LG 79UF9500 Page 32 Service Manual Download

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LGE Internal Use Only

Only for training and service purposes

7. HDMI

Summary of Contents for 79UF9500

Page 1: ...ODEL 79UF9500 79UF9500 UA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Page 2: ...All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 14 BLOCK DIAGRAM 26 EXPLODED VIEW 34 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: ...rformance LGE TV test method followed 2 Demanded other specification Safety UL CSA CE IEC specification EMC FCC ICES CE IEC specification Wireless Wireless HD Specification Option No Item Specification Remark 1 Market North America 2 Broadcasting system ATSC NTSC M 64 256 QAM 3 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 158 5 CADTV 01 158 4 Receiving system Digital ATSC DVB T2...

Page 7: ...nvironment TFT Temp 0 40 deg Humidity 0 85 ALEF Temp 0 50 deg Humidity 20 90 5 Storage Environment TFT Temp 20 60 deg Humidity 10 90 ALEF Temp 20 60 deg Humidity 10 90 6 Input Voltage AC100 240V 50 60Hz 7 1 Power Consumption Max LCD Module Backlight LED T240 79 172 3 typ W LC790EQF FHF1 8 LCD Size Maker Inch H mm V mm D mm Unit mm 9 Module Pixel Pitch LGD 79 1759 4 x 1002 4 x 13 9 LC790EQF FHF1 Di...

Page 8: ...72 59 94 74 176 HDTV 1080I 9 1920 1080 67 500 60 148 50 HDTV 1080P 10 1920 1080 67 432 59 94 148 352 HDTV 1080P No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed HDMI PC DDC 1 640 350 31 46 70 09 25 17 EGA Х 2 720 400 31 46 70 08 28 32 DOS O 3 640 480 31 46 59 94 25 17 VESA VGA O 4 800 600 37 87 60 31 40 00 VESA SVGA O 5 1024 768 48 36 60 00 65 00 VESA XGA O 6 1152 864 54 34 60 05 80 00...

Page 9: ...DTV 1080P 12 1920 1080 26 97 23 976 74 176 HDTV 1080P 13 1920 1080 33 75 30 000 74 25 HDTV 1080P 14 1920 1080 33 71 29 97 74 176 HDTV 1080P 15 3840 2160 67 5 30 00 297 00 UDTV 2160P 16 3840 2160 61 43 29 97 296 703 UDTV 2160P 17 3840 2160 56 25 25 00 297 00 UDTV 2160P 18 3840 2160 54 0 24 00 297 00 UDTV 2160P 19 3840 2160 53 95 23 976 296 703 UDTV 2160P 20 3840 2160 135 59 94 594 UDTV 2160P HDMI 1...

Page 10: ... 45 59 94 60 148 35 148 5 4 Side by side Full HDTV 720P 4 1920 1080 33 72 33 75 59 94 60 74 18 74 25 5 Top and Bottom Side by side half Secondary HDTV 1080I Primary HDTV 1080I 67 43 67 5 59 94 60 148 35 148 5 5 Frame packing Field alternative Primary HDTV 1080I HDTV 1080I 33 72 33 75 59 94 60 148 35 148 5 5 Side by side Full HDTV 1080I 26 97 27 23 97 24 74 18 74 25 32 Top and Bottom Side by side h...

Page 11: ...2160 56 25 25 00 297 00 HDTV 2160P 11 3840 2160 61 43 29 970 296 703 HDTV 2160P 12 3840 2160 67 5 30 00 297 00 HDTV 2160P 13 4096 2160 53 95 23 976 296 703 HDTV 2160P 14 4096 2160 54 24 00 297 00 HDTV 2160P 15 4096 2160 56 25 25 00 297 00 HDTV 2160P 16 4096 2160 61 43 29 970 296 703 HDTV 2160P 17 4096 2160 67 5 30 00 297 00 HDTV 2160P 18 3840 2160 135 60 594 HDTV 2160P 2D to 3D Top Bottom half Sid...

Page 12: ...tible Side by Side Half Top Bottom No Resolution H freq kHz V freq Hz Pixel clock MHz 3D input proposed mode 1 Under 704x480 2D to 3D 2 Over 704x480 interlaced 2D to 3D Side by Side Half Top Bottom 3 Over 704x480 progressive 60 2D to 3D Side by Side Half Top Bottom Checker Board Row Interleaving Column Interleaving Frame Sequential 4 Over 704x480 progressive others 2D to 3D Side by Side Half Top B...

Page 13: ...MHz Proposed Remark 1 1280 720 45 00 60 00 74 25 HDTV 720P 2D to 3D Side by Side Half Top Bottom 2 1280 720 37 500 50 74 25 HDTV 720P 3 1920 1080 33 75 60 00 74 25 HDTV 1080I 4 1920 1080 28 125 50 00 74 25 HDTV 1080I 5 1920 1080 27 00 24 00 74 25 HDTV 1080P 6 1920 1080 28 12 25 74 25 HDTV 1080P 7 1920 1080 33 75 30 00 74 25 HDTV 1080P 8 1920 1080 67 50 60 00 148 5 HDTV 1080P 9 1920 1080 56 250 50 ...

Page 14: ...e also performed in Final Assembly if needed Both Board level and Final assembly adjustment items can be check using In Start Menu 1 ADJUST CHECK 3 2 Final assembly adjustment White Balance adjustment RS 232C functionality check PING Test Factory Option setting per destination Ship out mode setting In Stop 3 3 Etc Ship out mode Service Option Default USB Download S W Update Option Service only ISP...

Page 15: ...evine 4 Play START 5 Check of result Ready Test OK or NG 4 2 4 Communication Port connection 1 Connect PCBA Jig RS 232C Port PC RS 232C Port 4 2 5 Download 1 AJ JA Models 15Y LCD TV MAC Widevine ESN HDCP2 0 4 3 LAN Inspection 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 setting at MENU Mode of TV Se...

Page 16: ...erated by Manufacturing Technology Group C Serial number D L must be conformed when it is produced in production line because serial number D L is mandatory by D book 4 0 Manual Download Model Name and Serial Number If the TV set is downloaded By OTA or Service man sometimes model name or serial number is initialized not always It is impossible to download by bar code scan so It need Manual downlo...

Page 17: ...download JIG HDMI cable and D sub cable are not need Adjust remocon 5 2 3 Download method 1 Press Adj key on the Adjust remocon then select 12 EDID D L By pressing Enter key enter EDID D L menu 2 Select Start button by pressing Enter key HDMI1 HDMI2 HDMI3 HDMI4 are Writing and display OK or NG 5 2 4 EDID DATA Reference HDMI1 HDMI3 HDMI1 HDMI4 In the data of EDID bellows may be different by Input m...

Page 18: ... _3G_UHD Deep Color OFF EDID Block 0 Bytes 0 12 EDID Block 1 Bytes 128 255 DTS HDMI2 C S A0 D5 _6G_UHD Deep Color ON EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 DTS HDMI2 C S E6 62 _3G_UHD Deep Color OFF EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 DTS HDMI3 C S E6 52 EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 ...

Page 19: ...1 C S E7 8B EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 AC3 HDMI2 C S E7 7B EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 AC3 HDMI3 C S A1 8A EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 AC3 HDMI4 C S E7 5B EDID Block 0 Bytes 0 127 EDID Block 1 Bytes 128 255 PCM HDMI1 C S F7 FD EDID Block 0 Bytes 0 127 ...

Page 20: ...sum HDMI 1 2 3 4 Input DTS FFh Checksum 6G DTS FFh Checksum 3G PCM FFh Checksum AC3 FFh Checksum HDMI1 A0 E5 E6 72 8B 8B E7 FD HDMI2 A0 D5 E6 62 7B 7B E7 ED HDMI3 E6 52 8A 8A A1 FC 5 3 Camera Port Inspection 1 Objective To check how it connects between Camera and PCBA normally and their Function 2 Test Method This Inspection is available only Power Only Status i Push Camera Up ii Camera s Preview ...

Page 21: ...ent connection MAP 5 5 4 Adj Command Protocol Command Format START 6E A 50 A LEN A 03 A CMD A 00 A VAL A CS A STOP LEN Number of Data Byte to be sent CMD Command VAL FOS Data value CS Checksum of sent data A Acknowledge Ex Send JA_00_DD Ack A_00_okDDX 1 RS 232C Command used during auto adj RS 232C COMMAND Explanation CMD DATA ID wb 00 00 Begin White Balance adj wb 00 10 Gain adj internal white pat...

Page 22: ...n ON OFF Default is inner ON By selecting OFF you can adjust using RF signal in 216 Gray pattern Adj condition and cautionary items 1 Lighting condition in surrounding area Surrounding lighting should be lower 10 lux Try to isolate adj area into dark surrounding 2 Probe location PDP Color Analyzer CA 100 CA 100 CA210 probe should be firmly attached to the Module LCD Color Analyzer CA 210 probe sho...

Page 23: ...0 265 263 279 286 304 318 8 81 119 264 261 278 284 303 316 9 Over 120 264 260 278 283 303 315 5 6 Local Dimming Function Check Step 1 Turn on TV Step 2 At the Local Dimming mode module Edge Backlight moving right to left Back light of IOP module moving Step 3 confirm the Local Dimming mode Step 4 Press exit Key 5 7 Magic Motion Remocon test Equipment RF Remocon for test IR KEY Code Remocon for tes...

Page 24: ...nsert 2 Perform GND Internal Pressure auto check Unit fully inserted Power cord Antenna cable and A V arrive to the auto check process Connect D terminal to AV JACK TESTER Auto CONTROLLER GWS103 4 ON Perform GND TEST If NG Buzzer will sound to inform the operator If OK changeover to I P check automatically Remove CORD A V form AV JACK BOX Perform I P test If NG Buzzer will sound to inform the oper...

Page 25: ...ow the message Copying 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 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 line After do...

Page 34: ...n 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 LV1 LV2 A9 A10 AG1 A22 Stand screw 410 900 910 400 301 121 122 309 303 302 307 306 305 304 570 540 530 2...

Page 35: ...O0 F1 SPI_CZ1 GPIO_PM6 GPIO19 E3 SPI_CZ2 GPIO_PM10 GPIO23 F2 DDCA_CK UART0_RX GPIO11 N5 DDCA_DA UART0_TX GPIO12 P5 GPIO67 TX1 C9 GPIO68 RX1 A10 GPIO69 TX2 E9 GPIO70 RX2 F9 GPIO71 TX3 F10 GPIO72 RX3 G10 GPIO76 TX4 D9 GPIO77 RX4 M7 GPIO94 TX5 P6 GPIO95 RX5 N6 GPIO62 A12 GPIO63 A13 GPIO64 C12 GPIO65 B12 GPIO66 C11 GPIO73 B10 GPIO74 C10 GPIO75 B11 GPIO81 TX2 F6 GPIO82 RX2 F5 GPIO88 SCK0 K6 GPIO89 SDA0...

Page 36: ...Y23 AVDDL_MOD_1 W24 AVDDL_MOD_2 Y24 AVDD15_MOD_1 Y25 AVDD15_MOD_2 Y26 AVDDL_USB3_1 AF14 AVDDL_USB3_2 AF15 VDDC_CPU_1 AA21 VDDC_CPU_2 AA27 VDDC_CPU_3 AA28 VDDC_CPU_4 AA29 VDDC_CPU_5 AB21 VDDC_CPU_6 AB22 VDDC_CPU_7 AB23 VDDC_CPU_8 AB24 VDDC_CPU_9 AB25 VDDC_CPU_10 AB26 VDDC_CPU_11 AB27 VDDC_CPU_12 AB28 VDDC_CPU_13 AB29 VDDC_CPU_14 AC21 VDDC_CPU_15 AC22 VDDC_CPU_16 AC23 VDDC_CPU_17 AC24 VDDC_CPU_18 AC...

Page 37: ...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 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 NC_6 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 V...

Page 38: ...I2C_SCL5 R607 0 I2C_SDA5 R617 0 I2C_SDA2 I2C_SCL2 R642 0 R643 0 COMPENSATION_DONE_1 COMPENSATION_DONE_1 DPC_CTRL DPC_CTRL 12V_ON 12V_ON L600 PZ1608U121 2R0TF R644 0 C601 2 2uF C603 2 2uF C602 2 2uF C604 2 2uF C614 5pF C615 5pF IC100 LGE5331 LM15U RXA0N T2 RXA0P T3 RXA1N U2 RXA1P U3 RXA2N V2 RXA2P V1 RXACKN R3 RXACKP T1 DDCDA_CK GPIO42 W1 DDCDA_DA GPIO43 W2 HOTPLUGA GPIO34 V3 CEC GPIO5 W3 RXB0N N2 ...

Page 39: ...86 W8 GND_287 W9 GND_288 W10 GND_289 W11 GND_290 W15 GND_291 W16 GND_292 W17 GND_293 W18 GND_294 W19 GND_295 W20 GND_296 W21 GND_297 W22 GND_298 W27 GND_299 W28 GND_300 W29 GND_301 W30 GND_302 W31 GND_303 Y9 GND_304 Y10 GND_305 Y11 GND_306 Y15 GND_307 Y16 GND_308 Y17 GND_309 Y18 GND_310 Y19 GND_311 Y20 GND_312 Y21 GND_313 Y22 GND_314 Y30 GND_315 Y31 GND_316 Y34 GND_317 Y37 GND_318 AA7 GND_319 AA8 ...

Page 40: ...DDR 11 CAM_CD1_N CI_MDI 0 R921 10K CI_SLOT R912 100 CI_SLOT AR909 33 CI_SLOT C904 0 1uF CI_SLOT PCM_5V_CTL R916 10K CI_MIVAL_ERR CI_MDI 7 TPI_DATA 3 CI_CD1 GND CI_OE 5V_CI_ON AR903 33 CI_SLOT CI_MDI 1 CI_OE TPI_DATA 4 R914 47 CI_SLOT CI_ADDR 5 AR905 33 CI_SLOT JK900 10125901 115LF CI_SLOT 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 51 15 9 46 40 4 35 58 22 53 17 11 48 4...

Page 41: ...M 1 GND 2 VOUT 3 VDD C2328 1uF 10V 12V R2322 22K 1 C2339 22uF 10V C2332 2200pF 50V 1 0V_DCDC_ROHM C2324 0 1uF 1 5V_DDR C2332 1 3300pF 50V 1 0V_DCDC_TI C2322 10uF 16V C2325 100pF 50V IC2303 1 TPS54327DDAR TI_TPS54327_1 5V_DDR_DCDC 3 VREG5 2 VFB 4 SS 1 EN 5 GND 6 SW 7 VBST 8 VIN 9 EP GND R2326 10K C2338 22uF 10V POWER_ON OFF2_3 C2336 0 1uF 16V ZD2302 2 5V DCDC_DIODE R2320 18K 1 IC2303 BD9D321EFJ ROH...

Page 42: ...E_DCDC_FET S D G R2507 1K R2509 33 1 16W 5 R2510 100 1 16W 1 C2506 330pF 50V 3 3V_NORMAL 1 1V_VDDC C2500 0 1uF 16V OPT 3 3V_NORMAL C2507 22uF 10V R2513 10K TU_JP R2504 13K 1 16W 1 R2500 10K 3 3V_NORMAL CORE_VID0 Q2500 2N7002KA KEC_CORE_DCDC_FET G D S R2501 0 5 IC2501 MP8762HGLE Z 3 FB 2 FREQ 4 SS 1 EN 6 PG 5 AGND 7 VCC 8 BST 9 IN_1 10 PGND_1 11 PGND_2 12 PGND_3 13 PGND_4 14 IN_2 15 SW_1 16 SW_2 Q2...

Page 43: ...SCL11 13 P50 INTP1 SI11 SDA11 14 P51 INTP2 SO11 15 P17 TI02 TO02 16 P16 TI01 TO01 INTP5 17 P15 PCLBUZ1 SCK20 SCL20 18 P14 RXD2 SI20 SDA20 19 P13 TXD2 SO20 20 P12 SO00 TXD0 TOOLTXD 21 P11 SI00 RXD0 TOOLRXD SDA00 22 P10 SCK00 SCL00 23 P146 24 P147 ANI18 25 P27 ANI7 26 P26 ANI6 27 P25 ANI5 28 P24 ANI4 29 P23 ANI3 30 P22 ANI2 31 P21 ANI1 AVREFM 32 P20 ANI0 AVREFP 33 P130 34 P01 TO00 RXD1 35 P00 TI00 T...

Page 44: ...DATA1 15 SCL R3329 33 R3330 33 R3331 33 R3332 33 R3333 33 R3334 33 DDC_SDA_3 IC3301 BR24G02FJ 3GTE2 ROHM_HDMI_EXT_EDID 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC IC3301 1 AT24C02C SSHM T ATMEL_HDMI_EXT_EDID 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC Q3301 2N3904S KEC_HDMI_HPD_2_TR E B C Q3303 2N3904S KEC_MHL_TR E B C Q3302 2N3904S KEC_HDMI_EXT_EDID_TR E B C Q3304 2N3906S RTK KEC_MHL_TR E B C JK3...

Page 45: ...0 470K VA3802 5 6V C3804 100pF 50V OPT COMP1_Y C3810 27pF 50V OPT R3818 150 1 10W 5 RIN1 R3809 0 NON_MOLD_B C_ESD R3801 470K AV1_CVBS_DET C3811 47pF 50V R3832 0 NON_MOLD_B C_ESD TP3801 C3807 1000pF 50V OPT COMP1_Pr C3818 0 1uF 16V R3822 100 1 16W 5 C3803 100pF 50V OPT COMP1_DET R3808 75 1 4W 1 VA3807 5 5V OPT R3805 0 3 3V_NORMAL HP_LOUT_AMP R3831 0 COMP1 AV1 DVI_R_IN C3802 560pF 50V OPT 3 3V_NORMA...

Page 46: ... 12 KEY1 7 WOL 2 3 5V_WOL 16 3 5V_ST 11 SCL 6 USB_DP 1 GND 15 IR 10 GND 5 NC 19 GND WOL WIFI_POWER_ON IC4100 AP2191WG 7 3 FLG 2 GND 4 EN 1 OUT 5 IN 3 5V_ST R4116 10K 1 R4112 100 C4111 0 1uF OPT C4103 0 1uF WIFI_EN D4100 RCLAMP0502BA IC4101 AO R123C7G LG IR_PROTO G GND V VS O OUT R4110 10K 5 KEY1 LOGO_LIGHT 3 5V_ST R4104 1K LOGO_LIGHT IR 3 5V_WIFI C4109 5pF 50V R4103 330 1 16W 5 IR_PROTO R4102 10K ...

Page 47: ...RCLAMP0502BA ZD4302 5V C4300 0 1uF 16V IC4300 BD2242G 3 EN 2 GND 4 OC 1 VIN 6 VOUT 5 ILIM SSUSB_TXP C4322 10uF 10V D4300 RCLAMP0502BA 5V_USB_1 D4303 5V R4304 10K USB_OCD3 R4302 0 USB_DM DP_0ohm SSUSB_RXP USB_DP3 5V_USB_2 JK4302 3AU04S 305 ZC LG 1 2 3 4 5 JK4300 3AU04S 305 ZC LG 1 2 3 4 5 D4304 6 5VTO11 0V RCLAMP0544T TCT USB3 0_TVS 1 8 2 7 3 6 4 5 9 D4305 6 5VTO11 0V RCLAMP0544T TCT USB3 0_TVS 1 8...

Page 48: ..._R_IN 3 AUDIO_L_OUT 4 AUDIO_GND 5 B_GND 6 AUDIO_L_IN 7 B_OUT 8 ID 9 G_GND 10 D2B_IN 11 G_OUT 12 D2B_OUT 13 R_GND 14 RGB_GND 15 R_OUT 16 RGB_IO 17 SYNC_GND1 18 SYNC_GND2 19 SYNC_OUT 20 SYNC_IN 21 COM_GND 22 AV_DET SC_L_IN DTV MNT_V_OUT C4601 1000pF 50V EU VA4602 5 6V EU C4606 68pF 50V EU R4616 15K EU SC_DET VA4604 5 5V EU DTV MNT_R_OUT R4615 0 EU R4612 12K EU AV2 DTV MNT_L_OUT SC_ID R4601 10K EU AV...

Page 49: ... IN THE SYMBOL MARK OF THE SCHEMETIC LAN_H 2014 12 15 50 LM15U EPHY_RDN EPHY_TDP EPHY_RDP EPHY_TDN VA5002 5 5V C5001 0 01uF 50V VA5000 5 5V VA5003 5 5V C5000 0 1uF 16V VA5001 5 5V JK5000 RJ45VT 01SN002 OLD_LAN_JACK 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 JK5000 1 BS RV30330 NEW_LAN_JACK_ESD 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 Ethernet Block Copyright ⓒ 2015 LG Electronics Inc All right reserved Only f...

Page 50: ... 3 3 1 10W 5 C5801 1uF 10V 0 1uF C5805 16V C5806 1000pF 50V R5808 3 3 1 10W 5 C5817 1uF 10V C5816 390pF 50V R5805 100 1 16W C5807 22000pF 50V R5809 3 3 1 10W 5 L5800 UBW2012 121F C5800 1uF 10V 10uF C5809 35V R5801 10K 0 1uF C5824 50V R5812 4 7K C5812 22000pF 50V R5814 4 7K C5802 33pF 50V L5802 10 0uH NRS6045T100MMGK TAIYO_AMP_COIL P5800 WAFER ANGLE 1 2 3 4 L5801 PZ1608U121 2R0TF L5802 1 10 0uH GET...

Page 51: ...SPK_L _WF C5911 1uF 10V Woofer_AMP I2C_SDA4 24V_AMP_WOOFER 3 3V_NORMAL R5903 3 3 1 10W Woofer_AMP C5906 22000pF 50V Woofer_AMP AUD_LRCK C5917 0 47uF 50V Woofer_AMP 24V_AMP_WOOFER I2C_SCL4 WOOFER_MUTE 0 1uF C5919 50V Woofer_AMP L5901 BLM18PG121SN1D Woofer_AMP L5900 UBW2012 121F Woofer_AMP L5902 NRS6045T100MMGK Woofer_TAIYO_AMP_COIL 10 0uH C5910 22000pF 50V Woofer_AMP IC5900 NTP7515 Woofer_AMP 3 NC_...

Page 52: ...K EU R6008 33K EU Q6000 MMBT3904 NXP EU E B C L6000 EU R6007 100K 1 16W 5 OPT R6010 470K OPT SCART_AMP_L_FB SCART_AMP_L_FB IC6000 AZ4580MTR E1 EU 3 IN1 2 IN1 4 VEE 1 OUT1 5 IN2 6 IN2 7 OUT2 8 VCC R6012 100K 1 16W 5 OPT Q6001 MMBT3904 NXP EU E B C R6000 2 2K EU C6012 330pF EU DTV MNT_L_OUT C6002 6800pF OPT SCART_Lout DTV MNT_R_OUT C6000 10uF EU C6003 33pF EU R6016 5 6K EU Q6002 RT1P141C T112 EU_SCA...

Page 53: ...V C6107 0 1uF 16V HP_ROUT_AMP R6101 10K R6104 43K 1 C6100 1uF 10V C6103 1uF 10V HP_LOUT_AMP R6105 4 7K HP_LOUT_MAIN C6102 1uF 10V R6103 43K 1 C6105 1uF 10V R6106 43K 1 SIDE_HP_MUTE C6108 10pF 50V HP_ROUT_MAIN 3 3V_NORMAL R6102 43K 1 R6107 0 OPT IC6100 TPA6138A2 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 C6109 18pF R6100 10K C6101 1uF 10V R6108 0 O...

Page 54: ... VPP C7 I O C8 RESERVED S1 SW1 S2 SW2 R6304 2 7K JAPAN R6313 75 JAPAN L6300 BLM18PG121SN1D JAPAN R6300 33 JAPAN IC6300 TDA8024TT JAPAN 3 5V 3V 2 CLKDIV2 4 PGND 1 CLKDIV1 6 VDDP 5 S2 7 S1 8 VUP 9 PRES 10 PRES 11 I O 12 AUX2 13 AUX1 14 CGND 15 CLK 16 RST 17 VCC 18 PORADJ 19 CMDVCC 20 RSTIN 21 VDD 22 GND 23 OFF 24 XTAL1 25 XTAL2 26 I OUC 27 AUX1UC 28 AUX2UC 3 3V_NORMAL C6307 0 33uF 16V JAPAN R6305 2 ...

Page 55: ...U_K M W_TW BR CO C6503 47pF 50V OPT 3 3V_NORMAL I2C_SDA2_TU FE_DEMOD2_TS_SYNC FE_DEMOD1_TS_CLK C6504 0 1uF TU_K M W_TW BR CO FE_DEMOD1_TS_DATA 0 7 FE_DEMOD1_TS_ERROR C6506 0 1uF TU_M W FE_DEMOD2_TS_ERROR IC6500 AP2132MP 2 5TRG1 TU_M W 3 VIN 2 EN 4 VCTRL 1 PG 5 NC 6 VOUT 7 ADJ 8 GND 9 EP TU_CVBS FE_DEMOD1_TS_DATA 4 FE_DEMOD2_TS_CLK RF_SWITCH_CTL_TU FE_DEMOD1_TS_DATA0_1 R6502 0 TU_K M W_NON_JP RF_SW...

Page 56: ...2 NC_1 3 NC_2 4 SCL_RF 5 SDA_RF 6 NC_3 7 NC_4 8 SIF 9 CVBS 10 NC_5 11 3 3V_RF 12 ERROR 13 GND_1 14 MCLK 15 SYNC 16 VAILD 17 D0 18 D1 19 D2 20 D3 21 D4 22 D5 23 D6 24 D7 25 RESET_DEMOD 26 3 3V_DEMOD 27 SCL_DEMOD 28 1 2V_DEMOD 29 NC_6 30 SDA_DEMOD 47 SHIELD B1 B1 A1 A1 TU6702 4 TDJM C401D TDJM C401D 1 3 3V 2 NC_1 3 NC_2 4 SCL_RF 5 SDA_RF 6 NC_3 7 NC_4 8 SIF 9 CVBS 10 NC_5 11 3 3V_RF 12 ERROR 13 GND_...

Page 57: ...1uF LNB_ALLEGRO I2C_SCL2 C6912 0 1uF LNB D6904 40V LNB_SMAB34 A_GND D6901 1 30V SS23L LNB_TSC IC6900 A8303SESTR T LNB_ALLEGRO 1 VCP 3 NC_1 7 SCL 9 ADD 10 TONECTRL 11 TCAP 12 ISET 13 VREG 14 GND 15 VIN 16 LX 17 GNDLX 18 NC_2 19 NC_3 20 BOOST 5 TDO 8 SDA 6 IRQ 4 TDI 2 LNB 21 EP GND D6902 30V LNB_ONSEMI D6902 1 30V SS23L LNB_TSC R6903 39K 1 16W 1 LNB A_GND A_GND L6900 15uH LPH6050T 150M R LNB R6905 0...

Page 58: ...up HTPDAn_IN 1 8V TXDAN6_L TXDAN4_L C7100 10uF 25V 51pin_12V Data_Format_1 R7102 10K OPT Q7100 2N7002KA KEC_LGD INX_Module_TCON_I2C_EN_FET G D S Q7101 2N7002KA KEC_LGD INX_Module_TCON_I2C_EN_FET G D S Q7100 1 2N7002K DIODES_LGD INX_Module_TCON_I2C_EN_FET S D G Q7101 1 2N7002K DIODES_LGD INX_Module_TCON_I2C_EN_FET S D G Q7102 1 MMBT3904 NXP NXP_LOCKAn_HTPDAn_3 3VPullup_TR E B C Q7104 1 MMBT3904 NXP...

Page 59: ...HE SCHEMETIC Vx1 41P 14 07 19 22 UF71 7500 TXDBN0_L TXDBN4_L TXDBN7_L TXDBP1_L TXDBN2_L TXDBP2_L TXDBN3_L TXDBN5_L TXDBP4_L TXDBP0_L TXDBN6_L TXDBP3_L TXDBN1_L TXDBP7_L TXDBP6_L TXDBP5_L P7200 SP14 11592 01 41Pin 41pin_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 41P Vx1 output wafer Copyright ⓒ 2015 LG Electronics Inc A...

Page 60: ...G5 VSS_4 H10 VSS_6 K8 VSSQ_1 C4 VSSQ_2 N2 VSSQ_3 N5 VSSQ_4 P4 VSSQ_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_20 C3 NC_22 C7 NC_23 C8 NC_24 C9 NC_25 C10 NC_26 C11 NC_27 C12 NC_28 C13 NC_29 C14 NC_30 D1 NC_31 D2 NC_32 D3 NC_33 D4 NC_34 D12 NC_35 D13 NC_36 D14 NC_3...

Page 61: ... 7500 3 5V_ST C6809 0 1uF RS232C ZD6803 20V ADUC 20S 02 010L OPT C6813 0 1uF RS232C C6810 0 1uF RS232C RIN1 IC6801 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 DOUT1 C6808 0 1uF RS232C ZD6802 ADUC 20S 02 010L 20V OPT R6820 100 RS232C SOC_RX C6811 0 1uF RS232C SOC_TX R6821 100 RS232C RS 232C Control INTERFAC...

Page 62: ...BLM18PG121SN1D C13304 0 1uF 16V LOCKAn_OSD Q1901 MMBT3906 NXP E B C C12908 0 1uF C13016 0 1uF TXVBY1_1N C2194 10uF 10V IC2500 LGE7411 URSA9 RB0N AG2 RB0P AG1 RB1N AH3 RB1P AH1 RB2N AH2 RB2P AJ3 RBCKN AJ2 RBCKP AK2 RB3N AK1 RB3P AL1 RB4N AM2 RB4P AL2 RC0N AK3 RC0P AL3 RC1N AK4 RC1P AL4 RC2N AM4 RC2P AK5 RCCKN AM5 RCCKP AL5 RC3N AK6 RC3P AL6 RC4N AK7 RC4P AL7 RD0N AM7 RD0P AK8 RD1N AM8 RD1P AL8 RD2N...

Page 63: ...VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 NC_6 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 VSSQ_5 E2 VSSQ_6 E8 VSSQ_7 F9 VSSQ_8 G1 VSSQ_9 G9 H5TQ1G63EFR RDC IC2900 URSA_DDR_Hynix A0 N3 A1 P7 A2 P3 A3 N...

Page 64: ... NC_5 C6 NC_6 C7 NC_7 D4 NC_8 D5 NC_9 D6 NC_10 D7 NC_11 E4 NC_12 E5 NC_13 E6 NC_14 E7 NC_15 F4 NC_16 F5 NC_17 M5 NC_18 M6 NC_19 M7 NC_20 N5 NC_21 R7 NC_22 P7 NC_23 N7 NC_24 N6 I2C_HSC_SDA VSYNC_LIKE2 AG25 I2C_HSC_SCL VSYNC_LIKE3 AH25 SPI1_CK PWM2 GPIO58 AH28 SPI1_DI PWM3 GPIO59 AJ27 SPI2_CK PWM0 GPIO56 AJ29 SPI2_DI PWM1 GPIO57 AF27 SPI3_CK DIM10 GPIO54 AG28 SPI3_DI DIM11 GPIO55 AH27 SPI4_CK DIM8 G...

Page 65: ...4 VSS_208 P14 VSS_209 R14 VSS_210 T14 VSS_211 U14 VSS_212 V14 VSS_213 W14 VSS_214 Y14 VSS_215 AA14 VSS_216 AB14 VSS_217 AE14 VSS_218 AF14 VSS_219 AG14 VSS_220 AH14 VSS_221 AJ14 VSS_222 A15 VSS_223 B15 VSS_224 D15 VSS_225 G15 VSS_226 H15 VSS_227 J15 VSS_228 K15 VSS_229 L15 VSS_230 M15 VSS_231 N15 VSS_232 P15 VSS_233 R15 VSS_234 T15 VSS_235 U15 VSS_236 V15 VSS_237 W15 VSS_238 Y15 VSS_239 AA15 VSS_24...

Page 66: ...22uF 10V IC13403 1 TPS54327DDAR DCDC_TI_TPS54327 3 VREG5 2 VFB 4 SS 1 EN 5 GND 6 SW 7 VBST 8 VIN 9 EP GND ZD13401 2 5V DCDC_DIODE C13426 22uF 10V C13443 10uF 16V ZD13418 2 5V DCDC_DIODE C13400 0 1uF 16V OPT R13421 18K 1 R13407 100K 1 16W 1 L13411 BLM18PG121SN1D R13423 22K 1 12V C13446 1 3300pF 50V 1 0V_DCDC_TI C13416 10uF 25V L13415 1 0uH LPBN8050T 1R0N 12V C13449 22uF 10V C13411 0 1uF 16V IC13403...

Page 67: ...1 5T GASKET_8 0X6 0X11 5H MDS62110209 M4111 1 USB3_BOT_SMD_8 5T GASKET_8 0X6 0X8 5H MDS62110209 M4115 GASKET_8 0X6 0X8 5H HDMI3_BOT_SMD_8 5T MDS62110225 M4120 GASKET_8 0X6 0X10 5H SMD_BOT_15_10 5T MDS62110225 M4115 1 GASKET_8 0X6 0X10 5H HDMI3_BOT_SMD_10 5T MDS62110225 M4114 GASKET_8 0X6 0X10 5H SMD_BOT_11_10 5T MDS62110225 M4104 GASKET_8 0X6 0X10 5H SMD_BOT_6_10 5T MDS62110228 M4108 2 HDMI2_BOT_S...

Page 68: ...GND_A4_22nF C6703 0 022uF 630V TU_GND_B1_22nF MDS62110225 M13700 GASKET_8 0X6 0X10 5H TU_BOT_SMD1 MDS62110225 M13701 GASKET_8 0X6 0X10 5H TU_BOT_SMD2 MDS62110225 M13702 GASKET_8 0X6 0X10 5H TU_BOT_SMD3 R6701 1 1000pF 630V TU_GND_A1_1nF C6700 1 1000pF 630V TU_GND_A4_1nF LM15U ONLY LM15U URSA TUNER EMS GND SEPERATION GND_A GND_B JP AJJA TW COL EU CIS North AM CN HK KR BR BR KR JP North AM TU_GND_B A...

Page 69: ......

Page 70: ...to on 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 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 there...

Page 71: ...arts End 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 LVDS Cable Speak...

Page 72: ...and replace 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 2 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 73: ...k Tuner soldering Normal Picture Y N Y Close Y Close By using Digital signal level meter By using Diagnostics menu on OSD Advanced Channels Channel Tuning Manual Tuning Check the Signal 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 date Revis...

Page 74: ...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 4 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right res...

Page 75: ... 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 DVI Request repair for external device Component error HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main T con B D ...

Page 76: ... 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 6 Stand By Red or Turn On Operating Turn Off Close Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purpos...

Page 77: ...TROL 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 POWEROFF_UNKNOWN Pow...

Page 78: ...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 Standard Repair Process 8 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 79: ... 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 24V Replace Main B D In case of External Input signal error Check and fix external device Replace Main B D N End Est...

Page 80: ... 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 10 Y Error symptom ...

Page 81: ...evised date 11 16 11 Replace MR13 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 M4 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 Remocon Test 3 Firmware download Y RF Receiver ver is 00 00 N Close A23 A4 A4 Error symptom Copyright ⓒ 2015 LG El...

Page 82: ...nnection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 12 16 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 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 83: ... NULL Y N Reconnect the Camera module Standard Repair Process Established date Revised date 13 16 13 Change the Camera module Normal operation Close Y N Replace Main B D A25 A4 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 84: ... 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 Standard Repair Process 14 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 85: ... the solution manual For models without any fix information provide the description OR 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 Standard Repair P...

Page 86: ...ce remote controller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 16 16 Standard Repair Process 16 Error symptom Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 87: ...A5 7 A Video error _Vertical Horizontal bar residual image light spot TV 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 Mo...

Page 88: ...l 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 controller operation checking method A22 22 Motion Remote operation checking method A23 23 Wifi operation checking method A24 24 Camera operation checking method A25 Not Used 25 E Etc Tool option changing method A26 Continued from previous page Cop...

Page 89: ...ck LCD back 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 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 90: ... 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 controller 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 Error symptom Content Copyright ⓒ 2015 LG Electronic...

Page 91: ...andard Repair Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop ALL MODELS A3 Established date Revised date A3 Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 92: ...top 1 Checking method for remote controller for adjustment Press the IN START with the remote controller for adjustment Version ALL MODELS A4 Established date Revised date A4 v Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 93: ... 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 A5 Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 94: ...ontal bar residual image light spot As the part connecting to the external input check the screen condition by signal A6 Established date Revised date A6 ALL MODELS Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 95: ...n A Video error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date A7 ALL MODELS Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 96: ...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 A8 Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 97: ...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 ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 98: ...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 ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 99: ...ix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 100: ...hange the Module 1 Press damage A 4 5 Un repairable Cases In this case please exchange the module Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 101: ... 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 ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 102: ...l Manual Revised date A18 Check power input voltage and ST BY 3 5V B Power error _No power A18 Check the DC 24V 12V 3 5V Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 103: ...tem 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 A19 Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 104: ...t Internal 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 A20 Error symptom Content Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 105: ... 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 A21 23 PWR ON 24 DVR_ON 21 P_DIM 1 22 PDIM 2 19 3 5V 20 GND 17 3 5V 18 3 5V 15 GND 16 GND 13 12V 14 12V 11 12V 12 12V 9 12V 10 GND 7 GND 8 24V 5 2...

Page 106: ...ve slowly otherwise it s defective Standard Repair Process Detail Technical Manual Remote controller operation checking method D Function error A22 Established date Revised date A22 79UF77 95 1 GND 2 3 5V WOL 3 BT_RESET 4 USB_DM 5 NC 6 USB_DP 7 WOL 8 GND 9 SDA 10 GND 11 SCL 12 KEY1 13 GND 14 KEY2 15 IR 16 3 5V_ST 17 LED_R 18 GND Checking order to check remote controller IR LOGO light front IR LOGO...

Page 107: ...9UF77 95 1 GND 2 3 5V WOL 3 BT_RESET 4 USB_DM 5 NC 6 USB_DP 7 WOL 8 GND 9 SDA 10 GND 11 SCL 12 KEY1 13 GND 14 KEY2 15 IR 16 3 5V_ST 17 LED_R 18 GND Checking order 1 Check BT Wifi cable condition between BT Wifi assy Main board 2 Check the 3 5V on the terminal 16 Checking order to check motion remote wifi Wifi BT Front Wifi BT Rear Error symptom Content ...

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