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LG 32LE7500-SA Service Manual
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LG 32LE7500-SA Service Manual

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LED LCD TV
SERVICE MANUAL
CHASSIS : LJ03E
MODEL : 32LE7500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL63261801 (1006-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
32LE7500-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 32LE7500-SA

  • Page 1 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 : LJ03E MODEL : 32LE7500 32LE7500-SA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL63261801 (1006-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    CONTENTS ....................2 PRODUCT SAFETY ................. 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: Product Safety

    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 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

    3. Test method 1) Performance: LGE TV test method followed 2) Demanded other specification - Safety: CE, IEC specification - EMC:CE, IEC Copyright LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 Temp : 0 ~ 40 deg Humidity : ~ 80 % Storage Environment Temp : -20 ~ 60 deg Humidity : -85 % Copyright LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 0.313 0.315 0.327 0.329 0.331 Color Distortion, DG 10.0 Color Distortion, DP 10.0 Color S/N, AM/FM 43.0 Color Killer Sensitivity Copyright LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 0.313 0.315 0.327 0.329 0.331 Color Distortion, DG 10.0 Color Distortion, DP 10.0 Color S/N, AM/FM 43.0 Color Killer Sensitivity Copyright LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 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. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 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. - 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 - It will operate in the DOS mode. - HDMI-4 EDID table (0x04, 0x2A) Pic.3) For write EDID data, setting Jig and another instruments. • EDID data for LJ03B/D/E/R Chassis (Model name = LG TV) - HDMI-1 EDID table (0x04, 0x5A) - Analog (RGB) EDID table (0x1D)
  • 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, ∆uv=0.000, x=0.276 y=0.283 - MEDIUM : T=9300K, ∆uv=0.000, x=0.285 y=0.293 - WARM : T=6500K, ∆uv=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 “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 G PIO _11 , GPIO_ 11, GPIO_39 I R_I NT : GPIO_ 23 IC 100 I R1_ IN : GPIO_ 25 LG E35 56C (C0 VE RSIO N) I R2_ IN : GPIO_ 29 CI_A[0-1 3] I R_O UT : GPIO_ 26...
  • Page 22 Whe n usding FUNDMEN TAl then series R = 0 o hm and C L = 8 pF IC1 00 54M Hz X-T AL LGE 355 6C ( C0 VERS ION ) Whe n usding Dip-typ e X-tal then se ries R = 22 ohm a nd CL = 12 pF FE_T S_DATA_CLK PKT0_CL K LV DS_TX_0_ DATA0_P...
  • Page 23 FOR ES D C20 08 C 2007 0.1 uF 0 .1uF 1 6V D3 .3V D1.8V IC 100 LG E35 56C (C0 VER SIO N) 26p age : TUNE R(H ALF NIM) AG28 AE18 C 216 C 268 C 371 C370 C369...
  • Page 24 D1. 8V A 1.2V IC100 LGE3556C ( C0 VERSION ) D1 .8V 0.1uF C4 03 D DR_BVDD0 0.1uF C4 04 D DR_BVDD1 D DR_BVSS0 D DR_BVSS1 DDR_ PLL_TEST R411 DDR _PLL_LDO DDR01_CK E DDR _VTT D DR01_CKE R 412 2 40 IC 400 I C402 DDR_COMP...
  • Page 25 COM PON ENT1 COM PON ENT2 JK 11 00 COMP ONEN T1 PP J2 37 -0 1 +3. 3V_ NORMAL <Pra ctic al ly COMP 2> +3.3 V_NORMAL [ RD 1] E- LU G R1 101 N ON _SC ART R1104 10 K [ RD 1] O- SP R I NG...
  • Page 26 CAN H-NIM/NIM TUNER for TAIWAN TU2600 -*5 TU 2600-*1 TU26 00- *2 TDTR-T 035F +5V_TU TD VJ-H031F TDVJ -H0 01F Taiwa n/Brazil _H Latin_ Tuner_H La tin_Tune r_V RF_ S/W_CTL AN T_PWR[OP T] ANT_PW R[OPT] L 2600 BST _CTL BLM18PG 121SN1D BS T_CNTL BST_CN TL +B1 [5V]...
  • Page 27 PANASONIC (ISDB-T) MN884433 ISDB_D EMOD +1.2V_D E +3.3V_DE R 2807 FE_TS_VA L_ERR ISDB_DE MOD I SDB_DEMO D ISDB _DEMOD R 2808 ISDB_DE MOD IS DB_DEMOD ISDB_ DEMOD FE_TS_SY NC C281 2 C2815 C2816 C 2819 C2 821 0.1u F 0.1uF 0.1uF 0 .1uF 0.
  • Page 28 Panasonic Demodulator Power(3.3V,1.2V) ISDB_P OWER IC290 0 SC421 5IS TRT +3. 3V_ DE +3 .3V_DE + 3.3V_NO RMA L NC_1 + 1.2V_DE ISD B_POWER ISDB_P OWER R2903 L290 0 BLM18PG 121SN1D 5.1K ISDB _POWER ISD B_POWER ISDB_POW ER I SDB_POW ER C2902 C2903 C2900...
  • Page 29 USB2 OPTION USB / DVR Ready +3. 3V_NOR MAL IC2202 +5V_ U SB AP 21 91 SG -1 3 R 2220 L220 2 1 GND 4 .7K MLB-2 0 1209 -0120P -N2 O UT_ 2 2 IN_ 1 1 20- ohm O UT_ 1 IN_ 2 C22 18...
  • Page 30 BLUET OO TH +3. 3 V_NORM AL BCM BT MODULE C1898 BCM BT MODULER1886 BCM BT MODULE BL UETOOTH F OR BCM R1887 R1888 BT_ON/OFF 4.7K 2SC3052 Q1800 BCM BT MODULE BCM BT MODULE BCM BT MO DULE C18 9 9 22u F R 1896 B T_DM...
  • Page 31 C I PO WER ENA BLE CO NTRO L CI C ONT ROL BUF FER CI_A[0 ] /CI_ SEL CI_A[1 ] EBI_ CS CI_A[2 ] CI_A[3 ] EBI_ WE CI_A[4 ] CI_5V_ CTL CI_A[5 ] 007 :H7 [GP27] CI_A[6 ] CI_A[7 ] CI_A[8 ] CI_A[9 ]...
  • Page 32 [Ri ght FF C Co nne ctor ] [L EFT FFC Co nne ctor ] (6 0Pi n M ini- LVD S) ( 60P in M ini -LV DS) P7500 P7501 10 4060-601 7 10 4060-601 7 TM240Hz TM240Hz 0 NO N_GIP R7510 GCLK4 /OPT_P VGH_M...
  • Page 33 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS GP2 _Sat urn 7M V er. 1. 0 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. In terf ace fo r LG 511 1...
  • Page 34 OP T Q8005 2SC3052 R8039 R80 29 CMO_ PSU AUO_P SU R8030 BCM core 1.2V volt A_D IM R803 1 0 LG D_IOP A_D IM_LGD R8084 R8021 AUO_ PSU/SHAR P_PSU_60 R8 027 R802 2 R8044 PWM_D IM S CAN_PSU PWM_NON _OPC MAX 3.1A...
  • Page 35 +3.5V_S T 50 V MICOM_D OWNLOAD 15p F 15pF R8146 C810 1 C 8102 10 MHz X8 100 5 0V 15 pF 15pF R8138 C81 05 C8106 R813 9 32. 768KHz X 8101 R8175 4.7M +3.5V_ ST GN D for Deb ugge r S W8100 JTP -1127WEM +3.
  • Page 36 + 3.5V_ST EYE Q IR & KEY R8 225 10 0 D8204 NEC_EEPR OM_SCL P8200 CDS3C 05HDMI1 5.6V 12 507WR-12 L R82 11 R82 13 10 K C821 3 1000 pF L8200 R82 09 BLM1 8PG121SN 1D EYE Q KEY1 R8 226 10 0 L 8201...
  • Page 37 * HDM I CEC +3.3 V_HDMI +3.3V _NORMAL JA CK_GND D8302 D8308 KRC1 04S HDMI _HPD_4 KRC1 04S HDMI _HPD_1 L83 00 5.5V 5.5V Q83 07 Q83 05 BLM18PG 121SN1D R8321 R8311 GN D 5V_ HPD4 S HIELD 4.7K 5V_ HPD1 4.7K KRC104S KRC104S...
  • Page 38 RGB PC I C8 40 1 -* 1 +5V_NOR MAL R 1 E X 24 00 2 AS A S0A IC8 400 74F 08D +5V _NORMAL V C C D8 409 ENKMC28 38-T112 S C L D EV C8401 V S S S D A 0.1uF R 8401...
  • Page 39 ALL for SIDE_GENDER option SI DE C V BS P HONE JA C K (Ne w I tem Dev elo pme n) S IDE_AV_C VBS R8603 D8 608 C8605 5 .1V 47pF JK8 600 KJA-PH- 1-0177 D8 609 5 .1V M5_GND +3.3 V_NORMAL R8605...
  • Page 40 WIRELESS READY MODEL J K 8700 KJA-PH -3-01 68 Wireless power VC C[2 4V/20V /17V] _1 VC C[2 4V/20V /17V] _2 VC C[2 4V/20V /17V] _3 VC C[2 4V/20V /17V] _4 VC C[2 4V/20V /17V] _5 +24V VC C[2 4V/20V /17V] _6 DETE CT +3.
  • Page 41 +24V +24V_ AMP L88 03 ML B-201209 -0120P-N 2 C8827 0.1uF +1 .8V_AMP +3.3V_N ORMAL C CFL = 2 0V IC8800 AP 1117E18G -13 Ed ge_L ED 32~ 47 I nch = 2 0V Vd=1.4V ADJ/ GND 120 mA 55 Inc h & IOP Mo dul e = 24V C8 800 C8802 C8803...
  • Page 42 +1. 5V_MEMC D1 .5V_DDR3 D1 .5V_DDR 3 DDR3 1. 5V By C AP - P lace th ese Caps near Memory L89 00 C 8902 C8904 1 0uF 0.1uF 1 0V +3.3V_MEMC C lose to DD R Power Pi n +3.3V_ MEMC +12V IC8903...
  • Page 43 10uF 10uF (TM 240Hz, L E5500/7 500/8500 ) (TM2 40Hz, LE 5500/750 0/8500) R9 355 CO MP R9338 C930 8 [J TAG for LG 5111 ] 9.1K 2200 pF +3.3V_N ORMAL + 3.3V_NOR MAL R9302 R9 331 P910 1 3.3K 3.
  • Page 44 C9038 C9 039 FRC OP TIO N L OW HIGH 22pF 22 pF K1 4 NON _MIRROR MIRROR X90 00 LVD S MINI_L VDS T1 0 12M Hz Serial Flash R1 0 NON_GI P R90 29 SCA N_OFF SCAN_O N U1 0 NON_LD +3.3V _MEMC...
  • Page 45 [LEV EL Shi ft Bloc k] D9103 MMSD4 148T1G [POWER Block] VDD_LCM E N2 (+16V) VC C_LCM 100V * Vo lta ge T arg et (+ 3.3V) CH ECK Valu e!! VDD_ LCM = 16. 25V 28. 50V TCON_42 _FHD To redu ce R 9156 R 9165...
  • Page 46 42_FHD 32_FHD 37_FHD V GH VG L V GL V GH VG L 91 or 95 R9129-*1 R 9130-*1 R9144-* 1 R9129- *2 R9130-* 2 R9144 -*2 91 or 95 2 20K 220K Sheet Sheet TCON_32_ FHD TC ON_32_F HD TCON_32_ FHD TCON_3 7_FHD TCON_37 _FHD...
  • Page 48 TUNER SCL1/ SDA1 ATV/DTV HNIM/ FNIM IF_AGC TUNER (TU2701) ISDB DEMOD (HNIM) Cable MN884433 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 49 Digital AMP P8800 (NTP7000) (4pin) IC8801 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 50 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 51 (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 52 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...

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32le7500