LG 32LM6200 Service Manual Download

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Checking method

1. Press the MENU button on the remote controller

2. Select the AUDIO function of the Menu

3. Select TV Speaker from Off to On

Checking method in menu when there is no audio

C. Audio error_No audio/Normal video

A24

Established

date

Revised

date

Error

symptom

Content

LCD TV

2010. 12 .14

Standard Repair Process Detail Technical Manual

LGE Internal Use Only

Summary of Contents for 32LM6200

Page 1: ...EL 42LM6400 42LM6400 SA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED LCD 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: ...Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 14 EXPLODED VIEW 22 SCHEMATIC CIRCUIT DIAGRAM ...

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: ...rt is tested as below without special notice 1 Temperature 25 ºC 5 ºC 77 9 ºF CST 40 5 ºC 2 Relative Humidity 65 10 3 Power Voltage AC 100 240 V 50 60 Hz Standard Voltage of each products is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 20 minutes prior to th...

Page 5: ...e Environment 1 Temp 20 60 deg 2 Humidity 10 90 6 Input Voltage AC100 240V 50 60Hz 7 Power Consumption Max LCD Module Backlight LED FHD T120Hz Edge LED 32 38 W Normal LC320EUN SEM1 32LS5700 SB 42 48 W Normal LC420EUE SEM1 42LS5700 SB 47 72 W Normal LC470EUE SEM1 47LS5700 SB 60 W Normal TBD 60LS5700 SB FHD T120 M120 Hz Edge LED FPR GPR 32 38 W FPR LC320EUN SEF2 32LM6200 SA 42 48 W FPR LC420EUE SEF1...

Page 6: ...Edge 3D_T120Hz LC550EUH KEF1 Edge 3D_T240Hz AUO 65 1508 x 878 x 12 8 Pixel Pitch Maker Inch H V D LGD 32 0 36375 x 0 36375 LC320EUN SEM1 LC320EUN SEF2 0 12125 x 0 12125 LC320EUA PEF1 42 0 4845 x 0 4845 LC420EUE SEF1 LC420EUE SEM1 LC420EUG PEF1 LC420EUH PEF1 47 0 5415 x 0 5415 LC470EUE SEF1 LC470EUE SEM1 LC470EUH PEF1 0 51415 x 0 51415 LC470EUG PEF1 55 0 630 x 0 630 LC550EUE SEF1 Edge 3D_T120Hz LC5...

Page 7: ...74 176 HDTV 720P 10 1929 1080 28 125 50 74 25 HDTV 1080I 11 1920 1080 33 75 60 00 74 25 HDTV 1080I 12 1920 1080 33 72 59 94 74 176 HDTV 1080I 13 1920 1080 56 25 50 148 5 HDTV 1080P 14 1920 1080 67 50 60 148 50 HDTV 1080P 15 1920 1080 67 432 59 94 148 352 HDTV 1080P 16 1920 1080 27 00 24 00 74 25 HDTV 1080P 17 1920 1080 26 97 23 976 74 176 HDTV 1080P 18 1920 1080 33 75 30 00 74 25 HDTV 1080P 19 192...

Page 8: ...g FHD only DTV 1 720 480 15 73 59 94 13 500 SDTV DVD 480I 525I 2 720 480 15 75 60 00 13 514 SDTV DVD 480I 525I 3 720 576 15 625 50 00 13 500 SDTV DVD 576I 625I 50Hz 4 720 480 31 47 59 94 27 SDTV 480P 5 720 480 31 5 60 00 27 027 SDTV 480P 6 720 576 31 25 50 00 27 SDTV 576P 7 1280 720 44 96 59 94 74 176 HDTV 720P 8 1280 720 45 60 00 74 25 HDTV 720P 9 1280 720 37 5 50 00 74 25 HDTV 720P 10 1920 1080 ...

Page 9: ...ntial 3 1920 1080 33 75 60 00 74 25 HDTV 1080I 2D to 3D Side by Side half Top Bottom 4 1920 1080 28 125 50 00 74 25 HDTV 1080I 2D to 3D Side by Side half Top Bottom 5 1920 1080 27 00 24 00 74 25 HDTV 1080P 2D to 3D Side by Side half Top Bottom Checkerboard 6 1920 1080 28 12 25 74 25 HDTV 1080P 2D to 3D Side by Side half Top Bottom Checkerboard 7 1920 1080 33 75 30 00 74 25 HDTV 1080P 2D to 3D Side...

Page 10: ...y side Full SDTV 480P 7 720 576 31 25 50 27 Top and Bottom Side by side half Secondary SDTV 576P Secondary SDTV 576P 8 62 5 50 54 Frame packing Line alternative Secondary SDTV 576P SDTV 576P 9 31 25 50 54 Side by side Full SDTV 576P 10 15 625 50 27 Top and Bottom Side by side half Secondary SDTV 576I Secondary SDTV 576I 11 31 25 50 54 Frame packing Field alternative Secondary SDTV 576I SDTV 576I 1...

Page 11: ...1080P 28 28 12 25 74 25 Top and Bottom Side by side half Secondary HDTV 1080P Secondary HDTV 1080P 29 56 25 25 148 5 Frame packing Line alternative Secondary HDTV 1080P HDTV 1080P 30 28 125 25 148 5 Side by side Full HDTV 1080P 31 33 716 33 75 29 976 30 00 74 18 74 25 Top and Bottom Side by side half Primary HDTV 1080P Secondary HDTV 1080P 32 67 432 67 5 29 976 30 00 148 35 148 5 Frame packing Lin...

Page 12: ...f Top Bottom HDTV 1080P 4 Others 2D to 3D 640 350 720 400 640 480 800 600 1152 864 1280 1024 5 2 7 USB Input 3D 3D supported mode manually No Resolution H freq kHz V freq Hz Pixel clock MHz 3D input proposed mode Proposed 1 1920 1080 33 75 30 74 25 2D to 3D Side by Side Half Top Bottom Checkerboard Row Interleaving Column Interleaving Photo side by Side half Top Bottom HDTV 1080P 5 2 8 DLNA Input ...

Page 13: ...59 94 74 176 2D to 3D Side by Side half Top Bottom HDTV 1080I 6 1920 1080 28 12 50 74 25 2D to 3D Side by Side half Top Bottom HDTV 1080I 7 1920 1080 67 500 60 148 50 2D to 3D Side by Side half Top Bottom HDTV 1080P 8 1920 1080 67 432 59 94 148 352 2D to 3D Side by Side half Top Bottom HDTV 1080P 9 1920 1080 27 000 24 000 74 25 2D to 3D Side by Side half Top Bottom HDTV 1080P 10 1920 1080 28 12 25...

Page 14: ...ttern In this status you can maintain Heat Run useless any pattern generator Notice if you maintain one picture over 20 minutes Especially sharp distinction black with white pattern 13Ch or Cross hatch pattern 09Ch then it can appear image stick near black level 3 Adjustment items 3 1 PCB Assembly Adjustment MAC Address ESN Widevine Download Adjust 1080p Comp1 RGB Except GP3 BCM MODEL using ADC OT...

Page 15: ...condition NGx Failed condition 5 Read Adjustment data main ad 00 20 main ad 00 30 main component1 480i RGB 1080p 000000000000000000000000007c007b 006dx main component1 1080p 000000070000000000000000007c0083 0077x 6 Confirm Adjustment ad 00 99 NG 03 00x Failed condition NG 03 01x Failed condition NG 03 02x Failed condition OK 03 03x Success condition 7 End of Adjustment ad 00 90 d 00 OK90x See ADC ...

Page 16: ...com mand Edid data and Model option download Download A E Note1 Note2 Automatically download The use of a internal Data Adjust Mode Out A E 9 0 Adjustment Confirma tion A E 9 9 To check Download on Assembly line Manual Download Write HDMI EDID data Using instruments Jig PC Serial to D Sub connection for PC DDC adjustment S W for DDC recording EDID data write and read D sub jack Additional HDMI cab...

Page 17: ...t is availed communicate with RS 232C Baud rate 115200 Video Signal Generator MSPG 925F 720p 216Gray Model 217 Pattern 78 Connection Diagram Auto Adjustment Using Inner Pattern Using HDMI input Pic 5 Connection Diagram for Adjustment White balance White Balance Adjustment If you can t adjust with inner pattern then you can adjust it using HDMI pattern You can select option at Ez Adjust Menu 7 Whit...

Page 18: ...sated White Red Green Blue compensation with CS 2100 See the Coordination bellowed one Manual adjustment sequence is like bellowed one Turn to Ez Adjust mode with press ADJ button of service remocon Select 10 Test Pattern with CH button and press enter Then set will go on Heat run mode Over 30 minutes set let on Heat run mode Let CA 210 to zero calibration and must has gap more 10cm from center of...

Page 19: ...293 313 329 1 0 2 283 293 299 313 320 339 2 3 5 282 291 298 311 319 337 3 6 9 281 290 297 310 318 336 4 10 19 279 289 295 309 316 335 5 20 35 277 284 293 304 314 330 6 36 49 274 279 290 299 311 325 7 50 79 271 277 287 297 308 323 8 80 119 270 274 286 294 307 320 9 Over 120 269 273 285 293 306 319 5 3 EYE Q function check 1 Turn on TV 2 Press EYE key of Adj R C 3 Cover the Eye Q II sensor on the fr...

Page 20: ...220 HDMI Cable for 1 4 version 5 6 2 Test method 1 Insert the HDMI Cable to the HDMI ARC port from the master equipment HDMI1 2 Check the sound from the TV Set 3 Check the Sound from the Speaker or using AV Optic TEST program It s connected to MSHG 600 Remark Inspect in Power Only Mode and check SW version in a master equipment 5 7 Selection of Country option Selection of country option is allowed...

Page 21: ...tice it with Good lamp and STOPER Down Check Items 10 Test Voltage GND 1 5KV min at 100Ma Signal 3KV min at 100Ma 11 Test time just 1 second 12 Test point GND test Test between Power cord GND and Signal cable metal GND ESD test Test between Power cord GND and Live and neutral 13 Leakage current Set to 0 5Ma rms 7 Default Service option 7 1 ADC Set R Gain adjustment Value default 128 G Gain adjustm...

Page 22: ...tified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 710 300 501 500 570 560 510 810 700 200 530 540 120 121 122 522 521 400 910 900 A...

Page 23: ...STB AH26 AVDD33_VGA_STB AK18 AVSS33_VGA_STB AK17 AVDD33_PLLGP AK23 AVSS33_PLLGP AM27 AVDD10_LDO AJ20 GPIO0 H32 GPIO1 F37 GPIO2 F36 GPIO3 G37 GPIO4 G36 GPIO5 G35 GPIO6 G34 GPIO7 H34 GPIO8 L34 GPIO9 L32 GPIO10 K33 GPIO11 K32 GPIO12 H33 GPIO13 L35 GPIO14 K36 GPIO15 J32 GPIO16 J34 GPIO17 K34 GPIO18 K35 GPIO19 K37 GPIO20 J36 GPIO21 J37 GPIO22 J35 GPIO23 J33 GPIO24 G33 GPIO25 H35 GPIO26 H31 GPIO27 F34 G...

Page 24: ...KN TXBCLKP COMP1_Y TP344 TP361 R349 0 OPT HP_LOUT CI_A_VS1 DSUB_R COMP1_Pb_SOC CI_CD2 TP327 TP364 TP369 TXA3P TXB2N TXB3N C342 100pF 50V TP333 MT5369_TS_IN 3 C339 560pF 50V OPT R325 2K OPT R302 180 C352 0 01uF TXC3N PC_R_IN_SOC DSUB_B R364 100 DSUB_HSYNC_SOC TXD4P TP354 C396 33pF OPT 5V_NORMAL TXD1N C306 0 1uF MODEL_OPT_10 2D 3D_CTL MODEL_OPT_2 PCM_5V_CTL EMMC_RST MODEL_OPT_8 MODEL_OPT_9 VCOM_DYN ...

Page 25: ...4 U21 DVSS_93 V21 DVSS_105 W21 DVSS_118 Y21 DVSS_128 AA21 DVSS_138 AB21 DVSS_64 R22 DVSS_75 T22 DVSS_85 U22 DVSS_94 V22 DVSS_106 W22 DVSS_119 Y22 DVSS_129 AA22 DVSS_139 AB22 DVSS_65 R23 DVSS_76 T23 DVSS_86 U23 DVSS_140 AB23 DVSS_96 W6 DVSS_30 G17 DVSS_27 F25 DVSS_109 Y6 DVSS_17 E21 DVSS_25 F21 DVSS_45 L8 DVSS_66 T7 DVSS_7 D11 DVSS_14 E11 DVSS_8 D12 DVSS_18 E22 DVSS_26 F22 DVSS_33 G25 DVSS_136 AB19...

Page 26: ... 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_7 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 NT5CB128M16BP DI IC7...

Page 27: ... R2426 1K R2434 47K 1 24V P2400 FW20020 24S OPT 19 14 9 4 18 13 8 3 17 12 7 2 16 11 6 1 20 15 10 5 21 22 23 24 C2426 100pF 50V PANEL_VCC 3 5V_ST C2443 0 1uF 50V R2437 10K A_DIM R2422 0 POWER_24_GND R2415 56K 1 C2421 4700pF 50V R2442 10K MTK_EPI R2441 1 8K MTK_EPI 12V R2430 10K RL_ON 3 5V_ST C2413 0 1uF 50V R2401 10K C2402 10uF 16V C2441 3300pF 50V OPT R2403 10K R24000 OPT L2404 2uH C2400 10uF 16V ...

Page 28: ...INTP4 6 P75 KR5 INTP9 SCK01 SCL01 7 P74 KR4 INTP8 SI01 SDA01 8 P73 KR3 SO01 9 P72 KR2 SO21 10 P71 KR1 SI21 SDA21 11 P70 KR0 SCK21 SCL21 12 P30 INTP3 RTC1HZ SCK11 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 ...

Page 29: ...D1 15 DDC_CLK D0 _HDMI2_JACK DDC_SDA_3_JACK CK _HDMI4_JACK D1 _HDMI1_SOC D0 _HDMI2_JACK CK _HDMI4_JACK DDC_SCL_2_JACK R3310 1K DDC_SCL_4_JACK DDC_SCL_3_JACK CK _HDMI1_SOC D2 _HDMI2_JACK HDMI_HPD_1_SOC R3315 100 5V_HDMI_1_SOC 5V_NORMAL DDC_SDA_4_JACK 5V_HDMI_1_SOC R3304 1K DDC_SCL_1_SOC D1 _HDMI4_JACK R3323 47K DDC_SDA_4_JACK R3302 100 DDC_SCL_1_SOC D1 _HDMI4_JACK R3306 4 7K HDMI_INTERNAL_EDID DDC_...

Page 30: ... 13 14 14 15 15 16 16 R3646 10K C3615 0 1uF 16V RGB_DDC_SDA SPDIF_OUT R3615 33 C3634 18pF 50V EDID_WP PC_R_IN 5V_NORMAL DSUB_HSYNC DSUB_VSYNC D3616 30V OPT PC_L_IN R3642 2 7K RGB_5V RGB_5V IC3600 M24C02 RMN6T RGB_EDID 3 E2 2 E1 4 VSS 1 E0 5 SDA 6 SCL 7 WC 8 VCC SOC_TX SOC_RX D3620 MMBD6100 A2 C A1 R3647 100 RGB_DEBUG D3623 5 6V OPT D3611 5 6V OPT D3612 5 6V OPT D3600 20V OPT D3601 20V OPT D3622 5 ...

Page 31: ... FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC R3700 10K HP_OUT HP_LOUT 3 3V_NORMAL JK3700 KJA PH 0 0177 EAG61030001 HP_OUT 3 DETECT 4 L 5 GND 1 R HP_DET HP_ROUT VA3700 5 6V OPT VA3700 1 5 6V ESD_MTK_HP_OUT VA3700 2 5 6V ESD_LG1152_HP_OUT 37 JACK_COMMON 2011 11 21 ESD for LG1152 ESD for MTK Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purpo...

Page 32: ...CT 4 M4 5 M5_GND 1 M1 6 M6 AV1_CVBS_IN COMP1_Y R3821 100 RS232 3 3V_NORMAL R3820 100 RS232 3 5V_ST 12V_COMMERCIAL_OUT 12V_COMMERCIAL_OUT 3 5V_ST R3834 10K OPT_RS232 SOC_RX 3 5V_ST SOC_TX P3800 12507WS 04L UART_4PIN_STRAIGHT 1 2 3 4 5 R3810 10K R3806 10K D3803 5 6V OPT D3800 5 6V OPT D3804 20V OPT D3805 20V OPT D3801 5 6V OPT D3802 5 6V OPT D3801 1 5 6V ESD_MTK D3802 1 5 6V ESD_MTK D3800 1 5 6V ESD...

Page 33: ... MMBT3904 NXP COMMERCIAL_IR_EU E B C Q4104 MMBT3904 NXP COMMERCIAL_IR E B C R4101 1K COMMERCIAL_IR R4109 1K COMMERCIAL_IR_EU R4115 3 3K COMMERCIAL_IR R4103 3 3K COMMERCIAL_IR R4107 10K IR_BYPASS P4102 12507WR 10L GP4_IR_10P 1 2 3 4 5 6 7 8 9 10 11 D4106 20V ADUC 20S 02 010L OPT D4105 20V ADUC 20S 02 010L OPT D4101 5 6V AMOTECH CO LTD OPT D4100 5 6V AMOTECH CO LTD OPT D4104 5 6V AMOTECH CO LTD OPT ...

Page 34: ...uF 10V 5V_USB 3 3V_NORMAL USB_OCD3 C4301 22uF 10V R4332 10K POWER_ON OFF2_4 C4331 0 1uF 16V 12V L4307 3 6uH C4341 4 7uF 10V R4342 10K 5 L4306 BLM18PG121SN1D USB_CTL3 C4325 10uF 16V C4342 100pF 50V USB_DCDC_SN1104041 IC4306 1 BD86180MUV DEV_USB_DCDC_BD86180 3 SS 2 COMP 4 RT 1 EN 6 CTL1 5 CTL2 7 FLG2 8 FLG1 9 USB_OUT2 10 GND_1 11 GND_2 12 USB_OUT1 13 USB_IN_1 14 USB_IN_2 15 USB_IN_3 16 SW_1 17 SW_2 ...

Page 35: ...BOL MARK OF THE SCHEMETIC M_RFModule_ISP M_REMOTE_RX M_REMOTE_TX 3 3V_NORMAL L4800 120 ohm M_REMOTE M_RFModule_RESET C4800 0 1uF P4800 12507WR 08L M_REMOTE 1 3 3V 2 GND 3 RX 4 TX 5 RESET 6 DC 7 DD 8 GND 9 AR4800 100 1 16W M_REMOTE 3D_SYNC_RF 3D_SYNC_RF ZigBee_Radio Pulse M_REMOTE OPTION ALL M_REMOTE OPTION 48 MOTION REMOTE 2011 11 21 Only For PDP Copyright ⓒ 2012 LG Electronics Inc All right reser...

Page 36: ...N_C D4 GN_A C5003 0 01uF 50V EPHY_RDP LAN_JACK_POWER D5000 5 5V OPT D5002 5 5V OPT D5003 5 5V OPT D5001 5 5V OPT D5001 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5003 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5002 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5000 2 5 5V ADUC 5S 02 0R5L ESD_LG1152 D5003 1 ADUC 5S 02 0R5L ESD_MTK D5000 1 ADUC 5S 02 0R5L ESD_MTK D5002 1 ADUC 5S 02 0R5L ESD_MTK D5001 1 ADUC 5S 02 0R5L ESD_MTK...

Page 37: ... 0 1uF C5413 16V AUD_LRCH L5401 BLM18PG121SN1D 24V_AMP SPK_R C5431 390pF 50V 24V_AMP D5403 100V 1N4148W OPT C5414 10uF 10V AMP_RESET_N R5408 12 C5433 1uF 25V L5404 NRS6045T100MMGK 10 0uH SPK_L C5435 0 47uF 50V C5428 1uF 25V I2C_SCL1 C5409 10uF 10V OPT SPK_L P5400 WAFER ANGLE 1 2 3 4 AMP_MUTE 0 1uF C5439 50V C5417 22000pF 50V R5400 10K R5410 12 SPK_R 0 1uF C5412 16V 24V C5410 10uF 10V OPT 0 1uF C54...

Page 38: ...HP_MUTE 3 3V_NORMAL R6106 0 OPT R6102 4 7K OPT 3 3V_NORMAL R6107 1K HP_LOUT_MAIN L6100 120 ohm BLM18PG121SN1D R6103 4 7K C6105 10uF 10V IC6100 TPA6132A2 EAN60724701 3 INR 2 INL 4 INR 1 INL 5 OUTR 6 G0 7 G1 8 HPVSS 9 CPN 10 PGND 11 CPP 12 HPVDD 13 EN 14 VDD 15 SGND 16 OUTL C6107 0 1uF 16V R6101 OPT Q6100 MMBT3904 NXP E B C C6100 1uF 10V C6103 1uF 10V C6108 2 2uF 10V C6106 2 2uF 10V C6109 2 2uF 10V ...

Page 39: ...1 D1 22 D2 23 D3 24 D4 25 D5 26 D6 27 D7 28 GND_2 29 GND_3 30 1 23V_S2_DEMOD 31 S2_RESET 38 SHIELD 32 3 3V_S2_DEMOD 33 S2_F22_OUTPUT 34 S2_SCL 35 S2_SDA 36 LNB 37 GND_4 TU6502 TDSQ H051F CHB_V 1 5V SPLITTER 2 RESET 3 TU_SCL 4 TU_SDA 5 M_ 3 3V 6 M_SIF 7 M_ 1 8V 8 M_CVBS 9 M_IF_AGC 10 M_DIF P 11 M_DIF N 12 S_3 3V 13 S_1 8V 14 S_CVBS 15 GND_1 16 SD_ERROR 17 SD_SYNC 18 SD_VALID 19 SD_MCLK 20 SD_SERIAL...

Page 40: ...L EXT_AMP_RESET 12V_COMMERCIAL_OUT SPK_L_OUT_COMMERCIAL SPK_R_OUT_COMMERCIAL L7000 BLM18PG121SN1D JK7000 KJA PH 0 0177 EAG61030001 COMMER_EXT_AMP_JACK 3 DETECT 4 L 5 GND 1 R SPK_R_OUT_COMMERCIAL SPK_L_OUT_COMMERCIAL Q7001 MMBT3904 NXP E B C 12V_EXT_PWR_DET 3 5V_ST C7002 22uF 25V R7005 22K R7004 100K R7006 10K C7003 22uF 25V C7000 470pF 50V C7001 1uF 25V L7001 BLM18PG121SN1D D7000 5 6V D7001 5 6V C...

Page 41: ...C 3 NC 4 NC 5 NC 6 AUO_65_MIRROR 7 LVDS_SEL 8 NC 9 NC 10 L DIM_ENABLE 11 GND 12 RA0N 13 RA0P 14 RA1N 15 RA1P 16 RA2N 17 RA2P 18 GND 19 RACLKN 20 RACLKP 21 GND 22 RA3N 23 RA3P 24 RA4N 25 RA4P 26 GND 27 BIT_SEL 28 RB0N 29 RB0P 30 RB1N 31 RB1P 32 RB2N 33 RB2P 34 GND 35 RBCLKN 36 RBCLKP 37 GND 38 RB3N 39 RB3P 40 RB4N 41 RB4P 42 GND 43 GND 44 GND 45 GND 46 GND 47 NC 48 VLCD 49 VLCD 50 VLCD 51 VLCD 52 G...

Page 42: ...RITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC I2C_SCL1 L DIM0_SCLK R7601 10K L DIM_OUT 3 3V_NORMAL L DIM0_MOSI R7607 4 7K L DIM_OUT R7606 33 L DIM_OUT P7600 12507WR 08L L DIM_OUT 1 2 3 4 5 6 7 8 9 I2C_SDA1 L DIM0_VS R7600 10K OPT AR7600 33 1 16W L DIM_OUT LOCAL DIMMING To LED DRIVER 76 LOCAL DIMMING 2011 12 13 Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and se...

Page 43: ...44 1uF 50V C7749 1uF 50V PMIC_RESET D7703 100V 1N4148W D7705 100V 1N4148W Q7701 MMBT3906 NXP E B C D7704 100V 1N4148W D7706 100V 1N4148W C7728 10uF 10V OPT C7712 1uF 10V C7741 10uF 16V EPI_LOCK6 EPI_LOCK6_SOURCE 3 3V_NORMAL C7732 0 1uF 50V C7727 0 1uF 50V C7754 0 1uF 50V Q7700 MMBT3904 NXP E B C D7700 40V SX34 D7701 40V SX34 Q7702 MMBT3904 NXP E B C Q7703 MMBT3904 NXP E B C R7758 10K R7756 10K R77...

Page 44: ...C_109 N10 NC_110 N11 NC_111 N12 NC_112 N13 NC_113 N14 NC_114 P1 NC_115 P2 NC_117 P8 NC_118 P9 NC_120 P11 NC_121 P12 NC_122 P13 NC_123 P14 DUMMY_1 DU1 DUMMY_2 DU2 DUMMY_3 DU3 DUMMY_4 DU4 DUMMY_5 DU5 DUMMY_6 DU6 DUMMY_7 DU7 DUMMY_8 DU8 DUMMY_9 DU9 DUMMY_10 DU10 DUMMY_11 DU11 DUMMY_12 DU12 DUMMY_13 DU13 DUMMY_14 DU14 DUMMY_15 DU15 DUMMY_16 DU16 IC8100 2 KLM2G1HE3F B001 SAMSUNG_EMMC_2GB DAT0 A3 DAT1 A...

Page 45: ...R THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC 3 5V_ST L8900 BLM18PG121SN1D LOGO_LIGHT P8900 12507WR 03L LOGO_LIGHT 1 2 3 4 Q8900 MMBT3904 NXP LOGO_LIGHT E B C LOGO_LIGHT R8903 1K LOGO_LIGHT 3 5V_ST R8901 10K LOGO_LIGHT R8902 10K OPT C8900 0 1uF 16V LOGO_LIGHT R8900 22 LOGO_LIGHT Place Near Micom Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service pu...

Page 46: ......

Page 47: ... 7 Off when on off while viewing power auto on off 8 8 C Audio error No audio Normal video 9 9 Wrecked audio discontinuation noise 10 10 D Function error No response in remote controller key error recording error memory error 11 11 External device recognition error 12 12 E Noise Circuit noise mechanical noise 13 13 F Exterior error Exterior defect 14 First of all Check whether there is SVC Bulleti...

Page 48: ...eck Link Cable LVDS reconnection condition A10 A11 A10 32 37 42 47 55 A11 32 AUO 12 Adjustment Test pattern ADJ Key A12 13 A Video error_Vertical Horizontal bar residual image light spot LCD TV connection diagram A8 14 Check Link Cable LVDS reconnection condition A10 A11 A10 32 37 42 47 55 A11 32 AUO 15 Adjustment Test pattern ADJ Key A12 16 Appendix Defected Type caused by T Con Inverter Module E...

Page 49: ... 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 Revised date 1 13 LCD TV Error symptom A Video error No video Normal audio A4 A1 A2 A28 A7 A3 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS Cable Speaker Cable IR B D Cable S...

Page 50: ... and replace MAIN B D Y Replace Power Board and repair parts N End A Video error No video No audio A4 Established date Revised date 2 13 LCD TV Error symptom Standard Repair Process Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 51: ...lace Main B D Check Tuner soldering Normal Picture Y N Y Close Normal Picture Y Close Menu Setup Booster By using Digital signal level meter By using Diagnostics menu on OSD Menu Set up Support Signal Test Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N N Normal Picture Y Close N A7 Established date Revised...

Page 52: ...ox Different maker TV etc Y Change satellite setting match with installed ANT N Normal Picture Y Close N A7 Established date Revised date 3 13 LCD TV Error symptom Check satellite setting Check LNB frequency Check satellite Check Satellite connection DiSEqC motor etc Normal setting Contact with signal distributor or broadcaster Cable or Air Close N Check Tuner soldering Replace Main B D Standard R...

Page 53: ...l device and cable Y External device Cable normal RGB HDMI DVI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error A8 N Y End Replace module Request repair for external device cable Color error Check Test pattern A12 A10 A11 Established date Revised date 4 13 LCD TV Error symptom Standard Repair Process Copyright ⓒ 2012 LG Electronics Inc All right...

Page 54: ...al operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main B D Screen normal N Y Check S W Version Y N Check version S W Upgrade Y N Normal screen End Screen normal N Y Check external device connection condition Y N Check and replace Link Cable Normal Y N Screen normal Replace Main B D adjust VCOM Replace module Check color condition ...

Page 55: ...ge of each output of Power B D N Y Normal voltage Replace Main B D N 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 A19 A4 Established date Revised date 6 13 LCD TV Error symptom Stand By Red Operating white Close Standard Repair Process Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 56: ...atus except CPU trouble POWEROFF_CPUABNORMAL Power off by CPU Abnormal B Power error Off when on off while viewing power auto on off Caution Check and fix exterior of Power B D Part Established date Revised date 7 13 LCD TV Error symptom Please refer to the all cases which can be displayed on power off mode Error N Y Check Power Off Mode Fix A C cord Outlet and check each 3 phase out Check A C cor...

Page 57: ... and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A24 A25 Disconnection Established date Revised date 8 13 LCD TV Error symptom Standard Repair Process Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 58: ...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 Esta...

Page 59: ...place Baterry of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A27 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 A4 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A27 Replace Main B D Y A27 Established date Revised date 10 13 LCD TV Error symptom Standard Repair Pr...

Page 60: ...ernal device cable RGB 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 11 13 LCD TV Error symptom Standard Repair Process Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ...eed as shown in 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 12 13 LCD T...

Page 62: ...controller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Adjust VCOM Established date Revised date 13 13 LCD TV Error symptom A28 Standard Repair Process Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ...ER BOARD PIN voltage checking method A19 28 C Audio error_No audio Normal video Checking method in menu when there is no audio A24 29 Voltage and speaker checking method when there is no audio A25 30 C Audio error_Wrecked audio discontinuation Voltage and speaker checking method in case of audio error A25 31 D Function error_ No response in remote controller key error Remote controller operation c...

Page 64: ...White Balance value A Video error_No video Normal audio ALL MODELS A4 Established date Revised date Error symptom Content LCD TV Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 7 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 2010 12 14 Copyright ⓒ 2012 LG Ele...

Page 65: ...N C 21 12V 22 PWM Dim 1 23 GND P_DIM2 Lamp SCANNING Model PWM Dim 2 24 Error out Power Board voltage measuring method A Video error_No video Audio A5 Established date Revised date Error symptom Content LCD TV Check the DC 24V 12V 3 5V Edge LED 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE...

Page 66: ...input signal strength checking method A Video error_Video error video lag stop ALL MODELS A6 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ...tment Press the IN START with the remote controller for adjustment Version ALL MODELS A7 Established date Revised date Content LCD TV 2010 12 14 Error symptom Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ...cting to the external input check the screen condition by signal A8 Established date Revised date Error symptom Content LCD TV ALL MODELS 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ...om power supply finally replace the MAIN BOARD TUNER checking part A Video error_Video error video lag stop ALL MODELS A9 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 70: ...el 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A12 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ...tent LCD TV ST BY condition Red Power ON condition white Front LED control Menu Æ Option Æ Power Indicator Æ Standby light ON 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 72: ...Edge LED 24 Pin Power Board Main Board 공통 SMAW200 H24S YEONHO 1 Power on 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 3 5V 10 3 5V 11 3 5V 12 3 5V 13 GND 14 GND 15 GND 16 GND 17 12V 18 Inverter On off 19 12V 20 Lamp A Dim LED N C 21 12V 22 PWM Dim 1 23 GND P_DIM2 Lamp SCANNING Model PWM Dim 2 24 Error out Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right ...

Page 73: ... C 21 12V 22 PWM Dim 1 23 GND P_DIM2 Lamp SCANNING Model PWM Dim 2 24 Error out Checking method when power is ON B Power error _No power A19 Established date Revised date Error symptom Content LCD TV Check power on pin is high 2010 12 14 Edge LED Edge LED Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LG...

Page 74: ...OWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A22 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 75: ...o On Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A24 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 76: ...4V input voltage supplied from Power Board If there is no input voltage remove and check the connector 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 Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video ALL MODELS A25 Established date Revised date Error sym...

Page 77: ...is normal when the Analog Tester needle moves slowly and defective when it does not move at all Remote controller operation checking method D Function error_ No response in remote controller key error ALL MODELS A27 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for tr...

Page 78: ...ch is no or minimized the Flicker If there is no flicker at default value Press the exit key and finish the VCOM adjustment Push the OK key to store the value Then the message Saving OK is pop Press the exit key to finish V COM adjustment A28 Established date Revised date Error symptom Content LCD TV 2010 12 14 Standard Repair Process Detail Technical Manual Copyright ⓒ 2012 LG Electronics Inc All...

Page 79: ...M M Remote Module Air Analog 2 69ch Digital 2 69ch INPUT Switch ANALOG DEMOD USB2 USB3 HDMI4 LVDS 41P 51P eMMC X 1 4GB USB_WIFI SYSTEM DDR3 X 1600 X 16 2Gb DDR CONTROLER A B SPI LOCAL DIMMING I2C Sub Micom RENESAS IR Remote Control SYSTEM DDR3 X 1600 X 16 2Gb SYSTEM DDR3 X 1600 X 16 2Gb UART EPI 50P 50P X_TAL 27MHz Cable Analog 1 125ch TDSH T151F T101F LVDS LS5700 LM6200 Series EPI Above LM6400 Se...

Page 80: ... VGH_ODD VGH_EVEN VGH_R VGH_F VST R 0옴 CLK1 6_I CLK1 6 VCOM_P N LOOP VGL_FB CTRLN VCC CTRLP VGH_FB VDD SWP SWN Main SoC R 47옴 EO_SOC MCLK_SOC GST_SOC GCLK_SOC GCLK MCLK GST EO TCON6 TCON5 TCON4 TCON3 EPI T con LM6400 LM7600 Series Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 81: ...P TXB1N P TXB2N P Z_OUT Vcore VDD H_VDD Vcore H_VDD VDD VCC18 VCC18 VCOMLFB VCOMRFB EPI_LOCK6 EPI_LOCK6_SOURCE VCOM_DYN PMIC_RESET I2C_SDA2 I2C_SCL2 TCON7 TCON8 OPCTRL11 OPCTRL10 5 Block diagram for Middle models Backend EPI T con LM6400 LM7600 Series Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 82: ...tput LVDS_SEL H JEIDA L or NC VESA LGD BIT_SEL H or NC 10 bit L 8 bit L DIMO_SCLK L DIMO_MOSI I2C_SCL1 I2C_SDA1 L DIMO_VS LDM_CK LDM_VSYNC STB_SCL LDM_D0 STB_SDA 5 Block diagram for Middle models Backend LVDS Tx Local Dimming LS57 LM62 Series Copyright ⓒ 2012 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 83: ...UB_R G B DSUB_H VSYNC CK D0 D1 D2 D3 _HDMI2 CK D0 D1 D2 D3 _HDMI1 DDC_SCL SDA_1 DDC_SCL SDA_2 EPHY_RP N EPHY_TP N SPDIF Optic JK1103 System EEPROM 256Kbit IC104 I2C_SCL SDA NAND FLASH 1Gbit IC102 PCM_A 0 7 DDR3 SDRAM 1Gbit IC1201 IC1202 A MDQL 0 7 A MDQU 0 7 B MDQL 0 7 B MDQU 0 7 RXA0 RXA4 RXACK RXB0 RXB4 RXBCK SPK_R SPK_L AMP_SCL SDA AUD_MASTER_CLK AUD_LRCH AUD_LRCK AUD_SCK NTP 7500L IC501 Main S...

Page 84: ...SDRAM 1Gbit IC1201 IC1202 A MDQL 0 7 A MDQU 0 7 B MDQL 0 7 B MDQU 0 7 RXA0 RXA4 RXACK RXB0 RXB4 RXBCK SPK_R SPK_L AMP_SCL SDA AUD_MASTER_CLK AUD_LRCH AUD_LRCK AUD_SCK NTP 7500L IC501 Main SOC LGE2111A IC101 10P connector P2401 SENSOR_SCL SDA KEY1 2 LED_B IR TU_SCL SDA SIF TDSN B001F FULL NIM FE_TS_DATA 8 CVBS LJ21C LT21C Model LM34 LS35 LS34 CS46 CS56 P705 30P HD LVDS wafer 51P FHD LVDS wafer P703...

Page 85: ..._R DSUB_G DSUB_B PC AUDIO PC_L_IN PC_R_IN AIN2_R_AADC CVBS 1 Phone JACK _Yellow Component 1 Phone JACK _Green LAN EPHY_TDP TDN RDP RDN Air Analog 2 69ch Digital 2 69ch Cable Analog 1 125ch Main SoC USB DM3 DP3 USB3 APPS USB2 USB HUB USB_DM2 DP2 USB1 DVR Ready USB_DM1 DP1 HDMI1 ARC HDMI2 HDMI3 HDMI4 PC HDMI1 D0 D1 D2 CLK SCL SDA HPD HDMI2 D0 D1 D2 CLK SCL SDA HPD HDMI3 D0 D1 D2 CLK SCL SDA HPD HDMI...

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