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LG 55LX9500 Service Manual
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LG 55LX9500 Service Manual

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LED LCD TV

SERVICE MANUAL

CHASSIS : LT03R
MODEL : 55LX9500
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL63283608 (1007-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
55LX9500-DA
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 55LX9500

  • 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 : LT03R MODEL : 55LX9500 55LX9500-DA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL63283608 (1007-REV00) Printed in Korea...
  • Page 2 CONTENTS CONTENTS ....................2 SPECIFICATION ..................3 ADJUSTMENT INSTRUCTION ..............7 BLOCK DIAGRAM...................17 EXPLODED VIEW .................. 19 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 LC550MUT-SCA1 : LX9500 Pixel Pitch LC550MUT-SCA1 : LX9500 Back Light 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: Hdmi Input

    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: Adjustment Instruction

    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 Tool Ooption2 32279 32279 32279 Tool Ooption3 56636 56636 56636 Tool Ooption4 25004 25004 25004 Tool Ooption5 1979 1979 1979 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 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 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. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 The black cross-bar patterns moves from top-left to Bottom- right. If local dimming function does not work, a whole screen shows full white. 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 3) Without 3D-glasses, Like below figure. 4) With 3D left-glass, Like below figure. (Center is RED) 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 BLCOK DIAGRAM Copyright LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 Copyright LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...

  • Page 19: 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. - 19 - LGE Internal Use Only Only for training and service purposes...
  • Page 20 0 1 : 1 E C C B i t NC_11 I / O 0 NAND_DATA[0] with LG FRC 1 0 : 4 E C C B i t 1 1 : 8 E C C B i t NC_12...
  • Page 21 PStoPDF trial version. http://www.oakdoc.com W h e n u s d i n g F U N D M E N T A l t h e n s e r i e s R = 0 o h m a n d C L = 8 p F IC100 54MHz X-TAL LGE3556C (C0 VERSION)
  • Page 22 PStoPDF trial version. http://www.oakdoc.com D1.2V D3.3V P l a c e h e r e f o r c o m m o n c i r c u i t w i t h A T S C D1.2V +1.8V_AMP +1.8V_HDMI +3.3V_NORMAL...
  • Page 23 PStoPDF trial version. http://www.oakdoc.com D1.8V NON_3DTV A1.2V IC100 LGE3556C (C0 VERSION) D1.8V 0 . 1 u F C403 DDR_BVDD0 0 . 1 u F 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...
  • Page 24 PStoPDF trial version. http://www.oakdoc.com COMPONENT1 COMPONENT2 JK1100 COMPONENT1 PPJ237-01 +3.3V_NORMAL < P r a c t i c a l l y C O M P 2 > [RD1]E-LUG +3.3V_NORMAL NON_SCART [RD1]O-SPRING AV_CVBS_DET C1100 9:G3 100pF [RD1]CONTACT SCART1_DET ==> COMP1_DET DTV/MNT_V_OUT TP1100 D1115...
  • Page 25 PStoPDF trial version. http://www.oakdoc.com M o t i o n R e m o t e c o n t r o l l e r M o t i o n R e m o c o n I n t e r f a c e P1700 +3.3V_NORMAL +3.3V_NORMAL...
  • Page 26 PStoPDF trial version. http://www.oakdoc.com Sub AMP. SPK2_L+ D2100 3AMP OPT 1N4148W L2107 3AMP OPT 100V AD-9060 R2121 3AMP OPT 3AMP OPT 3 . 3 C2158 390pF C2164 3AMP OPT 0 . 4 7 u F C2155 C2146 3AMP OPT 0 . 0 1 u F 10uF C2159 SPEAKER2_L...
  • Page 27 PStoPDF trial version. http://www.oakdoc.com LG LOGO FOR LE9500 +5V_NORMAL +3.5V_ST 1/10W 1/10W P2200 12507WR-04L R2228 R2229 LED_B/LG_LOGO Q2200 2SC3052 D2200 CDS3C05HDMI1 5.6V THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_BCM_ATSC 0 9 / 1 0 / x x...
  • Page 28 PStoPDF trial version. http://www.oakdoc.com CAN H-NIM/NIM TUNER for TAIWAN TU2600-*5 TU2600-*1 TU2600-*2 TDTR-T035F +5V_TU TDVJ-H031F TDVJ-H001F T a i w a n / B r a z i l _ H L a t i n _ T u n e r _ V L a t i n _ T u n e r _ H RF_S/W_CTL ANT_PWR[OPT]...
  • Page 29 PStoPDF trial version. http://www.oakdoc.com 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 FE_TS_SYNC C2812 C2815 C2816 C2819 C2821 0 . 1 u F 0 . 1 u F 0 . 1 u F 0 .
  • Page 30 PStoPDF trial version. http://www.oakdoc.com Panasonic Demodulator Power(3.3V,1.2V) ISDB_BCD IC2900 AP2132MP-2.5TRG1 [ E P ] ISDB_BCD +3.3V_DE ISDB_BCD R2903-*1 +3.3V_DE R2904 +3.3V_NORMAL +1.2V_DE ISDB_SEMTECH ISDB_SEMTECH ISDB_POWER R2905 R2903 5.1K VOUT ISDB_POWER ISDB_POWER ISDB_POWER ISDB_POWER C2903 R2906 ISDB_POWER 10uF 10K ISDB_BCD ISDB_POWER VCTRL C2905 22uF...
  • Page 31 PStoPDF trial version. http://www.oakdoc.com 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 . 1 u F EAN60921001 2.7K USB_CTL1...
  • Page 32 PStoPDF trial version. http://www.oakdoc.com +3.3V_NORMAL BLUETOOTH BCM BT MODULE C1898 BLUETOOTH FOR BCM BCM BT MODULE R1886 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...
  • Page 33 PStoPDF trial version. http://www.oakdoc.com 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] C I _ A [ 0 - 1 3 ] 007:E6 EBI_RW CI_A[14]...
  • Page 34 PStoPDF trial version. http://www.oakdoc.com 3D IR +3.3V_NORMAL I n n e r _ E m i t t e r IC6900 P6900 +5V_NORMAL AP2191SG-13 R6902 12507WR-03L L6900 1 GND 4.7K MLB-201209-0120P-N2 OUT_2 2 IN_1 L6902 C6900 120-ohm OUT_1 3 IN_2 C6902 100uF C6903...
  • Page 35 PStoPDF trial version. http://www.oakdoc.com PANEL_VCC [51Pin LVDS Connector] P7801 ( F o r F H D 6 0 / 1 2 0 H z ) L7800 120-ohm TM480Hz P7800 TF05-51S TM480Hz C7800 C7801 C7802 10uF 1000pF 0 . 1 u F TM480Hz TM480Hz RRXB4+/RLV0P...
  • Page 36 PStoPDF trial version. http://www.oakdoc.com [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...
  • Page 37 PStoPDF trial version. http://www.oakdoc.com 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 12V-->3.58V 4.7K +24V NORMAL_26~52 IC8007 R8000 P8000 +5V_NORMAL ST_3.5V-->3.5V NCP803SN293 RL_ON FW20020-24S Q8000 R8081 2SC3052 POWER_DET...
  • Page 38 PStoPDF trial version. http://www.oakdoc.com 15pF 15pF R8146 C8101 C8102 10MHz X8100 X8101-*1 32.768KHz R8138 MICOM_EPSON R8139 MICOM_KDS X8101 32.768KHz R8175 4.7M +3.5V_ST f o r D e b u g g e r SW8100 JTP-1127WEM P8100 12505WS-12A00 MICOM_RESET NEC_ISP_Tx NEC_ISP_Rx R8186 1/16W OCD1A...
  • Page 39 PStoPDF trial version. http://www.oakdoc.com +3.5V_ST EYEQ IR & KEY R8225 D8204 P8200 CDS3C05HDMI1 5.6V 12507WR-12L C8213 1000pF L8200 R8209 BLM18PG121SN1D EYEQ KEY1 R8226 R8210 L8201 BLM18PG121SN1D NEC_EEPROM_SDA KEY2 C8214 D8205 1000pF CDS3C05HDMI1 5.6V +3.5V_ST +3.5V_ST L8202 BLM18PG121SN1D +3.5V_ST R8202 R8200 +3.5V_ST R8227 1.5K...
  • Page 40 PStoPDF trial version. http://www.oakdoc.com * HDMI CEC KRC104S KRC104S L8300 Q8307 Q8305 BLM18PG121SN1D R8321 R8311 4.7K 4.7K KRC104S KRC104S Q8306 Q8302 +3.5V_ST R8316 R8302 R8317 JP8306 R8307 DDC_SDA_4 DDC_SDA_1 JP8304 R8318 R8308 CEC_REMOTE CEC_REMOTE CK-_HDMI4 CK-_HDMI1 CEC_REMOTE HDMI_CEC JK8303 JK8302 CK+_HDMI4 CK+_HDMI1 D0-_HDMI4...
  • Page 41 PStoPDF trial version. http://www.oakdoc.com RGB PC IC8401-*1 +5V_NORMAL R1EX24002ASAS0A IC8400 74F08D +5V_NORMAL D8409 ENKMC2838-T112 C8401 0.1uF R8401 RGB_EDID_RENESAS RGB_HSYNC IC8401 RGB_VSYNC M24C02-RMN6T R8402 R8420 8 VCC 7 WC EDID_WP 6 SCL 5 SDA 0IMMR00014A RGB_EDID_ST R8406 R8405 +3.3V_NORMAL BCM Reference L8408 60-ohm RGB_BEAD...
  • Page 42 PStoPDF trial version. http://www.oakdoc.com ALL for SIDE_GENDER option SIDE CVBS PHONE JACK ( N e w I t e m D e v e l o p m e n ) SIDE_AV_CVBS R8603 C8605 D8600 47pF 5.5V JK8600 KJA-PH-1-0177 M5_GND +3.3V_NORMAL M3_DETECT SIDE_AV_DET...
  • Page 43 PStoPDF trial version. http://www.oakdoc.com WIRELESS READY MODEL JK8700 KJA-PH-3-0168 W i r e l e s s p o w e r 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 INTERRUPT C8701 0 . 1 u F TP8700 2 .
  • Page 44 PStoPDF trial version. http://www.oakdoc.com L8803 MLB-201209-0120P-N2 +1.8V_AMP +3.3V_NORMAL CCFL = 20V IC8800 AP1117E18G-13 Edge_LED 32~47 Inch = 20V ADJ/GND Vd=1.4V 120 mA 5 5 I n c h & I O P M o d u l e = 2 4 V C8800 C8803 C8802...
  • Page 45 PStoPDF trial version. http://www.oakdoc.com IC9701 LG5111 IC9701 LG5111 LVDS_TX_0_DATA0_P R1A1P T1A1P RRXA0+ +1.8V_RXVDD +1.8V_PLL +1.8V_RXVDD LVDS_TX_0_DATA0_N R1A1M T1A1N RRXA0- C9704 C9707 27pF 27pF LVDS_TX_0_DATA1_P R1B1P T1B1P RRXA1+ LVDS_TX_0_DATA1_N R1B1M T1B1N RRXA1- RXVDD_18_1 RX_GND_1 X9700 25MHz C9712 C9718 C9724 C9731 C9738 C9745 C9762 C9768...

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