LG 43LH5700 Page 1 Service Manual Download

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Printed in Korea

P/NO : MFL69442202 (1602-REV00)

CHASSIS : LA66L

MODEL : 43LH5700

43LH5700-UD

MODEL :

49LH5700

49LH5700-UD

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

LED TV

SERVICE MANUAL

Internal Use Only

Summary of Contents for 43LH5700

Page 1: ...a P NO MFL69442202 1602 REV00 CHASSIS LA66L MODEL 43LH5700 43LH5700 UD MODEL 49LH5700 49LH5700 UD CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL Internal Use Only ...

Page 2: ...ll rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 BLOCK DIAGRAM 17 EXPLODED VIEW 18 SCHEMATIC CIRCUIT DIAGRAM APPENDIX TROUBLESHOOTING APPENDIX ...

Page 3: ...inals etc to be sure the set is safe to operate 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 m...

Page 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial 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...

Page 5: ...he 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 replace...

Page 6: ...on 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 FCC ICES IEC specification 4 General Specification No Item Specification Result Remark 1 Receiving System ATSC NTSC M 64 256 QAM 2 Available Channel 1 VHF 02 1...

Page 7: ...80I 3 720 480 31 500 60 000 27 027 SDTV 480P 4 720 480 31 470 59 940 27 000 SDTV 480P 5 1280 720 45 000 60 000 74 250 HDTV 720P 6 1280 720 44 960 59 940 74 176 HDTV 720P 7 1920 1080 33 750 60 000 74 250 HDTV 1080I 8 1920 1080 33 720 59 940 74 176 HDTV 1080I 9 1920 1080 67 500 60 000 148 500 HDTV 1080P 10 1920 1080 67 432 59 940 148 352 HDTV 1080P 11 1920 1080 27 000 24 000 74 250 HDTV 1080P 12 192...

Page 8: ...8 5 WUXGA Reduced Blanking FHD only DTV 1 640 480 31 46 59 94 25 125 SDTV 480P 2 640 480 31 5 60 00 25 125 SDTV 480P 3 720 480 15 73 59 94 13 500 SDTV 480I Spec out but display 4 720 480 15 75 60 00 13 514 SDTV 480I Spec out but display 5 720 480 31 47 59 94 27 00 SDTV 480P 6 720 480 31 5 60 27 027 SDTV 480P 7 1280 720 44 96 59 94 74 176 HDTV 720P 8 1280 720 45 60 00 74 25 HDTV 720P 9 1920 1080 33...

Page 9: ...s hatch pattern 09ch there can some afterimage in the black level area 3 Adjustment items 3 1 Main PCBA Adjustments 1 ADC adjustment OTP Component 2 EDID downloads for HDMI 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting In Stop 5 GND and HI POT test 3 3 Appendix 1 Tool option menu USB Download ...

Page 10: ... Jack 3 Play Test F9 button and confirm OK Message 4 remove LAN CABLE Step 1 Step 3 Check OK Signal 4 4 EDID Download 4 4 1 Overview It is a VESA regulation A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input It is a realization of Plug and Play 4 4 2 Equipment Since embedded EDID data is used EDID download JIG HDMI cable and D sub cable...

Page 11: ...ed Only for training and service purposes 2 HDMI2 6D 86 4 4 3 3 HD DTS 2D 8bit xvYCC off 32LH570B UC 1 HDMI1 6D 8D 2 HDMI2 6D 7D 4 4 3 4 FHD PCM 2D 8bit xvYCC off 43 49 55LH5700 UD 1 HDMI1 E5 CC 2 HDMI2 E5 BC 4 4 3 5 FHD AC3 2D 8bit xvYCC off 43 49 55LH5700 UD 1 HDMI1 E5 5A ...

Page 12: ...fore White balance adjustment Keep power on status don t power off 5 1 1 2 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 Analyzer CA 210 probe should be within 10cm and perpendicular of the module surface 80 100 3 Aging time After Aging Start Keep the Power...

Page 13: ... as end command wb 00 ff and Adj offset if need 5 1 5 2 Manual adjustment 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10cm of the surface 3 Press ADJ key EZ adjust using adj R C à 9 White Balance then press the cursor to the right KEY When KEY is pressed 206 Gray internal pattern will be displayed 4 Adjust Cool m...

Page 14: ... 279 284 294 303 321 343 4 10 19 277 280 292 299 319 339 5 20 35 275 277 290 296 317 336 6 36 49 274 274 289 293 316 333 7 50 79 273 272 288 291 315 331 8 80 119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329 3 O S Module AUO INX Sharp CSOT BOE cool med warm x y x y x y spec 271 270 286 289 313 329 target 278 280 293 299 320 339 5 2 Option selection per country 5 2 1 Overview 1 Tool op...

Page 15: ...ne wave signal 100 Modulation 2 CVBS Component 1KHz sine wave signal 0 4Vrms 6 2 Specification No Item Min Typ Max Unit Remark 1 Audio practical max Output L R Distor tion 10 max Output 4 5 6 0 5 0 6 32 6 0 6 93 W Vrms 1 Measurement condition EQ AVL Clear Voice Off 2 Speaker 6Ω Impedance 3 49 43LH57 2 2 7 4 03 3 0 4 24 3 6 4 64 W Vrms 1 Measurement condition EQ AVL Clear Voice Off 2 Speaker 6Ω Imp...

Page 16: ...h in the number Each model has their number 10 Optional adjustments 10 1 Manual White balance Adjustment 10 1 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 Analyzer CA 210 probe should be within 10cm and perpendicular of the module surface 80 100 3 Aging ...

Page 17: ...MP Digital Demod IF Sub Micom R5F100GEAFB IR KEY IR KEY I2C HDMI MUX LVDS USB SPDIF OUT ETHERNET USB1 OCP 1 5A HDMI1 ARC REAR OPTIC LAN 51P DDR3 1866 2Gb x16 X_TAL 24MHz WIFI SUB ASSY USB_WIFI Tuner DDR3 1866 2Gb x16 HDMI2 SIDE CVBS YPbPr AV COMP REAR EEPROM 256Kb eMMC 5 0 4GB I2S I2C I2C I2C Analog Demod HD Model 30P RS 232 RS 232 RS 232 US Only ...

Page 18: ...acteristics 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 Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 200 800 540 521 500 530 820 400 120 LV1 570 901 700 A10 Set S...

Page 19: ...3 AB19 TS1_D 4 W19 TS1_D 5 AB21 TS1_D 6 AA19 TS1_D 7 AA20 TS1_CLK Y20 TS1_VLD Y21 TS1_SYNC Y19 TS0_D 0 AF20 TS0_D 1 AC21 TS0_D 2 AE21 TS0_D 3 AF21 TS0_D 4 AC19 TS0_D 5 AD20 TS0_D 6 AE20 TS0_D 7 AE19 TS0_CLK AD19 TS0_VLD AE22 TS0_SYNC AD21 TS2_SYNC AB22 TS2_CLK AC22 TS2_VLD AC23 TS2_D 0 AB23 NC_1 AC3 NC_2 AB2 NC_3 AB3 NC_4 AA1 NC_5 AC2 NC_6 AC4 VIFP AF4 VIFM AE4 SIFP AF5 SIFM AE5 IFAGC AD4 TGPIO0 A...

Page 20: ... C313 0 1uF 16V BIT6 COMP2_Y AV_CVBS_IN R356 100 D0 _HDMI1 10uF 10V C312 C365 0 1uF 16V 1 10V_VDDC TU_CVBS BIT4 COMP2_Pr C372 22pF OPT DDC_SDA_3 10uF 10V C328 R308 33 HP_DET MODEL_OPT_12 R357 100 D0 _HDMI2 C303 2 2uF C353 0 1uF 16V C336 0 047uF CK _HDMI2 MODEL_OPT_13 C373 22pF OPT BIT1 COMP2_L_IN C363 0 1uF 16V C344 0 1uF 16V CK _HDMI1 R358 100 D1 _HDMI2 COMP2_R_IN C345 1000pF OPT TP313 D1 _HDMI3 ...

Page 21: ...LK A15 B MCLKZ B14 B CSB0 D9 B DQ 0 F19 B DQ 1 D15 B DQ 2 E18 B DQ 3 E16 B DQ 4 E19 B DQ 5 F16 B DQ 6 D18 B DQ 7 E15 B DQM 0 E17 B DQS 0 F18 B DQSB 0 F17 B DQ 8 B16 B DQ 9 A18 B DQ 10 B15 B DQ 11 A19 B DQ 12 C16 B DQ 13 B19 B DQ 14 C15 B DQ 15 B18 B DQM 1 D19 B DQS 1 C17 B DQSB 1 B17 A RCS RA14 ARBA0 C536 0 1uF C511 0 1uF C540 0 1uF ARBA2 H5TQ4G63CFR TEC IC501 DDR_HYNIX_4Gb A0 N3 A1 P7 A2 P3 A3 N2...

Page 22: ...T C617 4700pF 50V C614 1000pF 50V R619 51K C616 10uF 25V C619 47uF 25V L602 33uH C612 1uF 25V C601 0 1uF 50V OPT R628 1K C604 0 1uF 16V OPT C602 4 7uF 50V L601 15uH C611 1uF 16V IC601 MP3378E 3 ISET 2 OSC 4 ADIM 1 GND1 6 LED3 5 LED4 7 LED2 8 LED1 9 OVP 10 NC_1 11 NC_2 12 FB 13 EN2 14 VCC2 15 VIN2 16 SW 17 GND2_1 18 GND2_2 19 AGND 20 BST 21 SYNC 22 ISENSE 23 GATE 24 VIN1 25 VCC1 26 COMP 27 EN1 28 P...

Page 23: ...K 1 16W 1 C2338 50V 2700pF 19V VID C2327 10uF 10V POWER_ON OFF2_1 R2332 100K C2333 10uF 25V C2373 10uF 10V L2311 UBW2012 121F JP402 JP BLOCK DC_JACK 19V GND C2305 10uF 25V 3 3V_NORMAL IC2302 BD9A300MUV EAN62870501 1 PVIN_1 3 PGND_1 7 ITH 9 SS 10 SW_1 11 SW_2 12 SW_3 13 BOOT 14 PGD 15 EN 16 AVIN 5 AGND 8 MODE 6 FB 4 PGND_2 2 PVIN_2 17 EP FIN Q2302 SSM3J332R Toshiba_1st S G D R2342 820K C2310 10uF 1...

Page 24: ...C_FET_TOSHIBA_1st S G D WOL_WAKE_UP_SOC HDMI_CEC POWER_ON OFF2_1 PANEL_CTL C3005 2 2uF 10V R3003 2 7K SOC_RESET MICOM_RESET R3029 33 R3005 1K R3006 100 TP3003 MODEL1_OPT_3 R3017 0 MODEL1_OPT_2 R3015 27K C3001 0 47uF 3 3V_SB Q3001 NPN_NXP_2nd E B C R3014 270K OPT POWER_ON OFF1 R3011 4 7M OPT R3018 10K PWM1 WOL ETH_POWER_ON LED_R R3019 2 7K MODE_SELECT POWER_DET RETENTION_DISABLE KEY1 AMP_MUTE INV_C...

Page 25: ...1K AR3208 100 1 16W R3215 3 3K DDC_SCL_3 VA3207 AMOTECH_2nd DDC_SCL_3 R3212 4 7K HDMI_INT_EDID Q3202 MMBT3904 NXP HPD_TR_NXP E B C R3204 1K R3203 4 7K HDMI_INT_EDID R3201 100K R3202 33 OPT Q3200 MMBT3904 NXP HPD_TR_NXP E B C R3216 1 8K R3217 3 3K VA3201 AMOTECH_2nd 5V_DET_HDMI_1 R3200 1K AR3207 4 7K AR3231 4 7K JK3202 YKF45 7058V EAG59023302 14 ARC 13 CE_REMOTE 5 D1_GND 20 SHIELD 12 CK 11 CK_GND 2...

Page 26: ...0V HP_OUT P3401 12525HS 04A 1 2T OPT 1 2 3 4 JK3400 JST1223 001 SPDIF SOLTEAM_2nd 1 GND 2 VCC 3 VINPUT 4 FIX_POLE JK3401 PPJ245 31 5A GN YL O SPRING 6A GN YL E LUG 4A GN YL CONTACT 5B BL O SPRING 7C RD1 E LUG S 5C RD1 O SPRING 4C RD1 CONTACT 5D WH O SPRING 4E RD2 CONTACT 5E RD2 O SPRING 6E RD2 E LUG VA3400 5 6V HP_OUT_VARISTOR_INNOCHIPS_1st VA3409 5 6V VA3408 5 6V VA3400 1 HP_OUT_VARISTOR_AMOTECH_...

Page 27: ...016 14K 1 16W 1 R4002 3 3K C4005 0 1uF 16V C4007 10uF 10V P4001 SMAW200 H14S5K 14 9 4 13 8 3 12 7 2 11 6 1 10 5 15 LED_R D4001 RCLAMP0502BA OPT C4001 0 1uF 16V R4013 100 R4009 10K R4011 1 8K WIFI_DM C4006 0 1uF OPT C4010 100pF 50V R4010 10K 5 WIFI_DP C4004 5pF 50V OPT 3 4V_ST WOL WIFI_POWER_ON IR GND KEY2 3 4V_ST KEY1 C4002 1000pF 50V OPT 3 4V_WIFI R4004 100 C4013 10uF 10V IR C4008 5pF 50V OPT C40...

Page 28: ... D4302 RCLAMP0502BA OPT USB_DM1 USB_DP1 5V_USB_1 C4305 10uF 10V C4303 10uF 10V C4309 10uF 10V C4307 10uF 10V 5V_USB_1 R4304 10K OPT 5V_NORMAL R4308 10K 1 USB_OCD1 3 3V_NORMAL C4310 0 1uF 16V USB_CTL1 R4306 4 7K JK5001 US 04A VSD 1 2 3 4 5 JP4301 JP BLOCK USB VBUS DM DP GND ZD4301 5V NXP_1st ZD4301 1 5V KEC_2nd IC4301 TJ2242GSF6 3 EN 2 GND 4 FLAG 1 IN 6 OUT 5 ILIMIT USB REAR MAX 1 5A 10K 2 63V 4 7K...

Page 29: ...1uF 50V JK5000 RJ45VT 01SN002 UDE_1st 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 D5000 5 5V LAN_ESD EPHY_RDN EPHY_RDP EPHY_TDN EPHY_TDP D5003 5 5V LAN_ESD R5001 0 R5002 0 LANJACK GND LANJACK GND L5001 BLM15PX121SN1 L5002 BLM15PX121SN1 JK5000 1 26TM9G 30100 02HF Freeport_2nd 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 JK5000 2 B50 512 10 F4 03A A013 B52 HONGLIN_3rd 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 Ethernet Blo...

Page 30: ..._SCL1 R5606 3 3 1 10W R5613 4 7K AUD_LRCK R5611 4 7K C5618 0 47uF 50V IC5600 NTP7515 NTP7515 3 NC_2 2 VDD_PLL 4 GND 1 NC_1 6 DVDD 5 NC_3 7 SDATA 8 WCK 9 NC_4 10 SDA 11 SCL 12 FAULT 13 MONITOR_0 14 MONITOR_1 15 MONITOR_2 16 BST2B 17 PGND2B 18 OUT2B 19 PVDD2B 20 PVDD2A 21 OUT2A 22 PGND2A 23 BST2A 24 VDR2 25 AGND 26 NC_5 27 VDR1 28 BST1B 29 PGND1B 30 OUT1B 31 PVDD1B 32 PVDD1A 33 OUT1A 34 PGND1A 35 BS...

Page 31: ...06 1 10K TU_N D_1 2V D_Demod_Core 0 1uF C6700 F_NIM MCP C6708 0 01uF 50V F_NIM MCP R6705 4 7K F_NIM MCP C6705 1uF 10V F_NIM MCP R6700 10K F_NIM MCP R6706 5 1K F_NIM MCP C6709 10uF 10V F_NIM MCP 5V_NORMAL 3 4V_ST C6511 10pF OPT C6510 10pF OPT R6503 1 0 IF_NON_FILTER R6502 1 0 IF_NON_FILTER FE_DEMOD1_TS_DATA_TU 4 FE_DEMOD1_TS_DATA 6 AR6500 0 1 16W TS_AR_0ohm AR6502 1 47 TS_AR_47ohm AR6501 1 47 TS_AR...

Page 32: ... SCL_RF 2 SDA_RF 3 B1 3 3V_RF 4 CVBS 5 IF_AGC 6 SIF 7 IF N 8 IF P 9 GND 10 RESET_DEMOD 11 B2 3 3V_DEMOD 12 NC 13 B3 1 2V_DEMOD 14 ERROR 15 MCLK 16 SYNC 17 VALID 18 D0 19 D1 20 D2 21 D3 22 D4 23 D5 24 D6 25 D7 26 SHIELD FE_DEMOD1_TS_ERROR_TU FE_DEMOD1_TS_DATA_TU 1 TU_RESET1_TU IF_N_TU TDJS G301D TU6700 TU_AJ JA 6 SIF 7 IF N 8 IF P 9 SHIELD 1 SCL_RF 2 SDA_RF 3 B1 3 3V_RF 4 CVBS 5 IF_AGC FE_DEMOD1_TS...

Page 33: ...SCHEMETIC L16_SS 2015 08 15 073 HD_LVDS I2C_SDA1 AR7201 0 VCOM I2C_SCL1 R8118 2 2K AGP R8119 1 8K AGP R8120 3 3K OPT AGP 3 3V_NORMAL P7201 10031HR 30 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 TXA2N TXA0P TXA3P TXA1N TXA3N TXA0N TXACLKN TXA1P TXACLKP TXA2P PANEL_VCC R8121 3 3K OPT R8118 1 0 NON_AGP LVDS 30Pin LVDS Connector Copyright 2016 LG Electronics Inc...

Page 34: ...L14 NC_78 M1 NC_79 M2 NC_80 M3 NC_81 M7 NC_82 M8 NC_83 M9 NC_84 M10 NC_85 M11 NC_86 M12 NC_87 M13 NC_88 M14 NC_89 N1 NC_90 N3 NC_91 N6 NC_92 N7 NC_93 N8 NC_94 N9 NC_95 N10 NC_96 N11 NC_97 N12 NC_98 N13 NC_99 N14 NC_100 P1 NC_101 P2 NC_102 P8 NC_103 P9 NC_104 P11 NC_105 P12 NC_106 P13 NC_107 P14 EMMC_RST DAT7 AR8100 0 1 16W C8102 0 1uF 16V R8106 0 C8107 10pF 50V OPT C8103 2 2uF 10V LH60 C8104 2 2uF...

Page 35: ...S232C C11202 0 1uF RS232C 3 4V_ST VA11200 ADUC 20S 02 010L 20V OPT C11201 0 1uF RS232C RIN1 VA11201 20V ADUC 20S 02 010L OPT SOC_TX SOC_RX IC11200 MAX3232CDR EAN41348201 RS232C 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 C11203 0 1uF RS232C JP11204 JP11203 JP11201 JP11202 AR11201 100 RS 232C Control INTERFACE 16Y_M2 2015 09 02 112 RS23...

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