LG 37LD450, Service Manual

Page 1: ...READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LA01B MODEL 37LD450 37LD450 UA 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 MFL63260803 1001 REV00 ...

Page 2: ...nal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 11 EXPLODED VIEW 16 SVC SHEET ...

Page 3: ...perate without damage of electrical shock Leakage Current Cold Check 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 p...

Page 4: ...n 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 b...

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: ...EC specification EMC FCC ICES IEC specification Model Market Appliance 19LD350 UB North America Safety UL1492 CSA C22 2 No 1 22LD350 UB EMC FCC Class B IEC Class B 26LD350 UB 32LD350 UB 6 SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 4 General Specification TV No Item Specification Remark 1 Receivable System 1 ATSC NTSC M 2 Available Channel VHF ...

Page 7: ...emperature Cool Typ 0 269 Typ The W B Tolerance is 0 015 0 273 0 015 0 015 for Adjustment Medium Typ 0 285 Typ 0 015 0 293 0 015 Warm Typ 0 313 Typ 0 015 0 329 0 015 No Item Min Typ Max Unit Remarks 1 Max Luminance 400 500 cd m2 Center 1 point Full White Pattern 2 Luminance uniformity 1 3 5point 3 Color coordinate RED X Typ 0 639 Typ Default Y 0 03 0 334 0 03 GREEN X 0 289 Y 0 606 BLUE X 0 145 Y 0...

Page 8: ...1080 67 500 60 148 50 HDTV 10 1920 1080 67 432 59 94 148 352 HDTV 11 1920 1080 27 000 24 000 74 25 HDTV 12 1920 1080 26 97 23 976 74 176 HDTV 13 1920 1080 33 75 30 000 74 25 HDTV 14 1920 1080 33 71 29 97 74 176 HDTV 7 RGB Input PC No Resolution H freq kHz V freq kHz Pixel clock Proposed PC DDC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 469 70 08 28 32 DOS O 3 640 480 31 469 59 94 25 17 VESA V...

Page 9: ... 60 015 85 50 VESA WXGA X 8 1280 1024 63 981 60 020 108 00 VESA SXGA O 9 1600 1200 75 00 60 00 162 VESA UXGA O 10 1920 1080 67 5 60 148 5 HDTV 1080P O DTV 1 720 480 31 5 60 27 027 SDTV 480P 2 720 480 31 47 59 94 27 00 SDTV 480P 3 1280 720 45 00 60 00 74 25 HDTV 720P 4 1280 720 44 96 59 94 74 176 HDTV 720P 5 1920 1080 33 75 60 00 74 25 HDTV 1080I 6 1920 1080 33 72 59 94 74 176 HDTV 1080I 7 1920 108...

Page 10: ... items can be check using In Star Menu 1 ADJUST CHECK Component 1080p and RGB PC Adjust will be calculated by 480i adjust value 3 2 Final assembly adjustment White Balance adjustment RS 232C functionality check Factory Option setting per destination Ship out mode setting In Stop 3 3 Etc Ship out mode Service Option Default USB Download S W Update Option Service only ISP Download Optional 4 Automat...

Page 11: ...DC Comp 480i is successful ADC Component Success is displayed and Comp480i 1080p is completed If ADC calibration is failure ADC Component Fail is displayed 6 If ADC calibration is failure after rechecking ADC pattern or condition retry calibration 7 After completing ADC Component input mode will be changed to RGB automatically 8 If ADC calibration is successful ADC RGB Success is displayed If ADC ...

Page 12: ... Analyzer CA 210 NCG CH 9 WCG CH12 2 Adj Computer During auto adj RS 232C protocol is needed 3 Adjust Remocon 4 Video Signal Generator MSPG 925F 720p 216 Gray Model 217 Pattern 78 Only when internal pattern is not available Color Analyzer Matrix should be calibrated using CS 1000 3 Equipment connection MAP 4 Adj Command Protocol 1 RS 232C Command used during auto adj Ex wb 00 00 Begin white balanc...

Page 13: ...In EZ Adj menu 6 White Balance you can select one of 2 Test pattern ON OFF Default is inner ON By selecting OFF you can adjust using RF signal in 216 Gray pattern Adj condition and cautionary items 1 Lighting condition in surrounding area Surrounding lighting should be lower 10 lux Try to isolate adj area into dark surrounding 2 Probe location LCD Color Analyzer CA 210 probe should be within 10cm ...

Page 14: ... auto check Unit fully inserted Power cord Antenna cable and A V arrive to the auto check process Connect D terminal to AV JACK TESTER Auto CONTROLLER GWS103 4 ON Perform GND TEST If NG Buzzer will sound to inform the operator If OK changeover to I P check automatically Remove CORD A V form AV JACK BOX Perform I P test If NG Buzzer will sound to inform the operator If OK Good lamp will lit up and ...

Page 15: ... files from memory 4 Updating is staring 5 Updating Completed The TV will restart automatically 6 If your TV is turned on check your updated version and Tool option explain the Tool option next stage If downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have a DTV ATV test on production ...

Page 16: ...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 IMPORTAN...

Page 17: ...on Divx_ Non_RM IC101 2 S7T_DIVX NC_43 AE1 NC_73 AF16 NC_59 AF1 NC_45 AE3 NC_40 AD14 NC_29 AD3 NC_72 AF15 NC_60 AF2 NC_57 AE15 NC_28 AD2 NC_42 AD16 NC_41 AD15 NC_58 AE16 NC_61 AF3 NC_71 AF14 NC_27 AD1 NC_39 AD13 NC_56 AE14 NC_55 AE13 NC_46 AE4 NC_31 AD5 NC_62 AF4 NC_30 AD4 NC_44 AE2 NC_66 AF8 NC_35 AD9 NC_51 AE9 NC_67 AF9 NC_53 AE11 NC_64 AF6 NC_48 AE6 NC_69 AF11 NC_32 AD6 NC_38 AD12 NC_47 AE5 NC_...

Page 18: ...uF C4044 0 1uF C261 27pF C262 27pF 3 3V_Normal R205 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 ...

Page 19: ...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 20: ...R454 9 1K R426 10K OPT L406 3 6uH NR8040T3R6N C460 10uF 25V POWER_ON OFF2_1 C440 0 1uF 16V IC407 MP2212DN 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 NCP80...

Page 21: ...8 9 10 11 12 13 OCD1B POWER_ON OFF2_1 NEC_ISP_Rx R1007 100 SW1001 JTP 1127WEM 1 2 4 3 IC1001 M24C16 WMN6T 3 3 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 ...

Page 22: ...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 23: ... R689 2 7K NON_GIP R690 0 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 C639 2 2uF 16V R6...

Page 24: ..._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 25: ... 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 26: ...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 27: ..._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 28: ...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 29: ... 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 30: ...2_FHD R620 2 47K 1 TCON_37_FHD R621 2 220K 1 TCON_37_FHD R610 2 91K 1 TCON_37_FHD R621 3 220K 1 TCON_42_FHD R637 3 51K 1 TCON_42_FHD R643 3 270K 1 TCON_42_FHD R636 3 75K 1 TCON_42_FHD R611 3 200K 1 TCON_42_FHD R622 3 11K 1 TCON_42_FHD R621 4 220K 1 TCON_47_FHD_60_LAMP R622 4 11K 1 TCON_32_FHD_60_LAMP R620 4 30K 1 TCON_47_FHD_60_LAMP R637 4 51K 1 TCON_47_FHD_60_LAMP R643 4 270K 1 TCON_47_FHD_60_LAM...

Page 31: ...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 32: ... 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 33: ...T 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 IC5001 AZ1117H ADJTRE1 EH11A 2 OUTPUT 3 INPUT 1 ADJ GND R5030 220 R5031 220 TU5001 1 HNIM10 V2 NTSC DEV_2INPUT 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_CN...

Page 34: ...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 35: ... 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 36: ...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 37: ...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 38: ...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 39: ... 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 40: ...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 41: ...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 42: ...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 43: ...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 44: ...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 45: ......

Page 46: ...ut 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 32LD450 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 No No 24 Pin is dependent ...

Page 47: ...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 48: ...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 49: ...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 R4802 or R4803 No Check Mstar LVDS Output Replace Mstar IC100 or Main Board No Check COMP_DET Signal Replace R4804 or R4805 No Check Mstar LVDS Output Replace Mstar IC100 or Main Board ok No Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for traini...

Page 50: ...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 IC100 or Main Board ok No Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 51: ...EDID data Check HDCP Key NVRAM 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 R7703 R7705 R7731 R7732 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service pu...

Page 52: ...oggle the Menu Check AMP IC IC501 Power 20V 3 3V 1 8V No Check Regulator IC404 20V Voltage is dependent on Model 26 32LD350 24V 19 22LD350 15V 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 Electro...

Page 53: ...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 54: ...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 55: ...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 JK1104 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 56: ...nal Block Audio Signal Block Flash Block Reset Flash Block Reset I2C Block I2C Block GPIO Block GPIO Block POWER Block POWER Block Overall Block Diagram Overall Block Diagram LVDS 출력 Block LVDS 출력 Block Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ...eset Switch AV1 Component 1 Y Pb Pr L R CVBS L R CS RE WE Audio L R Audio L R for RGB HDMI 4 side HDMI SPDIF DP DM 5V RX TX RX TX Micom UPD78F0513AGA 24MHz JACK PACK JACK PACK at REAR at REAR SCL SDA_3 3V LVDS RF S7 LGE101D S7 T LGE105 RS 232C CTRL SVC S W Reset TDVJ H001F Audio L R H P LCD Module FHD 60Hz LCD Module FHD M S 60Hz Mini LVDS P Gamma Power Shift Power Control I2C SCL SDA Copyright ⓒ ...

Page 58: ...MP1_Y COMP1_Pr COMP1_Pb AV_CVBS_IN SIDEAV_CVBS_I N RXCAKP RXCAKN RXA0P RXA0N RXA1P RXC1N RXA2P RXA2N D2 _HDMI1 D1 _HDMI1 D0 _HDMI1 CK _HDMI1 CEC_REMOTE CEC_REMOTE D2 _HDMI4 D1 _HDMI4 D0 _HDMI4 CK _HDMI4 IF_AGC RXCCKP RXCCKN RXC0P RXC0N RXC1P RXC1N RXC2P RXC2N RF TDVJ H031F TU_SIF TU_CVBS IF Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal U...

Page 59: ...EAV_L_IN PC_R_IN PC_L_IN Digital AMP NTP7000N SPDIF_OUT 3 3V 1K Audio L H P Audio R HP_ROUT HP_LOUT IP IF IFAGC SIFP CVBS0P IF_AGC RF TU_SIF TU_CVBS IF TDVJ H031F I2S_OUT_MCK I2S_SCK I2S_LCRK I2S_MASTER_CL K I2S_LCRH I2S_OUT_BCK I2S_OUT_WS I2S_OUT_SD Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 60: ... PF_OE PF_CE0 PF_CE1 PF_ALE PF_WE RB RE CE CLE ALE WE I O 0 I O 1 I O 2 I O 3 I O 4 I O 5 I O 6 I O 7 8 PCM_A 0 7 WP PF_AD15 F_RB PF_OE PF_CE0 PF_CE1 PF_ALE PF_WE PF WP Reset Switch Micom UPD78F0513AGA SOC_RESET HWRESET 3 3V 3 5V_ST Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ... IC501 AMP_SCL SDA EEPROM CAT24WC08W IC103 22 ohm 22 ohm Micom UPD78F0513AGA IC1002 EEPROM AT24C512BW IC1001 GPIO 174 GPIO 175 NEC_SCL SDA 22 ohm 22 ohm 3 3V_Nor 3 2k ohm 3 3k ohm 3 3V_Nor 3 2k ohm 3 3k ohm TGPIO0 TGPIO1 MAX9668ETP P GAMMA IC1601 33ohm 33 ohm TGPIO2 TGPIO3 Tuner TDVJ H001F TU5001 33ohm 33 ohm 22 ohm 22 ohm EEPROM AT24C02BN8 IC801 IC804 DDCDA_CK DDCDC_CK 22 ohm 22 ohm RGB_DDC_SCL S...

Page 62: ...ON8 RS232C MAX3232CDR UART_RX2 S7_RXD UART_TX2 S7_TXD 5V_HDMI_4 P403 or P402 POWER WAFER PWM2 PWM_DIM A_DIM PWM0 USB_DM1 USB_DM USB_DP1 USB_DP JK1204 USB JACK Error_DET GPIO 41 HP_DET GPIO 8 PM2 GPIO143 TCON0 GPIO147 TCON4 R2619 R2618 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ... USB1_OCD 50 PWM3 GPIO69 G22 SC_RE2 51 PWM4 GPIO70 G21 SC_RE1 103 GPIO51 UART1_TX F19 M_REMOTE_TX 104 GPIO50 UART1_RX F20 M_REMOTE_RX 52 SAR0 GPIO31 C6 DSUB_DET 53 SAR1 GPIO32 B6 MODEL_OPT_ 105 GPIO42 G19 MODEL_OPT_0 54 SAR2 GPIO33 C8 PCM_5V_CTL 106 GPIO41 G20 ERROR_OUT 55 SAR3 GPIO34 C7 RST_PHY 107 GPIO40 M20 SC1 COMP1_DET 56 SAR4 GPIO35 A6 RST_HUB 108 GPIO39 L20 FRC_RESET 109 GPIO38 K20 ET_RXER ...

Page 64: ...AMP NTP3100L RS232C MAX3232CDR RXD0 NEC_RXD TXD0 NEC_TXD AMP_MUT E P403 or P402 POWER WAFER INT_CTL RL_ON R2619 R2618 P74 P73 P7 1 P140 KEY1 KEY2 ANI6 ANI7 IR INTP5 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ...18 P14 RXD6 NEC_ISP_Rx 19 P13 TXD6 NEC_ISP_Tx 20 P12 SO10 POWER_ON OFF2_2 21 P11 SL10 RXD0 NEC_RXD 22 P10 SCK10 TXD0 NEC_TXD 25 ANI7 P27 KEY1 26 ANI6 P26 KEY2 27 ANI5 P25 SIDE_HP_MUTE 28 ANI4 P24 OLP 29 ANI3 P23 POWER_ON OFF1 30 ANI2 P22 MODEL1_OPT_2 31 ANI1 P21 MODEL1_OPT_3 32 P20 ANI0 SCART1_MUTE 33 P130 WIRELESS_SW_CTRL 34 P01 TI010 TO00 EDID_WP 35 P00 TI000 OPC_EN 36 P140 PCL INTP6 RL_ON 37 P1...

Page 66: ...Output Block 32 37 P801 30pin LVDS Wafer HD 60Hz LGD 19 22 LVDS TXA0 LVDS TXA1 LVDS TXA2 LVDS TXAC LVDS TXA3 Panel_Vcc 12V LVDS OUT Block Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ... RXB2 LVDS RXB3 LVDS RXB4 LVDS RXA0 LVDS RXA1 MAX17113 4CH DCDC converter IC603 TPS62110 DCDC converter IC600 MAX9668 P_GAMMA Vcom IC601 MAX17119 Level shifter IC602 Vgh_28V Vdd_16V Vcc_3 3V Vgl_ 5V Panel_Vcc 12V Enable1 For VGL Enable2 For VGH VDD Panel_Vcc 12V Enable2 For HVDD HVDD VDD_EVEN OD D VST GCLK2 4 VDD_EVEN_ODD VST 33V level AMP_SDA AMP_SCL GCLK VDD_EVEN_ODD VST 33V level T_con signal P...

Page 68: ...212DN DCDC 3A IC1101 MAX3232CDR RS 232C 3 5V_ST L404 IC1 IC2 H5PS5162FFR S6C DDR2 IC1002 UPD78F0513AGA Micom IC1001 M24C16 WMN6T EEPROM IC408 NCP803SN293 RESET IC Power_DET IC100 Main SOC S7 LGE101D S7 T LGE105 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ...Q409 AO3407A FET L402 12V 15V 5V_Normal IC408 NCP803SN293 Power_DET PANEL_VCC P403 or P402 2 4 3 1 2 IC501 NTP 7000 24V Power_DET 24V L407 P703 IC1450 AP2191SG 13 OPC P1450 USB JACK IC408 NCP803SN293 RESET IC IC409 NCP803SN293 RESET IC Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 70: ...24C512BW EEPROM 3 3V_Nor mal 3 3V_Normal L424 IC102 NAND01GW3A2CN6E Flash IC501 NTP7000 AMP IC404 AZ1117H 1 8TRE1 LDO 1 8V_AMP IC600 NTP 3100L IC402 AZ2940D 2 5TRE1 LDO 2 5V_Normal L5003 3 3V_TU IC100 Main SOC S7 LGE101D S7 T LGE105 TU6600 TDVJ H001F Tuner Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ... EDID EEPROM 5V_Norm al 5V_Normal L422 IC1105 AT24C02BN EDID EEPROM IC409 AOZ1073AIL DCDC 3A For HDMI For RGB PC L5002 5V_TU TU6600 TDVJ H001F Tuner Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...