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LG 22LD350 Service Manual
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LG 22LD350 Service Manual

LG 22LD350 Service Manual

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LCD TV
SERVICE MANUAL
CHASSIS : LC01A
MODEL : 22LD350
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO :MFL62863023 (1008-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
22LD350-CB
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in China

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Summary of Contents for LG 22LD350

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LC01A MODEL : 22LD350 22LD350-CB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO :MFL62863023 (1008-REV00) Printed in China...

  • Page 2: Table Of Contents

    SAFETY PRODUCT ................. 3 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............7 EXPLODED VIEW ................... 12 SVC. SHEET ....................Copyright © 2010 LG Electronics. Inc. All rights reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Product

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright © 2010 LG Electronics. Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Specification

    Humidity : 10 ~ 90 % Input Voltage AC 100-240 V~, 50 / 60Hz Module Size 501(H)×297(V)×17.3(D) 22LGD(FHD) - 4 - Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 HDTV 1080i 1920x1080 33.75 60.00 HDTV 1080i 1920x1080 33.72 59.94 HDTV 1080p 1920x1080 56.250 HDTV 1080p 67.5 1920x1080 HDTV 1080p Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 - Only for training and service purposes...
  • Page 6 47.72 59.8 84.75 WXGA HDCP FHD model 1280*1024 63.595 60.0 108.875 SXGA HDCP FHD model 1920*1080 67.5 148.5 WUXGA HDCP - 6 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Adjustment Instruction

    If “Error” is displayed, Check connection between computer, jig, and set. Please Check the Speed : To use speed between from 200KHz to 400KHz - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 6) PC Audio In * Display and Sound check is executed by remote control. (4) Correction Tool option is complete. - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 R-Gain G-Gain B-Gain R-Cut G-Cut B-Cut Medium R-Gain G-Gain B-Gain R-Cut G-Cut B-Cut Warm R-Gain G-Gain B-Gain R-Cut G-Cut - 9- Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 - In case of LCD, Back-light on should be checked 10-19 using no signal or Full-white pattern. 20-35 36-49 50-79 Over 80 - 10- Copyright © 2010 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Carry the command. EDID data and 00 10 Automatically Download Model option (The use of a internal pattern) Downloa d - 1 1 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 12: 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. LGE Internal Use Only - 12 - Only for training and service purposes...
  • Page 13 IC102 HY27UF082G2B-TPCB NAND FLASH MEMORY +3.3V_Normal +3.3V_Normal NC_1 NC_29 2GBIT /PF_CE0 NC_2 NC_28 H : Serial Flash <T3 CHIP Config(AUD_LRCH)> IC101 L : NAND Flash PCM_A[0-7] NC_3 NC_27 /PF_CE1 LGE101D (S7 Non_Tcon/RM) Boot from SPI flash : 1’b0 PCM_D[0-7] H : 16 bit Boot from NOR flash : 1’b1 NC_4 NC_26...
  • Page 14 X1002 32.768KHz R1034 4.7M R1091 10K +3.5V_ST for Debugger SW1001 JTP-1127WEM MICOM_DEBUG +3.5V_ST P1001 C1003 12505WS-12A00 0.1uF C1010 0.1uF MICOM_RESET NEC_ISP_Tx NEC_ISP_Rx R1047 1/16W OCD1A EDID_WP OCD1B Q1001 2SC3052 FLMD0 R1002 10K P60/SCL0 P140/PCL/INTP6 R1018 R1048 NEC_SCL RL_ON P61/SDA0 P00/TI000 R1049 R1019 NEC_SDA...
  • Page 15 COMMON AREA New Item Development EARPHONE BLOCK HP_LOUT EXCEPT_CHINA_HOTEL_OPT C1118 2:X19 10uF C1115 1000pF R1125 JK3301 Q1101 +3.3V_Normal MMBT3904-(F) KJA-PH-0-0177 MMBT3904-(F) Q1104 +3.5V_ST R1155 DETECT HP_ROUT HP_DET EXCEPT_CHINA_HOTEL_OPT C1119 10uF 2:X19 C1116 1000pF Q1102 R1128 MMBT3904-(F) MMBT3904-(F) SPK_R+_HOTEL Q1103 R1129 3.3K 2:X19 SIDE_HP_MUTE...
  • Page 16 RS232C IR_OUT R1122 R1123 R1124 +3.5V_ST D1107 D1108 CDS3C30GTH CDS3C30GTH C1101 0.33uF SPG09-DB-009 IC1101 JK1101 C1106 MAX3232CDR 0.1uF C1102 0.1uF +3.5V_ST C1103 0.1uF DOUT1 R1109 R1114 RIN1 4.7K 4.7K C1104 0.1uF ROUT1 R1157 0 S7_RXD1 DIN1 R1156 0 NEC_RXD C1105 0.1uF DOUT2 DIN2...
  • Page 17 VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR VCC_1.5V_DDR DDR3 1.5V By CAP - Place these Caps near Memory VCC_1.5V_DDR DDR3 1.5V By CAP - Place these Caps near Memory A-MVREFDQ A-MVREFCA B-MVREFDQ B-MVREFCA Close to DDR Power Pin Close to DDR Power Pin CLose to Saturn7M IC CLose to DDR3 CLose to Saturn7M IC...
  • Page 18 +3.3V_Normal +3.3V_Normal S_FLASH IC1401 MX25L8005M2I-15G +3.3V_Normal C1401 /SPI_CS 0.1uF HOLD# SPI_SDO R1402 SCLK /FLASH_WP SPI_SCK R1405 SPI_SDI R1401 Q1401 KRC103S SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS Ver.
  • Page 19 LGIT CAN NIM_H/N TUNER for EU & CHINA +5V_TU RF_SWITCH_CTL Pull-up can’t be applied L3701 CHINA_OPT because of MODEL_OPT_2 BLM18PG121SN1D CHINA_OPT R3734 R3743 close to TUNER Q3701 CHINA_OPT ISA1530AC1 R3737 R3762 2.2K CONTROL_ATTEN CHINA_OPT R3745 CHINA_OPT Q3702 FE_BOOSTER_CTL TU3701 2SC3052 LNA2_CTL TU3702 The pull-up/down of LNA2_CTL...
  • Page 20 USB1 OPTION +3.3V_Normal +5V_USB IC2301 MIC2009YM6-TR R2303 L2301 4.7K MLB-201209-0120P-N2 VOUT 120-ohm ILIMIT $0.18 C2303 R2306 0 C2304 10uF FAULT/ ENABLE C2302 0.1uF 10uF USB1_CTL R2307 R2302 47 USB1_OCD R2305 SIDE_USB_DM R2304 0 SIDE_USB_DP D2301 D2302 CDS3C05HDMI1 CDS3C05HDMI1 5.6V 5.6V /RST_HUB TP2301 SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES...
  • Page 21 Composite For EU & CHINA +3.3V_Normal Full Scart/ Comp1 AV_CVBS_IN R1659 R1613 C1643 C1648 D1619 R1654 47pF 220pF SC1/COMP1_DET +3.3V_Normal R1614 IN CASE OF SMALL= 15V D1611 C1607 5.6V 0.1uF +12V/+15V EU_OPT L1606 R1660 EU_OPT JK1604 R4210 PPJ233-01 EU_OPT SC1_SOG_IN EU_OPT AV_CVBS_DET EU_OPT E...
  • Page 22 * Option name of this page : CI_SLOT (because of Hong Kong) CI Region CI SLOT +5V_CI_ON CI TS INPUT CI_DATA[0-7] AR1905 FE_TS_DATA[7] +5V_Normal CI_MDI[7] FE_TS_DATA[6] C1906 CI_MDI[6] FE_TS_DATA[5] 10uF CI_MDI[5] FE_TS_DATA[4] CI_MDI[4] EAG41860102 AR1906 P1901 FE_TS_DATA[3] CI_MDI[3] /CI_CD1 FE_TS_DATA[2] 10067972-000LF CI_MDI[2] C1903...
  • Page 23 China HOTEL Option Chinese Hotel Option AMP_VCC P3401 12505WS-09A00 HOTEL_OPT R3404 0 HOTEL_OPT C3401 0.1uF HOTEL_OPT AUDIO_R +3.3V_Normal HOTEL_OPT R3403 0 AMP_RESET_N R3402 HOTEL_OPT AMP_MUTE_HOTEL Q3401 RT1C3904-T112 R3401 200 HOTEL_OPT AMP_MUTE_HOTEL HOTEL_OPT HOTEL_OPT R3406 0 SPK_R+_HOTEL HOTEL_OPT R3405 0 SPK_R-_HOTEL CLOSE TO THE EARPHONE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
  • Page 24 SIDEAV_DET SIDEAV_CVBS_IN SIDEAV_L_IN SIDEAV_R_IN SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M Ver. 1.0 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON SIDE AV THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 25 NON-WIRELESS MODEL R2627 S7_RXD S7_RXD1 R2626 S7_TXD S7_TXD1 WIRELESS_SW_CTRL WIRELESS_PWR_EN WIRELESS_DETECT WIRELESS_DL_RX WIRELESS_DL_TX SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. GP2_Saturn7M Ver. 1.0 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR NON WIRELESS READY THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
  • Page 26 +3.3V_Normal MODEL OPTION AI26 MODEL OPTION +1.26V_VDDC VDDC VDDC 1.26V PIN NAME PIN NO. HIGH L7302 VDDC : 2026mA MODEL_OPT_0 BLM18SG700TN1D NO FRC MODEL_OPT_1 MINI LVDS LVDS R7300 IF_AGC_SEL MODEL_OPT_0 R7301 MODEL_OPT_2 DDR_512MB DDR_256MB LNA2_CTL MODEL_OPT_1 R7302 RF_SWITCH_CTL MODEL_OPT_2 MODEL_OPT_3 R7303 MODEL_OPT_3 MODEL_OPT_4...
  • Page 27 IC101 LGE101D (S7 Non_Tcon/RM) S7_DIVX NC_48 LVACLKP/LLV6P/BLUE[3] RXBCK+ AF16 RXBCK- NC_78 LVACLKN/LLV6N/BLUE[2] NC_64 LVA0P/LLV3P/BLUE[9] RXB0+ RXB0- NC_50 LVA0N/LLV3N/BLUE[8] AD14 NC_45 LVA1P/LLV4P/BLUE[7] RXB1+ NC_34 LVA1N/LLV4N/BLUE[6] RXB1- AF15 NC_77 LVA2P/LLV5P/BLUE[5] RXB2+ NC_65 LVA2N/LLV5N/BLUE[4] RXB2- AE15 NC_62 LVA3P/LLV7P/BLUE[1] RXB3+ NC_33 LVA3N/LLV7N/BLUE[0] RXB3- AD16 RXB4+ NC_47 LVA4P/LLV8P...
  • Page 28 +12V/+15V +5V_Normal +24V/+15V +3.5V_ST PANEL_POWER R7561 24V-->3.48V +24V_LED 5V_PANEL 100K +24V/+15V 12V_PANEL 15V-->3.56V MLB-201209-0120P-N2 Adapter L7504 ST_3.5V-->3.5V --> 3.375V NON_Adapter P7500 Adapter C7525 C7526 C7529 IC7509 L7503 L7912 10uF 0.01uF 0.1uF NCP803SN293 SMAW200-12 MLB-201209-0120P-N2 MLB-201209-0120P-N2 Q7506 +15V 4A -> 3A modify 090916 R7582 POWER_DET AO3407A...
  • Page 29 CONTROL +3.5V_ST IR & LED P7600 R7606 12507WR-03L R7605 L7600 BLM18PG121SN1D L7601 BLM18PG121SN1D C7600 C7601 0.1uF 0.1uF EYEQ/TOUCH_KEY R7618 D7604 NEC_EEPROM_SCL P7601 CDS3C05HDMI1 5.6V 12507WR-12L C7609 1000pF L7602 R7600 BLM18PG121SN1D EYEQ/TOUCH_KEY KEY1 R7619 L7603 R7601 D7603 NEC_EEPROM_SDA BLM18PG121SN1D 5.6V D7605 KEY2 C7610 AMOTECH...
  • Page 30 HDMI EEPROM 5V_HDMI_1 +5V_Normal SIDE_HDMI 5V_HDMI_1 5V_DET_HDMI_1 HDMI_1 5V_HDMI_4 5V_DET_HDMI_4 ENKMC2838-T112 D7704 HDMI_1 JACK_GND SHIELD R7744 Q7702 IC7700 Q7700 R7728 HPD4 EDID_WP R7700 HPD1 R7730 2SC3052 2SC3052 AT24C02BN-10SU-1.8 $0.253 $0.253 C7702 C7701 R7731 0.1uF R7701 0.1uF 1.8K 1.8K $0.055 JP7704 JP7700 C7703 R7754...
  • Page 31 MAIN1 BLOCK MICOM BLOCK TP7013 5V_DET_HDMI_3 TP7014 FRC_RESET TP7032 WIRELESS_DETECT SCAN_BLK2 TP7016 TP7033 WIRELESS_PWR_EN SCAN_BLK1/OPC_OUT TP7017 TP7034 WIRELESS_SW_CTRL TP7018 WIRELESS_DL_RX TP7035 RF_ENABLE TP7019 WIRELESS_DL_TX TP7036 RF_RESET /PIF_SPI_CS TP7020 ET_RXER TP7021 TP7022 /RST_PHY TP7023 M_REMOTE_RX TP7024 M_REMOTE_TX FRC_SCL TP7025 FRC_SDA TP7026 UART_FRC_RX TP7027 UART_FRC_TX...
  • Page 32 Replacement Item +1.8V_AMP +3.3V_Normal IC7800 AP1117E18G-13 ADJ/GND 120 mA C7800 C7802 C7803 0.1uF 0.1uF 10uF AMP_VCC SPK_L+ D7800 C7844 0.01uF 1N4148W R7812 R7819 L7804 100V AD-8770 R7820 C7840 R7809 R7828 0.1uF 4.7K C7834 390pF SPEAKER_L C7838 0.47uF C7831 C7826 R7829 C7820 C7824 0.01uF...
  • Page 33 [51Pin LVDS Connector] (For FHD 60Hz) PANEL_VCC L7900 120-ohm must be located Bottom side P7900 TF05-51S C7900 C7901 C7902 10uF 1000pF 0.1uF [30Pin LVDS Connector] [30Pin LVDS Connector] (For HD 60Hz_Small) (For HD 60Hz_Normal) PANEL_VCC [30Pin LVDS Connector] SMALL_NC1 (For HD 60Hz_Small) PANEL_VCC P7902 P7901...

This manual is also suitable for:

22ld350-cb