LG 22LD350, Service Manual

Page 1: ...READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LT01B MODEL 42LD465 42LD465 DA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL63141213 1008 REV00 ...

Page 2: ...ht LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 EXPLODED VIEW 15 SVC SHEET ...

Page 3: ...ck Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to t...

Page 4: ... your body by touching a known earth ground 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 unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge bu...

Page 5: ...e solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced...

Page 6: ...thout special appointment 1 Temperature 20 ºC 5 ºC 77 ºF 9 ºF CST 40 ºC 5 ºC 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage AC 100 240 V 50 60 Hz Standard Voltage of each products is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes pr...

Page 7: ...80x720 45 00 60 00 HDTV 720p 10 1920x1080 28 125 50 00 HDTV 1080i 11 1920x1080 33 75 60 00 HDTV 1080i 12 1920x1080 33 72 59 94 HDTV 1080i 13 1920x1080 56 250 50 HDTV 1080p 14 1920x1080 67 43 67 5 59 94 60 HDTV 1080p No Specification Proposed Remark Resolution H freq kHz V freq Hz Pixel Clock MHz 1 720 400 31 468 70 08 28 321 For only DOS mode 2 640 480 31 469 59 94 25 17 VESA Input 848 480 60Hz 85...

Page 8: ... 875 SXGA HDCP 8 1920 1080 67 5 60 148 5 WUXGA HDCP 8 2 PC Mode 8 HDMI Input PC DTV 8 1 DTV Mode No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 720 480 31 469 31 5 59 94 60 27 00 27 03 SDTV 480P 2 720 576 31 25 50 54 SDTV 576P 3 1280 720 37 500 50 74 25 HDTV 720P 4 1280 720 44 96 45 59 94 60 74 17 74 25 HDTV 720P 5 1920 1080 33 72 33 75 59 94 60 74 17 74 25 HDTV 1080I 6 1920 ...

Page 9: ...anual Insert executing APC Boot file Download 1 Execute ISP program Mstar ISP Utility and then click Config tab 2 Set as below and then click Auto Detect and check OK message If Error is displayed Check connection between computer jig and set 3 Click Read tab and then load download file XXXX bin by clicking Read 4 Click Connect tab If Can t is displayed check connection between computer jig and se...

Page 10: ...ADJ key Enter Internal ADC mode by pushing G key at 6 ADC Calibration Caution Using power on button of the Adj R C power on TV ADC Calibration Protocol RS232 Adjust Sequence aa 00 00 Enter Adjust Mode xb 00 40 Component1 Input 480i ad 00 10 Adjust 480i Comp1 xb 00 60 RGB Input 1024x768 ad 00 10 Adjust 1024x768 RGB aa 00 90 End Adjust Mode Required equipment Adjustment R C 3 2 Function Check 1 Chec...

Page 11: ...it is the FULL Dynamic Range of Module 4 2 Manual W B process using adj R C After enter Service Mode by pushing ADJ key Enter White Balance by pushing G After done all adjustments Press In start button and compare Tool option and Area option value with its BOM if it is correctly same then unplug the AC cable If it is not same then correct it same with BOM and unplug AC cable For correct it to the ...

Page 12: ...ta HEXA Value 2 Changeable Data Serial No Controlled Data 01 Month Controlled Data 00 Year Controlled Check sum Auto Download Manual Download Caution 1 Use the proper signal cable for EDID Download Analog EDID Pin3 exists Digital EDID Pin3 exists 2 Nerver connect HDMI D sub Cable at the same time 3 Use the proper cables below for EDID Writing 4 Download HDMI1 HDMI2 separately because each data is ...

Page 13: ...ight reserved Only for training and service purposes 1 FHD RGB EDID Data CS 1D 2 FHD HDMI EDID Data CS D739 3 FHD HDM2 EDID Data CS D739 4 HD RGB EDID Data CS 93 5 HD HDMI1 EDID Data CS 7AD5 6 HD HDMI2 EDID Data CS 7AD5 7 HD HDMI3 EDID Data CS 7AB5 8 ASCII Code ...

Page 14: ...sh the OK key to store value Then the message Saving OK is pop Press the exit key to finish VCOM adjustment Visual Adjust and control the Voltage level V COM default value is different from module 1 32LD450 417 2 37LD450 432 3 42LD450 433 4 7 Outgoing condition Configuration When pressing IN STOP key by SVC remocon Red LED are blinked alternatively And then Automatically turn off Must not AC power...

Page 15: ...nd mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPOR...

Page 16: ...V0N RED 8 U25 A1P RLV1P RED 7 U24 A1M RLV1N RED 6 V26 A2P RLV2P RED 5 V25 A2M RLV2N RED 4 V24 A3P RLV4P RED 1 W24 A3M RLV4N RED 0 Y26 A4P RLV5P GREEN 9 Y25 A4M RLV5N GREEN 8 Y24 BCKP TCON13 GREEN 1 AC26 BCKM TCON12 GREEN 0 AC25 B0P RLV6P GREEN 7 AA26 B0M RLV6N GREEN 6 AA25 B1P RLV7P GREEN 5 AA24 B1M RLV7N GREEN 4 AB26 B2P RLV8P GREEN 3 AB25 B2M RLV8N GREEN 2 AB24 B3P TCON11 BLUE 9 AC24 B3M TCON10 ...

Page 17: ... 10K FRC 3D_POWER_EN R210 100 3D 3D_FPGA_RESET R213 100 3D C268 4 7uF C272 4 7uF L205 5 6uH CM2012F5R6KT L203 5 6uH CM2012F5R6KT MODEL_OPT_6 R215 1K LCD R214 1K OLED LGE107D S7M Divx_Non RM IC101 S7M_DIVX A_RXCP F1 A_RXCN F2 A_RX0P G2 A_RX0N G3 A_RX1P H3 A_RX1N G1 A_RX2P H1 A_RX2N H2 DDCDA_DA GPIO24 F5 DDCDA_CK GPIO23 F4 HOTPLUGA GPIO19 E6 B_RXCP D3 B_RXCN C1 B_RX0P D1 B_RX0N D2 B_RX1P E2 B_RX1N E...

Page 18: ...5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 VSSQ_5 E2 VSSQ_6 E8 VSSQ_7 F9 VSSQ_8 G1 VSSQ_9 G9 R327 0 R328 0 H5TQ1G63BFR H9C IC301 1 FRC_DDR_1333 A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 A15 M7 BA0 M2 BA1 N8 BA2 M3 CK J7 CK K7 CKE K9 CS L2 ODT K1 RAS J3 CAS K3 WE L3 RESET T2 DQSL ...

Page 19: ...12DN 3 IN 2 GND 4 BS 1 FB 5 VCC 6 SW_1 7 SW_2 8 EN SYNC R410 10K R446 30K 1 OPT R438 0 FRC R462 10K 1 R431 22K R425 100 POWER_24_INV_CTL L415 3 6uH NR8040T3R6N Q402 RT1P141C T112 1 2 3 IC401 MP8706EN C247 LF Z 3 SW_2 2 SW_1 4 BST 1 IN 5 EN SYNC 6 FB 7 VCC 8 GND C419 1uF 25V OPT R445 10K IC408 NCP803SN293 1 GND 3 VCC 2 RESET R459 10K R480 100 PD_ 12V C443 4 7uF 16V C420 22uF 10V C469 22uF 10V C471 ...

Page 20: ...2 2 4 4 1 1 5 5 6 6 7 7 8 8 R1076 22 NEC_SCL C1009 1uF 3 5V_ST MODEL1_OPT_3 R1037 22 Q1001 2SC3052 E B C NEC_ISP_Rx GND R1069 22 3 5V_ST MODEL1_OPT_1 MICOM_RESET C1002 0 1uF OLP RF_RESET R1014 4 7K R1001 47K TP1002 R1054 22 19 22_LAMP LED_B LG_LOGO R1039 22 R1070 100 FLMD0 WIRELESS_PWR_EN NEC_EEPROM_SDA NEC_SDA INV_CTL NEC_EEPROM_SDA TP1003 R1005 10K AMP_MUTE X1002 32 768KHz NEC_ISP_Rx AMP_RESET_N...

Page 21: ...01 100 LED_B LG_LOGO C2409 1000pF 50V OPT R2407 10K Commercial_EU 3 5V_ST KEY1 L2403 BLM18PG121SN1D L2401 BLM18PG121SN1D R2411 100 EYEQ TOUCH_KEY C2403 0 1uF 16V R2416 10K OPT Q2402 2SC3052 Commercial E B C L2404 BLM18PG121SN1D IR_OUT D2402 5 6V AMOTECH R2422 0 Commercial_US R2404 10K 1 R2405 10K 1 R2417 22 WIRELESS R2418 10K WIRELESS R2419 47K WIRELESS IR_PASS R2420 47K WIRELESS Q2403 2SC3052 WIR...

Page 22: ... GIP R691 0 GIP R692 0 NON_GIP R693 0 NON_GIP C621 0 47uF 25V C615 1uF 50V C677 0 047uF NON_GIP VGH 25V VGH_M 25V R605 47K OPT VGH 25V R633 10 GIP R630 10 GIP R603 OPT OPT R696 0 GIP R698 1M NON_GIP C661 10uF 16V REF REF R632 10K GIP R627 0 C617 1uF 50V R629 10 GIP R631 10 GIP EN2 R613 1K EN2 EN2 D606 100V MMSD4148T1G OPT D607 100V MMSD4148T1G VDD_LCM 16V R616 10K OPT R638 0 OPT R631 1 200 NON_GIP...

Page 23: ..._HDMI_2 D1 _HDMI4 D802 R808 0 JP806 D1 _HDMI1 R890 4 7K 5V_HDMI_4 R862 10K CK _HDMI4 D0 _HDMI4 D823 ENKMC2838 T112 A1 C A2 EDID_WP R876 22 JP809 R802 3 3K R849 0 D821 ENKMC2838 T112 A1 C A2 CK _HDMI4 D0 _HDMI3 R829 0 JP811 5V_Normal R806 22 R871 10K R860 100 R820 0 R878 22 IC804 AT24C02BN 10SU 1 8 HDMI_SIDE 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC R846 0 CK _HDMI1 C803 0 1uF 16V DDC_SCL_4 JK804...

Page 24: ... VINPUT 4 FIX_POLE C1129 0 1uF 16V R1139 4 7K 3 3V_Normal C1121 100pF 50V R1147 1K C1123 OPT OPT RGB_DDC_SDA DSUB_B DSUB_VSYNC D1109 30V R1110 10K C1107 100pF 50V D1102 5 6V OPT AMOTECH C1124 OPT OPT C1122 68pF 50V OPT 5V_Normal R1143 22 D1115 ENKMC2838 T112 A1 C A2 PC_L_IN 2 S16 IC1104 NL17SZ00DFT2G OPT 3 GND 2 B 4 Y 1 A 5 VCC R1134 0 DSUB_DET D1112 30V R1148 0 R1150 0 R1146 10K R1127 0 C1131 0 1...

Page 25: ...1 0 33uF C1105 0 1uF R1157 0 R1156 0 R1124 100 NEC_RXD C1106 0 1uF 3 5V_ST R1153 0 R1154 0 D1108 30V CDS3C30GTH IR_OUT C1103 0 1uF S7_TXD1 D1107 30V CDS3C30GTH R1114 4 7K OPT NEC_TXD IC1101 MAX3232CDR EAN41348201 3 C1 2 V 4 C2 1 C1 6 V 5 C2 7 DOUT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12 ROUT1 13 RIN1 14 DOUT1 15 GND 16 VCC C1104 0 1uF R1109 4 7K OPT C1102 0 1uF 3 5V_ST S7_RXD1 R1123 100 R1122 0 OPT JK1...

Page 26: ..._OPT R3307 10K SIDE_AV_OPT C3303 100pF 50V SIDE_AV_OPT L3303 BLM18PG121SN1D SIDE_AV_OPT D3301 30V SIDE_AV_OPT L3301 BLM18PG121SN1D SIDE_AV_OPT R3305 1K SIDE_AV_OPT R3302 10K SIDE_AV_OPT C3302 100pF 50V SIDE_AV_OPT D3303 5 6V SIDE_AV_OPT 3 3V_Normal R3304 470K SIDE_AV_OPT R3303 470K SIDE_AV_OPT R3309 12K SIDE_AV_OPT L3302 BLM18PG121SN1D SIDE_AV_OPT C3301 100pF SIDE_AV_OPT C3304 100pF OPT SIDEAV_DET...

Page 27: ...IRELESS_DL_TX IC2601 MC14053BDR2G OPT 3 Z1 2 Y0 4 Z 1 Y1 6 INH 5 Z0 7 VEE 8 VSS 9 C 10 B 11 A 12 X0 13 X1 14 X 15 Y 16 VDD IR_PASS R2618 0 R2619 0 TP2601 TP2602 R2620 0 WIRELESS JK2601 KJA PH 3 0168 14 GND_3 13 I2C_SDA 5 VCC 24V 20V 17V _5 12 I2C_SCL 11 GND_2 2 VCC 24V 20V 17V _2 19 GND_5 18 IR 10 RESET 4 VCC 24V 20V 17V _4 1 VCC 24V 20V 17V _1 17 GND_4 9 GND_1 8 INTERRUPT 3 VCC 24V 20V 17V _3 16 ...

Page 28: ... CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SIGN6409 R1453 0 D1452 5 6V CDS3C05HDMI1 OPT JK1450 KJA UB 4 0004 1 2 3 4 5 L1451 MLB 201209 0120P N2 120 ohm SIDE_USB_DP SIDE_USB_DM R1452 0 TP1451 D1451 5 6V CDS3C05HDMI1 OPT RST_HUB C1451 22uF 10V IC1450 AP2191SG 13 3 IN_2 2 IN_1 4 EN 1 GND 5 FLG 6 OUT_1 7 OUT_2 8 NC C1452 10uF 10V 5V_USB C1453 0 1uF R1455 4 7K OPT 3 3V_Normal R1456 0 USB...

Page 29: ...P R637 4 51K 1 TCON_47_FHD_60_LAMP R643 4 270K 1 TCON_47_FHD_60_LAMP R635 4 180K 1 TCON_47_FHD_60_LAMP R636 4 68K 1 TCON_47_FHD_60_LAMP R611 4 220K 1 TCON_47_FHD_60_LAMP R620 5 51K 1 TCON_47_FHD R621 5 220K 1 TCON_47_FHD R622 5 11K 1 TCON_47_FHD R637 5 51K 1 TCON_47_FHD R643 5 270K 1 TCON_47_FHD R636 5 75K 1 TCON_47_FHD R635 5 180K 1 TCON_47_FHD R611 5 220K 1 TCON_47_FHD R637 6 27K 1 TCON_55_FHD R...

Page 30: ...R1219 10 R1212 10 AR1218 10 AR1215 10 AR1208 10 AR1219 10 AR1216 10 AR1214 10 AR1211 10 AR1220 10 AR1201 10 AR1202 10 AR1217 10 AR1204 10 AR1207 10 AR1210 10 AR1213 10 AR1209 10 AR1203 10 AR1205 10 AR1212 10 AR1206 10 R1234 10K B MCKE A MCKE R1233 10K H5TQ1G63BFR H9C IC1202 A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 A15 M7 BA0 M2 BA1 N8 BA2 M3 CK ...

Page 31: ... THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPI_SCK FLASH_WP R1402 0 R1401 0 OPT SPI_CS R1404 4 7K C1401 0 1uF 3 3V_Normal 3 3V_Normal Q1401 KRC103S E B C 3 3V_Normal R1403 10K R1405 33 SPI_SDO SPI_SDI IC1401 MX25L8005M2I 15G S_FLASH 3 WP 2 SO 4 GND 1 CS 5 SI 6 SCLK 7 HOLD 8 VCC S Flash 1MB GP2_Saturn7M Ver 1 2 23 ...

Page 32: ..._1 9 SIF 8 NC IF_TP 3 B 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 19 SHIELD IC5001 AZ1117H ADJTRE1 EH11A 2 OUTPUT 3 INPUT 1 ADJ GND R5030 220 NON_TU_CVBS_BYPASS R5031 220 TU5001 3 TDVJ H001F NTSC_1INPUT_H_LGIT 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 9 SIF 8 NC IF_TP 3 B 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 19 SHIELD TU5001 2 TDVJ H031F NT...

Page 33: ...SDB_DEMOD C2903 0 1uF ISDB_DEMOD FE_TS_SYNC 3 3V_DE TP2903 ISDB_DEMOD R2914 2 2K OPT DEMOD_SDA C2922 0 1uF 16V ISDB_DEMOD C2915 15pF 50V ISDB_DEMOD TP2906 ISDB_DEMOD C2909 0 1uF ISDB_DEMOD C2904 0 1uF ISDB_DEMOD R2908 2 2K ISDB_DEMOD 1 2V_DE C2912 0 1uF 16V ISDB_DEMOD C2901 0 1uF ISDB_DEMOD FE_TS_DATA 0 C2902 0 1uF ISDB_DEMOD R2904 2 2K ISDB_DEMOD C2914 0 1uF 16V ISDB_DEMOD R2903 10K 1 ISDB_DEMOD ...

Page 34: ... IC3001 SC4215ISTRT ISDB_POWER 3 VIN 2 EN 4 NC_2 1 NC_1 5 NC_3 6 VO 7 ADJ 8 GND R3001 0 ISDB_DEMOD L3001 BLM18PG121SN1D ISDB_POWER C3002 0 1uF ISDB_POWER R3003 10K ISDB_POWER C3001 0 1uF ISDB_POWER IF_AGC_SEL C3005 0 1uF 16V ISDB_POWER R3004 5 1K ISDB_POWER C3003 0 1uF 16V ISDB_POWER TP3002 1 2V_DE C3006 22uF 16V ISDB_POWER 3 3V_Normal IF_AGC_MAIN IF_AGC R3002 0 MSTAR DEMOD C3004 10uF 10V ISDB_POW...

Page 35: ...9 R3859 0 OPT Q3803 2SC3052 E B C R3812 75 5V_Normal R3858 0 OPT R3802 10K SC1_FB R3838 0 OPT 3 3V_Normal COMP2_Y DTV MNT_VOUT D3807 5 6V R3857 0 OPT JK3801 PPJ238 01 NON_CI_30 5D GN2 O SPRING 6D GN2 E LUG 4D GN2 CONTACT 7E BL2 E LUG S 5E BL2 O SPRING 7F RD2 E LUG S 5F RD2 O SPRING_1 5G WH2 O SPRING 4H RD2 CONTACT 5H RD2 O SPRING_2 6H RD2 E LUG 6A YL1 E LUG 5A YL1 O SPRING 4A YL1 CONTACT 5B WH1 O ...

Page 36: ...16V OPT RXB2 RXC2 VCOMR POL RXB3 RXC1 C701 0 1uF 16V MINI_LVDS GMA1 GMA13 RXB0 RXA1 RXD3 GMA12 R703 3 3K MINI_LVDS R721 0 OPT R728 0 SCAN R720 0 SCAN R723 0 OPT R713 0 NON_SCAN SCAN_BLK1 OPC_OUT R714 0 OPT R724 0 OPT VDD_EVEN CLK1 VGL 5V Z_OUT CLK4 VGI_N VGI_P VST CLK2 VGL_I CLK5 CLK6 R745 0 NON_GIP CLK3 VDD_ODD VGI_N R767 0 NON_GIP VGH_M 25V CLK1 R752 0 NON_GIP R753 0 NON_GIP R771 0 NON_GIP CLK5 ...

Page 37: ...00V 1N4148W OPT AUD_SCK 0 01uF C543 50V OPT 0 1uF C515 50V SPK_L 24V R515 10K 0 1uF C513 16V 0 1uF C509 0 1uF C505 16V SPK_L 0 1uF C526 50V Q501 2SC3052 E B C 3 3V_Normal C516 1000pF 50V R535 3 3 OPT C547 0 01uF 50V OPT AMP_MUTE_HOTEL C501 10uF 10V OPT C503 10uF 10V OPT C511 10uF 10V OPT R526 12 R522 12 R520 12 R525 12 R519 12 R524 12 R521 12 R523 12 C546 22pF 50V OPT C545 22pF 50V OPT C544 22pF 5...

Page 38: ... FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC BT_LOUT BT_DM BT_ON OFF BT_DP GP2_Saturn7M NON B T NOT USING B T Ver 1 0 44 ...

Page 39: ...TS_DATA 0 FE_TS_DATA 6 FE_TS_DATA 4 PCM_D 3 PCM_D 7 FE_TS_DATA 1 PCM_D 5 PCM_D 4 PCM_D 0 FE_TS_DATA 2 PCM_A 13 PCM_IORD CI_TS_DATA 7 CI_TS_CLK CI_TS_SYNC PCM_A 14 PCM_REG CI_TS_DATA 5 PCM_A 12 PCM_CD PCM_A 10 CI_TS_DATA 3 FE_TS_VAL_ERR PCM_A 8 PCM_WE PCM_A 3 CI_TS_DATA 4 CI_TS_DATA 1 CI_TS_DATA 0 PCM_IOWR PCM_A 0 PCM_A 4 FE_TS_CLK PCM_5V_CTL PCM_RST PCM_A 11 PCM_A 6 PCM_A 9 FE_TS_SYNC PCM_A 2 PCM_...

Page 40: ...ING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC TP2109 EPHY_TXD1 EPHY_RXD1 EPHY_CRS_DV TP2107 TP2111 RST_PHY TP2101 EPHY_EN TP2110 TP2108 TP2104 TP2103 EPHY_RXD0 EPHY_REFCLK EPHY_MDIO TP2106 EPHY_MDC EPHY_TXD0 TP2105 ET_RXER TP2102 NON ETHERNET Ver 1 0 GP2_Saturn7M NON ETHERNET 48 ...

Page 41: ...ON FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC TP2502 TP2501 TP2504 RF_ENABLE RF_RESET M_REMOTE_TX M_REMOTE_RX TP2503 NON Motion Remocon Region GP2_Saturn7M NON M REMOCON Ver 1 0 50 ...

Page 42: ...TION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC AMP_MUTE_HOTEL SPK_R _HOTEL SPK_R _HOTEL NON CHINA HOTEL NON CHINA HOTEL GP2_Saturn7M Ver 1 0 52 ...

Page 43: ...ORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC CHB_CVBS_IN PIF_SPI_CS R6001 0 NON CHB Ver 1 0 GP2_Saturn7M 68 ...

Page 44: ......

Page 45: ...ule Check IC402 3 5 7 Output Voltage IC402 2 5V IC403 1 26V IC405 3 3V IC407 1 5V Replace IC402 3 5 7 Re download Micom software Check Micom Voltage IC1002 pin 48 3 5V Replace L404 20V Voltage is dependent on Model 26LD350 24V Check LVDS Power Voltage Q409 12V Replace Q409 Check Mstar LVDS Output Replace Mstar IC101 or Main Board Change Module ok ok ok ok ok ok ok ok ok ok No No No No No No No No ...

Page 46: ...Signal TU5001 17 18 Pin Replace IC5001 Check Tuner 5V Power L5002 Check IC401 Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok ok ok ok ok No No No No No Replace IC401 No Bad Tuner Replace Tuner Replace L5002 ok Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 47: ...Signal TU5001 11 Pin Replace IC5001 Check Tuner 5V Power L5002 Check IC401 Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok ok ok ok ok No No No No No Replace IC401 No Bad Tuner Replace Tuner Replace L5002 ok Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 48: ...ck Component Cable for damage or open conductor Check JK3801 Y PB PR signal Line ok ok ok No Replace Jack ok Check CVBS_DET Signal Replace R3802 or R3803 No Check Mstar LVDS Output Replace Mstar IC101 or Main Board No Check COMP_DET Signal Replace R3804 or R3805 No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for traini...

Page 49: ...1143 SDA SCL Check JK1104 H V_Sync R G B Signal Line ok ok ok No No Replace the defective IC or re download EDID data ok Replace Jack Check DSUB_DET Replace R1146 or R1147 No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 50: ...M IC103 Power I2C Signal Replace the defective IC ok No Replace Jack Check HDMI Signal Check other set If no problem check signal line ok No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Replace Main Board No Check HDMI_DET HPD No ok Replace R802 R804 R830 R896 Q802 Replace R835 R837 R862 R897 Q803 HDMI1 HDMI2 HDMI1 HDMI2 Copyright ⓒ 2010 LG Electronics Inc All right reserved Onl...

Page 51: ... No Off Toggle the Menu Check AMP IC IC501 Power 20V 3 3V 1 8V No Check Regulator IC404 20V Voltage is dependent on Model 26LD350 24V Check Mstar I2S Output R503 R504 R505 No Check signal line Or replace Mstar IC101 Check Mstar AUDIO_MASTER_CLK TP502 No Replace Mstar IC101 or Main Board ok Check AMP I2C Line R506 R507 No Check signal line Or replace Mstar IC101 Copyright ⓒ 2010 LG Electronics Inc ...

Page 52: ...ce L5003 Check Tuner 1 2V Power IC5001 2 pin 1 2V Check IF_P N Signal TU5001 17 18 Pin Replace IC5001 Check Tuner 5V Power L5002 Check IC401 ok ok ok ok No No No No Replace IC401 No Bad Tuner Replace Tuner Replace L5002 ok Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 53: ...place L5003 Check Tuner 1 2V Power IC5001 2 pin 1 2V Check CVBS Signal TU5001 11 Pin Replace IC5001 Check Tuner 5V Power L5002 Check IC401 ok ok ok ok No No No No Replace IC401 No Bad Tuner Replace Tuner Replace L5002 ok Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 54: ...k No Replace Jack Follow procedure 8 All source audio trouble shooting guide Follow procedure 8 All source audio trouble shooting guide 13 RGB Audio Check Cable conductors for damage or open conductor Check JK1102 Signal Line ok No ok Replace Jack Follow procedure 8 All source audio trouble shooting guide Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes...

Page 55: ...r damage or open conductor Check JK3301 Signal Line ok ok No Replace Jack Follow procedure 8 All source audio trouble shooting guide Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 56: ...Only Service JK1103 AUDIO OUT SPDIF JK3301 AUDIO OUT SIDE_HEADPHONE RGB PC In P1102 PC EDID EEPROM AT24C02BN 10SU IC1105 TX RX RGB DDC_SCL1 SDA1 RGB_DDC_SCL SDA COMPONENT In AVI In SIDE_AV2 In JK3302 COMP CVBS1 I2C_SCL SDA LVDS P705 AUDIO COMP L R CVBS1 L R CVBS2 AUDIO CVBS2 L R LED_B LG LOGO IR_OUT IR_PASS JK1102 AUDIO RGB PC In L R SPDIF_OUT HP_L ROUT I2S P5301 4pin 2 SPK SIDE_USB_DP DM JK3801 2...

Page 57: ...OM AT24C02BN 10SU IC1105 TX RX RGB DDC_SCL1 SDA1 RGB_DDC_SCL SDA COMPONENT In AVI In SIDE_AV2 In JK3302 COMP CVBS1 I2C_SCL SDA Mini LVDS P701 2 LVDS P701 2 P GAMMA for MINI LVDS MAX9668ETP IC601 GMA 8 bit LEVEL SHIFT MAX17119ETI IC602 GCLK 6bit GSP GVST GVDD_EVEN ODD AUDIO COMP L R CVBS1 L R CVBS2 AUDIO CVBS2 L R LED_B LG LOGO IR_OUT IR_PASS MINI_LVDS_POWER MAX17113 IC603 DPM_A EN2 MINI_LVDS_POWER...