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LG 47LE5500-MA Service Manual

Chassis : ll03e
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LED LCD TV
SERVICE MANUAL
CHASSIS : LL03E
MODEL : 47LE5500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL63283506 (1003-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
/I
P
OK
MENU
INPUT
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
47LE5500-MA
Printed in Korea

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  • Page 1 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 : LL03E MODEL : 47LE5500 47LE5500-MA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MENU INPUT P/NO : MFL63283506 (1003-REV00) Printed in Korea...
  • Page 2 CONTENTS CONTENTS ....................2 SPECIFICATION ..................3 ADJUSTMENT INSTRUCTION ..............7 EXPLODED VIEW .................. 17 SVC. SHEET ....................Copyright LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...
  • Page 3 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 0.4845 (H) x 0.4845 (V) LC470EUH-SCA1/2 - LE5500, LE7500 Back Light CCFL/Edge-LED/IOP-LED Display Colors 1.06 B(true) colors (10-bit) Coating 3H(Hard coating), Anti-glare Copyright LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 84.75 VESA(WXGA) 1280*1024 63.668 59.895 109.00 SXGA Only FHD model 1920*1080 66.587 59.934 138.50 WUXGA (Reduced Blanking) Only FHD model Copyright LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
  • Page 6 79.5 VESA(WXGA) 1360 768 47.72 59.799 84.62 VESA(WXGA) 1280 1024 63.595 60.00 108.875 SXGA 1920 1080 66.647 59.988 138.625 WUXGA Copyright LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 9) Motion Remote controller Inspection 10) 3D Function test 11) Outgoing Condition Configuration 12) Sound spec 13) Factoring Option Data input. Copyright LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 23575 23575 Tool Option3 56332 56332 56332 56332 Tool Option4 28972 28972 28972 28972 Tool Option5 1843 1842 1842 1842 Copyright LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 Caution : Don’t connect HDMI and RGB(D-SUB) cable when downloading the EDID. If the cables are connected, Downloading of edid could be failed. Copyright LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 00 10 [Adjust 480i&1080p Comp1] xb 00 06 [Change input source to RGB(1920x1080)] ad 00 10 [Adjust 1920x1080 RGB] aa 00 90 End adj. Copyright LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...

  • Page 11: Lcd Tv

    “wb 00 ff”, and Adj. offset if need (EBTxxxxxxxx) for Option value. * Luminance min value is 150cd in the Cool/Medium/Warm mode( For LCD) Copyright LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 First decrease B, so make x a little more than the target. ii) Adjust x value by decreasing the G Copyright LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 49.75 SECAM V/UHF R-34 C 34 575.25 11505 V/UHF E-21 C 21 471.25 9425 V/UHF D-04 C 04 77.25 1545 Copyright LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 2) Push “OK” or “Enter” key, you can see the Cursor on screen. 3) Push “Vol+” or “STOP” key, Disconnect Pairing. 5) With 3Dright-glass, Like below figure.(Center is Blue) Copyright LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 (Ex : V2.02) • Select “Yes” 2. Connection Plug-in USB Memory stick to the USB input of the set. Copyright LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 • Push “ IN-START” button on service remote Controller • Check Information Bluetooth S/W version will appear on OSD Service Menu. Example : Bluetooth SW version 2.05 Copyright LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 +3.3V_NORMAL 00 : No ECC HIGH PWIZ Pannel T-con 01 : 1 ECC Bit NC_11 I/O0 NAND_DATA[0] with LG FRC 10 : 4 ECC Bit 11 : 8 ECC Bit NC_12 NC_19 NAND_IO[4] : CPU Endian (0) NC_13 NC_18 0 : Little Endian...
  • Page 19 When usding FUNDMENTAl then series R = 0 ohm and CL = 8 pF IC100 54MHz X-TAL When usding Dip-type X-tal then series R = 22 ohm and CL = 12 pF LGE3556C (C0 VERSION) FE_TS_DATA_CLK PKT0_CLK LVDS_TX_0_DATA0_P LVDS_TX_1_DATA4_N013:E7;035:AK20 FE_TS_SERIAL PKT0_DATA LVDS_TX_0_DATA0_N LVDS_TX_1_DATA4_P013:E7;035:AK19...
  • Page 20 D1.2V D3.3V Place here for common circuit with ATSC D1.2V +1.8V_AMP +1.8V_HDMI +3.3V_NORMAL A3.3V C245 C255 C377 C375 C263 C373 C267 C289 C291 L111 C383 C246 C378 C376 C259 C374 C366 C266 C288 C290 4.7uF 1000pF 0.01uF 0.1uF 4.7uF 1000pF 0.01uF 0.1uF 10uF...
  • Page 21 D1.8V A1.2V IC100 D1.8V LGE3556C (C0 VERSION) 0.1uF C403 DDR_BVDD0 0.1uF C404 DDR_BVDD1 DDR_BVSS0 DDR_BVSS1 DDR_PLL_TEST R411 DDR_PLL_LDO DDR01_CKE DDR_VTT DDR01_CKE R412 IC400 IC402 DDR_COMP DDR1_DQ[0-7] DDR01_ODT NT5TU128M8DE_BD NT5TU128M8DE_BD DDR01_ODT DDR0_DQ[0-7] 004:B6 004:B5 DDR_EXT_CLK DDR01_A[0-3,7-13] 004:A7;004:F4 DDR0_CLK 004:C7;004:C4 004:A7;004:C4 DDR0_CLK DDR1_CLK DDR0_CLK R407...
  • Page 22 COMPONENT1 COMPONENT2 JK1100 COMPONENT1 PPJ237-01 +3.3V_NORMAL <Practically COMP2> [RD1]E-LUG +3.3V_NORMAL R1101 NON_SCART R1104 [RD1]O-SPRING AV_CVBS_DET C1100 9:G3 R1112 D1100 100pF 5.6V [RD1]CONTACT SCART1_DET ==> COMP1_DET DTV/MNT_V_OUT TP1100 R1116 D1115 C1112 C1101 1uF 5.6V 100pF REAR_AV_R_IN [WH1]O-SPRING SC1_FB C1103 TP1101 10:B5;AF24 D1101 100pF 5.6V...
  • Page 23 CAN H-NIM/NIM TUNER for TAIWAN TU2600-*5 TU2600-*1 TU2600-*2 TDTR-T035F +5V_TU TDVJ-H031F TDVJ-H001F Taiwan/Brazil_H Latin_Tuner_H Latin_Tuner_V RF_S/W_CTL ANT_PWR[OPT] ANT_PWR[OPT] L2600 BST_CTL BLM18PG121SN1D BST_CNTL BST_CNTL +B1[5V] R2615 NC_1[RF_AGC] Q2601 R2621 NC[RF_AGC] NC[RF_AGC] ISA1530AC1 NC_2 R2618 RF_SWITCH_CTL R2602 2.2K SCLT TU2600 SDAT R2623 TDTR-T055F R2605 Q2604...
  • Page 24 PANASONIC (ISDB-T) MN884433 ISDB_DEMOD +1.2V_DE +3.3V_DE R2807 FE_TS_VAL_ERR ISDB_DEMOD ISDB_DEMOD ISDB_DEMOD R2808 ISDB_DEMOD ISDB_DEMOD ISDB_DEMOD C2812 C2815 C2816 C2819 C2821 FE_TS_SYNC 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF ISDB_DEMOD R2809 FE_TS_SERIAL ISDB_DEMOD (FE_TS_SERIAL) ISDB_DEMOD C2810 R2810 0.1uF FE_TS_DATA_CLK +3.3V_DE AMP_I2C HAVE PULL-UP VSS_1 VSS_9 R2811...
  • Page 25 Panasonic Demodulator Power(3.3V,1.2V) ISDB_POWER IC2900 SC4215ISTRT +3.3V_DE +3.3V_DE +3.3V_NORMAL NC_1 +1.2V_DE ISDB_POWER ISDB_POWER R2903 L2900 BLM18PG121SN1D 5.1K ISDB_POWER ISDB_POWER ISDB_POWER ISDB_POWER C2902 C2903 C2900 C2901 0.1uF ISDB_POWER 10uF ISDB_POWER NC_2 NC_3 C2904 C2905 0.1uF 0.1uF 0.1uF 22uF IF AGC SELECTION IF_AGC_ISDB TP2901 IF_AGC_SEL...
  • Page 26 USB2 OPTION +3.3V_NORMAL USB / DVR Ready IC2202 +5V_USB AP2191SG-13 R2220 L2202 1 GND 4.7K MLB-201209-0120P-N2 OUT_2 2 IN_1 120-ohm OUT_1 3 IN_2 C2220 C2218 C2222 4 EN 10uF 100uF R2226 0.1uF EAN60921001 2.7K USB_CTL1 KJA-UB-4-0004 JK2201 /USB_OCD1 R2225 USB_DM1 USB_DP1 R2202 D2201...
  • Page 27 BLUETOOTH +3.3V_NORMAL BCM BT MODULE C1898 BLUETOOTH FOR BCM BCM BT MODULER1886 BCM BT MODULE R1887 R1888 BT_ON/OFF 4.7K 2SC3052 Q1800 BCM BT MODULE BCM BT MODULE BCM BT MODULE C1899 22uF R1896 BT_DM BCM BT MODULE D1899 CDS3C05HDMI1 5.6V BCM BT MODULE R1897 BT_DP...
  • Page 28 CI POWER ENABLE CONTROL CI CONTROL BUFFER /CI_SEL CI_A[0] CI_A[1] EBI_CS CI_A[2] CI_A[3] EBI_WE CI_A[4] CI_5V_CTL CI_A[5] CI_A[6] 007:H7 [GP27] CI_A[7] CI_A[8] CI_A[9] CI_A[10] CI_A[11] CI_A[12] CI_A[13] EBI_RW CI_A[0-13] 007:E6 CI_A[14] /CI_CD1 CI_OUTCLK,CI_OUTDATA[0-7],CI_OUTSTART,CI_OUTVALID CI_OUTDATA[4] CI_OUTDATA[5] DVB-CI PULL-DOWN (Near CI Slot) CI_OUTDATA[6] CI_OUTDATA[7] CI_OUTCLK...
  • Page 29 [Right FFC Connector] [LEFT FFC Connector] (60Pin Mini-LVDS) (60Pin Mini-LVDS) P7500 P7501 104060-6017 104060-6017 TM240Hz TM240Hz 0 NON_GIP R7510 GCLK4/OPT_P VGH_M GMA1 Z_OUT R7511 0 MINI_LVDS GMA1 Z_OUT (+25V) GMA3 CLK1 GMA3 CLK1 GMA4 CLK2 GMA4 CLK2 GMA6 CLK3 GMA6 CLK3 R7512 0 NON_GIP...
  • Page 30 [To MASTER LED DRIVER] P7900 12507WR-10L L_VS M0_MOSI M0_SCLK +3.3V_NORMAL M1_MOSI M1_SCLK R7907 R7908 R7909 3.3K 3.3K 3.3K Edge Edge Edge R7904 S_CS_N R7905 S_MOSI R7906 S_SCLK C7901 C7903 C7905 C7907 C7909 C7911 C7913 C7914 100pF 100pF 100pF 100pF 100pF 100pF 100pF 100pF...
  • Page 31 FROM LIPS & POWER B/D L_VS R_VS MO_SCLK +3.5V_ST RT1P141C-T112 M2_SCLK 15V-->3.6V +12V +3.5V_ST Q8002 MO_MOSI 20V-->3.5V +3.5V_ST R8068 M2_MOSI 24V-->3.48V 100K R8004 +24V 12V-->3.58V 4.7K NORMAL_26~52 IC8007 R8000 P8000 +5V_NORMAL ST_3.5V-->3.5V NCP803SN293 FW20020-24S RL_ON Q8000 2SC3052 R8081 POWER_DET Power_DET RESET L8005 400Hz_VSYNC/42_47_LOCAL DIMMING...
  • Page 32 +3.5V_ST MICOM_DOWNLOAD 15pF 15pF R8146 C8101 C8102 10MHz MICOM_XTAL_EPSON X8100 X8101-*1 32.768KHz 15pF 15pF R8138 C8105 C8106 R8139 X8101 32.768KHz MICOM_XTAL_DAISHINKU R8175 4.7M +3.5V_ST for Debugger SW8100 JTP-1127WEM P8100 +3.5V_ST C8103 12505WS-12A00 0.1uF C8108 0.1uF MICOM_RESET NEC_ISP_Tx NEC_ISP_Rx R8186 1/16W OCD1A EDID_WP OCD1B...
  • Page 33 +3.5V_ST EYEQ R8225 IR & KEY D8204 NEC_EEPROM_SCL P8200 CDS3C05HDMI1 5.6V 12507WR-12L R8213 R8211 C8213 1000pF L8200 R8209 BLM18PG121SN1D EYEQ KEY1 R8226 L8201 R8210 D8201 BLM18PG121SN1D NEC_EEPROM_SDA 5.6V D8205 KEY2 C8214 AMOTECH CDS3C05HDMI1 1000pF C8206 C8207 5.6V 0.1uF 0.1uF D8200 5.6V AMOTECH +3.5V_ST...
  • Page 34 * HDMI CEC +3.3V_HDMI +3.3V_NORMAL JACK_GND D8302 D8308 KRC104S HDMI_HPD_4 KRC104S HDMI_HPD_1 L8300 5.5V 5.5V Q8307 Q8305 BLM18PG121SN1D R8321 R8311 5V_HPD4 SHIELD 5V_HPD1 4.7K 4.7K KRC104S KRC104S Q8306 Q8302 5V_HDMI_4 C8324 5V_HDMI_1 +3.5V_ST R8316 R8302 HP_DET 0.1uF HP_DET D8311 D8305 R8317 JP8306 R8307...
  • Page 35 RGB PC IC8401-*1 R1EX24002ASAS0A IC8400 +5V_NORMAL 74F08D +5V_NORMAL D8409 ENKMC2838-T112 C8401 0.1uF R8401 RGB_EDID_RENESAS RGB_HSYNC IC8401 RGB_VSYNC M24C02-RMN6T R8402 R8420 8 VCC R8422 7 WC EDID_WP R8416 6 SCL RGB_DDC_SCL 5 SDA R8415 RGB_DDC_SDA 0IMMR00014A RGB_EDID_ST R8406 D8410 CDS3C05HDMI1 5.6V R8405 +3.3V_NORMAL D8408...
  • Page 36 ALL for SIDE_GENDER option SIDE CVBS PHONE JACK (New Item Developmen) SIDE_AV_CVBS R8603 D8608 C8605 5.1V 47pF JK8600 KJA-PH-1-0177 D8609 5.1V M5_GND +3.3V_NORMAL R8605 M3_DETECT SIDE_AV_DET R8608 D8601 C8600 5.6V 100pF C8607 R8606 SIDE_AV_L_IN C8611 R8601 D8602 100pF 5.6V 470K C8606 R8607 SIDE_AV_R_IN...
  • Page 37 WIRELESS READY MODEL JK8700 KJA-PH-3-0168 Wireless power VCC[24V/20V/17V]_1 VCC[24V/20V/17V]_2 VCC[24V/20V/17V]_3 VCC[24V/20V/17V]_4 VCC[24V/20V/17V]_5 +24V VCC[24V/20V/17V]_6 +3.3V_NORMAL DETECT R8704 C8700 C8701 INTERRUPT 0.1uF TP8700 2.2uF GND_1 R8714 RESET TP8701 R8705 Q8701 R8713 GND_2 2.2K L8700 WIRELESS_DETECT AO3407A I2C_SCL R8702 WIRELESS_SCL MLB-201209-0120P-N2 I2C_SDA WIRELESS_PWR_EN WIRELESS_SDA Q8700...
  • Page 38 +24V +24V_AMP L8803 MLB-201209-0120P-N2 C8827 0.1uF +1.8V_AMP +3.3V_NORMAL CCFL = 20V IC8800 AP1117E18G-13 Edge_LED 32~47 Inch = 20V ADJ/GND Vd=1.4V 120 mA 55 Inch & IOP Module = 24V C8800 C8803 C8802 0.1uF 0.1uF 10uF +24V_AMP SPK_L+ D8800 1N4148W R8812 R8819 L8805 100V...
  • Page 39 +1.5V_MEMC D1.5V_DDR3 D1.5V_DDR3 DDR3 1.5V By CAP - Place these Caps near Memory L8900 C8902 C8904 10uF 0.1uF +3.3V_MEMC Close to DDR Power Pin +12V +3.3V_MEMC IC8903 AOZ1072AI L8905 3.6uH PGND LX_2 L8902 D1.5V_DDR3 CIC21J501NE D1.5V_DDR3 NR8040T3R6N LX_1 POWER_ON/OFF2_2 AGND C8942 C8944 22uF...
  • Page 40 IC9301 IC9301 +1.8V_RXVDD +1.8V_PLL LG5111 LG5111 +1.8V_RXVDD C9312 C9318 C9324 C9331 C9338 C9345 C9362 C9368 C9304 C9307 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 27pF 27pF RXA0+ RRXA0+ R1A1P T1A1P RXVDD_18_1 RX_GND_1 RXA0- R1A1M T1A1N RRXA0- RXVDD_18_2 RX_GND_2 X9300 Close to LG5111 LVDS Input PIN 25MHz RXA1+...
  • Page 41 C9038 C9039 FRC OPTION HIGH 22pF 22pF NON_MIRROR MIRROR X9000 LVDS MINI_LVDS 12MHz Serial Flash NON_GIP R9029 SCAN_OFF SCAN_ON NON_LD +3.3V_MEMC +3.3V_MEMC IC9000-*1 +3.3V_MEMC R9017 R9023 W25X40BVSSIG R9018 R9024 DO[IO1] HOLD R9019 R9025 DI[IO0] IC9000 MX25L4005CM2I-12G SW9000 R9020 R9026 URSA3_FLASH_WINBOND_NEW JTP-1127WEM R9000 8 VCC...
  • Page 42 D9103 [LEVEL Shift Block] MMSD4148T1G VDD_LCM [POWER Block] (+16V) VCC_LCM 100V * Voltage Target (+3.3V) CHECK Value!! VDD_LCM = 16.25V 28.50V TCON_42_FHD To reduce R9156 R9165 C9134 C9138 -5.35V 150K Audible noise R9108 0.1uF C9153 To reduce TCON_42_FHD 100uF C9150 R9182 Audible noise C9142...
  • Page 43 42_FHD 32_FHD 37_FHD 91 or 95 R9129-*1 R9130-*1 R9144-*1 R9129-*2 R9130-*2 R9144-*2 91 or 95 220K 220K Sheet Sheet TCON_32_FHD TCON_32_FHD TCON_32_FHD TCON_37_FHD TCON_37_FHD TCON_37_FHD R9131-*2 R9145-*2 R9131-*1 R9145-*1 150K 270K TCON_37_FHD TCON_32_FHD TCON_37_FHD TCON_32_FHD HVDD HVDD HVDD R9156-*1 R9165 OPEN R9126-*1 150K 510K...
  • Page 45 LCD TV Repair Guide `10 years New Models < Applicable Model > xxLE5500,xxLE7500, xxLE8500 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 46 Overview for ’10 Broadband Model (Hardware) Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 47 Cutting-Edge LED (Edge) Full LED Slim (IOP) Cutting-Edge Picture Quality Picture Quality 100Hz 200Hz 400Hz LED / Hz LED / Hz Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 48 192 * 4 packages/block = 768EA Local 216 * 4 packages/block = 864EA Dimming Full LED 240 * 5 packages/block = 1200EA 216 Local Dimming Blocks Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 49: Edge Led

    - 42” 228 structure Model LE7500, LE5500 LED Array is on the Top & Bottom of Module Local Dimming 12 Local Dimming Blocks Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 50 HDMI switch (4:1) 100Hz Audio AMP (10W+10W) LG5111(Local Dimming Processor +LCD Timing Controller one Chip) Gamma, Vcom, Voltage generater For LCD Module Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 51 TU_CVBS/TU_SIF FE_TS_SERIAL/SYNC/VAL_ERR/DATA_CLK TUNER SCL1/SDA1 ATV/DTV HNIM/FNIM IF_AGC (TU2701) TUNER ISDB DEMOD (HNIM) MN884433 Cable IF_N / P IC2800 TU2600 Brazil OPT Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 52 AMP_SCL/SDA Digital AMP (NTP7000) P8800 IC8801 (4pin) AUDIO SPDIF_OUT JK8400 AUDIO OUT [SPDIF] HP_L/R_+/- HP_L/ROUT KA4558D JK1101 AUDIO OUT [EARPHONE] IC1100 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 53 DDR0 Data[0:15] NAND04G_B2DN MT47H128M8HQ DDR0 Address[0:13] IC101 (1GBit) IC400/401 DDR1 Address[0:13] DDR2 SDRAM MT47H128M8HQ DDR1 Data[0:15] (1GBit) IC402/403 SCL3/SDA3 M24M01-HRMN6TP 1Mbit IC102 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 54 USB2512 TDA9996HL (IC800) 0xc0 (IC2201) (IC800) 0xc0 NVRAM P-Gamma NVRAM P-Gamma M24M01 MAX9668ETP M24M01 MAX9668ETP (IC102) (IC601) 0xe8 (IC102) (IC601) 0xe8 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 55 Audio Amp. NTP7000 USB2512 NTP7000 (IC501) (IC1002) (IC2201) (IC501) (IC1002) NVRAM FRC(URSA3) NVRAM FRC(URSA3) M24M01 MST7378 M24M01 MST7378 (IC102) (IC1300) (IC102) (IC1300) Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 56 LE55 & LE75 edge & LE85 IOP LED Backlight] * LE85 series have TM240Hz function in LED Driver board of module. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 57 Main / PSU cable Main / Module LVDS cable LED driver / Module cable LCD Module BT shield cable SPK cable LOGO/Touch/IR cable Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 58 Main / Module LVDS cable LED driver / PSU cable LCD Module BT shield cable(not in picture) SPK cable LOGO/Touch/IR cable Local dimming signal cable Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 59 (Main / LED driver master) 8 connection cables for each BLU Ass’y Local dimming signal cable (Main / LED driver slave) Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 60 Interconnection – sub PCB SPK unit IR/Sensor Logo To Main LOGO/Touch/IR cable Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 61 Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 62 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 63 Power No Video/ replace voltage? No audio Board ( 5V,12V,20V MAIN B/D or 24V…) Replace Power Board and repair parts Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 64 Check Normal Contact with signal distributor Tuner soldering Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 65 Request repair for external device/cable RGB/ Check external External device Replace Main B/D HDMI/DVI device and /Cable error cable normal Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 66 (Check normal operation of Main B/D normal? External Input, Component, HDMI/ RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 67 Measure voltage of each output of Power B/D Normal? ※ Normal Replace Main B/D voltage? Close Normal Check ST-BY 5V voltage? ☞A18 Replace Power B/D Replace Power Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 68 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 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 69 Speaker off Power Board Cancel OFF Replace Power Board and repair parts Check Disconnection Replace MAIN Board Speaker disconnection Replace Speaker Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 70 External Input Connect and check Normal signal error) other external audio? Check and fix device external device Check and fix external device Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 71 (Power B/D don’t have problem) If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 72 - S/W Version RGB,HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 73 ※ Describe the basis of the description (For models without any fix information, in “Part related to nose” in the Owner’s provide the description) Manual. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 74 Replace module Adjust VCOM exterior damage damage ☞A28 Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 75 A-3/5 Other : PSU Inverter/ Module Exchange Module itself (1) A-4/5 Exchange Module itself (2) A-5/5 Continue to the next page Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 76: A18

    D. Function error_ No response in Remote controller operation checking remote controller, key error method D. VCOM Adjustment Sequence of the Vcom adjustment Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 77 After turning on the power and disassembling the case, check with the naked eye, whether you can see light from 4 locations. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 78 Inverter ON PWM Dim #1 Inverter ON (Edge LED:PWM Dim#1) Error * 14 : For LE85 GND Edge LED 32/42/47” IOP 55” Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 79 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re- enter the value after replacing the MAIN BOARD. enter the value after replacing the MAIN BOARD. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 80: Pin Layout (24P) Power

    LE : NC IOP : PWM Dim #1 Edge LED 32/42/47” LE : PWM Dim #1 IOP : NC Error-out IOP 55” Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 81 MENU - red key(customer support - signal test select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 82 <ALL MODELS> 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 83 Content LCD TV connection diagram (1) date As the part connecting to the external input, check the screen condition by signal Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 84 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. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 85 Check Link Cable (LVDS) reconnection condition date <32/42/47/55LE7500_LE5500> Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 86 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!) Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 87 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack A - 1/5 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 88 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION A - 2/5 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 89 Appendix : Exchange PSU(LED driver) No Light Dim Light Dim Light Dim Light No picture/Sound Ok A - 3/5 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 90 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage A - 4/5 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 91 Un-repairable Cases In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect A - 5/5 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 92 Check front display LED date Front LED control : Menu Option Power Indicator Standby light ON ST-BY condition: Red Power ON condition: white Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

  • Page 93: Table Of Contents

    LE : NC Edge LED 32/42/47” IOP : PWM Dim #1 LE : PWM Dim #1 IOP : NC Error-out IOP 55” Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 94 Edge LED 32/42/47” LE : NC IOP : PWM Dim #1 LE : PWM Dim #1 IOP : NC Error-out IOP 55” Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 95 Entry method 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 96 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 Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 97 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. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 98 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. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 99 ■ Push the OK key to store the value. Then the message “Saving OK” is pop. ■ Press the exit key to finish V-COM adjustment. Copyright ⓒ 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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