LG 65LB7100 Service Manual Download Page 67

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4. Tuner Block Diagram (US 1 Tuner)

Tuner

+3.3V_TU

IC101

[+3.3V_TUNER] 1, 11

[+.1.1V_TUNER] 28

3.3K

Ω

+3.3V_TU

M14

AG23[SCL5]
AH24 [SDA5]

[SLC] 4

[SDA] 5

IC2_SCL6

IC2_SDA6

Ω

1.5K

Ω

[M_DIF_P] 6

[M DIF N] 7

AK28 [DMD_ADC_INP]

AL28 [DMD ADC INN]

IF_P
IF_N

[M_DIF_N] 7

AL28 [DMD_ADC_INN]

AM29[IFAGC]

IF_AGC

M_DIF_IFAGC 3

LGE Internal Use Only

Summary of Contents for 65LB7100

Page 1: ...ODEL 60LB6500 60LB6500 UP 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: ...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 13 EXPLODED VIEW 24 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: ...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: ...t of Buyer 2 Test condition Each part is tested as below without special notice 1 Temperature 20 ºC 5 ºC 2 Relative Humidity 65 10 3 Power Voltage Market Input voltage Frequency Remark USA 110 240V 50 60Hz Standard Voltage of each product is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receive...

Page 7: ...70INCH 1920X1080 400CD COLOR 72 16 9 5000 1 120Hz TBD HEESUNG ELEC TRONICS LTD Sharp HC700CUF VHHD1 HC700CUF VHHD2 70LB7100 UC LC600DUF FGF1 FHD 60INCH 1920X1080 450CD COLOR 68 16 9 1600 1 240Hz T Inverter N LED 3D FPR W T con 83 2W 8Bit 10000k 178 178 6ms GTG _HS_PJ Dark Titan LG Display Co Ltd LGD LC600DUF FGF1 60LB7100 UT LC420DUH FGP1 FHD 42 0INCH 1920X1080 300CD COLOR 68 16 9 1600 1 120Hz Inv...

Page 8: ...verter N LED 3D FPR W T con 72 7W 8Bit 10000k 178 178 9ms GTG LVDS 2 Port HS LG Display Co Ltd LGD LC600DUF FGP1 60LB6500 UP LC470DUH FGA2 FHD 47INCH 1920X1080 300CD COLOR 68 16 9 1600 1 120Hz Inverter N LED 2D W T con 50 8W 8Bit 10000k 178 178 6ms GTG _ nOTS Light Silver LG Display Co Ltd LGD LC470DUH FGA2 47LB6300 UQ LC500DUH FGP1 FHD 50INCH 1920X1080 300CD COLOR 68 16 9 1600 1 120Hz Inverter N ...

Page 9: ...0 VESA XGA O 6 1152 864 54 348 60 053 80 002 VESA O 7 1360 768 47 712 60 015 85 50 VESA WXGA X 8 1280 1024 63 981 60 020 108 00 VESA SXGA O 9 1920 1080 67 5 60 148 5 HDTV 1080P O DTV 1 720 480 31 50 60 27 027 SDTV 480P 2 720 480 31 469 59 94 27 00 SDTV 480P 3 1280 720 45 00 60 00 74 25 HDTV 720P 4 1280 720 44 96 59 94 74 176 HDTV 720P 5 1920 1080 33 75 60 00 74 25 HDTV 1080I 6 1920 1080 33 72 59 9...

Page 10: ... 29 97 30 00 74 175 74 25 S S T B S S Full 67 50 30 00 148 5 F P L A 60 00 S S T B 5 5 3D HDMI PC Input No Resolution H freq kHz V freq Hz Pixel clock MHz 3D input proposed mode 1 1024 768 48 363 60 004 65 000 2D to 3D S S T B 2 1360 768 47 712 60 015 85 500 3 1920 1080 67 50 60 00 148 50 2D to 3D S S T B C B R I C I 5 6 HDMI Input 1 3 No Resolution H freq kHz V freq Hz Pixel clock MHz 3D input pr...

Page 11: ...ide Top and Bottom HDTV 1080P 5 7 2 3D Manual Movie No Resolution H freq kHz V freq kHz 3D input proposed mode 1 Under 704 480 2D to 3D 2 Over 704 480i 2D to 3D Side by side Top and Bottom 3 Over 704 480p 50 60 2D to 3D Side by side Top and Bottom Checkerboard Row Interleaving Column Interleaving Frame Sequential 4 Over 704 480p Others 2D to 3D Side by side Top and Bottom Checkerboard Row Interlea...

Page 12: ... MHz Proposed 3D input proposed mode 1 1280 720 45 000 60 74 25 HDTV 720P 2D to 3D Side by Side Top Bottom 2 1920 1080 33 75 60 74 25 HDTV 1080I 2D to 3D Side by Side Top Bottom 5 9 2D to 3D Conversion RF 3D Input DTV No INPUT Freq Resolution 1 Digital TV Analog TV 2D Support freq 2D Support resolution 2 HDMI 2D Support freq 2D Support resolution 3 Component 2D Support freq 2D Support resolution 4...

Page 13: ...ch and or Cross hatch pattern 09ch there can some afterimage in the black level area 3 Adjustment items 3 1 Main PCBA Adjustments 1 ADC adjustment ADC adjustment is OTP Auto ADC 2 EDID download HDMI 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setting In Stop 5 GND and HI POT test 3 3 Appendix 1 Tool...

Page 14: ... realization of Plug and Play 4 4 2 Equipment Since embedded EDID data is used EDID download JIG HDMI cable and D sub cable are not need Adjust remocon 4 4 3 EDID DATA 4 4 3 1 2D_8bit_PCM US _ xvYCC off HDMI EDID 2D_8bit_PCM US _xvYCC off Reference HDMI1 HDMI3 In the data of EDID bellows may be different by S W or Input mode ⓐ Product ID HEX EDID Table DDC Function 0001 0100 Analog 0001 0100 Digit...

Page 15: ... 67 03 0C 00 30 00 B8 2D 4 4 3 3 3D_8bit_PCM US _ xvYCC off HDMI EDID 3D_8bit_PCM US _xvYCC off Reference HDMI1 HDMI4 In the data of EDID bellows may be different by S W or Input mode ⓐ Product ID HEX EDID Table DDC Function 0001 0100 Analog 0001 0100 Digital ⓑ Serial No Controlled on production line ⓒ Month Year Controlled on production line ex Monthly 01 01 Year 2014 18 ⓓ Model Name Hex LGTV Cha...

Page 16: ...Objective How it works 1 Objective To reduce each Panel s W B deviation 2 How it works When R G B gain in the OSD is at 192 it means the panel is at its Full Dynamic Range In order to prevent saturation of Full Dynamic range and data one of R G B is fixed at 192 and the other two is lowered to find the desired value 3 Adj condition normal temperature Surrounding Temperature 25 5 C Warm up time Abo...

Page 17: ...ustment 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10cm of the surface 3 Press ADJ key EZ adjust using adj R C à 9 White Balance then press the cursor to the right KEY When KEY is pressed 206 Gray internal pattern will be displayed 4 Adjust Cool modes i Fix the one of R G B gain to 192 default data and decrease ...

Page 18: ...odule AUO INX Sharp CSOT BOE cool med warm x y x y x y spec 271 270 286 289 313 329 target 278 280 293 299 320 339 5 2 Option selection per country 5 2 1 Overview 1 Tool option selection is only done for models in Non USA North America due to rating 2 Applied model LA42B Chassis applied to CANADA and MEXICO 5 2 2 Country Group selection 1 Press ADJ key on the Adj R C and then select Country Group ...

Page 19: ... 4 Magic Motion remote controller Check 5 4 1 Test equipment RF remote controller for check IR KEY CODE remote controller Check AA battery before test A recommendation is that a tester change battery every lots 5 4 2 Test 1 Make pairing with TV set by pressing Start key Wheel key on RCU 2 Check a cursor on screen by pressing Wheel key of RCU 3 Stop paring with TV set by pressing Back Home key of R...

Page 20: ...es NG in 3D mode without 3D glasses 5 6 3 3D Inner pattern 1 Using RS232 Command Command Set ACK Transmission A I Set ID 72 Cr O K x or N G x 2 It support internal 3D pattern without MASTER equipment Except that one other method is same when use the MASTER equipment 5 7 HDMI ARC Function Inspection 5 7 1 Test equipment Optic Receiver Speaker MSHG 600 SW 1220 HDMI Cable for 1 4 version 5 7 2 Test m...

Page 21: ...xxx on the screen check data increase You should change Eye Q sensor 6 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 picture apeears on TV Set iii Push Camera Down 6 1 Ship out mode check In stop after final inspection press In Sto...

Page 22: ...WER CORD GND and SIGNAL CABLE GND Hi pot Test POWER CORD GND and LIVE NEUTRAL 4 LEAKAGE CURRENT At 0 5mArms 9 USB S W Download optional Service only 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is lower than that of TV set it didn t work Otherwise USB data is automatically detected 3 Show the message Copyin...

Page 23: ... CH12 LED CH14 2 Adj Computer During auto adj RS 232C protocol is needed 3 Adjust Remocon 4 Video Signal Generator MSPG 925F 720p 216 Gray Model 217 Pattern 78 10 1 3 Adjustment 1 Set TV in Adj mode using POWER ON 2 Zero Calibrate the probe of Color Analyzer then place it on the center of LCD module within 10cm of the surface 3 Press ADJ key EZ adjust using adj R C 6 White Balance then press the c...

Page 24: ...hese parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 200 400 410 521 401 500 560 900 530 540 120 121 LV1 A10 A22 AG...

Page 25: ...AIT_N BOOT_MODE TP112 EMMC_CMD R144 33 R155 1 2K KR_PIP_NOT L DIM0_MOSI TDO0 EMMC_RST IC103 1 M24256 BRMN6TP NVRAM_ST 3 E2 2 E1 4 VSS 1 E0 5 SDA 6 SCL 7 WC 8 VCC L DIM0_VS L DIM0_MOSI TP104 PCM_CE2 TCK0 R127 3 3K OPT I2C_SDA2 3 3V_TUNER R174 200 1 3 3V_TUNER R173 200 1 OPM1 X101 24MHz 4 GND_2 1 X TAL_1 2 GND_1 3 X TAL_2 SOC_RX AR100 33 1 16W IC101 LG1311 XIN_MAIN B23 XO_MAIN A23 PORES_N AG21 BOOT_...

Page 26: ...P_DET TPO_VAL CAM_TRIGGER_DET RST_HUB 3 3V_NORMAL FE_DEMOD3_TS_SYNC SW201 JTP 1127WEM 1 2 4 3 TPO_SOP MODEL_OPT_11 MODEL_OPT_12 MODEL_OPT_12 MODEL_OPT_11 R227 10K OPT R229 10K OPT R228 10K OPT R230 10K OPT R231 4 7K IC101 LG1311 TP_DVB_CLK AH30 TP_DVB_SOP AH32 TP_DVB_VAL AH31 TP_DVB_ERR AH33 TP_DVB_DATA7 AM33 TP_DVB_DATA6 AL32 TP_DVB_DATA5 AL33 TP_DVB_DATA4 AK32 TP_DVB_DATA3 AK33 TP_DVB_DATA2 AK31...

Page 27: ...PDIF_OUT_ARC D2 _HDMI4 R318 75 1 1005 SCART_ROUT_SOC HDMI_HPD_4 R355 0 EU AUAD_L_CH3_IN EPHY_RXD1 D1 _HDMI4 R371 0 GOOGLE R366 100 CK _HDMI1 C322 0 047uF R378 47K 1 5V_HDMI_1 AUAD_L_CH2_IN HDMI_HPD_1 DDR3_OPT1 COMP1_Pb R370 0 GOOGLE SMARTCARD_RST SD_EMMC_DATA 2 R352 22K EU I2S_AMP SC_CVBS_IN_SOC C357 1uF 10V D1 _HDMI1 AUD_SCK D0 _HDMI1 R333 33 C313 4 7uF 10V COMP1_Y_IN_SOC SCART_LOUT_SOC C11010 68...

Page 28: ..._DDR_RASN M0_DDR_DQ14 M0_DDR_DQ12 M0_U_CLKN MT41K256M16HA 125 E IC401 1 DDR_512MB_MICRON A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 NC_5 M7 BA0 M2 BA1 N8 BA2 M3 CK J7 CK K7 CKE 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 DQ0 E3 DQ1 F7 DQ2 F2 DQ3 F8 DQ4 H3 DQ5 H8 DQ6 G2 DQ7 H7 DQ8 D7 DQ9 C3 DQ10 C8 DQ1...

Page 29: ...3 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 M1_DDR_A9 M1_1_DDR_VREFDQ M1_DDR_DQ20 M1_DDR_A15 M1_DDR_ODT M1_DDR_DQ13 M1_DDR_DQ5 R503 100 C525 1uF M1_DDR_CASN M1_DDR_DQ4 1 5V_DDR M1_DDR_DQ26 M1_DDR_DQ18 1 5V_DDR C540 1uF M1_DDR_DM0 1 5V_DDR M1_DDR_DQS_N0 M1_DDR...

Page 30: ...2 W12 AVDD11_C4TX_3 Y12 AVDD11_C4TX_4 AA12 DVDD11_XTAL G18 DVDD11_DR3PLL H18 DVDD11_CVBSPLL AF23 AVDD11_DMD_1 AF24 AVDD11_DMD_2 AF25 DVDD18_EMMC_1 L26 DVDD18_EMMC_2 M26 IC101 LG1311 GND_1 B22 GND_2 B24 GND_3 C22 GND_4 C23 GND_5 C24 GND_6 D4 GND_7 D5 GND_8 D6 GND_9 D20 GND_10 D21 GND_11 E6 GND_12 E20 GND_13 E21 GND_14 F6 GND_15 F7 GND_16 F8 GND_17 F18 GND_18 F19 GND_19 F20 GND_20 F21 GND_21 G7 GND_...

Page 31: ...LM18PG121SN1D L2302 BLM18PG121SN1D C2344 2700pF 50V 1 5V_DCDC_RHOM IC2306 AZ1117EH ADJTRG1 ADJ GND OUT IN C2356 0 1uF 50V P_DET_BOTH_12_3 5V L2303 UBW2012 121F C2328 10uF 16V C2303 0 1uF 16V PWM_DIM R2301 10K C2311 10uF 35V 3 3V_NORMAL R2326 1 1 2K 1 P_DET_BOTH_12_3 5V R2322 4 3K 1 16W 1 R2327 8 2K P_DET_BOTH_24_3 5V R2311 10K 5V_USB_2 R2350 100 C2300 22uF 10V R2336 100K P_DET_BOTH_12_3 5V R2351 4...

Page 32: ... 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 TXD1 36 P140 PCLBUZ0 INTP6 37 P120 ANI19 38 P41 TI07 TO07 39 P40 TOOL0 40 RESET 41 P124 XT2 EXCLKS 42 P123 XT1 43 P137 INTP0 44 P122 X2 EXCLK 45 P121 X1 46 REGC 47 VSS 48 VDD MODEL1_O...

Page 33: ...1 R3247 10K R3254 10K CK _HDMI1 CK _HDMI2 VA3216 ESD_HDMI 5V_NORMAL 5V_NORMAL VA3207 ESD_HDMI MHL_DET VA3212 ESD_HDMI D2 _HDMI2 DDC_SCL_2 D0 _HDMI4 CK _HDMI4 VA3210 ESD_HDMI CEC_REMOTE R3265 100K VA3217 5 6V D3216 MMBD6100 A2 C A1 D2 _HDMI1 JK3202 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 ...

Page 34: ... 5E RD2 O SPRING 6E RD2 E LUG R327 100 COMP2_Y_IN_SOC_SOY 3 5V_ST JK3401 JST1223 001 1 GND 2 VCC 3 VINPUT 4 FIX_POLE R3826 150 HP_OUT 3 3V_NORMAL R3409 100 HP_OUT C328 1000pF SPDIF_OUT DOUT1 VA3806 5 5V TP3400 C325 0 047uF JK3403 PEJ034 01 6B T_TERMINAL2 7B B_TERMINAL2 5 T_SPRING 4 R_SPRING 3 E_SPRING R3801 1K IRB_3 3V R3824 0 IR_Bla SOC_TX VA3800 5 6V SOC_RX HP_LOUT COMP1_Pb VA3805 5 5V R3802 1K ...

Page 35: ... 5V_WOL 3 5V_ST R4001 100 IR C4007 100pF 50V 3 5V_ST R4008 10K 5 R4016 47 1 10W 5 IR_PROTO C4016 5pF 50V OPT R4011 100 WIFI_DM C4005 0 1uF C4001 0 1uF OPT EYE_SCL R4009 10K 5 C4009 0 1uF 16V OPT C4003 0 1uF EYE_SDA BT_RESET R4002 100 C4015 5pF 50V OPT D4000 RCLAMP0502BA OPT WIFI_DP 3 5V_ST C4002 0 1uF OPT KEY2 P4000 SMAW200 H18S5 14 KEY2 9 SDA 4 USB_DM 18 GND 13 GND 8 GND 3 BT_RESET 17 LED_R 12 KE...

Page 36: ...B_2 USB_DM2 D4301 5V USB_ESD_SD05 USB_DM3 D4303 5V USB_ESD_SD05 5V_USB_3 USB_DP3 USB_DP2 JK4300 3AU04S 305 ZC LG 1 2 3 4 5 C4323 22uF 10V C4311 22uF 10V C4322 10uF 10V C4310 10uF 10V D4302 RCLAMP0582B USB_ESD_0582B D4300 RCLAMP0582B USB_ESD_0582B D4302 1 RCLAMP0502BA USB_ESD_0502BA D4300 1 RCLAMP0502BA USB_ESD_0502BA MID_LG1311 1 2013 04 03 USB 2 3 PAGE 13 MAX 1 5A USB3 USB2 MAX 1 5A EAX6536390 Us...

Page 37: ..._DP1 C4500 0 1uF 16V 5V_NORMAL USB_CTL1 USB_OCD1 JK4500 3AU04S 305 ZC LG 1 2 3 4 5 D4501 5V USB_ESD_SD05 C4502 22uF 10V OPT R4502 14K 1 IC4500 BD2242G 3 EN 2 GND 4 OC 1 VIN 6 VOUT 5 ILIM R4501 4 7K C4501 10uF 10V D4500 RCLAMP0582B USB_ESD_0582B D4500 1 RCLAMP0502BA USB_ESD_0502BA 1 MID_LG1311 USB 1 DVR 2013 04 03 PAGE 14 USB1 2 0 MAX 1 5A OCP USB1 value change 10K 2 63V 4 7K 2 97V EAX6536390 Use R...

Page 38: ...TS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC C5000 0 1uF 16V D5002 5 5V LAN_ESD D5001 5 5V LAN_ESD C5001 0 01uF 50V JK5000 RJ45VT 01SN002 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 D5000 5 5V LAN_ESD EPHY_RDN EPHY_RDP EPHY_TDN EPHY_TDP D5003 5 5V LAN_ESD PAGE 16 Ethernet Block Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE I...

Page 39: ...25 LED1 PHYAD 1 26 CRS CRS_DV 27 COL 28 RXER FXEN 29 DVDD10OUT 30 AVDD33_2 31 CKXTAL1 32 CKXTAL2 5 MDI 1 8 RXDV 6 MDI 1 4 MDI 0 2 AVDD10OUT 33 EP R5204 2 49K 1 C5200 4 7uF 10V ET_COL SNI R5200 3 3K R5202 1M OPT LAN_JACK_POWER C5208 0 1uF 16V C5211 0 1uF 16V ET_COL SNI EPHY_TDP 3 5V_WOL 3 5V_WOL EPHY_ACTIVITY R5218 0 EPHY_RXD0 EPHY_RDP 3 5V_WOL EPHY_RXD1 EPHY_CRS_DV R5217 3 3K EPHY_TXD1 EPHY_MDC C5...

Page 40: ...600 UBW2012 121F AUD_LRCK R5605 3 3 1 10W C5615 1uF 10V C5600 1000pF 50V AMP_MUTE_MICOM SPK_R AUD_MASTER_CLK C5610 1uF 10V 3 3V_NORMAL C5614 390pF 50V 0 1uF C5620 50V C5609 22000pF 50V R5606 3 3 1 10W R5600 10K AMP_MUTE_MICOM R5602 100 AMP_MUTE_MICOM L5605 NRS6045T100MMGK 10 0uH L5604 NRS6045T100MMGK 10 0uH I2C_SDA1 I2S_AMP C5602 1uF 10V C5604 22000pF 50V R5608 4 7K AUD_LRCH L5602 NRS6045T100MMGK ...

Page 41: ...UT 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 R6106 43K 1 HP_OUT R6101 10K HP_OUT C6102 1uF 10V HP_OUT R6103 43K 1 HP_OUT C6104 18pF HP_OUT C6101 1uF 10V HP_OUT R6105 4 7K HP_OUT 3 3V_NORMAL R6102 43K 1 HP_OUT C6109 18pF HP_OUT C6105 1uF 10V HP_OUT C6103 1uF 10V HP_OUT SIDE_HP_MUTE C6108 10pF 50V HP_OUT R6100 10K HP_OUT C6107 0 1uF 16V HP_OUT 3 3V...

Page 42: ...9 25 S_RESET_DEMOD 26 B3 3 3V 27 SCL_DEMOD 28 B4 1 1V 29 NC_10 30 SDA_DEMOD 47 SHIELD B1 B1 A1 A1 TDJH G101D TU6401 1 TU_H_AJ 47 SHIELD 6 IF P 7 IF N 8 NC_2 9 NC_3 1 B1 3 3V 2 NC_1 3 IF_AGC 4 SCL 5 SDA A1 A1 B1 B1 TU6402 1 TDJM B101F TU_M_BR 1 B1 3 3V 2 RF_SW_CTL 3 AIF_AGC 4 SCL_RF 5 SDA_RF 6 AIF P 7 AIF N 8 NC_1 9 NC_2 10 NC_3 11 NC_4 12 ERROR 13 GND_1 14 MCLK 15 SYNC 16 VAILD 17 D0 18 D1 19 D2 2...

Page 43: ...C6501 0 1uF 3 3V_LNA_TU TU_RESET2 FE_DEMOD2_TS_DATA 3 3V_TU TU_RESET2_TU R6504 10 TU_ALL_IntDemod I2C_SCL4_TU TU_SIF_TU TUNER_SIF FE_DEMOD1_TS_VAL FE_DEMOD1_TS_DATA 3 TU_RESET1_TU FE_DEMOD2_TS_ERROR R6501 100 TU_M W 3 3V_NORMAL C6518 10uF 10V TU_M W R6500 10K TU_M W FE_DEMOD1_TS_DATA 5 IF_AGC_TU TU_CVBS RF_SWITCH_CTL R6507 1K TU_K M W_TW BR CO CN R6519 1 16K TU_M W_1 1V FE_DEMOD1_TS_ERROR L6503 BL...

Page 44: ...XB3N TX1N TXD1N TX16N TXB2N TX3N TXB1N TX4N R7215 10K LVDS_SEL_LOW 2D 3D_CTL TXC2N TX21N I2C_SDA1 TXC3N TX19N TXA3P TX7P TXD4P TX12P TXA0P TX11P TXA2P TX9P TXC0N TX23N 2D 3D_CTL R7221 33 AUO_2D 3D_CTRL OPC_EN TXA4N TX6N TXA4P TX6P TXC0P TX23P TXD0N TX17N TXD0P TX17P TXB2P TX3P TXB1P TX4P I2C_SCL1 TXC4N TX18N TXB0P TX5P TXB3P TX1P R7220 33 AUO_L D_EN TXC2P TX21P R7218 33 LGD_T Con_Scanning TXC1P TX...

Page 45: ... BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC L DIM0_VS R7401 10K L DIM_OUT_8P I2C_SDA2 L DIM0_MOSI L DIM0_SCLK I2C_SCL2 P7400 12507WR 08L L DIM_OUT_8P 1 2 3 4 5 6 7 8 9 AR7400 33 1 16W L DIM_OUT_8P LOCAL DIMMING 2012 09 14 BSD NC4_H074 HD To LED DRIVER LOCAL DIMMING PAGE 28 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE...

Page 46: ...inch 1 1V_VDD GMA5 R7774 1K EPI_LOCK8 6_SOURCE GIP_RST GMA15 I2C_SDA2 GST_SOC PVCOM R7732 0 EPI_V14 VCOM_TOP GMA4_1 R7726 0 EPI_V14 SS C7724 1uF 25V D7705 100V 1N4148W R7748 1K GMA1 Z_OUT COMP VGL VST TCOMP GMA14 R7750 20K 1 10W GMA10 CTRLP VGH_EVEN C7719 15pF 50V H_VDD 8V VCOM_R_FB RE VL GMA12 C7703 0 01uF 50V EPI_LOCK8 6 GMA4 C7720 15pF 50V R7700 2K 1 16W VDD R7755 33 VCOM_BOT EPI_LOCK4 3 CLK4 C...

Page 47: ... NC_70 K13 NC_71 K14 NC_72 L1 NC_73 L2 NC_74 L3 NC_75 L12 NC_76 L13 NC_77 L14 NC_78 M1 NC_79 M2 NC_80 M3 NC_81 M7 NC_82 M8 NC_83 M9 NC_84 M10 NC_85 M11 NC_86 M12 NC_87 M13 NC_88 M14 NC_89 N1 NC_90 N3 NC_91 N6 NC_92 N7 NC_93 N8 NC_94 N9 NC_95 N10 NC_96 N11 NC_97 N12 NC_98 N13 NC_99 N14 NC_100 P1 NC_101 P2 NC_102 P8 NC_103 P9 NC_104 P11 NC_105 P12 NC_106 P13 NC_107 P14 IC8100 3 THGBMAG7A2JBAIR EMMC4...

Page 48: ...20 IR_Bla R11030 1M OPT IR_B_RESET R11008 33 IR_Bla 3 3V_IR_Bla IRB_SPI_CK TCK1 10uF 10V C11004 IR_Bla Q11001 SBT2222A_AUK IR_Bla E B C IRB_DATA C11008 10uF IR_Bla IRB_3 3V IC11002 MC96FR3128R IR_Bla 3 XOUT 2 XIN 4 P20 RESETB 1 VSS 6 P11 KS9 MISO1 5 P10 KS8 MOSI1 7 P12 KS10 INT0 8 P13 KS11 INT1 9 P14 KS12 SS1 INT2 10 P15 KS13 XCK1 INT3 11 P16 KS14 MOSI0 12 P17 KS15 MISO0 13 P30 SS0 EC2 EXTREF 14 P...

Page 49: ...C 20S 02 010L OPT C6808 0 1uF RS232C C6809 0 1uF RS232C C6810 0 1uF RS232C DOUT1 SOC_RX R6821 100 RS232C 3 5V_ST C6813 0 1uF RS232C 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 R6820 100 RS232C SOC_TX RIN1 ZD6802 ADUC 20S 02 010L 20V OPT C6811 0 1uF RS232C PAGE 32 RS 232C Control INTERFACE Copyright ...

Page 50: ......

Page 51: ...e Applicable Model Mid end Applicable Model Mid end 55LB7200 70 65 60LB7100 60 55 50 47 42LB6500 65 60 55 47 42LB6300 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 52: ...s 5 Block Diagrams IIC Map 6 Structure of TV set and connection of sub assy s 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s How to use tool Download 8 Repair guide 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 53: ...Main PCBs 5 Block Diagrams IIC Map 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s Instruction of new sub assy s How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 55: ...ion 3 New features 4 Main PCBs 5 Block Diagrams IIC Map S f f 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s y How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 56: ...tandard of 2014 Model Name Description of Tool Options Model Name Description of Tool Options Tool option info 6 83 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ...ion 3 New features 4 Main PCBs 5 Block Diagrams IIC Map S f f 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s y How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ...ion 3 New features 4 Main PCBs 5 Block Diagrams IIC Map S f f 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s y How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 60: ...le 4 1 Main processor DDR Memory eMMC Memory 2 2 3 Micom for Key IR sensing Audio AMP 12W 12W WiFi BT Magic Remocon receiver Tuner 2 3 4 LVDS or EPI Wafer 1 F t S k 5 PSU 1 Key IR Front Spk 2 WIFI BT Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ...le 4 1 Main processor DDR Memory eMMC Memory 2 2 3 Micom for Key IR sensing Audio AMP 12W 12W WiFi BT Magic Remocon receiver Tuner 2 3 4 LVDS or EPI Wafer 1 F t S k 5 PSU 1 Key IR Front Spk 2 WIFI BT Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 62: ... 4 To module 1 Main processor DDR Memory eMMC Memory 2 2 3 Micom for Key IR sensing Audio AMP 12W 12W WiFi BT Magic Remocon receiver Tuner 2 3 4 LVDS or EPI Wafer 1 F t S k 5 PSU 1 Key IR Front Spk 2 WIFI BT Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ...eatures 4 Main PCBs 5 Block Diagrams IIC Map 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s Instruction of new sub assy s How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 64: ...P 1 5A S I D E A R H Audio AMP HDMI1 HDMI2 HDMI3 HDMI MUX 41P 51P 50P 50P I2S Out I2C 1 EPI I2C 2 LVDS ARC S I D E PM IC OCP 1A MHL I2C 1 H P Line Out AV COMP R E A AMP CVBS YPbPr LOCAL DIMMING BLUTOOTH WIFI I2C 2 USB_WIFI BT IR Bla Ready OPTIC LAN EPI LVDS Diagram A R SPDIF OUT ETHERNET IR KEY EYE WIFI SUB ASSY IR LAN PHY X_TAL 25MHz I2C Sub Micom RENESAS R5F1000G X TAL I2C 3 KEY X_TAL 32 768KHz ...

Page 65: ...ORMAL 3 3KΩ 3 3KΩ 3 3V_NORMAL 33Ω IC7700 PMIC I2C_SDA1 I2C_SCL1 P7400 Local dimming 33Ω IC103 NVRAM I2C_SDA4 I2C_SCL4 33Ω 3 3V_NORMAL 3 3KΩ 3 3KΩ 3 3V_TUNER 33Ω I2C_SDA2 I2C_SCL2 I2C_SDA5 I2C_SCL5 TUNER Demod 33Ω 100Ω 3 5V_ST 3 3KΩ IC3000 Renesas MICOM EYE_I2C_SDA EYE_I2C_SCL IR KEY EYE Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use O...

Page 67: ...3 3K Ω 3 3V_TU M14 AG23 SCL5 AH24 SDA5 SLC 4 SDA 5 IC2_SCL6 IC2_SDA6 33Ω 1 5K Ω M_DIF_P 6 M DIF N 7 AK28 DMD_ADC_INP AL28 DMD ADC INN IF_P IF_N M_DIF_N 7 AL28 DMD_ADC_INN AM29 IFAGC IF_AGC M_DIF_IFAGC 3 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ...H3_IN IC101 M14 SCART EU Only SC_CVBS_IN CVBS_IN2 SC_CVBS_IN_SOC SC_ID FB SC_R G B SC_CVBS_IN_SOY SC_ID_SOC SC_FB_SOC SC1_SID SC1_FB PB1_IN Y1_IN SOY1_IN PR1_IN COMP1_PB_IN_SOC COMP1_Y_IN_SOC COMP1_Y_IN_SOC_SOY COMP1_PR_IN_SOC JK4600 SC_L R_IN AUDA_L_CH2_IN AUDA_R_CH2_IN AUAD_L_CH2_IN AUAD_R_CH2_IN Tuner TU_CVBS TUNER_SIF IF_P N CVBS_IN1 DMD_ADC_INP DMD_ADC_INN TU_CVBS_SOC TUNER_SIF ADC_I_INP ADC_...

Page 69: ...D_LRCK AUD_SCK DAC_LRCK SDA0 I2C_SDA1 I2C SCL1 AUDA_L_CH2_IN AUDA_R_CH2_IN DVB only AUD_MASTER_CLK AUDCLK_OUT LPF SPEAKER_L SPEAKER R JK4600 IC101 M14 SCL0 I2C_SCL1 AMP_MUTE GPIO21 AMP_RESET_N SPEAKER_R WOOFER Tuner HP L ROUT MAIN M14 TUNER_SIF IC3000 MICOM IC6100 SIDE_HP_MUTE HP L ROUT AMP AAD_ADC SIF SPDIF_OUT IEC9580UT HP_L ROUT_MAIN HEAD PHONE LPF AUDA_OUTL AUDA OUTR IC6100 TPA6138A2PWR HP AMP...

Page 70: ...DDC_SDA_2 TMDS Link 8bits HDMI_HPD TMDS Link 8bits DDC_SCL_4 DDC_SDA_4 TMDS Link or MHL Link HDMI HPD HDMI3 HDMI3 with MHL with MHL Q3001 5V_HDMI_4 OCP 5V_NORMAL HDMI_HPD RENESAS MICOM HDMI_CEC X tal 32 768kHz WOL_CTL MHL_DET Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ... CH1 2 3 4 GM 8 6 L MA1 GMA3 GAM9 G 4 6 6 2CH LEFT VCOM 1 2 Top Bottom VCOMLFB VGH_ODD EVEN VST GIP_RST CLK1 CLK6 GMA4 GMA5 GAM7 GMA12 GMA14 GMA15 EPI_ GMA10 GMA16 GM VGH_ODD EVEN VST GIP_RST 4 6 CLK1 CLK6 6 GMA4 GMA5 GAM7 GMA12 GMA14 GMA15 2CH OP AMP RIG VCOMRFB _LOCK4 EPI CH5 6 7 8 MA18 EPI_LOCK8 EPI_LOCK8 8 GHT Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service...

Page 72: ...B3_DM1 OCP USB_CTL2 USB_OCD2 USB_DP3 5V_USB_3 USB OCD3 USB3 USB_DM3 IC 4306 EB_CS3 EB_CS2 USB2_1_DP0 USB2_1_DM0 WIFI BT_DM USB2 0 DP0 USB_CTL3 USB_OCD3 EB_CS1 EB_CS0 WIFI BT_DP EYY_SCL EYE_SDA USB2_0_DP0 USB2_0_DM0 WIFI BT IC101 M14 _ IR KEY EYE Micom LED IR KEY1 KEY2 M14 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 73: ...eatures 4 Main PCBs 5 Block Diagrams IIC Map 6 Structure of TV set and connection of sub assy s 7 New sub assy s Instruction of new sub assy s Instruction of new sub assy s How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 74: ...bles 1 2 1 1 2 Main LPB 24Pin cable Main Module LVDS Cable 2 4 6 5 3 4 5 LED driver PSU 10Pin IR key Cable 4 6 8Pi WIFI BT A C bl 4 5 6 5 SPK Cable 3 8Pin WIFI BT Assy Cable 6 4 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 75: ... Cables 1 2 1 1 2 Main LPB 24Pin cable Main Module LVDS Cable 2 4 6 5 6 3 4 5 LED driver PSU 10Pin IR key Cable 8Pi WIFI BT A C bl 3 6 4 5 SPK Cable 8Pin WIFI BT Assy Cable 6 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 76: ...Cables 1 2 1 1 2 Main LPB 24Pin cable Main Module LVDS Cable 2 4 6 5 6 3 4 5 LED driver PSU 10Pin IR key Cable 8Pi WIFI BT A C bl 3 6 4 6 5 SPK Cable 8Pin WIFI BT Assy Cable 6 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 77: ... Cables 1 2 1 1 2 Main LPB 24Pin cable Main Module LVDS Cable 2 4 5 6 3 4 5 LED driver PSU 10Pin IR key Cable 8Pi WIFI BT A C bl 3 6 4 6 5 SPK Cable 8Pin WIFI BT Assy Cable 6 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 78: ...3 Cables 1 2 1 1 2 Main LPB 24Pin cable Main Module LVDS Cable 2 4 6 5 6 3 4 5 LED driver PSU 10Pin IR key Cable 8Pi WIFI BT A C bl 3 6 4 6 5 SPK Cable 8Pin WIFI BT Assy Cable 6 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 79: ...ures 4 Main PCBs 5 Block Diagrams IIC Map S f f 6 Structure of TV set and connection of sub ass ys 7 New sub assy s Instruction of new sub assy s Instruction of new sub assy s How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 80: ...4Y WIFI BT built in assy Magic Remote control Table of Contents 1 System 2 Block diagram 3 Paring method Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 81: ...W version BD_ADDR to the receiver The receiver sends the pairing success packet to TV directly F W version and BD ADDR packets are just saved on the receiver e s o a d _ pac e s a e jus sa ed o e ece e The receiver sends F W version or BD_ADDR packet to TV when it is required Motion Data Transmission Period 7 5msec Motion Data gyro accelerometer gy Voice Data Transmission Period 10msec Voice sampl...

Page 82: ...th 4 0 1Mbit SPI X tal 37 4 MHz 1Mbit Serial Flash 37 4 MHz USB 2 0 Connector WiFi Bluetooth C b M d l Combo Module Bluetooth Remote control Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 83: ...hould blink LED for some time and TV send pairing success packet back to TV When remote try to unpairing it doesn t care about state of receiver stand alone When remote try to unpairing it Press HOME button and BACK button at When remote try to unpairing it doesn t care about state of receiver stand alone After unpairing all pairing i f ti h ld b d RF Unpairing Press HOME button and BACK button at...

Page 84: ...in 1 25mm USB DP DN 3 3V 1 2V VCC BCM43232 USB DP DN Switch RTC6603 Antenna 2 4G 5G RX TX RX TX Crystal 37 4MHz Antenna 2 4G 5G RX TX Switch RTC6608O BT TX TX BT TX Antenna 2 4G TX RFLPF1608 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 86: ...ion 3 New features 4 Main PCBs 5 Block Diagrams IIC Map S f f 6 Structure of TV set and connection of sub ass ys 7 New sub ass ys Instruction of new sub ass ys y How to use tool Download 8 Repair guide Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 87: ...en on off while viewing power auto 8 7 g 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 Fi t f ll Ch k h th th i SVC B ll ti i GCSC S t f ...

Page 88: ...ing Part A9 11 Check Link Cable LVDS reconnection condition 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 residual image light spot 15 Adjustment Test pattern ADJ Key A12 16 Exchange T Con Board 1 A 1 5 17 Exchange T Con Board 2 A 2 5 Appendix Defected Type cause...

Page 89: ...k Power Board 12v 3 5v etc Normal voltage Y N Replace T con Board or module And Adjust VCOM R i P B d Ch k P B d 24 t t A28 Move to No video No audio Repair Power Board or parts Check Power Board 24v output Normal voltage Y Replace Inverter or module o tage N Repair Power Board or parts End Precaution A7 Always check record S W Version and White Balance value before replacing the Main Board Replac...

Page 90: ... 2013 11 30 Normal voltage Check various voltages of Power Board 3 5V 12V 20V or 24V No Video No audio Check and replace MAIN B D Y A4 No audio MAIN B D Replace Power Board and repair t N End parts Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 91: ...em or not By connecting RF Cable at other equipment DVD Player Set Top Box Different maker TV etc Menu Setup Booster A7 N Check RF Cable Connection 1 Reconnection 2 Install Booster Check S W Version Booster menu On Off Check Off On Check SVC Bulletin Y Normal Picture Y Close p Normal Picture Y N N A7 S W Upgrade Replace Check Tuner soldering Normal Picture N Contact with signal distributor or broa...

Page 92: ... W V i SVC B ll ti Set Top Box Different maker TV etc Y A7 Check satellite setting Check LNB frequency Check satellite Normal tti Check T ld i Replace M i B D Signal S W Version S W Upgrade Bulletin Y N Check satellite Check Satellite connection DiSEqC motor etc setting N Tuner soldering Main B D Normal Picture N Y Change satellite setting match with installed ANT N Contact with signal distributor...

Page 93: ... Replace module Color error N condition N Check error color input mode HDMI DVI N End Y External device Cable normal External Input Component error Check external device and cable Replace Main B D N Check Test pattern A12 N Request repair for external device cable Y External device Cable normal RGB HDMI DVI error Check external device and cable Replace Main B D Copyright ⓒ 2014 LG Electronics Inc ...

Page 94: ...For other panel External device screen error Color error External Check screen condition by input External Input Check S W Version N Check Input error Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern N Y Replace Main B D Screen normal Component RGB HDMI DVI Component error Check S W Version Y N Check version S W U...

Page 95: ...emote control Y operation On High Check Power cord was inserted properly Power LED Power B D Replace Main B D A4 Stand By Red Operating white Measure voltage of each output of Power B D N Y Normal A4 N Y Normal voltage Replace Main B D Y Check ST BY 3 5V Replace Power B D Y Normal voltage Y A18 Close Replace Power B D N Replace Power B D B D Copyright ⓒ 2014 LG Electronics Inc All right reserved O...

Page 96: ...ower off by REMOTE CONTROL POWEROFF_OFFTIMER Power off by OFF TIMER POWEROFF_SLEEPTIMER Power off by SLEEP TIMER POWEROFF_INSTOP Power off by INSTOP KEY Please refer to the all cases which can be displayed on power off mode Normal 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...

Page 97: ...k user menu Speaker off Off N Y Check audio B 24V of Power Board Normal voltage Y N A24 A25 Cancel OFF Replace Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End Disconnection Replace Speaker Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 98: ...gnal Signal normal Y Check audio B Voltage 24V Replace Main B D N Noise only for D TV Wrecked audio Discontinuation Noise only Replace Power B D N voltage signal Replace Main B D N o se o y for Analog Wrecked audio Discontinuation Noise only When RF signal is not received Request repair to external cable ANT provider Replace Main B D End Noise only for External Input Connect and check other extern...

Page 99: ...ating Check Replace Cable connection Connector solder Normal operating Check B 3 5V On Main B D Normal Voltage Close Check 3 5v on Power B D A4 Check IR Output signal Normal Signal N Repair Replace IR B D N Normal operating Close If R C operate Explain the customer cause is interference When turn off light in room Baterry of R C Replace Power B D or Replace Main B D Power B D don t have problem IR...

Page 100: ...Technical information Check input signal Signal input Y External Input and Component Recognition error Replace Main B D S W Version Y g N Check and fix external device cable RGB HDMI DVI Optical Recognition error Replace Main B D Fix in accordance ith t h i l with technical information Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use On...

Page 101: ...de the S W or provide the description OR If there is a Tak Tak noise from the cabinet refer to the KMS fix information and then proceed Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage as shown in the solution manual For models without any fix information provide the description OR agree apply the process by st...

Page 102: ...ess 2013 11 30 Replace module Zoom part with exterior damage Module damage Adjust VCOM Cabinet damage Replace cabinet A28 Replace remote controller Remote controller damage Stand dent Replace stand Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 103: ...f when on off while viewing POWER BOARD PIN voltage checking method A18 viewing 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 there is no audio 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 ...

Page 104: ...Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 9 3 Aft di th R G B GAIN C t l f C l T C l M di W 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 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only...

Page 105: ... 5V Direct LED Check the DC 24V 12V 3 5V 24 Pin Power Board Main Board Common SMAW200 H24S5 1 Power on 2 INV_ON 3 3 5V 4 PDIM 1 5 3 5V 6 3 5V 7 GND 8 PDIM 2 7 GND 8 PDIM 2 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND 19 GND 20 GND 21 GND 22 L DIM0_VS 23 L DIM0_MOSI 24 L DIM0_SCLK Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes L...

Page 106: ...deo lag stop A6 Established date Revised date Error symptom Content LCD TV 2013 11 30 ALL MODELS date MENU Æ Channel Æ Manual Æ select channel When the signal is strong use the attenuator 10dB 15dB 20dB etc Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 107: ... date Revised date Error symptom Content LCD TV 2013 11 30 1 Checking method for remote controller for adjustment ALL MODELS date Version Press the IN START with the remote ess t e S t t e e ote controller for adjustment Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 108: ... residual image light spot A8 Established date Revised date Error symptom Content LCD TV 2013 11 30 g date ALL MODELS As the part connecting to the external input check the screen condition by signal Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 109: ...ethod 1 Check the signal strength or check whether the screen is normal when the external device is connected 1 Check the signal strength or check whether the screen is normal when the external device is connected 2 After measuring each voltage from power supply finally replace the MAIN BOARD Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal...

Page 110: ...rror symptom Content LCD TV 2013 11 30 date You can view 6 types of 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 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 111: ...k S ld d f t CNT B k Abnormal Power Section T Con Defect CNT Broken T Con Defect CNT Broken T Con 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 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 112: ...rt Crack Abnormal Power Section Solder defect Short Crack Fuse Open Abnormal power section Abnormal Display Solder defect Short Crack p p Noise GRADATION GRADATION Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 113: ...e PSU LED driver A 3 5 No Light Dim Light Dim Light Dim Light Dim Light Dim Light No picture Sound Ok Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 114: ...e Press damage Panel Mura Light leakage Crosstalk Crosstalk Press damage Un repairable Cases In this case please exchange the module Press damage Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 115: ...ect Gate TAB IC Defect Horizontal Block Gate TAB IC Defect Horizontal line Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Un repairable Cases Horizontal Block In this case please exchange the module Gate TAB IC Defect Horizontal Block Gate TAB IC Defect Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 116: ... LED B Power error _No power A17 Established date Revised date Error symptom Content LCD TV 2013 11 30 p y date ST BY condition On Power ON condition Off Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 117: ...thod when power is ON Check the DC 24V 12V 3 5V 24 Pin Power Board Main Board Common SMAW200 H24S5 Direct LED SMAW200 H24S5 1 Power on 2 INV_ON 3 3 5V 4 PDIM 1 5 3 5V 6 3 5V 7 GND 8 PDIM 2 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND 19 GND 20 GND 19 GND 20 GND 21 GND 22 L DIM0_VS 23 L DIM0_MOSI 24 L DIM0_SCLK Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for ...

Page 118: ...blished date Revised date Error symptom Content LCD TV 2013 11 30 g ALL MODELS date Entry method 1 Press the IN START button of the remote controller for adjustment for adjustment 2 Check the entry into adjustment item 3 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 119: ...ised date Error symptom Content LCD TV 2013 11 30 g ALL MODELS date Checking method 1 Press the MENU button on the remote controller 2 Select the AUDIO function of the Menu 2 Select the AUDIO function of the Menu 3 Select TV Speaker Or Other Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 120: ...V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND 19 GND 20 GND 21 GND 22 L DIM0_VS 23 L DIM0_MOSI 24 L DIM0_SCLK Checking order when there is no audio Check the contact condition of or 24V connector of Main Board Measure the 24V 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...

Page 121: ...WOL 3 BT_RESET 4 USB_DM 5 NC 6 USB_DP 7 WOL 8 GND 9 EYE_SDA 10 GND 11 EYE_SCL 12 KEY1 13 GND 14 KEY2 15 IR 16 3 5V_ST 17 LED_R 18 GND Checking order 1 2 Check IR cable condition between IR Main board 3 Check the st by 3 5V on the terminal 16 4 When checking the Pre Amp when the power is in ON condition it is normal when the Analog Tester needle moves slowly and defective when it does not move at a...

Page 122: ... the right or the left button on the remote controller And find the V COM value Which is no or As pushing the right or the left button on the remote controller And find the V COM value Which 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 ...

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