LG 42LE5350 Page 75 Service Manual Download

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Check Cable conductors

for damage or open conductor

Check JK8401 & Signal path

Replace Jack or components

Follow procedure

‘8. All source audio’

trouble shooting guide.

16. Trouble shooting - No audio (RGB-PC)

LGE Internal Use Only

Summary of Contents for 42LE5350

Page 1: ...E CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LA02D MODEL 42LE5350 42LE5350 UB 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 MFL63283425 1008 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 9 EXPLODED VIEW 20 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: ...e 100 240V 50 60Hz Standard Voltage of each product 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 20 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety UL CSA IEC specification EMC ...

Page 7: ... 74 176 HDTV 9 1920 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 5 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 46...

Page 8: ...A X 7 1360 768 47 712 60 015 85 50 VESA WXGA X 8 1280 1024 63 981 60 020 108 00 VESA SXGA O 9 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 1080 67 500 60 148 50 H...

Page 9: ...justment Component 480i 1080p RGB PC 1080p EDID downloads for HDMI and RGB PC Remark Above adjustment items can be also performed in Final Assembly if needed Adjustment items in both PCBA and final assembly stages can be checked by using the INSTART Menu 1 ADJUST CHECK 3 2 Final assembly adjustment White Balance adjustment RS 232C functionality check Factory Option setting per destination Ship out...

Page 10: ...on click 1 Load button click 2 for MAC Address write Start MAC Address write button 3 Check the OK Or NG 4 2 2 3 Input the ESN Key download Model sending Key file input by 1 by SET so as not to be duplicated 4 3 LAN PORT ESN INSPECTION Automatic IP 4 3 1 Equipment Condition Each other connection to LAN Port of IP Hub and Jig 4 3 2 LAN inspection solution LAN Port connection with PCB Network settin...

Page 11: ...PORT INSPECTION PING TEST 4 4 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program IP Number 12 12 2 2 4 4 2 LAN PORT inspection PING TEST 1 Play the LAN Port Test Program 2 connect each other LAN Port Jack 3 Play Test F9 button and confirm OK Message 4 remove LAN CABLE ...

Page 12: ...t is a realization of Plug and Play 2 Equipment Since embedded EDID data is used EDID download JIG HDMI cable and D sub cable are not need Adjust by using remote controller 3 Download method 1 Press Adj key on the Adj R C 2 Select EDID D L menu 3 By pressing Enter key EDID download will begin 4 If Download is successful OK is display but If Download is failure NG is displayed 5 If Download is fail...

Page 13: ...j 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 4 Equipment connection 5 Adj Command Protocol 1 RS 232C Command used during auto adj 2 Adjustment Map 6 Adj method Auto adj method 1 Set TV in adj mode using ...

Page 14: ...wer Country option select US CA MX Selection is done using KEY 3 Tool Option Inspection Press Adj key on the Adj R C and then check Tool option 5 3 Local dimming inspection Optional 5 3 1 Edge LED models with local dimming 1 Press TILT key of the Adj R C and check moving patterns The black bar patterns moves from left to right If local dimming function does not work a whole screen shows full white...

Page 15: ... 2 Connect the AV JACK Tester 3 Controller GWS103 4 on 4 GND Test Auto If Test is failed Buzzer operates If Test is passed execute next process Hi pot test Remove A V CORD from A V JACK BOX 5 HI POT test Auto If Test is failed Buzzer operates If Test is passed GOOD Lamp on and move to next process automatically 6 2 Checkpoint TEST voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 100mA TEST time 1 ...

Page 17: ...g 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 18: ...GB Success is displayed If ADC calibration is failure ADC RGB Fail is displayed 12 If ADC calibration is failure after recheck ADC pattern or condition retry calibration 5 2 Manual White balance Adjustment 5 2 1 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 Color...

Page 19: ...T mode 2 Select the 13 V Com 3 At the V Com adjustment Mode use F G Key and adjust V Com voltage Refer to Picture After finding minimum point of Flicker save data using A OK Key 4 Exit 5 4 Speaker output check 5 4 1 Audio input condition 1 RF input Mono 1KHz sine wave signal 100 Modulation 2 CVBS Component 1KHz sine wave signal 0 4Vrms 3 RGB PC 1KHz sine wave signal 0 7Vrms 5 4 2 Specification ...

Page 20: ...ectrical and 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 manufact...

Page 21: ...G 7L RD3 E LUG S 5L RD3 O SPRING_1 5M WH3 O SPRING 4N RD3 CONTACT 5N RD3 O SPRING_2 6N RD3 E LUG 6D GN2 E LUG 5D GN2 O SPRING 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 SPRING 4C RD1 CONTACT 5C RD1 O SPRING 6C RD1 E LUG C113 27pF 50V D3 3V C114 27pF...

Page 22: ...AT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 2 100 HDMI_POWER 09 10 xx GP2_BCM_ATSC Q200 AO3438 DEV EBK60752601 G D S R202 10K D1 8V C201 4 7uF OPT C200 4 7uF 10V OPT POWER_ON OFF2_1 R201 0 R200 120K OPT 1 8V_HDMI HDMI SWITCH 1 8V POWER 1 8V FOR HDMI SW Seperated from Common sheet83 N America Korea only use 1 8V control ...

Page 23: ... 8 NC R318 0 C314 0 1uF USB_DP1 10 D4 Q302 MMBT3904 F OPT E B C SIDE_HP_DET 9 G3 C313 0 1uF USB_PWRFLT2 10 D4 3 5V_ST L300 MLB 201209 0120P N2 120 ohm USB_DM1 10 D4 P301 KJA UB 4 0004 EAG41945401 1 2 3 4 5 SIDE_HP_MUTE Q23 81 I4 C309 100uF 16V C310 100uF 16V R324 10K OPT SDA3_3 3V SCL3_3 3V WIRELESS_SDA WIRELESS_SCL 3 3V_NORMAL FDV301N Q304 OPT G D S FDV301N Q305 OPT G D S R321 2 7K R322 2 7K R315...

Page 24: ...HAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 09 10 xx SIDE_GENDER_LINE 4 100 SIDE GENDER LINE R402 75 SIDE_COMP_Pb 86 M22 R401 75 R400 82 C402 0 1uF SIDE_COMP_Y 86 M25 C400 0 1uF C401 0 1uF SIDE_COMP_Pr 86 M21 SIDE_COMP Y 11 C4 11 D4 SIDE_COMP Pr 11 C4 11 D4 SIDE_COMP Pb 11 C4 11 D4 SIDE COMPONENT LINE CLOSE TO MAIN IC ...

Page 25: ... GAS12 3 MDS61887708 GAS5 2 MDS61887710 GAS3 3 MDS61887708 GAS11 2 MDS61887710 GAS10 3 MDS61887708 GAS6 2 MDS61887708 GAS2 2 MDS61887710 GAS8 3 MDS61887708 GAS8 2 MDS61887708 GAS12 2 MDS61887710 GAS6 3 MDS61887710 GAS4 3 MDS61887708 GAS10 2 MDS61887708 GAS9 2 MDS61887710 GAS11 3 MDS61887710 GAS2 3 MDS61887708 GAS7 2 MDS61887708 GAS1 2 MDS61887708 GAS4 2 MDS61887710 GAS9 3 GASKET on the Bottom SMD ...

Page 26: ... C636 10uF C626 0 1uF DDR01_CKE DDR0_DQS0b B4 DDR01_BA1 B2 C2 E5 G5 I3 I2 DDR01_ODT B1 E6 F3 G6 I4 I3 DDR01_BA1 B2 C2 E5 F2 I3 I2 DDR01_BA1 B2 C2 F2 G5 I3 I2 DDR1_VREF0 C663 470pF DDR01_A 7 13 C648 470pF DDR01_RASb DDR01_A 7 13 DDR1_CLK B2 G5 D1 8V DDR_VTT DDR01_BA1 D1 8V DDR01_CKE B1 D2 F2 G5 I4 I2 DDR01_ODT B1 D3 F3 G6 I4 I3 DDR01_A 7 13 C619 0 1uF DDR0_DQS1 B4 DDR0_DM0 B4 AR615 75 DDR01_A 0 3 C...

Page 27: ...B 3 3V_TU C706 0 1uF 16V CHB 5V_TU R714 0 NON_CHB R701 0 CHB R734 0 NON_CHB CVBS_CHB 1 8V_TU C718 2 2uF 16V L702 500 C717 2 2uF 16V C724 0 1uF 50V 1 26V_TU 3 3V_TU 22uF C722 IC700 AP1117EG 13 ADJ GND OUT IN C723 22uF 10V L703 BLM18PG121SN1D R721 1 R718 120 R710 0 R717 0 CHB R735 200 CHB R731 200 CHB R732 470 R737 82 5V_NORMAL TU700 TDVJ H031F TUNER_NON_CHB_V DEV 14 3 3V 13 1 2V 5 N C 12 GND 11 CVB...

Page 28: ...24 SF_SCK M25 SF_CSB M26 SIDE_COMP_DET 3 3V_NORMAL R654 0 R657 22 SCL3_3 3V R655 0 OPT SDA3_3 3V IC601 M24M01 HRMN6TP EAN60771501 DEV 3 E2 2 E1 4 VSS 1 NC 5 SDA 6 SCL 7 WP 8 VCC C601 0 1uF R658 22 R653 0 OPT R656 4 7K R622 0 WIRELESS WIRELESS_SDA 3 C5 87 U20 SCL3_3 3V SDA3_3 3V R623 0 WIRELESS WIRELESS_SCL 3 C5 87 U20 IC901 NAND04GW3B2DN6E MAIN_FLASH_4G_NUMONYX EAN61009301 DEV 26 NC_17 27 NC_18 28...

Page 29: ...R166 5 1 SIDE_LR_INCM REAR_AV_LR_INCM IC900 LGE3549XQ B2 VERSION DEV EAN60345904 PKT0_CLK C25 PKT0_DATA C24 PKT0_SYNC B26 RMX0_CLK A25 RMX0_DATA A26 RMX0_SYNC B25 VDAC_AVDD2P5 AA20 VDAC_AVDD1P2 AD22 VDAC_AVDD3P3_1 AE22 VDAC_AVDD3P3_2 AE23 VDAC_AVSS_1 W16 VDAC_AVSS_2 Y17 VDAC_AVSS_3 Y18 VDAC_AVSS_4 Y19 VDAC_RBIAS AF24 VDAC_1 AF22 VDAC_2 AE21 VDAC_AVSS_5 AD21 VDAC_VREG AF23 BSC_S_SCL F23 BSC_S_SDA F...

Page 30: ...2 AA14 SD_V3_AVDD2P5 AC15 SD_V2_AVSS Y14 SD_V3_AVSS_1 W13 SD_V3_AVSS_2 Y13 SD_V4_AVDD1P2 AA13 SD_V4_AVDD2P5 Y11 SD_V4_AVSS Y12 SD_R AB12 SD_G AC11 SD_B AF11 SD_INCM_B AE11 SD_Y1 AE17 SD_PR1 AC17 SD_PB1 AD17 SD_INCM_COMP1 AF17 SD_Y2 AE18 SD_PR2 AF19 SD_PB2 AD18 SD_INCM_COMP2 AF18 SD_Y3 AE16 SD_PR3 AD16 SD_PB3 AC16 SD_INCM_COMP3 AF16 SD_L1 AF12 SD_C1 AE12 SD_INCM_LC1 AC12 SD_L2 AC13 SD_C2 AD13 SD_IN...

Page 31: ...VDDC_28 U19 VDDC_29 V19 AGC_VDDO V24 VDDO_1 W11 VDDO_2 W12 VDDO_3 W17 VDDO_4 W18 VDDO_5 E26 VDDO_6 L26 VDDO_7 T26 DDRV_1 A9 DDRV_2 G9 DDRV_3 G11 DDRV_4 G13 DDRV_5 A14 DDRV_6 G15 DDRV_7 G17 DDRV_8 A19 DDRV_9 G19 IC900 LGE3549XQ B2 VERSION EAN60345904 DEV DVSS_1 T6 DVSS_2 J7 DVSS_3 K7 DVSS_4 L7 DVSS_5 M7 DVSS_6 T7 DVSS_7 AA7 DVSS_8 T8 DVSS_10 AA8 DVSS_11 D9 DVSS_12 W9 DVSS_13 Y9 DVSS_14 K10 DVSS_15 ...

Page 32: ... 1M C1509 0 1uF C1542 22pF C1535 0 1uF R1515 100 C1512 0 1uF C1541 22pF R1521 22 TW9910_CLK E5 C1513 0 1uF C1540 0 1uF R1505 100 VSB_RESET 9 G4 R1516 1M 1 8V_ADC X1502 25MHz C1539 0 1uF C1534 0 1uF TW9910_RESET 9 G3 C1538 0 1uF VSB_CLK E7 E1 C1537 0 1uF 1 8V_CHB C1530 0 1uF C1528 0 1uF 3 3V_NORMAL C1518 0 1uF R1509 22 OPT R1503 1K R1508 22 OPT X1503 27MHz VSB_VALID E7 G2 VSB_DATA E7 G2 VSB_CLK E7 ...

Page 33: ...AL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 09 10 xx MOTION_REMOCON 20 100 GP2_BCM_ATSC 3 3V_NORMAL R2001 100 M_REMOTE_RX 9 F3 9 G4 M_REMOTE_TX 9 F3 9 G4 R2002 100 L2000 BLM18PG121SN1D 120 ohm R2005 2 7K 3 3V_NORMAL R2000 100 M_RFModule_RESET 9 F3 9 G4 P2000 12507WR 08L M_REMOTE 1 2 3 4 5 6 7 8 9 DC 9 F3 9 G3 R2003 100 R2004 100 DD 9 F3 9 G3 R2006 2 7K R2007 2 7K Motion Remocon Interface Mot...

Page 34: ...N_GIP C7408 0 1uF 50V MINI_LVDS CLK6 VGL_I GOE GCLK1_I VGI_P VGL 5V H_CONV RXC1 GMA15 VCOML R7404 3 3K NON_GIP RXB0 GMA16 VST CLK4 GMA9 GMA4 Z_OUT RXB1 CLK5 RXA1 HVDD GMA12 RXA0 VCOMR R7420 0 MINI_LVDS R7421 0 OPT R7422 0 MINI_LVDS R7423 0 OPT C7403 1uF 50V MINI_LVDS C7406 1uF 50V MINI_LVDS P7400 104060 6017 MINI_LVDS 1 GND 2 GMA1 3 GMA3 4 GMA4 5 GMA6 6 GMA7 7 GMA9 8 GMA10 9 GMA12 10 GMA13 11 GMA1...

Page 35: ...4 RXB3 RXA2 R7706 0 OPT R7702 0 R7708 0 OPT RXCCK RXB1 RXC2 RXA0 RXD3 RXCCK SCAN_BLK1 OPC_OUT RXB4 RXA1 R7712 10K VESA RXBCK RXC1 R7710 10K 8BIT R7707 0 OPT RXC1 R7700 0 NON_LGD_22 NON_LED OPC_OUT RXC0 RXA1 RXA2 RXB2 RXACK RXD0 RXD2 R7701 0 NON_LGD_22 NON_LED RXC3 P7701 TF05 41S FRC_LVDS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ...

Page 36: ..._23_GND R8014 0 POWER_24_GND R8076 0 POWER_23_42 47_LOCAL_DIM M2_MOSI R_VS R8078 0 POWER_16_42 47_LOCAL_DIM M2_SCLK R8077 0 POWER_20_42 47_LOCAL_DIM L_VS R_VS M2_SCLK MO_SCLK M2_MOSI MO_MOSI C8001 100uF 25V C8003 0 1uF 50V C8005 0 1uF 50V C8009 0 1uF 50V C8010 10uF 25V OPT C8022 0 1uF 50V C8002 10uF 25V C8013 4 7uF 50V R8081 100 R8079 100K IC8008 NCP803SN293 1 GND 3 VCC 2 RESET R8061 24K 1 POWER 2...

Page 37: ...130 34 P01 TI010 TO00 35 P00 TI000 36 P140 PCL INTP6 37 P120 INTP0 EXLVI 38 P41 39 P40 40 RESET 41 P124 XT2 EXCLKS 42 P123 XT1 43 FLMD0 44 P122 X2 EXCLK OCD0B 45 P121 X1 OCD0A 46 REGC 47 VSS 48 VDD R8106 10K R8185 20K 1 16W 1 C8104 0 1uF R8184 47K 3 5V_ST NEC_ISP_Tx NEC_RXD R8128 22 NEC_EEPROM_SCL SCART1_MUTE R8133 22 R8110 10K LCD OLED R8104 10K NEC_TXD R8181 10K OPT R8145 22 X8101 32 768KHz R818...

Page 38: ...07 22 COMMERCIAL 3 5V_ST D8200 5 6V AMOTECH R8214 47K COMMERCIAL_EU Q8201 2SC3052 E B C R8200 22 Q8203 2SC3052 WIRELESS E B C R8205 47K R8220 47K COMMERCIAL R8202 47K C8211 1000pF 50V R8203 10K D8206 5 6V AMOTECH R8276 1 5K KEY1 3 5V_ST R8211 10K 1 3 3V_NORMAL Q8200 2SC3052 E B C L8202 BLM18PG121SN1D NEC_EEPROM_SCL NEC_EEPROM_SDA D8209 5 6V JK8200 XRJV 01V D12 180 1 2 3 4 5 6 7 8 D1 D2 D3 D4 9 L82...

Page 39: ...G R8337 0 GND R8307 0 HDMI_HPD_1 GND DDC_SCL_4 D8304 5 5V OPT HDMI_HPD_2 GND SDA2_3 3V DDC_SDA_3 5V_HPD1 GND R8300 1K R8317 0 5V_HDMI_2 5V_HDMI_1 R8315 47K HDMI_3 D2 _HDMI3 D1 _HDMI1 CK _HDMI2 JK8303 KJA ET 0 0032 EAG42463001 14 NC 13 CE_REMOTE 5 D1_GND 20 JACK_GND GND 12 CK 11 CK_GND 2 D2_GND 19 HP_DET 18 5V 10 CK 4 D1 1 D2 17 GND 9 D0 8 D0_GND 3 D2 16 DDC_DATA 7 D0 6 D1 15 DDC_CLK C8317 0 1uF 16...

Page 40: ...3 D3B 14 VCC P8400 SPG09 DB 010 1 RED 2 GREEN 3 BLUE 4 GND_1 5 DDC_GND 6 RED_GND 7 GREEN_GND 8 BLUE_GND 9 NC 10 SYNC_GND 11 GND_2 12 DDC_DATA 13 H_SYNC 14 V_SYNC 15 DDC_CLOCK 16 SHILED R8401 22 DSUB_B PC_L_IN 5V_NORMAL R8414 2 7K R8411 470K R8419 0 DSUB_G R8402 22 DSUB_DET R8413 2 7K R8409 0 R8410 0 R8408 0 R8423 0 OPT R8425 1K R8424 10K R8421 0 R8417 0 C8402 22pF 50V OPT C8403 22pF 50V OPT R8405 ...

Page 41: ... 50V C8603 27pF 50V C8605 47pF 50V 0 R8603 D8601 5 6V R8605 10K 3 3V_NORMAL C8600 100pF 50V R8608 1K C8611 100pF 50V R8601 470K D8602 5 6V R8606 0 C8607 1uF 25V R8607 0 R8602 470K C8606 1uF 25V D8603 5 6V C8612 100pF 50V C8608 27pF 50V C8601 27pF 50V L8600 270nH R8604 1K 3 3V_NORMAL C8604 100pF 50V D8606 5 6V R8600 10K D8607 5 5V D8604 5 5V D8605 5 5V SIDE_COMP_INCM C8613 0 1uF R8609 36 JK8601 KJA...

Page 42: ...4V 20V 17V _6 15 UART_RX 20 GND_6 21 SHIELD 24V R8700 0 WIRELESS C8701 2 2uF R8711 4 7K OPT C8703 0 1uF R8713 1K IC8700 MC14053BDR2G WIRELESS 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 R8704 22K R8709 0 1 4W 3216 R8712 47K OPT R8706 0 NON_WIRELESS R8708 0 WIRELESS C8700 0 1uF 50V WIRELESS_TX WIRELESS_SCL R8714 10K R8707 0 WIRELESS WIRELESS_DL_RX 3 3V_NORMA...

Page 43: ...T C8838 390pF 50V R8823 4 7K L8800 BLM18PG121SN1D R8805 100 D8803 100V 1N4148W OPT C8815 10uF 10V OPT 0 1uF C8843 50V 0 1uF C8844 50V 3 3V_NORMAL R8808 100 R8801 100 POWER_DET R8813 12 R8816 12 C8801 10uF 10V OPT 0 1uF C8833 50V R8817 12 C8835 390pF 50V R8807 0 OPT 0 1uF C8841 50V R8824 0 SPK_OUTPUT_RESISTER R8802 100 SDA1_3 3V R8804 100 C8804 0 1uF 16V D8800 100V 1N4148W OPT R8810 10K C8821 1000p...

Page 44: ...8903 1000pF OPT FRC_MCLK DDR3_CKE DDR3_RESETB FRC_A 9 DDR3_CASB R8900 1K 1 C8914 0 1uF D1 5V_DDR3 FRC_DMU DDR3_BA2 FRC_A 3 C8904 0 1uF 16V 1 5V_MEMC R8923 10K FRC_A 1 DDR3_DQSUB FRC_A 7 C8920 0 1uF C8926 0 1uF DDR3_CKE DDR3_BA1 C8923 0 1uF FRC_DQL 0 DDR3_RASB 1 5V_MEMC 3 3V_MEMC C8934 10uF 25V C8937 2200pF 3 3V_MEMC 12V R8928 10K C8944 0 1uF 16V C8942 22uF 10V L8905 3 6uH NR8040T3R6N C8932 10uF 25...

Page 45: ...4 DDR2_CASZ R4 DDR3_A5 DDR2_A10 G1 DDR3_A6 DDR2_A0 U5 DDR3_A7 DDR2_A5 F3 DDR3_A8 DDR2_A2 T5 DDR3_A9 DDR2_A9 F1 DDR3_A10 DDR2_A11 R6 DDR3_A11 DDR2_A4 R5 DDR3_A12 DDR2_A8 T6 DDR3_BA0 DDR2_BA2 G3 DDR3_BA1 DDR2_ODT U4 DDR3_BA2 DDR2_A12 E1 DDR3_MCLK DDR2_MCLK U1 DDR3_MCLKZ DDR2_MCLKZ U2 DDR3_CKE DDR2_RASZ T4 DDR3_ODT DDR2_BA1 H2 DDR3_RASZ DDR2_WEZ J1 DDR3_CASZ DDR2_CKE H3 DDR3_WEZ DDR2_BA0 H1 DDR3_RESE...

Page 46: ...OPT C9111 1uF 50V C9135 OPT R9121 0 GIP R9164 0 GIP SOE R9148 1 0 GIP R9155 1 0 GIP L9100 6 8uH DEV MINI_LVDS IC9103 MAX17113ETL DEV MINI_LVDS EAN60924401 3 GND2 2 DRVP 4 SRC 1 THR 6 DRN 5 GON 7 MODE 8 DLP 9 FBP 10 GPGND 11 CTL 12 DRVN 13 AGND 14 FBN 15 REF 16 DEL1 17 FB2 18 BST 19 LX2 20 LX2 21 OUT 22 IN2 23 IN2 24 VIN 25 FSEL 26 EN1 27 DEL2 28 VL 29 EN2 30 PGND 31 PGND 32 LX1 33 LX1 34 SW1 35 SW...

Page 47: ...OOT FLASH GPIO ATSC_TUNER BLANK LG_LOGO_LE9500 BLANK BCM DDR Must be included in any PCB BLANK BLANK BLANK BLANK BLANK BLANK NECESSARY SHEET 079 LED DRIVER WAFER SHEET 098 RGB SPDIF LG5111 L D from URSA3 SHEET 099 SHEET 083 SHEET 093 MICOM SHEET 089 URSA3 DDR POWER POWER SHEET 087 SHEET 084 AMP_NTP7000 SHEET 091 SIDE_GENDER SHEET 081 SHEET 092 IR 232C EHTERNET T CON NO L D SHEET 088 SHEET 094 LG51...

Page 48: ......

Page 49: ...sion LCD TV AT1 Gr GP2 BCM ATSC trouble shooting guide Applied chassis LA02D Applied models 32 42 47 55LE5400 UC Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 50: ...K PACK JACK PACK at REAR at REAR JACK PACK JACK PACK at SIDE at SIDE SCL SDA_3 3V SCL SDA_3 3V LCD Module USB2 Wireless Ready Power IF SIF TU_CVBS Reset IF_AGC SDA SCL_5V RF TDVJ H031F DP DM 5V MCLK Y Pb Pr L R Side Component Gender Ethernet LG5111 Local dimming LGE7378P FRC T CON DDR2 128Mbit DDR2 128Mbit DDR2 128Mbit HP_L R DDR3 1Gbit Hynix LVDS_60Hz LVDS_120Hz MINI_LVDS_120Hz LGE3549 ATSC LGE35...

Page 51: ...CLK_P HDMI_RX_0_CLK_N HDMI_RX_0_DATA0_P HDMI_RX_0_DATA0_N HDMI_RX_0_DATA1_P HDMI_RX_0_DATA1_N HDMI_RX_0_DATA2_P HDMI_RX_0_DATA2_N HDMI_RX_0_DDC_SCL HDMI_RX_0_DDC_SDA HDMI_RX_0_RESREF HDMI_RX_1_RESREF 499Ω_1 499Ω_1 A2 5VI TMDS DDC HPD_1 HDMI 2 HDMI 3 HDMI 4 HDMI 4x1 Switch TDA19997 IF MAIN CVBS MAIN IF MAIN EDSAFE_IF_P EDSAFE_IF_N SD_CVBS1 V_sync RGB_VSYNC TMDS DDC HPD_2 TMDS DDC HPD_3 TMDS DDC HPD...

Page 52: ...TPA6132 HP AMP TPA6132 HP AMP SD_SIF1 AV1 Audio Rear REAR_AV_L_IN REAR_AV_R_IN AUDMX_LEFT3 AUDMX_RIGHT3 Comp1 Audio Rear COMP1_L_IN COMP1_R_IN AUDMX_LEFT2 AUDMX_RIGHT2 Comp2 Audio Rear AUDMX_LEFT4 AUDMX_RIGHT4 1 IOP Edge LED models AV2 or Comp3 Audio Used in common 2 Lamp models AV2 Audio SIDE_AV_L_IN SIDE_AV_R_IN COMP2_L_IN COMP2_R_IN RGB PC Audio AUDMX_LEFT5 AUDMX_RIGHT5 PC_L_IN PC_R_IN Copyrigh...

Page 53: ... VST 3 3V level Enable2 DPM for HVDD Vin_12V Vgh_28 V Vdd_16 V Vcc_3 3V HVDD Vgl_ 5V Source Driver IC HVDD Vdd Vcc GMA gamma voltage V COM GCLK VDD_EVEN_ODD VST 33V level 60 pin 60 pin Left Right mini LVDS 6pairs GCLK VDD_EVEN_ODD VST 33V level VCOM GMA gamma voltage Vgh Vdd Vcc Vgl HVDD T_con signal POL SOE 4 M S block Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and s...

Page 54: ...play Control with 120Hz FRC To panel Left mini LVDS signals data 10 clk 2 Left mini LVDS signals data 10 clk 2 Right mini LVDS signals data 10 clk 2 Right mini LVDS signals data 10 clk 2 T CON TIMING CONTROL SIGNALS H_CONV OPT_N POL GCLLK1 6 To MAX17119 GIP module only Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 55: ...MICOM UPD78F05 IC18101 MICOM UPD78F05 DDC_I2C_1 2 3 4 HPD HPD_1 2 3 4 HDMI_CEC TDA19997 HDMI 4x1 Switch IC900 TDA19997 HDMI 4x1 Switch IC900 5V_HDMI_1 2 3 4 HDMI_5V Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 56: ...P1 USB_DM1 USB PWR Switch IC302 D3 3V USB_PWRFLT_1 USB_PWRON_1 5V USB2 USB_DP2 USB_DM2 5V_USB USB_DP2 USB_DM2 USB PWR Switch IC301 D3 3V USB_PWRFLT_2 USB_PWRON_2 5V Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ...er 0xC2 MICOM UDP78F 0x52 MICOM UDP78F 0x52 HDMI Switch TDA19997 0xC0 HDMI Switch TDA19997 0xC0 NVRAM M24M01 0xA8 NVRAM M24M01 0xA8 I2C1_3 3V P GAMMA WIRELESS MEMC_240 P GAMMA WIRELESS MEMC_240 FRC URSA3 0xB4 FRC URSA3 0xB4 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 58: ...LGE3549 RS232C Switch RS 232C MAX3232 RX TX WIRELESS_RX TX BCM_RX TX Between LGE3549 WIRELESS_DETECT Wireless RX Sink HDMI Input TMDS 8 To TDA19997 CEC To UPD78F05 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ... Audio L R RGB Composite Component HDCP KEY ROM DDR3 128M x8 DDR3 128M x8 Saturn 7 SC424 DC DC LVDS MP2212 DC DC 1 26 MP2212 DC DC 3 3 MP2212 DC DC 1 5 HDMI 1 2 3 HDMI IR BLASTER MICOM RGB SPDIF TX PWR wireless TX HDMI 4 WIRELESS COMP2 AV1 HDMI1 HDMI2 HDMI3 HDMI4 RGB POWER TOUCH I F Micom COMP1 AV2 Power LED board LG Logo board Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for traini...

Page 60: ...C DE IDCK I2S 4line SPDIFO I2C 2line DDC 2line TMDS 8line RST INT INT VCXO VCXO Video PLL Video DAC Audio PLL Audio DAC I2 C I2C ACLK VCLK Micom RST CEC ADCI_P N ADCQ_P N PCLK_P N DACI_P N DACQ_P N RF Control SLEEP XTAL 3 6864MHz OSC 54MHz MCLK SCK W S I2C 2line Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ... 1 2V IC8003 1 8V IC8004 2 5V IC8005 3 3V Replace IC8001 3 4 5 Re download Micom software Check Micom Voltage IC8101 pin 48 3 5V Replace L8003 Check LVDS Power Voltage Q8004 12V Replace Q8004 Check FRC IC9001 LVDS Output Replace FRC IC9001 or Main Board Change Module ok ok ok ok ok ok ok ok ok ok No No No No No No No No OK No Check X1001 Clock 54 MHz Replace X1001 ok No Replace Power board ok Chec...

Page 62: ...Tuner 5V Power L700 Check IC8003 Check FRC and BCM LVDS Output Replace Mstar IC9001 or BCM IC900 or Main Board ok ok ok ok ok No No No No No Replace IC8003 No Bad Tuner Replace Tuner Replace L8007 ok 2 Trouble shooting No video Digital TV video Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ...S Signal TU700 11 Pin Replace IC700 Check Tuner 5V Power L700 Check IC8003 ok ok ok ok ok No No No No No Replace IC8003 No Bad Tuner Replace Tuner Replace L8007 ok Check FRC and BCM LVDS Output Replace Mstar IC9001 or BCM IC900 or Main Board Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 64: ...ine Rear AV R105 R904 Side AV R919 R8603 ok ok ok No Replace Jack ok Check CVBS_DET Signal Rear AV Detect R113 Side AV Detect R8608 Replace R113 or R8608 No No Check FRC and BCM LVDS Output Replace LGE7378A IC9001 or LGE3549XS IC900 or Main Board Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ...nal Line ok ok ok No Replace Jack Check COMP_DET Signal Replace R119 or R129 No ok No Check FRC and BCM LVDS Output Replace Mstar IC9001 or BCM IC900 or Main Board 5 Trouble shooting No video Component Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ...nc R G B Signal Line R8408 R8409 R8410 ok ok ok No No Re download EDID data or Replace the defective IC ok Replace Jack Check DSUB_DET Replace R8425 No ok No Check FRC and BCM LVDS Output Replace Mstar IC9001 or BCM IC900 or Main Board 6 Trouble shooting No video RGB PC Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ...eck HDMI Signal output of HDMI Switch IC8300 Check resister R8329 R8334 If no problem check signal line No Replace BCM IC900 or Main Board No Check HDMI_DET HPD No ok Replace R8300 R8302 R8301 R8316 Check L8300 3 3V Q200 1 8V Replace the defective IC No OK ok No Check FRC and BCM LVDS Output Replace Mstar IC9001 or BCM IC900 or Main Board Copyright ⓒ 2010 LG Electronics Inc All right reserved Only...

Page 68: ...nning or Non Scanning ok ok ok No No ok Correct HW option Æ Check FRC output data Is it ok Replace the FRC No Check the serial Flash Is it ok No ok Replace the serial Flash Check the BCM3949 No Replace the LVDS wafer No No Check the DC DC Converter Replace the X TAL ok Check LVDS wafer Is it ok ok Check LVDS cable Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service...

Page 69: ...0 R9131 Check VGH 25V No good No good Replace IC9003 No good OK OK Check HVDD Check IC9102 each pin esp R9126 R9127 R9128 No good Replace IC9102 No good OK No good OK Check output data OK Replace P Gamma IC IC9100 No good Check VDD_ODD VDD_EVEN CLK1 6 GCLK1 6 Check IC9101 Each power No good Replace IC9101 No good OK Check Module Or LG5111 LGE7378A OK 7 9 16 2 5 3 28 N A 120Hz Edge 55 7 7 15 5 5 28...

Page 70: ...e and connector damage Replace speaker ok No Off Toggle the Menu Check AMP IC IC8801 Power 20V 3 3V 1 8V No Check Regulator IC8800 Check Mstar I2S Output R8801 R8802 R8803 No Check signal line Or replace BCM IC900 Check AUDIO_MASTER_CLK R8828 No Replace BCM IC900 or Main Board ok Check AMP I2C Line R8804 R8805 No Check signal line Or replace BCM IC900 Copyright ⓒ 2010 LG Electronics Inc All right ...

Page 71: ...C700 Check Tuner 5V Power L700 ok ok ok ok No No No Bad Tuner Replace Tuner Check IC8003 No Replace IC8003 No Replace L8007 ok 12 Trouble shooting No audio Digital TV audio Follow procedure 8 All source audio trouble shooting guide ok Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 72: ...8003 No Replace L8007 ok 13 Trouble shooting No audio Analog TV audio Check TU_SIF path Including Q701 TR buffer to LGE3549 ok Check SIF Signal TU700 9th Pin ok No Bad Tuner Replace Tuner Follow procedure 8 All source audio trouble shooting guide ok No Replace component Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 73: ...100 No ok Check Audio Master clock AUD_LRCH AUD_LRCK AUD_SCK AMP pin17 18 19 Replace BCM3549 Check JK100 No ok Check Audio AMP voltage 1 8V_AMP 3 3V_NORMAL 24V_AMP ok ok Check output L8804 L8805 AMP output ok Replace Audio AMP NTP7000 No Follow procedure refer to Audio signal block Diagram Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Us...

Page 74: ... Cable for damage or open conductor Check JK100 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 75: ...401 Signal path ok No ok Replace Jack or components Follow procedure 8 All source audio trouble shooting guide 16 Trouble shooting No audio RGB PC Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 76: ...Check JK8400 SPDIF_OUT Signal 5V ok No Replace Jack 17 Trouble shooting No audio SPDIF ok Replace IC900 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 77: ... Mute Pin 13 Check Audio OSD Audio OSD active or inactive mode Check R1058 R900 JK300 No active Check Earphone output Pin 5 16 ok No Replace IC300 TPA613A2 ok Follow procedure refer to Audio signal block Diagram Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 78: ...eck 5V voltage level at Bead or Jack Y Replace one of IC301 or IC302 and then check N Maybe BCM3549 IC900 has problems Replace It Exception USB power could be disabled by inrushing current In this case remove the device and try to reboot the TV AC power off on Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 79: ...4 Y Check LAN Port LED N Replace one of LAN Port Recheck Y Maybe BCM3549 LAN PHY block has problems Replace It N Check LAN Cable Recheck LAN Cable N Y Check MAC Address Replace Main B D N Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 80: ...09 Soldering state Check R8709 24V ok ok ok No No Replace Jack ok Check power board Check Wireless _DET Check R8713 3 3V Replace Jack 3 3V Low No Check IC8700 11 10Pin Replace Jack recheck Wireless media box dongle Replace BCM IC900 or Main Board High Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 81: ...tion 4 Y Check the Tool Option 5 N Correct the Tool Option2 using reference file GP2_BBTV_US_KR_Tool option v1 3 N Correct the Tool Option3 using reference file GP2_BBTV_US_KR_Tool option v1 3 N Correct the Tool Option4 using reference file GP2_BBTV_US_KR_Tool option v1 3 N Correct the Tool Option5 using reference file GP2_BBTV_US_KR_Tool option v1 3 Reference file Copyright ⓒ 2010 LG Electronics ...

Page 82: ...k Refer to next page 2 ADC Data This menu supports manual ADC adjustment for COMP 480i COMP 1080P RGB 3 Power Off Status You can check previous power off history with this menu 4 5 System There are various sub menus for TV system setting 6 Model Number D L You can change TV System s model name Serial Number manually 7 Test Option 8 External ADC You can adjust external Analog to Digital Converting ...

Page 83: ...ance adjustment OK NG 4 Adjust ADC This dialog box shows the result of ADC OK NG If you have external device as master you can adjust ADC at External ADC menu 5 EDID This dialog box shows the status of EDID Download Adjust Check 1 Country Group Press OK to Save Country Group Code Country Group Country 2 Tool Option Tool Option1 Tool Option2 Tool Option3 Tool Option4 Tool Option5 3 Adjust White Bal...

Page 84: ...n The latest S W put in the LG DTV folder of USB Memory USB connects to USB jack for service The SW update is finished please check new SW version by in start menu Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

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