MDI[2]...
  • Page 46 H/NIM & F/NIM & T/C/S2 Combo Tuner DUAL COMPONENT OPTION TABLE IC2204 1ST:T-AP2114H(EAN61573601) / 2ND:T-TJ3940S (EAN61573501) H/NIM H/NIM H/NIM F/NIM_CN F/NIM_Brazil DVB-T/C/S2 F/NIM_T/C F/NIM_T2 (Brazil,Taiwan) (AU,Latin) (China) (Brazil) (Eu,Aisa) (EU) NON_DVB_S: use H/NIM and F/NIM DVB_S: use DVB-T/C/S2 combo Tuner Non_DVB_S Non_DVB_S Non_DVB_S...
  • Page 47 DVB-S2 LNB Part Allegro (Option:LNB) D2301 D2304 SMAB34 SMAB34 +12V_LNB C2307 C2302 C2324 C2305 0.01uF 68uF 68uF L2301 33UH C2312 SP-7850_33 DCDC_GND and A_GND are connected close to Boost pin(#1) C2311 0.1uF 2.4A 10uF DCDC_GND and A_GND are connected in pin#27 close to VIN pin(#25) DCDC_GND PCB_GND and A_GND are connected...
  • Page 48 DUAL COMPONENT Q2502,Q2503 Q2504,Q2506 1ST : 0TRIY80001A 2ND : 0TR387500AA Q2507,Q2508 Q2501 1ST : EBK61012701, 2ND : EBK58172301 1ST : 0TRIH80004A, 2ND : EBK61012501, 3RD : 0TR102009AM Q2505 D2513 1ST : T-BAT54_SUZHO, 2ND : 0DSON00138A Full Scart(18 Pin Gender) +5V_Normal +3.3V_Normal IN CASE OF SMALL= 15V +12V...
  • Page 49 NON CHB TS Output CHBO_TS_SERIAL CHBO_TS_CLK CHBO_TS_VAL_ERR CHBO_TS_SYNC CHB_RESET SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS BCM35230 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON CHB THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 50 DUAL COMPONENT China Hotel Option Q2901 1ST : EBK61012601 2ND : 0TRDI80002A +24V_AMP P2901 12505WS-09A00 CN_HOTEL R2904 0 CN_HOTEL C2901 0.1uF CN_HOTEL AUDIO_R +3.3V_Normal CN_HOTEL R2903 0 AMP_RESET_N R2902 CN_HOTEL AMP_MUTE_HOTEL Q2901 R2901 200 MMBT3904(NXP) AMP_MUTE_HOTEL CN_HOTEL CN_HOTEL SPK_R+_HOTEL SPK_R-_HOTEL SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 51 3D_SYNC L_VS SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. BCM35230 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON URSA THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 52 M1-*3 M1-*2 M1-*1 MDS62110206 MDS62110208 MDS62110210 MDS62110204 GASKET_6.5T GASKET_5.0T GASKET_4.5T GASKET_5.5T M2-*2 M2-*1 M2-*3 MDS62110208 MDS62110206 MDS62110210 MDS62110204 GASKET_4.5T GASKET_6.5T GASKET_5.0T GASKET_5.5T M3-*3 M3-*1 M3-*2 MDS62110206 MDS62110208 MDS62110210 MDS62110204 GASKET_6.5T GASKET_4.5T GASKET_5.0T GASKET_5.5T M4-*2 M4-*1 M4-*3 MDS62110208 MDS62110206 MDS62110210 MDS62110204 GASKET_4.5T GASKET_6.5T GASKET_5.0T...
  • Page 53 M13-*2 M13-*1 MDS62110204 MDS62110208 MDS62110210 GASKET_5.5T GASKET_5.0T GASKET_4.5T M14-*2 M14-*1 MDS62110204 MDS62110208 MDS62110210 GASKET_5.5T GASKET_4.5T GASKET_5.0T M15-*2 M15-*1 MDS62110204 MDS62110208 MDS62110210 GASKET_5.5T GASKET_4.5T GASKET_5.0T M13-*4 M13-*3 M13-*5 MDS62110205 MDS62110206 GASKET_7.5T MDS62110209 GASKET_6.5T GASKET_8.5T M14-*4 M14-*3 M14-*5 MDS62110205 MDS62110206 MDS62110209 GASKET_7.5T GASKET_6.5T GASKET_8.5T M15-*4...
  • Page 55 LCD TV Repair Guide `11 years New Models < Applicable Model > XXLW9500-SA XXLV5500-SD ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 56 Overview for ’11 Broadband Model SCA (Brazil) (Hardware) ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 57 LF20 32 (5/3W) Minimalist LD350 LK330 32/26(4/3W) HD,LD350 Tool(32”-AUO) 26(6/3W).22(5/2W) LK310 42/37/32/26/22/19 LD330 26/22(3/4W) HD,LD350 Tool LH20 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 58 42inch : H(2) * V(8) = 16Block Local 42inch : H(2) * V(8) = 16Block Dimming 42inch : H(2) * V(8) = 16Block Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 59 42inch : H(12) * V(4) = 48Block Dimming 47inch : H(12) * V(5) = 60Block 55inch : H(16) * V(6) = 96Block Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 60 To T-CON BOARD Audio AMP (10W+10W) (W/ LV5500) To T-CON BOARD wifi (W/O LV5500) Soft touch +IR RF assy (W/O LV5500) Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 61 COMP COMP1 Sub Micom (sanyo) Rear Wireless Ready PC-RGB RGB,H/V L/R In PC-AUDIO OPTIC SPDIF OUT M-Remote UART Module Ethernet RS-232C Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 62 [DSUB_DET] // GPIO [PC_L_IN] [AV1_R_IN] [PC_R_IN] PC L,R [AV1_L_IN] [AV1_CVBS_IN] CVBS [AV1_CVBS_DET] AV DET [AV1_R_IN] [AV1_L_IN] [AV1_CVBS_IN] CVBS [AV1_CVBS_DET] AV DET Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 63 (LGSIC) (BCM) 3D_Sync SPI/Vsync LED BLU control LED BLU control [ All in one main PCB for XXLW9500SA, ALEF LED Backlight] Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 64 LED driver / PSU T-CON to Module 80pin FFC ALEF Module Assy Multi-cable: IR+MOTION+WIFI +SPK WOOFER SPK CABLE Local dimming cable 8pin Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 65 Main / PSU cable Main / Module LVDS cable Drive B/D Cable Multi-cable: IR + Soft Touch Edge Module Assy SPK CABLE Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 66 Main / PSU cable Multi-cable: Main PSU/Sub PSU CABLE Main / T-Con LVDS cable 51PIN IR+MOTION+WIFI +SPK LED driver / PSU WOOFER SPK CABLE Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 67 Soft Touch + IR PCB RF MOTION ASSY SPK unit WIFI ASSY Soft Touch RF MOTION ASSY WIFI ASSY IR PCB To Main Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 68 Interconnection – sub PCB( LV5500 Series ) Soft Touch + IR PCB SPK unit Soft Touch IR PCB To Main Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 69 Soft Touch PCB IR PCB RF Motion Assy SPK unit IR PCB Soft Touch RF Motion Assy To Main To Main Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 70 Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 71 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 72 No audio Board ( 3.5V,12V,20V MAIN B/D or 24V…) Replace Power Board and repair parts ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 73 Contact with signal distributor Tuner soldering Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 74 RGB/ Check external External device device and Replace Main B/D HDMI/DVI /Cable error cable normal ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 75 Main B/D normal? External Input, Component, HDMI/ RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 76 Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 77 Power off by unknown status except listed case "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 78 Cancel OFF Replace Power Board and repair parts Check Disconnection Replace MAIN Board Speaker disconnection Replace Speaker ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 79 Normal signal error) other external audio? Check and fix device external device Check and fix external device ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 80 If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 81 Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 82 (For models without any fix information, in “Part related to nose” in the Owner’s provide the description) Manual. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 83 ☞A28 Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 84 Inverter/ Module Exchange Module itself (1) A-4/5 Exchange Module itself (2) A-5/5 Continue to the next page ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 85 Remote controller operation checking remote controller, key error method D. VCOM Adjustment Sequence of the Vcom adjustment ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 86 After turning on the power and disassembling the case, check with the naked eye, whether you can see light from 4 locations. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 87 ALEF LED P202 P203 6~10 6~10 Error Error Inverter ON Inverter ON A-dim A-dim P-dim P-dim Edge LED ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 88 (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 89 Lamp : A-Dim LED : N.C PWM Dim #1 Error-out • Lamp SCANNING Model : PWM Dim #2 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 90 - signal test select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 91 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 92 <ALL MODELS> As the part connecting to the external input, check the screen condition by signal ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 93 1. Check the signal strength or check whether the screen is normal when the external device is connected. 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 94 Check Link Cable (LVDS) reconnection condition date <ALL MODELS> Check the contact condition of the Link Cable, especially dust or mis insertion. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 95 Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 96 Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack A - 1/5 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 97 Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION A - 2/5 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 98 Appendix : Exchange PSU(LED driver) No Light Dim Light Dim Light Dim Light No picture/Sound Ok A - 3/5 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 99 Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage A - 4/5 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 100 In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect A - 5/5 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 101 Front LED control : Menu Option Power Indicator Standby light ON ST-BY condition: Red Power ON condition: white ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 102 Lamp : A-Dim LED : N.C PWM Dim #1 Error-out • Lamp SCANNING Model : PWM Dim #2 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 103 Lamp : A-Dim LED : N.C PWM Dim #1 Error-out • Lamp SCANNING Model : PWM Dim #2 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 104 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 105 1. Press the MENU button on the remote controller 2. Select the AUDIO function of the Menu 3. Select TV Speaker from Off to On ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 106 ③ Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal, the speaker is normal. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 107 4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 108 ■ Push the OK key to store the value. Then the message “Saving OK” is pop. ■ Press the exit key to finish V-COM adjustment. ⓒ LG Electronics. Inc.2009 Copyright ⓒ 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

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