LG 49UH750 Series Service Manual Download Page 126

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Checking order when there is no audio

1.Check the contact condition of or 13V connector of Main Board

2. Measure the 13V input voltage supplied from Power Board

(If there is no input voltage, remove and check the connector)

3.Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the

GND and output terminal, the speaker is normal.

Standard Repair Process Detail Technical Manual

Voltage and speaker checking method
when there is no audio

C. Audio error_No audio/Normal video

A21

Established

date

Revised

date

Error

symptom

Content

A21

①

②

③

SPK_R-

SPK_R+

SPK_L-

SPK_L+

②

ⓒ

Only for training and service purposes

LGE Internal Use Only

Summary of Contents for 49UH750 Series

Page 1: ...P NO MFL69502014 1604 REV01 CHASSIS UD63P MODEL 49UH750 49UH750 ZA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL Internal Use Only ...

Page 2: ...served Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 11 BLOCK DIAGRAM 21 EXPLODED VIEW 31 DISASSEMBLY 32 SCHEMATIC CIRCUIT DIAGRAM APPENDIX TROUBLE SHOOTING GUIDE 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: ...ctrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing 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 e...

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: ...Latvia Estonia Lithuania Poland Portugal Romania Albania Bosnia Slovakia Belarus DTV MPEG2 4 DVB T2 11 countries UK Ireland Sweden Denmark Finland Norway Ukraine Kazakhstan Russia Italy Croatia Serbia DTV MPEG2 4 DVB C 37 countries Germany Netherland Switzerland Hungary Austria Slovenia Bulgaria France Spain Italy Belgium Russia Luxemburg Greece Czech Cro atia Turkey Morocco Ireland Latvia Estonia...

Page 7: ...eterodyne Digital COFDM QAM DVB T Guard Interval Bitrate_Mbit s 1 4 1 8 1 16 1 32 Modulation Code Rate QPSK 1 2 2 3 3 4 5 6 7 8 16 QAM 1 2 2 3 3 4 5 6 7 8 64 QAM 1 2 2 3 3 4 5 6 7 8 DVB T2 Guard Interval Bitrate_Mbit s 1 4 1 8 1 16 1 32 1 128 19 128 19 256 Modulation Code Rate QPSK 1 2 2 5 2 3 3 4 5 6 16 QAM 1 2 2 5 2 3 3 4 5 6 64 QAM 1 2 2 5 2 3 3 4 5 6 256 QAM 1 2 2 5 2 3 3 4 5 6 DVB C Symbolrat...

Page 8: ...80i 3 720 576 15 62 50 13 5 SDTV 576i 4 720 480 31 47 59 94 27 0 SDTV 480p 5 720 480 31 50 60 27 027 SDTV 480p 6 720 576 31 25 50 27 0 SDTV 576p 7 1280 720 44 96 59 94 74 175 HDTV 720p 8 1280 720 45 00 60 00 74 250 HDTV 720p 9 1280 720 37 50 50 00 74 250 HDTV 720p 10 1920 1080 28 12 50 74 250 HDTV 1080i 11 1920 1080 33 72 59 94 74 175 HDTV 1080i 12 1920 1080 33 75 60 00 74 250 HDTV 1080i 13 1920 1...

Page 9: ...36 HDTV 1080P 17 1920 1080 33 71 29 97 79 12 HDTV 1080P 18 1920 1080 33 75 30 00 79 20 HDTV 1080P 19 1920 1080 56 25 50 00 148 50 HDTV 1080P 20 1920 1080 67 43 59 94 148 35 HDTV 1080P 21 1920 1080 67 50 60 00 148 50 HDTV 1080P 22 3840 2160 53 95 23 98 297 00 UDTV 2160P UHD only 23 3840 2160 54 00 24 00 297 00 UDTV 2160P UHD only 24 3840 2160 56 25 25 00 297 00 UDTV 2160P UHD only 25 3840 2160 61 4...

Page 10: ... 60 01 85 00 VESA WXGA 8 1280 1024 63 98 60 02 109 00 VESA SXGA FHD UHD only 9 1920 1080 67 50 60 00 158 40 WUXGA CEA 861D FHD UHD only 10 3840 2160 54 00 24 00 297 00 UDTV 2160P UHD only 11 3840 2160 56 25 25 00 297 00 UDTV 2160P UHD only 12 3840 2160 67 50 30 00 297 00 UDTV 2160P UHD only 13 4096 2160 53 95 23 97 296 703 UDTV 2160P UHD only 14 4096 2160 54 00 24 00 297 00 UDTV 2160P UHD only 5 2...

Page 11: ...stance of above 15 C for 2 hours In case of keeping module is in the circumstance of below 20 C it should be placed in the circumstance of above 15 C for 3 hours Caution When still image is displayed for a period of 20 minutes or longer Especially where W B scale is strong Digital pattern 13ch and or Cross hatch pattern 09ch there can some afterimage in the black level area 3 Automatic Adjustment ...

Page 12: ...always There is impossible to download by bar code scan so It need Manual download 1 Press the Instart key of Adjustment remote control 2 Go to the menu 7 Model Number D L like below photo 3 Input the Factory model name ex 65UG870V ZA or Serial number like photo 4 Check the model name Instart menu Factory name displayed ex 65UG870V ZA 5 Check the Diagnostics DTV country only Buyer model displayed ...

Page 13: ...1 01 01 01 10 01 1A 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58 40 8A 00 40 84 63 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 88 3C 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 9F 0 1 2 3 4 5 6 7 8 9 A B C D E F ...

Page 14: ...0 84 63 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 88 3C 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 9F 0 1 2 3 4 5 6 7 8 9 A B C D E F 80 02 03 3C F1 54 5D 10 1F 04 13 05 14 03 02 12 20 90 21 22 15 01 5E 5F 62 63 64 29 3D 06 C0 15 07 50 A0 09 57 07 6E 03 0C 00 20 00 B8 3C 20 00 80 01 02 B0 03 04 E5 0E 60 61 ...

Page 15: ...0 00 9E 66 21 50 B0 51 D0 00 1B 30 40 70 36 00 40 84 63 00 00 1E 00 00 00 E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 72 0 1 2 3 4 5 6 7 8 9 A B C D E F 80 02 03 48 F1 58 61 60 10 1F 04 13 05 14 03 02 12 90 20 21 22 15 01 5D 5E 5F 65 66 62 63 64 26 15 07 A0 50 09 57 07 6E 03 0C 00 30 00 B8 3C 20 00 80 01 B0 02 03 04 67 D8 5D C4 01 78 80 03 E3 ...

Page 16: ...A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58 40 8A 00 40 84 63 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 88 3C 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 9F 0 1 2 3 4 5 6 7 8 9 A B C D E F 80 02 03 36 F1 54 5D 10 1F 04 13 05 14 03 02 12...

Page 17: ... CH 14 2 Adjustment Computer During auto adj RS 232C protocol is needed 3 Adjustment Remote control 4 Video Signal Generator MSPG 925F 720p 216 Gray Model 204 Pattern 49 Only when internal pattern is not available Color Analyzer Matrix should be calibrated using CS 100 4 2 3 Equipment connection MAP 4 2 4 Adj Command Protocol Command Format LEN Number of Data Byte to be sent CMD Command VAL FOS Da...

Page 18: ...attern Adjustment 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 PDP Color Analyzer CA 100 CA 100 CA210 probe should be firmly attached to the Module LCD Color Analyzer CA 210 probe should be within 10cm and perpendicular of the module surface 80 100 3 Aging time Afte...

Page 19: ...ect Country Group Menu 2 Depending on destination select Country Group Code or Country Group then on the lower Country option select US CA MX Selection is done using or KEY 4 6 HDMI ARC Function Inspection 1 Test equipment Optic Receiver Speaker MSHG 600 SW 1220 HDMI Cable for 1 4 version 2 Test method 1 Insert the HDMI Cable to the HDMI ARC port from the master equipment HDMI2 2 Check the sound f...

Page 20: ...her USB data is automatically detecting Download Version High Power only mode Set is automatically Download 3 Show the message Copying files from memory 4 Updating is starting 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...

Page 31: ... Many electrical 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 Shock Fire or other Hazards Do not modify the original design without permission of manufacturer...

Page 32: ... 32 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes DISASSEMBLY 3 1 3 3 3 2 2 Unlock 3 Screw 4ea to separate 2 stand 2ea from 1 Set ...

Page 33: ...nly Copyright LG Electronics Inc All rights reserved Only for training and service purposes 5 4 5 5 5 5 5 5 5 5 5 5 5 5 6 Unlock 5 13ea 6 1ea Screw to separate 4 Back cover using screw driver 7 7 7 Elimination of 7 Tape 3ea ...

Page 34: ...nics Inc All rights reserved Only for training and service purposes 10 8 8 11 9 8 8 8 8 8 8 8 Unlock 8 9ea 9 1ea Screw to separate from 10 Power PCB and 11 Main PCB 12 13 12 12 13 12 Unlock 12 Screw 4ea and separate the 13 Supporter stand guide 2ea ...

Page 35: ...nc All rights reserved Only for training and service purposes 15 14 14 14 Keep pulling top partof the Middle Bottom bracket push the bottom partLeft Right latch ᐓ a 16 16 Unlock 14 Screw 3ea to separate 15 Bottom Bracket Assy Separate the 16 Speaker 2ea ...

Page 36: ...l rights reserved Only for training and service purposes 18 17 17 17 17 Unlock 17 4ea Screw to separate from 18 Front Deco Assy 21 19 20 19 20 19 20 19 20 Unlock 19 Screw 4ea to separate 20 Vesa Bracket 4ea using driver And Elimination of 21 Insulation sheet ...

Page 37: ...se Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes 22 23 Unlock 22 Screw 1ea 23 24 24 24 24 25 26 Separate to 24 Hook 4ea 25 Indicator and 26 Wi Fi PCB from 23 Bottom Bracket ...

Page 38: ...K TU_NON_JP_1 2K R199 2 1 2K TU_NON_JP_1 2K VX1_MSE VX1_MSE IC101 LGE1312 M16 EAN63846302 XIN B23 XOUT A24 PORES_N AH18 BOOT_MODE_0 AA8 BOOT_MODE_1 AB8 PLLSET0 AD7 PLLSET1 AC7 OPM0 AE6 OPM1 AE7 L_VSOUT_LD AC3 DIM0_SCLK AC6 DIM1_SCLK AD6 DIM1_MOSI AC5 DIM0_MOSI AD5 SPI_CS0 AJ22 SPI_SCLK0 AH22 SPI_DO0 AJ23 SPI_DI0 AK23 SPI_CS1 AH24 SPI_SCLK1 AK24 SPI_DO1 AH23 SPI_DI1 AJ24 EXT_INTR0 AB7 EXT_INTR1 AC8...

Page 39: ...A 4 FE_DEMOD2_TS_DATA 1 FE_DEMOD2_TS_DATA 7 FE_DEMOD2_TS_DATA 6 R206 27K 3 3V_NORMAL FE_DEMOD2_TS_DATA FE_DEMOD2_TS_VAL FE_DEMOD2_TS_SYNC FE_DEMOD2_TS_CLK FE_DEMOD2_TS_ERROR IC101 LGE1312 M16 EAN63846302 TP_DVB_CLK AC27 TP_DVB_SOP AD27 TP_DVB_VAL AC29 TP_DVB_ERR AC28 TP_DVB_DATA7 AF29 TP_DVB_DATA6 AF28 TP_DVB_DATA5 AG29 TP_DVB_DATA4 AG28 TP_DVB_DATA3 AE28 TP_DVB_DATA2 AE27 TP_DVB_DATA1 AD29 TP_DVB...

Page 40: ...DC_SDA_1 C330 0 047uF R350 5 1K COMP2_Pr_IN_SOC IF_N I2S_AMP L305 120 ohm C337 1uF 10V COMP2_Y_IN_SOC C333 2 2uF10V HDMI_HPD_2 EPHY_RXD0 SMARTCARD_CLK C325 22pF OPT CK _HDMI3 C324 22pF OPT C323 33pF OPT R333 100 AUD_LRCH_TW C345 33pF OPT FLASH_WP_F16 R302 10K R305 10K OPT R304 10K OPT MNT_V_OUT_SOC IC101 LGE1312 M16 CVBS_IN1 AM29 CVBS_IN2 AL29 CVBS_IN3 AL30 CVBS_VCM AM30 BUF_OUT AM31 SC1_SID AN29 ...

Page 41: ... K9 CS L2 ODT K1 RAS J3 CAS K3 WE L3 RESET T2 DQSL F3 DQSL G3 DQSU C7 DQSU B7 DML E7 DMU D3 DQL0 E3 DQL1 F7 DQL2 F2 DQL3 F8 DQL4 H3 DQL5 H8 DQL6 G2 DQL7 H7 DQU0 D7 DQU1 C3 DQU2 C8 DQU3 C2 DQU4 A7 DQU5 A2 DQU6 B8 DQU7 A3 VREFCA M8 VREFDQ H1 ZQ L8 VDD_1 B2 VDD_2 D9 VDD_3 G7 VDD_4 K2 VDD_5 K8 VDD_6 N1 VDD_7 N9 VDD_8 R1 VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 VDD...

Page 42: ...KE K9 CS L2 ODT K1 RAS J3 CAS K3 WE L3 RESET T2 DQSL F3 DQSL G3 DQSU C7 DQSU B7 DML E7 DMU D3 DQL0 E3 DQL1 F7 DQL2 F2 DQL3 F8 DQL4 H3 DQL5 H8 DQL6 G2 DQL7 H7 DQU0 D7 DQU1 C3 DQU2 C8 DQU3 C2 DQU4 A7 DQU5 A2 DQU6 B8 DQU7 A3 VREFCA M8 VREFDQ H1 ZQ L8 VDD_1 B2 VDD_2 D9 VDD_3 G7 VDD_4 K2 VDD_5 K8 VDD_6 N1 VDD_7 N9 VDD_8 R1 VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 V...

Page 43: ...R19 DVDD09_CPU_7 R20 DVDD09_CPU_8 R21 DVDD09_CPU_9 T18 DVDD09_CPU_10 T19 DVDD09_CPU_11 T20 DVDD09_CPU_12 T21 DVDD09_CPUPLL L17 DVDD09_DDRPLL L11 DVDD09_XTAL L18 DVDD09_DDR_1 N12 DVDD09_DDR_2 N13 DVDD09_DDR_3 P13 DVDD09_DDR_4 R13 AVDD09_AFE3CH AC20 AVDD09_APLL AC22 AVDD09_DMD AC21 AVDD09_LLPLL AC19 SP_VQPS H23 IC101 LGE1312 M16 GND_1 B3 GND_2 B22 GND_3 B24 GND_4 C2 GND_5 C22 GND_6 C23 GND_7 C24 GND...

Page 44: ... 4 CI_DATA 0 7 PCM_INPACK R709 33 CI 5V_CI_ON CI_ADDR 9 R712 10K EB_BE_N0 C706 0 1uF 16V CI CI_ADDR 11 TPI_DATA 5 CI_TS_DATA 7 TPO_VAL PCM_CE2 R703 10K CI EB_WE_N PCM_IRQA R705 100 CI PCM_CE1 AR711 33 CI TPI_DATA 6 CI_ADDR 2 AR704 100 CI EB_ADDR 7 CI_ADDR 8 CI_IN_TS_DATA 0 7 C701 0 1uF 16V CI CI_ADDR 4 CI_TS_DATA 5 CI_TS_DATA 1 EB_ADDR 12 CI_TS_DATA 4 CAM_WAIT_N 5V_CI_ON PCM_RESET R706 10K CI 5V_C...

Page 45: ...R 7 CI_TS_DATA 7 CI_ADDR 9 CI_ADDR 3 CI_TS_DATA 2 CI_TS_DATA 0 CI_IN_TS_VAL CI_TS_VAL CI_TS_DATA 4 PCM_WE CI_TS_DATA 3 CI_ADDR 0 CI_ADDR 4 CI_ADDR 14 PCM_INPACK CI_TS_SYNC CI_CD1_JACK CI_ADDR 1 PCM_IOWR PCM_INPACK_JACK CI_TS_CLK PCM_IRQA_JACK CI_ADDR 13 CI_ADDR 6 5V_CI_ON 5V_CI_ON JK800 10125901 015LF CI_SLOT_FCI EAG63217207 G1 G2 57 21 52 16 10 47 41 5 36 59 23 45 54 18 49 43 13 7 38 2 25 56 20 5...

Page 46: ...IM 3 3V_NORMAL INV_CTL L1000 UBW2012 121F L1002 UBW2012 121F L1001 UBW2012 121F P1000 SMAW200 H12S5K BK LTR PWR_WAFER_12P 9 4 8 3 12 7 2 11 6 1 10 5 13 3 5V_ST L DIM0_MOSI R1003 100 MODE_SELECT_NON R1001 1K MODE_SELECT_NON 13V C1000 0 1uF 25V P1002 SMAW200 H18S5 PWR_WAFER_18P 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 15 10 5 19 R1006 100 EPI or OS_MODULE PWM_DIM2 C1004 4 7uF 50V R1000 10K C1002 0 1uF 5...

Page 47: ...L C1104 10pF 50V OPT 13V C1102 0 01uF 50V C1106 0 1uF 25V L1100 UBW2012 121F C1103 0 1uF 16V OPT L1101 UBW2012 121F C1105 10uF 25V C1100 10uF 25V C1101 0 1uF 25V PANEL_VCC R1101 10 1 10W 1 R1103 10K R1100 1K IC1100 NIS5132MN2 FN 7 EAN64130001 3 ENABLE FAULT 2 DV DT 4 ILIMIT 1 GND 5 NC 6 SOURCE_1 7 SOURCE_2 8 SOURCE_3 9 SOURCE_4 10 SOURCE_5 11 EP C1107 10uF 25V C1108 10uF 25V 13V I LIM 7A PANEL_POW...

Page 48: ...CHEMETIC 15 06 13 Power det R1300 14K 1 PD_ 12V POWER_DET_1 IC1300 BD48K28G EAN62945801 1 GND 2 VOUT 3 VDD 3 5V_ST C1301 0 1uF 16V R1305 10K OPT POWER_DET R1302 0 OPT 13V 3 5V_ST R1304 100K R1301 5 1K 1 PD_ 12V R1303 0 5 PD_ 3 5V C1300 0 1uF 16V R1300 1 11K 1 PD_ 18V R1301 1 2 7K 1 PD_ 18V ST_3 5V 3 5V 24V 3 48V Power_DET not to RESET at 8kV ESD 12V 3 58V 20V 3 51V Copyright ⓒ 2016 LG Electronics ...

Page 49: ...6 02 C1405 10uF 10V R1403 1 2K 1 C1403 0 1uF 16V OPT 3 3V_NORMAL C1401 0 1uF 50V R1405 2 7K 1 IC1400 BD86106EFJ 3 AGND 2 VIN 4 FB 1 PGND 5 COMP 6 EN 7 SW_1 8 SW_2 9 EP R1402 10K POWER_ON OFF1 C1402 1500pF 50V R1404 7 5K 1 13V C1407 10uF 10V C1400 10uF 25V L1400 BLM18PG121SN1D C1404 10uF 10V C1406 10uF 10V L1401 2 2uH PS064T 2R2MS R1401 10K ZD1400 5V R2 Vout 0 8 1 R1 R2 3 3V_NORMAL R1 6A Copyright ...

Page 50: ...VIN_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 C1506 10uF 10V POWER_ON OFF2_4 R1501 8 2K 1 R1502 330K OPT C1508 10uF 10V R1500 10K R1504 18K 1 16W 1 C1509 10uF 10V R1503 16K 1 16W 1 L1501 2 2uH VLS5045EXT 2R2N 1 5V_DDR C1502 0 1uF 16V OPT C1501 0 1uF 16V C1504 0 01uF 50V C1507 10uF 10V 3 5V_ST C1500 10uF 10V ZD1500 2 5V...

Page 51: ...r 2015 06 03 16 M16 C1606 10uF 10V C1602 1500pF 50V R1601 10K C1600 10uF 25V 13V C1605 10uF 10V L1600 BLM18PG121SN1D 5V_NORMAL IC1600 BD86106EFJ 3 AGND 2 VIN 4 FB 1 PGND 5 COMP 6 EN 7 SW_1 8 SW_2 9 EP C1603 0 0068uF 50V POWER_ON OFF1 R1600 20K C1601 0 1uF 50V C1604 10uF 10V C1607 10uF 10V ZD1600 5V ESD_READY C1608 10uF 10V R1603 18K 1 R1602 3 3K 1 L1601 4 7uH 100 PAGE 16 R2 6A R1 Vout 0 8 1 R1 R2 ...

Page 52: ...015 06 03 17 M16 C1706 0 1uF 16V C1707 0 1uF 25V L1700 BLM18PG121SN1D C1702 10uF 10V C1708 10pF 50V OPT C1704 10uF 10V C1700 10uF 25V L1701 4 7uH VLS6045EXT 4R7M R1702 10K 1 16W 1 C1705 10uF 10V C1701 0 1uF 25V R1701 10K 13V C1703 10uF 10V 3 5V_ST R1703 33K 1 16W 1 IC1700 SN1501019 EAN63530002 3 VIN 2 SW 4 VFB 1 GND 6 VBST 5 EN R1704 2K 1 16W 1 100 PAGE 17 R1 Vout 0 765 1 R1 R2 3A R2 3 5V_ST Copyr...

Page 53: ...IC C1805 10uF 10V L1800 C1808 10uF 10V 1 8V_IO ZD1800 2 5V ESD_READY R1800 10K C1803 0 47uF 50V 13V C1802 0 1uF 50V L1801 2 2uH VLS5045EXT 2R2N C1809 33pF 50V OPT C1806 10uF 10V POWER_ON OFF1 C1807 10uF 10V C1801 10uF 25V C1804 0 1uF 16V OPT IC1800 RT7295CG6F 3 FB 2 GND 4 EN 1 BOOT 6 SW 5 VIN R1801 20K 1 16W 1 R1802 10K 1 16W 1 PAGE 18 1 8V_IO R2 R1 3 5A Vout 0 6 1 R1 R2 Copyright ⓒ 2016 LG Electr...

Page 54: ... 26 VREF 27 RA 28 EN 5 BST 8 SW_3 6 SW_1 4 NC 2 LP 29 EP GND ZD2000 2 5V ESD_READY R2007 0 L2001 C2008 470pF 50V OPT GSNS 3 3V_NORMAL L2000 1 0uH LPBN8050T 1R0N C2009 0 1uF 25V GSNS C2010 0 1uF 16V OPT POWER_ON OFF2_3 Q2001 T2N7002AK S G D 0 9V_CORE R2003 1K CORE_VID 1 3 3V_NORMAL C2004 10uF 10V C2002 10uF 10V 5V_NORMAL R2014 0 R2005 39K 1 16W 1 R2004 0 1 16W 5 R2017 10K R2016 10K R2011 430K 1 R20...

Page 55: ...1 R2106 0 ZD2100 2 5V ESD_READY IC2100 RT7295CG6F 3 FB 2 GND 4 EN 1 BOOT 6 SW 5 VIN C2104 10uF 10V C2100 10uF 25V 3 3V_NORMAL 0 9V_CPU Q2101 T2N7002AK S G D R2109 9 1K 1 R2111 18K 1 16W 1 R2108 180K 1 R2107 30K 1 R2103 120K 1 R2102 0 5 H CPU_VID0 0 9743V R1 Placed on SMD TOP H R1 9 1K R2 18K 120K V 0 9488V CPU_VID0 H CPU_VID1 L LV_CPU L 16 57 kohm 021 sht 0 9488V 3 5A R1 9 1K R2 18K V 0 9033V CPU_...

Page 56: ... THE SCHEMETIC M16_0 9V DDR C4TX 73 15 09 24 10uF C2201 10V 10uF C2200 10V IC2200 TJ2132GDP 3 IN 2 EN 4 BIAS 1 POK 5 SS 6 OUT 7 FB 8 GND 9 EP GND L2200 C2205 0 1uF 16V R2200 10K 5V_NORMAL POWER_ON OFF2_3 R2201 8 2K 1 C2202 0 01uF 50V 0 9V_DDR 1 8V_IO C2203 2700pF 50V ZD2200 2 5V ESD_READY C2204 10uF 10V R2202 5 1K 1 Vout 0 6 1 R2 R1 2A R2 0 9V DDR C4TX R1 21 022 sht Copyright ⓒ 2016 LG Electronics...

Page 57: ...1_OPT_1 F16_RESET_MICOM POWER_DET RL_ON EYE_SDA R3023 33 LED_R SOC_RX POWER_ON OFF2_3 3 5V_ST WOL ETH_POWER_ON AMP_MUTE R3011 100 R3020 10K 3 5V_ST R3019 33 SIDE_HP_MUTE R3018 4 7M OPT KEY2 MODE_SELECT PWM1 C3006 2 2uF 10V MODE_SELECT R3004 10K MODE_SELECT MODE_SELECT PWM1 MODE_SELECT 3 5V_ST T_CON_SYS_POWER_OFF POWER_DET_1 RETENTION_DISABLE TP3002 TP3001 BT_WAKEUP_ON OFF BT_WAKEUP_ON OFF BT_WAKEU...

Page 58: ...CK JK3100 DAADR019A EAG63530101 14 ARC 13 CE_REMOTE 5 D1_GND 20 BODY_SHIELD 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 5V_HDMI_1 HDMI_HPD_1_JACK D1 _HDMI2_JACK HDMI_HPD_2_JACK CK _HDMI3_JACK CK _HDMI1_JACK DDC_SDA_2_JACK D0 _HDMI1_JACK DDC_SDA_1_JACK DDC_SDA_3_JACK CEC_REMOTE DDC_SCL_1_JACK D2 _HDMI1_JACK DDC_SCL_2_JACK D2 _H...

Page 59: ... VA3207 ESD_HDMI CEC_REMOTE R3266 100K VA3210 ESD_HDMI 5V_NORMAL DDC_SCL_2 R3267 100K D1 _HDMI2_JACK R3250 33 HDMI_HPD_330HM D2 _HDMI3_JACK CK _HDMI1_JACK VA3209 ESD_HDMI D2 _HDMI3 R3258 33 HDMI_EXT_EDID DDC_SDA_1_JACK VA3211 ESD_HDMI DDC_SDA_2 DDC_SCL_3 CEC_REMOTE CEC_REMOTE AR3201 33 HDMI_DDC_33OHM D0 _HDMI2_JACK D2 _HDMI3_JACK D2 _HDMI1_JACK VA3212 ESD_HDMI 5V_HDMI_1 R3251 33 HDMI_INT_EDID_33OH...

Page 60: ... 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 L3401 BLM18PG121SN1D R3413 1K R3402 470K AV1_CVBS_DET C3407 10pF 50V OPT R3410 1K C3408 10pF 50V OPT C3402 10pF 50V OPT VA3403 5 6V C3409 10pF 50V OPT C3406 330pF 50V C3412 0 1uF 16V L3400 BLM18PG121SN1D R3404 75 R3403 75 C3400 330pF 50V OPT 3 3V_NORMAL...

Page 61: ...E CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 15 08 25 WAFER_IR KEY WIFI BT WIFI_DM_JACK WIFI_DP_JACK WOL WIFI_POWER_ON_JACK 3D_SYNC_RF_JACK BT_RESET_JACK EYE_SCL_JACK EYE_SDA_JACK LED_R_JACK IR KEY2_JACK KEY1_JACK 3 5V_WIFI 3 5V_ST P4000 12507WR H21L2B BK 1 2 3 4 5 6 7 8 12 13 14 15 16 17 18 19 20 21 22 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and servi...

Page 62: ...AMP0502BA OPT R4113 100 IR R4107 100 3 5V_WIFI C4108 0 1uF OPT 3 5V_WIFI R4109 1 8K LED_R C4106 1000pF 3 5V_ST IR KEY2_JACK C4104 10uF 10V 3 5V_ST R4104 2K OPT LED_R_JACK JP4100 JP BLOCK IR IR GND WOL WIFI_POWER_ON WOL WIFI_POWER_ON_JACK 3 5V_ST LED_R 3 5V_ST R4108 100 C4103 5pF OPT KEY1_JACK 3 5V_ST EYE_SDA R4105 0 R4106 0 R4118 0 WIFI_11N_ONLY WIFI_EN C4113 1uF 25V C4114 0 1uF 16V OPT IC4102 EAN...

Page 63: ...NUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 15 06 13 JACK_USB2_2 0 73 5V_USB_2 JK4400 3AU04S 305 ZC LG JACK_USB2 0_FREEPORT EAG62571101 1 2 3 4 5 USB3_DP1_JACK USB3_DM1_JACK JK4400 1 SPG15 UCS 0203 JACK_USB2 0_DEV EAG62571104 1 2 3 4 5 USB2 2 0 MAX 1 5A Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purpos...

Page 64: ...ORMAL 5V_USB_2 R4502 4 7K USB3_DM1 5V_USB_2 5V_USB_2 C4504 10uF 10V OPT C4502 1uF 25V R4501 10K USB_OCD2 C4500 10uF 10V R4508 2 2 USB_CTL2 3 3V_NORMAL USB3_DM1_JACK JP4504 JP BLOCK USB VBUS DM DP GND D4500 PJDLC05C 02TB EAH63274301 IC4501 BD2242G EAN62871401 3 EN 2 GND 4 OC 1 VIN 6 VOUT 5 ILIM R4503 14K 1 MAX 1 5A OCP USB2_2 0 Remove OPT Ce cap 22uF value change USB2 2 0 10K 2 63V 4 7K 2 97V 45 M1...

Page 65: ... IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 15 06 13 JACK_USB3_2 0 73 USB2_DM0_JACK USB2_DP0_JACK 5V_USB_3 JK4600 US 04A VSD EAG59068702 1 2 3 4 5 USB3 2 0 MAX 1 5A Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ... R4701 2 2 USB2_DP0 5V_USB_3 C4700 10uF 10V C4702 1uF 25V USB2_DP0_JACK USB_CTL3 R4702 10K R4703 4 7K USB2_DM0_JACK USB2_DM0 C4701 10uF 10V OPT USB_OCD3 3 3V_NORMAL JP4700 JP BLOCK USB VBUS DM DP GND D4700 PJDLC05C 02TB EAH63274301 IC4700 BD2242G EAN62871401 3 EN 2 GND 4 OC 1 VIN 6 VOUT 5 ILIM R4704 14K 1 USB3 2 0 OCP USB3_2 0 Remove OPT Ce cap 22uF MAX 1 5A 10K 2 63V 4 7K 2 97V value change 47 M1...

Page 67: ...G121SN1D D5003 5 5V EPHY_RDP C5000 0 1uF 16V D5001 5 5V EPHY_TDN R5000 0 D5002 5 5V EPHY_TDP C5001 0 01uF 50V L5000 BLM18PG121SN1D JK5000 RJ45VT 01SN002 JACK_LAN_UDE EAG35781010 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 R5001 0 D5000 5 5V EPHY_RDN JK5000 1 BS_RV30289 JACK_LAN_DEV EAG35781017 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 2015 02 09 18 M16 ETHERNET JACK 26 050 sht Ethernet Block PAGE 18 Copyright ⓒ...

Page 68: ...2 10K OPT R5217 3 3K RST_PHY EPHY_RDN C5208 0 1uF 16V EPHY_TDN EPHY_RDP R5205 3 3K C5202 5pF EPHY_TXD1 WOL ETH_POWER_ON C5209 33pF C5200 4 7uF 10V C5206 5pF 50V Ethernet_XTAL_LoadCap_Default C5211 0 1uF 16V R5212 1 5K 3 5V_WOL R5208 3 3K ET_RXER ET_RXER R5204 2 49K 1 R5209 51 ET_COL SNI ET_COL SNI 3 5V_WOL EPHY_MDIO EPHY_RXD1 R5219 10K EPHY_MDC EPHY_ACTIVITY EPHY_TXD0 C5201 0 1uF 16V R5200 3 3K R5...

Page 69: ...3 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 BST1A 36 RESET 37 AD 38 CLK_I 39 GND_IO 40 VDD_IO 41 EP GND C5318 0 47uF 50V R5304 3 3 1 10W 0 1uF C5322 50V L5303 NRS6045T100MMGK 10 0uH AUD_LRCK I2S_AMP R5307 3 3 1 10W SPK_L _FT R53...

Page 70: ...IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPK_L _FT SPK_L _FT SPK_R _FT SPK_R _FT P5800 250A1 WR H04M WAFER_4P_AMP_FRONT 1 2 3 4 WAFER_AMP_4P_FRONT PAGE 58 058 sht Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ...ARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 15 06 13 HP JACK 73 HP_ROUT_JACK HP_DET VA6200 5 6V HP_OUT HP_LOUT_JACK R6200 10K HP_OUT 3 3V_NORMAL JK6200 PEJ034 01 JACK_HP_OUT RS232C EAG60841811 6B T_TERMINAL2 7B B_TERMINAL2 5 T_SPRING 4 R_SPRING 3 E_SPRING 23 HP OUT Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Int...

Page 72: ...10K HP_OUT C6303 1uF 10V HP_OUT C6300 2 2uF 10V HP_OUT L6300 BLM18PG121SN1D HP_OUT C6306 10pF 50V HP_OUT R6308 150 HP_OUT R6302 43K 1 HP_OUT AUDA_OUTR IC6300 TPA6138A2 HP_OUT EAN62668301 3 OUTR 2 INR 4 GND_1 1 INR 6 VSS 5 MUTE 7 CN 8 CP 9 VDD 10 GND_2 11 UVP 12 OUTL 13 INL 14 INL HP_ROUT_JACK C6307 1uF 10V HP_OUT 3 3V_NORMAL C6310 2 2uF 10V HP_OUT C6301 0 22uF 25V HP_OUT C6305 1uF 10V HP_OUT HP_LO...

Page 73: ... 16V JAPAN R6408 10K JAPAN R6403 2 7K JAPAN R6404 OPT ZD6401 5V JAPAN R6413 1K JAPAN R6405 22 JAPAN R6400 22 JAPAN R6406 1 2K JAPAN C6403 0 1uF 16V JAPAN R6407 1 2K OPT SMARTCARD_VCC C6400 0 1uF 16V JAPAN SMARTCARD_DET C6405 0 1uF 16V JAPAN SMARTCARD_PWR_SEL C6407 0 33uF 16V JAPAN 3 3V_NORMAL SMARTCARD_COMMAND R6401 2 7K JAPAN C6401 10uF 10V JAPAN L6401 BLM18PG121SN1D JAPAN L6400 BLM18PG121SN1D JA...

Page 74: ... 33pF TU_ALL_IntDemod IF_P_TU FE_DEMOD1_TS_CLK 3 3V_TU FE_DEMOD1_TS_ERROR LNB_TX R6508 33 TU_ALL IF_AGC FE_DEMOD2_TS_SYNC FE_DEMOD2_TS_CLK R6514 200 TU_EXT_ATV FE_DEMOD1_TS_DATA 4 3 3V_TU FE_DEMOD1_TS_DATA 6 FE_DEMOD1_TS_DATA 1 FE_DEMOD1_TS_ERROR 3 3V_TU I2C_SCL5 TU_RESET2_TU TU_CVBS FE_DEMOD2_TS_ERROR I2C_SDA3 C6504 47pF 50V TU_ALL FE_DEMOD1_TS_SYNC FE_DEMOD1_TS_VAL LNB_OUT TU_RESET2 L6504 BLM18P...

Page 75: ... 7 AIF N 8 AIF P 9 GND_1 10 RESET_DEMOD 11 B2 3 3V 12 F22_OUTPUT 13 B3 1 2V 14 ERROR 15 MCLK 16 SYNC 17 VALID 18 DATA0 19 DATA1 20 DATA2 21 DATA3 22 DATA4 23 DATA5 24 DATA6 25 DATA7 26 LNB 27 GND_2 28 SHIELD TU6701 2 TDJN H303F TU_N_KR 1 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...

Page 76: ... 16W 1 JAPAN C6804 10uF 10V JAPAN R6800 10K JAPAN 3 3V_NORMAL 5V_NORMAL ZD6800 5V OPT C6805 0 1uF 16V JAPAN 2 5V_NORMAL IC6800 TJ2132GDP JAPAN 3 IN 2 EN 4 BIAS 1 POK 5 SS 6 OUT 7 FB 8 GND 9 EP GND R6801 8 2K 1 16W 1 JAPAN POWER_ON OFF2_2 10uF C6800 10V JAPAN C6802 0 01uF 50V JAPAN C6803 2700pF 50V JAPAN 10uF C6801 10V JAPAN Tuner_2 5V 2015 06 27 99 68 M16 068 sht 2A 2 5V Vout 0 6 1 R2 R1 R2 R1 Cop...

Page 77: ...3 3V_NORMAL IC6900 TJ2132GDP TU_N D M W Q 3 IN 2 EN 4 BIAS 1 POK 5 SS 6 OUT 7 FB 8 GND 9 EP GND C6901 10uF 10V TU_N D M W Q C6905 10uF 10V TU_N D M W Q R6901 10 5K TU_N D M W Q_1 2V L6900 BLM18PG121SN1D TU_N D M W Q 5V_NORMAL C6903 2700pF 50V TU_N D M W Q C6902 1uF 10V TU_N D M W Q C6904 0 01uF 50V TU_N D M W Q 0 1uF C6900 TU_N D M W Q R6902 1 18K TU_N D M W Q_1 1V R6901 1 16K TU_N D M W Q_1 1V 99...

Page 78: ..._Tx C7009 10uF 25V LNB C7012 0 1uF LNB D7003 1 40V LNB_SX34 A_GND C7002 0 22uF 25V LNB R7002 0 LNB_NON_Tx C7005 10uF 25V LNB C7003 0 01uF 50V LNB R7000 2 2K 1W LNB C7010 0 1uF 50V LNB C7008 0 1uF LNB I2C_SCL3 D7004 LNB R7003 39K 1 16W 1 LNB L7000 10uH LPH6050T 100M R LNB C7007 10uF 25V LNB IC7001 A8305SESTR LNB 1 VCP 3 NC 7 ADD 9 TCAP 10 ISET 11 VREG 12 GND 13 VIN 14 LX 15 GNDLX 16 BOOST 5 SCL 8 T...

Page 79: ...ARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 3 3V_NORMAL Q7001 MMBT3904 NXP LNB E B C Q7000 SSM3J332R LNB S G D 13V_M C7015 0 1uF 50V LNB C7014 4 7uF 10V OPT R7006 36K LNB C7013 0 1uF 50V LNB R7007 150K LNB 13V R7005 10K 1 16W 5 LNB 70 M16 2015 06 05 LNB 100 PAGE 71 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Int...

Page 80: ... RS232C 3 5V_ST C7203 0 1uF RS232C C7202 0 1uF RS232C IC7200 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 R7201 100 RS232C C7200 0 1uF RS232C VA7200 20V OPT HP_ROUT_JACK VA7201 20V OPT SOC_RX C7201 0 1uF RS232C R7200 100 RS232C SOC_TX HP_LOUT_JACK RIN1 DOUT1 RS 232C Control INTERFACE RS232C TO PHONE JACK US...

Page 81: ... 33 VBY1_M _MODULE 3 3V_NORMAL DATA_FORMAT_1 R7723 10K OPT R7722 10K OPT R7724 10K OPT R7731 33 OPT R7725 10K OPT DATA_FORMAT_0 3 3V_NORMAL JP7700 R7740 0 VBY1 R7703 0 DATA_FORMAT_0 R7713 33 VBY1_M _MODULE PWM_TCON_OUT R7733 0 VBY1_M _MODULE PWM_DIM R7701 0 VBY1_M _MODULE 1 8V_IO 3 3V_NORMAL R7735 10K EPI 1 8V_IO R7732 10K VBY1 3 3V_NORMAL R7704 1K VBY1_M _MODULE VX1_MSE R7712 100 VBY1_M _MODULE R...

Page 82: ...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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 P7901 FF05T 60P EPI_WAFER 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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 GMA15 GMA6 GMA9 GMA1 GMA10 GMA13 GMA...

Page 83: ...INCH C8051 100pF 50V EPI_65INCH TCOMP C8047 10uF 16V CLK1 C8014 10uF 10V R8012 0 VGH1 R8009 100K CLK10 CLK4 D8001 100V 1N4148W R8033 10K CLK2 C8017 10uF 10V CLK8 C8021 2200pF 50V OPT VST TP8000 CLK9 VGH1 CLK3 R8043 0 C8004 0 1uF 16V RE VST1 R8056 0 EPI_65INCH C8062 0 1uF 50V EPI_65INCH R8057 240 EPI_65INCH R8058 240 EPI_65INCH C8063 1uF 50V EPI_65INCH VGH_LDO VGH_LDO R8055 0 EPI_65INCH R8053 100 R...

Page 84: ...2 24 GND 5 SS 8 SW_2 6 PGND1 4 PGND2 2 SW2_1 25 EP GND R8106 91K EPI_55INCH PM_VCC C8133 0 1uF 25V FB SS1 R8102 180K OPT SWG C8110 0 1uF 16V C8119 10uF 10V C8106 10uF 25V OPT FB SWI C8129 10uF 25V R8114 100K L8101 VLS5045EXT 2R2N 2 2uH D8100 40V SX34 C8117 10uF 25V C8121 10uF 25V C8104 820pF 50V C8105 820pF 50V C8107 100pF 50V OPT R8119 0 R8105 43K EPI_55INCH R8110 9 1K C8128 0 1uF 16V C8125 1uF 6...

Page 85: ...FU_5 K7 RFU_11 K10 RFU_12 P7 RFU_13 P10 RSTN K5 VDD_1 C6 VDD_2 M4 VDD_3 N4 VDD_4 P3 VDD_5 P5 VDDF_1 E6 VDDF_2 F5 VDDF_3 J10 VDDF_4 K9 VDDI C2 VSS_1 C4 VSS_7 E7 VSS_8 G5 VSS_9 H10 VSS_11 K8 VSS_2 N2 VSS_3 N5 VSS_4 P4 VSS_5 P6 NC_1 A1 NC_2 A2 NC_3 A8 NC_4 A9 NC_5 A10 NC_6 A11 NC_7 A12 NC_8 A13 NC_9 A14 NC_10 B1 NC_11 B7 NC_12 B8 NC_13 B9 NC_14 B10 NC_15 B11 NC_16 B12 NC_17 B13 NC_18 B14 NC_19 C1 NC_...

Page 86: ...ED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 15 08 24 DEBUG_MNV_VOUT 3 3V_NORMAL MNT_V_OUT_SOC C9801 0 1uF DEBUG_VOUT C9802 100pF 50V OPT R9801 0 DEBUG_VOUT R9800 68 OPT IC9800 NJM2561BF1 DEBUG_VOUT EAN62990601 3 VSAG 2 VOUT 4 VIN 1 POWER_SAVE 6 V 5 GND MNT_V_OUT C9800 0 1uF DEBUG_VOUT Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purpos...

Page 87: ...G IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 15 06 16 SMD GASKET 73 C9900 10uF 6 3V Dummy_Cap_UH65 66 C9901 10uF 6 3V Dummy_Cap_UH70 M9900 EPI_49INCH_OR_EPI_55INCH Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 88: ......

Page 90: ...n off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 D Function error Remote control Local switch checking 10 MR15 operating checking 11 11 12 Wifi operating checking 12 13 Camera operating checking 13 Not used 14 External device recognition error 14 15 E Noise Circuit noise mechanical noise 15 16 F Exterior error Exterior defect 16 First of all Check whether ...

Page 91: ...nd Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 1 16 Error symptom A Video error No video Normal audio A18 A1 A18 A4 A2 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D VX1 Cable Speaker Cabl...

Page 92: ...eplace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A18 Established date Revised date 2 16 Error symptom 2 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 93: ...oldering Normal Picture Y N Y Close Y Close By using Digital signal level meter By using Diagnostics menu on OSD All Settings Channels Channel Tuning Manual Tuning Signal Strength Signal Quality Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N Normal Picture Y Close N A4 Standard Repair Process Established d...

Page 94: ...rnal device and cable Y External device Cable normal HDMI error Check external device and cable Replace Main T con B D Replace Main T con B D N N A Video error Color error A6 N Y End Replace module Request repair for external device cable Color error Check Test pattern A8 A7 Standard Repair Process Established date Revised date 4 16 Error symptom 4 Copyright ⓒ 2016 LG Electronics Inc All right res...

Page 95: ...by connecting Jig pattern Generator Set top Box etc N Y Replace Main T con B D Screen normal Check screen condition by input External Input Component HDMI Request repair for external device Component error HDMI DVI Connect other external device and cable Check normal operation of External Input Component and HDMI by connecting Jig pattern Generator Set top Box etc Replace Main T con B D Screen nor...

Page 96: ... each output of Power B D N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check ST BY 3 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A18 A18 Standard Repair Process Established date Revised date 6 16 Error symptom 6 Stand By Red or Turn On Operating Turn Off Close Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purpos...

Page 97: ... by REMOTE CONTROL POWEROFF_OFFTIMER Power off by OFF TIMER POWEROFF_SLEEPTIMER Power off by SLEEP TIMER POWEROFF_INSTOP Power off by INSTOP KEY POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power off by Reservated Record POWEROFF_RECEND Power off by End of Recording POWEROFF_SWDOWN Power off by S W Download POWERO...

Page 98: ...d and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A20 A21 A18 Disconnection Established date Revised date 8 16 Error symptom Standard Repair Process 8 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 99: ...Connect and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage A13V Replace Main B D In case of External Input signal error Check and fix external device Replace Main B D N End Est...

Page 100: ... Baterry of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A22 Normal Voltage Close N N Check 3 5v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A18 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A22 Replace Main B D Y A22 Standard Repair Process Established date Revised date 10 16 Error symptom 10 Y ...

Page 101: ...evised date 11 16 Error symptom 11 Replace MR15R Turn off on the set and press the wheel Press the back key about 5sec Close If you conduct the loop at 3times change the MR15R Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Down load the Firmware INSTART MENU 14 RF remote control Test 3 Firmware download Y RF Receiver ver is 00 00 N Close A23 A4 A4 Copyright ⓒ...

Page 102: ...nnection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 12 16 Error symptom 12 Change the Wifi assy Normal Voltage Close Y Y N Replace Main B D Wi Fi Mac value is NG N Close A24 A4 A4 A24 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 103: ...nu Camera Ver is NULL Y N Reconnect the Camera module Standard Repair Process Established date Revised date 13 16 Error symptom 13 Change the Camera module Normal operation Close Y N Replace Main B D A25 A4 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 104: ... external device cable HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date 14 16 Error symptom Standard Repair Process 14 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 105: ...n the solution manual For models without any fix information provide the description Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise Established date Revised date 15 16 Error symptom Stand...

Page 106: ...place remote control Remote control damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 16 16 Error symptom Standard Repair Process 16 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 107: ... 7 A Video error _Vertical Horizontal bar residual image light spot connection diagram A6 8 A Video error_ Color error Check Link Cable EPI reconnection condition A7 9 Adjustment Test pattern ADJ Key A8 10 Appendix Defected Type caused by T Con Inverter Module Exchange Main Board 1 A 1 5 11 Exchange Main Board 2 A 2 5 12 Exchange Power Board PSU A 3 5 13 Exchange Module 1 A 4 5 14 Exchange Module ...

Page 108: ...ff while viewing POWER OFF MODE checking method A19 19 C Audio error_ No audio Normal video Checking method in menu when there is no audio A20 20 Voltage and speaker checking method when there is no audio A21 21 D Function error remote control operation checking method A22 22 A23 A24 Continued from previous page Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service p...

Page 109: ...ack light with naked eye A Video error_No video Normal audio After turning on the power and disassembling the case check with the naked eye whether you can see light from locations A1 43UH750V ZA Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 110: ...fter recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD Entry method 1 Press the ADJ button on the remote control for adjustment 2 Enter into White Balance of item 10 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD ALL MODELS Copyright ⓒ 2016 LG Electronics I...

Page 111: ...stop A3 Established date Revised date Error symptom Content A3 MENU Quick Channel Channel Tuning Auto Tuning When the signal is strong use the attenuator 10dB 15dB 20dB etc ALL MODELS DTV Antenna Satellite Antenna Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 112: ... stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version ALL MODELS A4 Established date Revised date Error symptom Content A4 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 113: ... BOARD 3 If you can t see the UHD live TV please connect signal at left side of jack Korea model only Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop ALL MODELS A5 Established date Revised date Error symptom Content A5 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 114: ...ntal bar residual image light spot As the part connecting to the external input check the screen condition by signal A6 Established date Revised date Error symptom Content A6 ALL MODELS Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 115: ...n A Video error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date Error symptom Content A7 43UH750V ZA Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 116: ...patterns using the ADJ Key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A8 Established date Revised date Error symptom Content A8 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 117: ...older defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Abnormal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Appendix Exchange Main Board 1 A 1 5 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 118: ...r Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange Main Board 2 A 2 5 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 119: ...ix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 120: ...stalk Crosstalk Press damage Press damage A 4 5 Un repairable Cases In this case please exchange the module Press damage Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 121: ... Source TAB IC Defect Horizontal Block Gate TAB IC Defect Horizontal line Gate TAB IC Defect Gate TAB IC Defect Horizontal Block Gate TAB IC Defect Appendix Exchange the Module 2 A 5 5 Un repairable Cases In this case please exchange the module Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 122: ...cator B Power error _No power A17 Established date Revised date Error symptom Content A17 UH75 MODELS ST BY condition On or Off Power ON condition Turn Off Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 123: ...ical Manual Revised date A18 Error symptom Content Check power input voltage and ST BY 3 5V B Power error _No power A18 Check the DC 13 2V Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 124: ...m 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A19 Established date Revised date Error symptom Content A19 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 125: ...lect TV Speaker Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A20 Established date Revised date Error symptom Content A20 Copyright ⓒ 2016 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 126: ...nal and if you hear the Chik Chik sound when you touch the GND and output terminal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A21 Established date Revised date Error symptom Content A21 1 SPK_R 2 SPK_R 3 SPK_L 4 SPK_L UH75 MODELS Copyright ⓒ 2016 LG Electronics Inc All right re...

Page 127: ...peration checking method D Function error A22 Established date Revised date Error symptom Content A22 UH75 MODELS 1 3 5V_WIFI 2 WIFI_DM_JACK 3 WIFI_DP_JACK 4 GND 5 WOL WIFI_POWER_ON_JACK 6 3D_SYNC_RF_JACK 7 BT_RESET_JACK 8 GND 12 EYE_SDA_JACK 13 EYE_SCL_JACK 14 GND 15 IR 16 LED_R_JACK 17 GND 18 3 5V_ST 19 KEY2_JACK 20 KEY1_JACK 21 GND Checking order to check remote control IR Control Key front IR ...

Page 128: ... board 2 Check the 3 5V on the terminal 1 3 5V_WIFI Checking order to check motion remote wifi Wifi BT Front Wifi BT Rear 1 3 5V_WIFI 2 WIFI_DM_JACK 3 WIFI_DP_JACK 4 GND 5 WOL WIFI_POWER_ON_JACK 6 3D_SYNC_RF_JACK 7 BT_RESET_JACK 8 GND 12 EYE_SDA_JACK 13 EYE_SCL_JACK 14 GND 15 IR 16 LED_R_JACK 17 GND 18 3 5V_ST 19 KEY2_JACK 20 KEY1_JACK 21 GND Copyright ⓒ 2016 LG Electronics Inc All right reserved ...

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