LG 55LX9500 Service Manual Download Page 93

Page: 93 / 110

LGE Internal Use Only

Checking method:
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.

Standard Repair Process Detail Technical Manual

TUNER checking part

A. Video error_Video error, video lag/stop

Established

date

Revised

date

Error

symptom

Content

LCD TV

Summary of Contents for 55LX9500

Page 1: ...E CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LB03R MODEL 55LX6500 55X6500 TD North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL63748605 1006 REV00 ...

Page 2: ...e Only Copyright 2010 LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 9 EXPLODED VIEW 16 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ...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 metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path t...

Page 4: ...ch parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC No Item Specification Remark 1 Display Screen Device 139 cm 55 inch wide color display module 2 Aspect Rati...

Page 5: ... Coordinates RED X 0 644 Default Y 0 333 White X 0 308 Y Typ 0 605 Typ Green X 0 05 0 149 0 05 Y 0 059 Blue X 0 279 Y 0 292 3 Contrast ratio 1000 1300 4 3D Crosstalk 14 18 5 Luminance Uniformity 2D Only 80 6 Response Time Gray to Gray 4 8 ms Response Time MPRT 8 12 ms Response Time Uniformity δ MPRT 1 Response Time Uniformity δ G to G 1 7 Dynamic CR 6000000 7000000 8 Color Temperature Cool Typ 0 2...

Page 6: ...20p 9 1280x720 45 00 60 00 HDTV 720p 10 1920x1080 31 25 50 00 HDTV 1080i 11 1920x1080 33 75 60 00 HDTV 1080i 12 1920x1080 33 72 59 94 HDTV 1080i 13 1920x1080 56 250 50 HDTV 1080p 14 1920x1080 67 5 60 HDTV 1080p No Specification Proposed Remarks Resolution H freq kHz V freq Hz Pixel Clock MHz 1 720 400 31 468 70 08 28 321 For only DOS mode 2 640 480 31 469 59 94 25 17 VESA Input 848 480 60 Hz 852 4...

Page 7: ... 1024 63 595 60 0 108 875 SXGA HDCP FHD model 8 1920 1080 67 5 60 00 138 625 WUXGA HDCP FHD model 2 PC Mode No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 720 480 31 469 31 5 59 94 60 27 00 27 03 SDTV 480P 2 720 576 31 25 50 54 SDTV 576P 3 1280 720 37 500 50 74 25 HDTV 720P 4 1280 720 44 96 45 59 94 60 74 17 74 25 HDTV 720P 5 1920 1080 33 72 33 75 59 94 60 74 17 74 25 HDTV 10...

Page 8: ...k 1 1280 720 45 00 60 00 74 25 Side by Side HDTV 720P Top Bottom 89 9 90 59 94 60 148 35 HDMI V1 4 with 3D Frame Packing 2 1280 720 37 5 50 74 25 Side by Side HDTV 720P Top Bottom 75 50 148 5 HDMI V1 4 with 3D Frame Packing 3 1920 1080 33 75 60 74 25 Side by Side HDTV 1080I Top Bottom 4 1920 1080 28 125 50 74 25 Side by Side HDTV 1080I Top Bottom 5 1920 1080 27 24 74 25 Side by Side HDTV 1080P Top...

Page 9: ...view ADC adjustment is needed to find the optimum black level and gain in Analog to Digital device and to compensate RGB deviation 2 Equipment Condition 1 Jig RS 232C protocol 2 MSPG 925 Series Pattern Generator MSPG 925FA pattern 65 Resolution 480i Comp1 MSPG 925FA Model 209 pattern 65 1080P Comp1 MSPG 925FA Model 225 pattern 65 1920 1080 RGB MSPG 925FA Model 225 pattern 65 Pattern Horizontal 100...

Page 10: ...AN port PC LAN Port 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program IP Number 12 12 2 2 2 LAN PORT inspection PING TEST 1 Play the LAN Port Test Program 2 Connect each other LAN Port Jack 3 Play Test F9 button and confirm OK Message 4 Remove LAN CABLE 3 5 Model name serial number download 1 Model name Serial number D L A Press Power on key o...

Page 11: ... select 7 External ADC 1 COMP 1080p on the menu Press enter key The adjustment will start automatically 5 If ADC calibration is successful ADC RGB Success is displayed If ADC calibration is failure ADC RGB Fail is displayed 6 If ADC calibration is failure after recheck ADC pattern or condition retry calibration Error message refer to 5 2 ADC 1920 1080 RGB 1 Check connected condition of Component R...

Page 12: ...0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20 50 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 D7 80 02 03 37 F1 4E 10 1F 84 13 05 14 0 3 02 12 20 21 90 22 15 01 26 15 07 50 09 57 07 78 03 0C 00 XX XX A0 B8 2D 20 C0 0E 01 40 0A 3C 08 20 18 20 98 20 58 B0 20 38 20 E3 05 03 01 01 1D 80 18 71 1C 16 20 58 C...

Page 13: ...10 cm and perpendicular of the module surface 80 100 3 Aging time After Aging Start Keep the Power ON status during 5 Minutes In case of LCD Back light on should be checked using no signal or Full white pattern 4 3 6 Reference White Balance Adj coordinate and color temperature A Luminance 216 Gray A Standard color coordinate and temperature using CS 1000 over 26 inch A Standard color coordinate an...

Page 14: ...paration Check that Power Cord is fully inserted to the SET If loose re insert 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 for...

Page 15: ...V 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 downloading have to adjust TOOL OPTION again 1 Push IN START key in service remote control 2 Select Tool Option 1 and Push OK button 3 Push in the number Each model has their number 8 3D function test Pattern Generator MSPG 3233 HDMI mode No 37...

Page 16: ...PLODED VIEW Many electrical and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without per...

Page 17: ...31 Y27 GPIO_32 G2 GPIO_33 G3 GPIO_34 G5 GPIO_35 G6 GPIO_36 G4 GPIO_37 L24 GPIO_38 P25 GPIO_39 L5 GPIO_40 K4 GPIO_41 K1 GPIO_42 L27 GPIO_43 M26 GPIO_44 N23 GPIO_45 R28 GPIO_46 R27 GPIO_47 R26 GPIO_48 P28 GPIO_49 P27 GPIO_50 K6 GPIO_51 K5 GPIO_52 P26 GPIO_53 M3 GPIO_54 M2 GPIO_55 M1 GPIO_56 L4 GPIO_57 L6 SGPIO_00 W27 SGPIO_01 W28 SGPIO_02 W26 SGPIO_03 W25 SGPIO_04 J2 SGPIO_05 J1 SGPIO_06 K3 SGPIO_07...

Page 18: ... POD2CHIP_MDI4 E26 POD2CHIP_MDI5 D28 POD2CHIP_MDI6 D27 POD2CHIP_MDI7 D26 POD2CHIP_MISTRT E23 POD2CHIP_MIVAL E24 CHIP2POD_MCLKO F25 CHIP2POD_MDO0 C27 CHIP2POD_MDO1 C26 CHIP2POD_MDO2 B28 CHIP2POD_MDO3 B27 CHIP2POD_MDO4 A27 CHIP2POD_MDO5 F24 CHIP2POD_MDO6 F23 CHIP2POD_MDO7 E25 CHIP2POD_MOSTRT C28 CHIP2POD_MOVAL A28 VDAC_AVDD2P5 AC18 VDAC_AVDD1P2 AF20 VDAC_AVDD3P3_1 AG20 VDAC_AVDD3P3_2 AG21 VDAC_AVSS_...

Page 19: ... AC9 SD_INCM_CVBS2 AF10 SD_INCM_CVBS3 AH12 SD_INCM_CVBS4 AG13 SD_SIF1 AF17 SD_INCM_SIF1 AG17 SD_FB AD15 SD_FS AE16 SD_FS2 AE17 PLL_VAFE_AVDD1P2 AB16 PLL_VAFE_AVSS AA15 PLL_VAFE_TESTOUT AC16 RGB_HSYNC AG3 RGB_VSYNC AF4 I2S_CLK_IN AE18 I2S_CLK_OUT AF18 I2S_DATA_IN AD17 I2S_DATA_OUT AH19 I2S_LR_IN AD18 I2S_LR_OUT AG18 AUD_LEFT0_N AG26 AUD_LEFT0_P AH26 AUD_AVDD2P5_0 AF23 AUD_AVSS_0_1 AA20 AUD_AVSS_0_2...

Page 20: ...12 240 1 C444 470pF C494 0 1uF DDR1_DM0 004 H6 DDR01_CASb A1 2V DDR0_CLK 004 C7 004 C4 AR405 75 C472 0 1uF DDR1_DM1 004 A4 AR400 75 DDR1_DQS0b 004 H6 AR402 75 DDR1_DM0 004 A4 DDR0_A 4 6 DDR1_A 4 6 DDR1_DQ 8 15 004 B5 DDR0_DQS0b 004 E6 R411 0 OPT DDR01_ODT DDR1_VREF0 DDR01_BA2 DDR0_DQS1 004 A4 C473 10uF C476 10uF C454 10uF C448 10uF C469 10uF C443 10uF C480 10uF C458 10uF C401 1uF C410 1uF C407 1uF...

Page 21: ...F 50V R1102 470K R1109 470K SC1_B R1106 0 D1115 5 6V 3 5V_ST C1119 27pF 50V C1121 27pF 50V COMP2_Y C1106 27pF 50V L1104 270nH COMP2_L_IN L1105 270nH L1101 270nH Q1103 MMBT3904 F OPT E B C HP_DET C1107 27pF 50V 3 3V_NORMAL Q1101 MMBT3904 F OPT E B C C1127 100pF D1106 5 5V COMP2_Pr R1122 1K OPT C1131 1000pF 50V OPT C1108 27pF 50V R1123 1K R1104 1K L1100 270nH REAR_AV_CVBS 11 C4 AL18 C1118 27pF 50V C...

Page 22: ...METIC 09 10 xx MOTION_REMOCON 20 100 GP2_BCM_ATSC 3 3V_NORMAL R1701 100 M_REMOTE_RX 9 F3 9 G4 M_REMOTE_TX 9 F3 9 G4 R1702 100 L1700 BLM18PG121SN1D 120 ohm 3 3V_NORMAL R1700 100 M_RFMODULE_RESET 9 F3 9 G4 P1700 12507WR 08L 1 2 3 4 5 6 7 8 9 DC 9 F3 9 G3 R1703 100 R1704 100 DD 9 F3 9 G3 R1706 2 7K R1707 2 7K CI_CD1 M_RFMODULE_RESET R1712 0 Motion Remocon Interface Motion Remote controller ALL M_REMO...

Page 23: ... 51 PVDD1A_1 52 PVDD1A_2 53 OUT1A_1 54 OUT1A_2 55 PGND1A_1 56 PGND1A_2 57 EP_PAD C2135 22000pF 50V C2122 22pF 50V 3AMP OPT L2103 BLM18PG121SN1D C2166 0 47uF 50V C2148 1uF 25V 0 01uF C2177 50V 3AMP OPT R2155 0 C2162 390pF 50V R2143 4 7K C2144 1uF 25V R2121 3 3 3AMP OPT R2140 4 7K D2100 100V 1N4148W 3AMP OPT 0 1uF C2167 50V C2146 10uF 35V R2110 100 C2164 0 47uF 50V C2143 22000pF 50V C2141 1uF 25V R2...

Page 24: ...Y MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC GP2_BCM_ATSC 09 10 xx LG_LOGO_LE9500 22 100 Q2200 2SC3052 E B C 3 5V_ST R2200 100 R2229 0 1 10W 5V_NORMAL LED_B LG_LOGO R2228 33 1 10W OPT P2200 12507WR 04L 1 2 3 4 5 D2200 5 6V CDS3C05HDMI1 OPT LG LOGO FOR LE9500 Copyright 2010 LG Electronics Inc All rights reserved LGE Internal Use Only ...

Page 25: ...3V 13 B2 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 N 9 SIF 8 NC IF_TP 3 B 5V 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 P 19 SHIELD TU2600 3 TDTJ S031D AU_Asia_Tuner_V 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 9 SIF 8 NC IF_TP 3 B 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 19 SHIELD TU2600 4 TDTJ S001D AU_Asia_T...

Page 26: ...OD R2808 22 ISDB_DEMOD C2804 0 1uF ISDB_DEMOD C2813 0 1uF 16V ISDB_DEMOD R2803 10K ISDB_DEMOD C2811 0 1uF 16V ISDB_DEMOD C2801 0 1uF ISDB_DEMOD C2815 0 1uF 16V ISDB_DEMOD C2822 0 1uF 16V ISDB_DEMOD R2807 22 ISDB_DEMOD R2811 2 2K OPT C2808 0 1uF ISDB_DEMOD R2813 22 R2814 22 IC2800 MN884433 ISDB_DEMOD 1 VSS_1 2 AVDD_S 3 AII_S 4 AIQ_S 5 AVSS_S 6 VRT_S 7 VRB_S 8 TCPO_S 9 VDDL_1 10 MSCL_S 11 MSDA_S 12 ...

Page 27: ...ER R2901 0 INT_DEMOD IF_AGC_ISDB 3 3V_DE C2903 10uF 10V ISDB_POWER R2903 5 1K ISDB_SEMTECH TP2901 C2900 0 1uF ISDB_POWER IF_AGC_SEL TU_IF_AGC_BCM C2901 0 1uF ISDB_POWER 3 3V_NORMAL 1 2V_DE R2904 10K ISDB_BCD R2905 10K ISDB_SEMTECH R2906 10K ISDB_BCD L2901 ISDB_BCD 5V_NORMAL C2907 0 1uF OPT C2906 0 1uF OPT R2903 1 10K ISDB_BCD IC2900 AP2132MP 2 5TRG1 ISDB_BCD 3 VIN 2 EN 4 VCTRL 1 PG 5 NC 6 VOUT 7 A...

Page 28: ..._CTL2 D2201 5 6V CDS3C05HDMI1 R2211 100K OPT USB_DP1 USB_DM2 USB_CTL1 R2201 12K 1 10W 1 IC2201 USB2512A_AEZG 1 USBDN1_DM 3 USBDN2_DM 7 NC_2 9 NC_4 10 VDDA33_2 11 TEST 12 PRTPWR1 13 OCS1_N 14 VDD18 15 VDD33CR 16 PRTPWR2 17 OCS2_N 18 NC_5 19 NC_6 20 NC_7 21 NC_8 22 SDA SMBDATA NON_REM1 23 VDD33 24 SCL SMBCLK CFG_SEL0 25 HS_IND CFG_SEL1 26 RESET_N 27 VBUS_DET 28 SUSP_IND LOCAL_PWR NON_REM0 29 VDDA33_...

Page 29: ...3 3V_NORMAL R1896 27 BCM BT MODULE R1897 27 BCM BT MODULE R1898 0 BCM BT MODULE VREG_CTRL BT_RESET R1899 0 BCM BT MODULE BT_DP BT_DM D1898 5 6V CDS3C05HDMI1 BCM BT MODULE D1899 5 6V CDS3C05HDMI1 BCM BT MODULE R1889 10 BCM BT MODULE Q1801 RTR030P02 BCM BT MODULE S D G Q1800 2SC3052 BCM BT MODULE E B C BT_ON OFF R1887 47K BCM BT MODULER1886 47K BCM BT MODULE R1888 4 7K BCM BT MODULE L1899 500 OPT C1...

Page 30: ...UTDATA 4 CI_OUTDATA 5 CI_OUTDATA 6 CI_OUTDATA 7 CI_OUTCLK CI_OUTVALID CI_OUTSTART CI_OUTDATA 0 CI_OUTDATA 1 CI_OUTDATA 2 CI_OUTDATA 3 CI_OUTCLK CI_WAIT CI_MOD_RESET GP49 CI_CD2 GP38 CI_MOD_RESET CI_CD1 FE_TS_DATA_CLK FE_TS_VAL_ERR CI_WAIT CI_IREQ GP39 007 H5 016 AJ3 CI_CD1 CI_OUTCLK CI_OUTDATA 0 7 CI_OUTSTART CI_OUTVALID FE_TS_SYNC CI_CD2 EBI_RW 007 E6 CI_5V_CTL GP27 007 H7 CI_A 0 13 EBI_WE CI_SEL...

Page 31: ... 3D_IR C6902 10uF 10V 3D_IR C6903 0 1uF 3D_IR 5V_NORMAL USB_PWRON3 C6900 100uF 16V 3D_IR R6902 4 7K OPT L6900 MLB 201209 0120P N2 120 ohm OPT USB_PWRFLT3 R6903 2 7K OPT JK6900 KJA UB 4 0004 Outer_Emitter 1 2 3 4 5 3 3V_NORMAL R6901 0 OPT IC6900 AP2191SG 13 OPT EAN60921001 3 IN_2 2 IN_1 4 EN 1 GND 5 FLG 6 OUT_1 7 OUT_2 8 NC SC_RE1 SC_RE2 R6904 0 OPT R6905 0 OPT USB_PWRFLT3 USB_PWRON3 P6900 12507WR ...

Page 32: ...4 RLV3P P7800 TF05 51S TM480Hz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 C7801 1000pF 50V TM480Hz OPC_OUT RRXBCK RLV2P RRXB1 RRXB4 RLV0P RRXA0 RRXB0 RLCLKP RRXA3 RRXA3 R7801 0 TM480Hz L R_SYNC R7086 0 3DTV SCL2_3 3V SDA2_3 3V R7085 0 OPT R7084 0 OPT R7813 0 TM480Hz V_SYNC SDA3_3 3V R7812 0 TM48...

Page 33: ... OPT M0_MOSI C7902 100pF 50V OPT C7904 100pF 50V OPT C7909 100pF 50V OPT M3_SCLK C7912 100pF 50V OPT M0_SCLK C7908 100pF 50V OPT L_VS M2_MOSI C7911 100pF 50V OPT C7903 100pF 50V OPT C7910 100pF 50V OPT C7907 100pF 50V OPT R_VS R7908 3 3K Edge C7901 100pF 50V OPT S_MOSI S_SCLK C7906 100pF 50V OPT R7909 3 3K Edge M2_MOSI M1_SCLK R7916 22 Edge 55 R7917 22 Edge 55 R7901 22 Edge 55 R7904 22 IOP R7903 2...

Page 34: ... 0 C8035 22uF D1 8V L8012 3 6uH NR8040T3R6N R8052 10K 0 1uF C8050 R8051 6 8K C8042 0 01uF 25V 3 5V_ST C8038 0 01uF 25V C8031 22uF 10V C8044 100pF 50V OPT R8057 10K 1 C8048 22uF 10V R8056 10K 1 10W 1 C8034 0 01uF 25V L8008 CIC21J501NE IC8003 AOZ1072AI 3 AGND 2 VIN 4 FB 1 PGND 5 COMP 6 EN 7 LX_1 8 LX_2 R8007 0 NON_SCAN_LIPS R8014 0 SHARP R8076 0 400Hz_MD_MDSI 42_47_LOCAL DIMMING M2_MOSI R_VS R8078 0...

Page 35: ... PCL INTP6 37 P120 INTP0 EXLVI 38 P41 39 P40 40 RESET 41 P124 XT2 EXCLKS 42 P123 XT1 43 FLMD0 44 P122 X2 EXCLK OCD0B 45 P121 X1 OCD0A 46 REGC 47 VSS 48 VDD R8106 10K R8185 20K 1 16W 1 C8104 0 1uF R8184 47K 3 5V_ST NEC_ISP_Tx NEC_RXD R8128 22 NEC_EEPROM_SCL SCART1_MUTE R8133 22 R8110 10K LCD OLED R8104 10K NEC_TXD R8181 10K OPT R8145 22 R8186 20K 1 16W 1 MODEL1_OPT_1 R8190 22 R8123 10K OLED 3D AMP_...

Page 36: ...2 WIRELESS E B C R8205 47K R8220 47K COMMERCIAL R8202 47K C8211 1000pF 50V R8203 10K D8206 5 6V AMOTECH R8276 1 5K KEY1 3 5V_ST R8211 10K 1 3 3V_NORMAL Q8200 2SC3052 E B C L8202 BLM18PG121SN1D NEC_EEPROM_SCL NEC_EEPROM_SDA D8209 5 6V JK8200 XRJV 01V D12 180 1 2 3 4 5 6 7 8 D1 D2 D3 D4 9 L8204 CIC21J501NE D8212 5 6V D8211 5 6V D8207 5 6V EPHY_TDN D8208 5 6V EPHY_ACTIVITY R8281 510 C8216 1000pF 50V ...

Page 37: ...HDMI3 R8311 4 7K R8327 0 D0 _HDMI1 HDMI_RX0 CK _HDMI2 DDC_SDA_2 D8301 5 5V OPT CEC_REMOTE DDC_SDA_2 CK _HDMI1 D8307 A1 C A2 5V_NORMAL CK _HDMI2 D0 _HDMI3 C8304 0 1uF 16V R8322 47K HDMI_3 CEC_REMOTE CEC_REMOTE C8313 0 1uF 16V D8312 MMBD301LT1G R8337 0 GND R8307 0 HDMI_HPD_1 GND DDC_SCL_4 D8304 5 5V OPT HDMI_HPD_2 GND SDA2_3 3V DDC_SDA_3 5V_HPD1 GND R8300 1K HDMI_3 R8317 0 5V_HDMI_2 5V_HDMI_1 R8315 ...

Page 38: ...YNC_GND 11 GND_2 12 DDC_DATA 13 H_SYNC 14 V_SYNC 15 DDC_CLOCK 16 SHILED R8401 22 DSUB_B PC_L_IN 5V_NORMAL R8414 2 7K R8411 470K R8419 0 DSUB_G R8402 22 DSUB_DET R8413 2 7K R8423 0 OPT R8425 1K R8424 10K R8421 0 R8417 0 C8402 22pF 50V OPT C8403 22pF 50V OPT R8405 22 R8406 22 C8401 0 1uF C8404 0 1uF 16V C8405 18pF 50V C8406 18pF 50V R8416 22 R8415 22 R8422 100 R8420 10K D8401 30V ADUC30S03010L_AMODI...

Page 39: ... 3V_NORMAL C8600 100pF 50V R8608 1K C8611 100pF 50V R8601 470K D8602 5 6V R8606 0 C8607 1uF 25V R8607 0 R8602 470K C8606 1uF 25V D8603 5 6V C8612 100pF 50V C8608 27pF 50V C8601 27pF 50V L8600 270nH R8604 1K 3 3V_NORMAL C8604 100pF 50V D8606 5 6V R8600 10K D8604 5 5V SIDE_COMP_INCM C8613 0 1uF R8609 36 JK8601 KJA PH 1 0177 3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6 JK8600 KJA PH 1 0177 3 M3_DETECT 4 M4 5 ...

Page 40: ...2uF R8711 4 7K OPT C8703 0 1uF R8713 1K IC8700 MC14053BDR2G WIRELESS 3 Z1 2 Y0 4 Z 1 Y1 6 INH 5 Z0 7 VEE 8 VSS 9 C 10 B 11 A 12 X0 13 X1 14 X 15 Y 16 VDD R8704 22K R8712 47K OPT R8706 0 NON_WIRELESS R8708 0 NON_3DTV C8700 0 1uF 50V WIRELESS_TX WIRELESS_SCL R8714 10K TP8701 R8707 0 WIRELESS WIRELESS_DL_RX 3 3V_NORMAL 3 5V_ST IR_PASS R8701 0 WIRELESS WIRELESS_DETECT R8702 10K WIRELESS_RX R8703 0 NON...

Page 41: ...00 D8803 100V 1N4148W OPT C8815 10uF 10V OPT 0 1uF C8843 50V 0 1uF C8844 50V 3 3V_NORMAL R8808 100 R8801 100 POWER_DET R8813 12 R8816 12 C8801 10uF 10V OPT 0 1uF C8833 50V R8817 12 C8835 390pF 50V R8807 0 OPT 0 1uF C8841 50V R8824 0 R8802 100 SDA1_3 3V R8804 100 C8804 0 1uF 16V D8800 100V 1N4148W OPT R8810 10K C8821 1000pF 50V C8828 1uF 25V C8834 10uF 35V 0 1uF C8811 C8816 1uF 25V 24V_AMP C8822 1u...

Page 42: ...I TMS TDO TRST_N R9768 22 TCK P9700 12505WS 09A00 1 2 3 4 5 6 7 8 9 10 P9701 12505WS 04A00 1 3 3V 2 GND 3 RX 4 TX 5 R9761 22 R9763 22 R9760 22 R9765 22 R9759 22 R9764 22 R9762 22 R9776 22 R9750 22 R9751 22 R9742 22 R9743 22 R9744 22 R9745 22 R9746 22 R9747 22 R9748 22 R9749 22 C9763 0 1uF 16V C9700 0 1uF 16V OPT LG5111 IC9701 R1A1P A3 R1A1M A2 R1B1P A4 R1B1M B3 R1C1P B1 R1C1M B2 R1CLK1P C2 R1CLK1M...

Page 43: ... AP15 RA1M AN15 RB1P AP16 RB1M AN16 RC1P AP17 RC1M AN17 RD1P AN19 RD1M AP19 RE1P AN20 RE1M AP20 TCLK1P A4 TCLK1N B4 TA1P A2 TA1N B2 TB1P C3 TB1N C2 TC1P B3 TC1N A3 TD1P C5 TD1N C4 TE1P B5 TE1N A5 TCLK2P A8 TCLK2N B8 TA2P A6 TA2N B6 TB2P C7 TB2N C6 TC2P B7 TC2N A7 TD2P C9 TD2N C8 TE2P B9 TE2N A9 TCLK3P A12 TCLK3N B12 TA3P A10 TA3N B10 TB3P C11 TB3N C10 TC3P B11 TC3N A11 TD3P C13 TD3N C12 TE3P B13 T...

Page 44: ...1 L40 002 E39 002 W39 002 BD39 C218 0 1uF 16V C1207 0 1uF 16V C256 4 7uF 10V DDRS_WE 001 X13 002 F11 002 U6 002 BB5 DDRS_CKE 001 X13 002 F12 002 U7 002 AK12 C1236 0 1uF 16V DDR_ODT 001 Y38 002 F34 002 U31 002 BB31 C285 0 1uF 16V C278 0 1uF 16V DDRS_DM1 001 Z13 1 8V_DDR 1 8V_DDRS R2217 150 DDRS_BA0 001 Z13 002 U8 002 AK13 002 BB7 R249 100 OPT DDR_CLK 001 V38 002 AI35 C214 0 1uF 16V R288 150 0 9VREF...

Page 45: ...F 16V C316 22uF 16V C375 22uF 16V C310 22uF 16V OPT R317 5 1K R334 39K OPT L318 120 ohm BCD_REGULATOR C3003 10uF 16V R362 6 8K 1 16W 1 OPT C395 10uF 16V 0 1uF C391 2 5VQ 0 1uF C399 R352 1 15K 1 R1 SEMTECH 2V5 R352 30K BCD R359 0 BCD C389 10uF 16V R360 1 12K 1 R2 SEMTECH IC308 AP2132MP 2 5TRG1 BCD 3 VIN 2 EN 4 VCTRL 1 PG 5 NC 6 VOUT 7 ADJ 8 GND 9 EP C390 10uF 16V R351 15K BCD R349 91K SEMTECH R360 ...

Page 46: ... C419 0 1uF 16V GSC_A 004 M10 C423 0 1uF 16V 3 3V_TCON_M R446 33 C414 1uF 10V I2CEN_M 004 O10 004 X8 R448 3 3K OPT SOE_L 008 AL18 3 3V_TCON C404 0 1uF 16V 1 8V_TCON GSP_A 004 M10 L401 120 ohm R436 100 IC401 M24C16 WMN6T 3 NC E2 2 NC E1 4 VSS 1 NC E0 5 SDA 6 SCL 7 WC 8 VCC GSP_R_A 004 M10 SSC_SYNC_M004 R10 SOE_A 004 R10 004 AA13 C424 0 1uF 16V C420 220pF OPT C435 1uF 10V C425 0 1uF 16V C428 0 1uF 1...

Page 47: ...2K VCO_SYNC_S 005 N9 R519 2K I2CEN_S 004 X7 005 M9 3 3V_TCON_S R551 3 3K R504 3 3K 3 3V_TCON_S R506 3 3K OPT 3 3V_TCON_S LVDS_SEL_S 005 I25 RBF_S 005 H9 R502 3 3K OPT REVERSE_S 005 L25 R505 10K OPT R509 10K OPT R507 10K R500 3 3K OPT BIT_SEL_S 005 M25 3 3V_TCON_S R501 10K FRC_ON_S 005 M25 3 3V_TCON_S R508 3 3K 3 3V_TCON_S R503 10K R525 33 R524 33 IC500 TL2425MC GLORY 1 R1AN 2 R1AP 3 R1BN 4 R1BP 5 ...

Page 48: ...IN 28 FREQ 29 DLY2 30 SS 31 VC 32 EN2 33 EN1 34 PGND1 35 PGND2 36 PGND3 37 SW_1 38 SW_2 39 SWI 40 NC_3 41 FB 42 SWO 43 AVIN 44 NEG2 45 POS2 46 OUT2 47 OGND 48 NEG1 R616 1K C609 10uF 10V R615 1K C618 1uF 25V C642 OPT VCOMLOUT 008 AL13 C604 68pF 50V C613 0 22uF 16V DPM 007 W8 004 AN15 006 Q5 FLK 004 AI15 DPM_VDD 006 S16 006 S5 C616 0 1uF 50V C614 10uF 10V R626 5 6K C625 22000pF 50V C606 1uF 25V R601...

Page 49: ... 50V IC700 MAX15023ETG T 1 FB1 3 EN2 7 LX1 9 DH1 10 DH2 11 BST2 12 LX2 13 PGND2 14 DL2 15 PGOOD2 16 VCC 17 FB2 18 COMP2 19 RT 20 SGND 21 IN 22 LIM2 23 LIM1 24 COMP1 5 DL1 8 BST1 6 PGND1 4 PGOOD1 2 EN1 C726 1uF 50V C725 0 22uF 16V C718 47pF 50V R715 2 2 R722 27K R721 10 C723 1uF 50V DPM 004 AN15 006 D12 006 Q5 VLCD_POWER 12V R725 16K C734 0 1uF 50V R708 510 Q702 SI4804BDY 3 S2 2 G1 4 G2 1 S1 5 D2_1...

Page 50: ...LMVCLKN 004 V17 VGL 5V LLMV0P 005 T14 SOE_R 004 AI13 SOE_L 004 AD13 HVDD 8V RLMV1P 004 V15 GSC 004 AN17 008 AE23 VCOMLFB 006 H16 V6 008 F22 008 AL16 V10 008 F19 008 AL16 RRMV0P 004 V19 V4 008 F23 008 AL17 LLMV1N 005 T14 RLMV1N 004 V15 RRMV1P 004 V19 RRMVCLKN 004 V21 LLMV2N 005 T15 LLMV2P 005 T15 V5 008 F22 008 AL16 C816 0 1uF 50V LRMV5N 005 T21 OPT_P 004 R10 LLMV5N 005 T17 RLMV6P 004 V18 H_CONV 00...

Page 51: ...O 6 C2 B1_IO 7 C1 B1_IO 8 D2 B1_IO 9 D1 B1_IO 10 H7 B1_IO 11 H6 B1_IO 12 J6 B1_IO 13 H4 B1_IO 14 H3 B1_IO 15 E2 B1_IO 16 E1 B1_IO 17 F2 B1_IO 18 F1 B1_IO 19 J5 B1_IO 20 H5 B1_IO 21 K6 nSTATUS J7 B1_IO 22 K7 B1_IO 23 J4 B1_IO 24 H2 B1_IO 25 H1 B1_IO 26 J3 B1_IO 27 J2 B1_IO 28 J1 B1_IO 29 K2 DCLK K1 B1_IO 30 K5 nCONFIG L5 TDI L2 TCK L1 TMS L4 TDO L3 nCE G2 CLK0 G1 CLK1 IC1000 EP3C55F484C6N T2 CLK2 T...

Page 52: ... VDDQ4 E9 VDDQ5 C9 VDDQ6 C7 VDDQ7 C3 VDDQ8 C1 VDDQ9 A9 VDDQ10 R1 VDD1 M9 VDD2 J9 VDD3 E1 VDD4 A1 VDD5 B9 DQ15 B1 DQ14 D9 DQ13 D1 DQ12 D3 DQ11 D7 DQ10 C2 DQ9 C8 DQ8 F9 DQ7 F1 DQ6 H9 DQ5 H1 DQ4 H3 DQ3 H7 DQ2 G2 DQ1 G8 DQ0 1V8 C1042 100pF 50V C1028 0 1uF 16V DDR2_CLK DDR_CS DDR_LDM 0 SDDR_DQ 31 16 R1002 33 SDDR_DQ 15 0 R1001 100 DDR_BA 0 DDR_RAS DDR_A 12 0 DDR_A 12 0 AR1008 33 R1003 33 DDR_LDQS 1 C10...

Page 53: ......

Page 54: ...d service purposes Repair Guide for 3D BCM Chassis LG Electronics LCD TV JUN 1th 2010 Contents 1 Tool Option Information 2 Area Option Information 3 Main PCB for BroadBand 4 Block Diagram 5 Inner Connection 6 Repair Process Troubleshooting By M R VIJAYSHANKAR Model 42 47 55LX6500 TD 47 55LX9500 TA ...

Page 55: ...LED Array LED Package Module Bezel 폭 47LE9500 7mm 47LE8500 14mm 27 BLU A ssy 864 LED Packages Slim Full LED Local Dimming depicts more deep Black color Not only Direct LED s Picture quality but Edge LED s thin thickness 별첨 2 types of LED IOP Benefit More Clear More Real Model LE8500 LX9500 Local Dimming inch 47 55 Local Dimming Block quantity 9 row 24 216EA 10 row 24 240EA inch 47 55 LED package q...

Page 56: ...r More Real Best picture quality thin TV Local Dimming Local Dimming 12 Local Dimming Blocks BLU structure Edge LED Edge Type w Local Dimming Upper Metal Cover LED Array LED Packages 47 264 42 228 LED Array is on the Top Bottom of Module Local dimming depicts more deep black Feature 별첨 2 types of LED Edge Model LE7500 LE5500 LX6500 ...

Page 57: ...aker Module Rev HDMI Count HDMI Switch IC HDMI Pos ition Component Count CompPos ition CompAV Common CompSwap SCART Count RCA AV Count RCA AV Pos ition RGB Count USB input EMF JPEG MP3 Divx Bluetooth Digital Ey e HeadPhone e Manual Audio Amp Backlight Ty pe W ireles s Ready Boot Logo DV R Ready Ins tant Boot Local Dimming CIFS DLNA THX Digital Demod Analog Demod THX Media Director Picture Wizard I...

Page 58: ...ya ISRAEL H Y C SAKAL ISRAEL SBITANY Area Option bit수 17409 17473 23553 23649 23554 23556 18209 25601 7169 22529 38913 6145 Default Lang 0 ENG 1 POR 2 SPA 3 2 ENG ENG ENG ENG ENG ENG ENG ENG ENG ENG ENG ENG Wi Fi Frequency Wi Fi 사용 금지 대역 구분 1 6 3 1 1 1 1 2 4 1 1 1 1 1 1 Lang Gr OSD Language Gr 선택 0 ALL 1 ARAB 2 HEB 3 2 ARAB ARAB ARAB ARAB ARAB ARAB ARAB ARAB ALL ARAB HEB ALL Teletext Lang Gr 0 W E...

Page 59: ...es 3 Main PCB for Broadband 1 Main processor DDR Memory Flash Memory 2 3 LG5111 Local Dimming Processor 4 5 Micom for Key IR sensing 6 HDMI switch 4 1 7 Audio AMP LX6500 LX9500 Main Board LX6500 LX9500 1 2 Voltage 24V 12V 5V 3 3V 2 5V 1 8V 1 2V 3 4 5 6 Audio AMP Only LX9500 for 3 AMP 7 8 USB switch 2 1 8 Features ...

Page 60: ... Cable To Inner Emitter Emitter Cable 1 2 To Formatter Board 12V Cable 3 4 5 6 To Master LED Driver Board Local Dimming Cable 7 To Woofer Speaker Speaker Cable 8 A B C D E F G H I J K L A B C D E F G H I J K L To R Speaker Only LX9500 Speaker Cable To L Speaker Speaker Cable To IR Intellegent Sense Key IR Cable To LG LOGO Only LX9500 LOGO Cable To Bluetooth Only LX6500 Bluetooth Cable M M Main Boa...

Page 61: ...Only for training and service purposes 1 FRC DDR Memory 2 3 FPGA 4 VOLTAGE To Main Board 12V Cable To Main Board LVDS Cable Formatter Board TCON EEPROM To Main Board Formatter upgrade Cable To LCD Module LVDS 240Hz Cable LX9500 1 2 3 4 A B C D D A B C D 3 Main PCB for Broadband ...

Page 62: ...Only for training and service purposes 1 FRC DDR Memory 2 3 FPGA 4 VOLTAGE To Main Board 12V Cable To Main Board LVDS Cable Formatter Board TCON EEPROM To Main Board Formatter upgrade Cable To LCD Module LVDS 240Hz Cable LX6500 A B C D 1 2 3 4 A B C D D 3 Main PCB for Broadband ...

Page 63: ...D78F0513 MAX3232 BCM3556 BCM3556 DVB DVB Data 0 7 IF SIF TU_CVBS AV Component 1 Y Pb Pr L R CVBS L R HDMI4 Addr 0 1 CS Component 2 Y Pb Pr L R Audio L R Audio L R for RGB HDMI 2 HDMI 3 SPDIF DP DM 5V RX TX JACK PACK JACK PACK at REAR at REAR JACK PACK JACK PACK at SIDE at SIDE SCL SDA_3 3V SCL SDA_3 3V Local Dimming IC LG5111 LVDS 3D Formatter Board FHD 60Hz Main tuner TDTJ S031D X tal 25MHz IR mo...

Page 64: ... uPD78F513 IC8101 System flash Memory 512Mbit Peri I2C ch2 I2C ch3 I2C ch1 256M System 구성도 data 0 7 data1 0 15 CH4 Audio AMP NTP7000 IC8801 FRC LG1120 Formatter IC102 I2C ch4 Tuner Intelligent Eye P8200 HDMI SW TDA19997 IC8300 LOGO P2200 L D LG5111 IC9701 SCL1_3 3V SCL2_3 3V SCL3_3 3V WIRELESS JK8700 Audio AMP NTP7000 IC2201 Audio AMP NTP7000 IC2100 NVRAM M24M01 IC102 FPGA EP3C55F Formatter IC1000...

Page 65: ... 3 Bluetooth PCB 4 LOGO PCB 5 Soft Touch Key PCB 6 IR Sensor PCB 1 2 3 4 5 6 Main PSU cable Main Formatter LVDS cable LED driver Module cable BT shield cable SPK cable LOGO Touch IR cable PCBs Cables 42 47LX6500 PSU 7 1 2 3 4 5 6 7 8 IR Emitter PCB 8 1 2 3 4 5 6 7 8 9 IR Emitter cable Formatter 12V cable Formatter Upgrade cable 7 8 9 10 Main Module cable 10 10 ...

Page 66: ...th PCB 4 LOGO PCB 5 Soft Touch Key PCB 6 IR Sensor PCB 1 2 3 4 5 6 Main PSU cable Main Formatter LVDS cable Power LED driver cable BT shield cable SPK cable LOGO Touch IR cable PCBs Cables 55LX6500 PSU 7 8 IR Emitter PCB 8 9 10 IR Emitter cable Main LED driver cable 7 LED Driver Module 11 Formatter Upgrade cable 1 2 3 4 5 6 7 8 1 2 3 7 4 5 6 8 11 Formatter 12V cable 9 10 ...

Page 67: ...Use Only Copyright 2010 LG Electronics Inc All rights reserved Only for training and service purposes 5 Interconnection 2 sub PCB 7 6 IR Sensor Soft Touch Logo To Main 6 LOGO Touch IR cable 5 SPK unit 42 47 55LX6500 ...

Page 68: ...Formatter LVDS cable Power M LED driver cable Main S LED driver cable PCBs Cables 47LX9500 PSU 7 8 Built in Master LED Driver PCB 9 10 11 IR cable Speaker cable 8 Logo Cable 12 Formatter Upgrade cable Formatter 12V cable Col 1 Col 2 Col 3 9 connection cables for each BLU Ass y 1 2 3 6 5 4 7 9 Built in Slave LED Driver PCB 8 9 1 2 3 4 IR Emitter cable 4 Power S LED driver cable Main M LED driver ca...

Page 69: ...Formatter LVDS cable Power M LED driver cable Main S LED driver cable PCBs Cables 55LX9500 PSU 7 8 Built in Master LED Driver PCB 9 10 11 IR cable Speaker cable 8 Logo Cable 12 Formatter Upgrade cable Formatter 12V cable Col 1 Col 2 Col 3 10 connection cables for each BLU Ass y 9 Built in Slave LED Driver PCB IR Emitter cable 4 Power S LED driver cable Main M LED driver cable 13 Formatter Module c...

Page 70: ... error video lag stop 3 4 Color error 4 5 Vertical Horizontal bar residual image light spot external device color error 5 6 B Power error No power 6 7 Off when on off while viewing power auto on off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 D Function error No response in remote controller key error recording error memory error 10 11 External device recog...

Page 71: ...s Check Power Board 20V 12V or 24v output Normal voltage Y Replace Inverter or module N Repair Power Board or parts 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 13 LCD TV Error symptom A Video error No video Normal audio A4 A1 A2 A28 A7 A...

Page 72: ...nd service purposes Normal voltage Check various voltages of Power Board 5V 12V 20V or 24V No Video No audio Check and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A4 Established date Revised date 2 13 LCD TV Error symptom 2 ...

Page 73: ...not By connecting RF Cable at other equipment DVD Player Set Top Box Different maker TV etc SVC Bulletin Replace Main B D Check Tuner soldering Normal Picture Y N Y Close Close By using Digital signal level meter By using Diagnostics menu on OSD Menu Red key Signal test Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cabl...

Page 74: ...by input External Input COMPONENT RGB HDMI DVI Y External device Cable normal External Input Component error Check external 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 N Y End Replace module Request repair for external device cable Color error Check Test pattern Standard Repair Pr...

Page 75: ...error External Input error 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 N Y Replace Main B D Screen normal Check screen condition by input External Input Component RGB HDMI DVI Request repair for external device Component error RGB error HDMI DVI Connect other external device and cabl...

Page 76: ...peration Check Power On High Check Power cord was inserted properly Check Power LED Replace Power B D Measure voltage 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 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A19 A4 Standard Repair Process Established date Revised date 6 13 LCD TV Error symptom 6 Stand By Red O...

Page 77: ...13 LCD TV Error symptom Standard Repair Process 7 Status Power off List Explanation Normal POWEROFF_REMOTEKEY Power 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 POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power ...

Page 78: ...ser menu Speaker off Off N Y Cancel OFF Check audio B 20V or 24V of Power Board Normal voltage Y N Replace Power Board 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 8 ...

Page 79: ...recked audio Discontinuation Noise only for Analog Wrecked audio Discontinuation Noise only for External Input 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 20V or...

Page 80: ...plain the customer cause is interference from light in room Check R C Operating When turn off light in room Check Replace Baterry of R C Check Repair Cable connection Connector solder Normal operating Check B 5V On Main B D A27 Normal Voltage Close N N Check 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...

Page 81: ...l information Check input signal Signal input Y N External Input and Component Recognition error Check and fix external 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 11 ...

Page 82: ...ovide the description OR If there is a Tak Tak noise from the cabinet refer to the KMS fix information and then proceed as shown in 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...

Page 83: ...urposes Replace module Zoom part with exterior damage Module damage Cabinet damage Replace cabinet Replace remote 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 Standard Repair Process A28 13 ...

Page 84: ...king method A7 9 A Video error_Color error LCD TV connection diagram A8 10 Tuner Checking Part A9 11 Check 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...

Page 85: ..._Off when on off while viewing POWER OFF MODE checking method A22 27 B Power error_Off when on off while viewing POWER 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 c...

Page 86: ...lished date Standard Repair Process Detail Technical Manual Revised date A1 Error symptom Content Check 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 red box locations LX6500 LCD TV A1 LX9500 ...

Page 87: ...r B 24V measuring method A Video error_No video Normal audio A2 Established date Revised date Error symptom Content LCD TV A2 Check the DC 20V 24V 12V 3 5V and Inverter on IOP 47 Edge LED 55 Edge LED 42 47 P204 1 5 24V 6 10 GND 11 PWM Dim 1 Edge LED NC 12 Inverter ON 13 NC Edge LED PWM Dim 1 14 Error P205 1 5 24V 6 10 GND 11 PWM Dim 1 12 Inverter ON IOP 55 14 For LX95 GND ...

Page 88: ...ool Medium Warm re enter the value after replacing the MAIN BOARD Standard Repair Process Detail Technical Manual Check White Balance value A Video error_No video Normal audio ALL MODELS A4 Established date Revised date Error symptom Content LCD TV A3 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 Cu...

Page 89: ...error_No video Audio A5 Established date Revised date Error symptom Content LCD TV A4 Check the DC 20V 24V 12V 3 5V Pin layout 24P 1 Power on 2 24V IOP Edge 55 20V Edge 42 47 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 NC 17 12V 18 Inverter ON 19 12V 20 LE NC IOP PWM Dim 1 21 12V 22 LE PWM Dim 1 IOP NC 23 NC 24 Error out IOP 47 Edge LED 55 Edge LED 42...

Page 90: ...d key customer support Æ signal test Æ select channel When the signal is strong use the attenuator 10dB 15dB 20dB etc Standard Repair Process Detail Technical Manual TUNER 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 A6 ...

Page 91: ...tandard Repair Process Detail Technical Manual LCD TV Version checking method A Video error_Video error video lag stop 1 Checking method for remote controller for adjustment Press the IN START with the remote controller for adjustment Version ALL MODELS A7 Established date Revised date Error symptom Content LCD TV A7 ...

Page 92: ... rights reserved Only for training and service purposes Standard Repair Process Detail Technical Manual LCD TV connection diagram 1 A Video error _Vertical Horizontal bar residual image light spot A8 Established date Revised date Error symptom Content LCD TV A8 ...

Page 93: ...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 Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop A9 Established date Revised date Error symptom Content LCD TV A9 ...

Page 94: ...Only for training and service purposes Standard Repair Process Detail Technical Manual Check Link Cable LVDS reconnection condition A Video error_Color error LX6500 A10 Established date Revised date Error symptom Content LCD TV A10 Check the contact condition of the Link Cable ...

Page 95: ...Only for training and service purposes Standard Repair Process Detail Technical Manual Check Link Cable LVDS reconnection condition A Video error_Color error Check the contact condition of the Link Cable A11 Established date Revised date Error symptom Content LCD TV A11 LX9500 ...

Page 96: ...cess Detail Technical Manual Adjustment Test pattern ADJ Key A Video error_Color error 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 A12 Established date Revised date Error symptom Content LCD TV A12 ...

Page 97: ...efect CNT Broken T Con Defect CNT Broken T Con Defect CNT Broken T Con Defect CNT Broken Solder defect CNT Broken Solder 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 T Con Board 1 A 1 5 ...

Page 98: ...ghts reserved Only for training and service purposes Abnormal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange T Con Board 2 A 2 5 ...

Page 99: ...nternal Use Only Copyright 2010 LG Electronics Inc All rights reserved Only for training and service purposes Appendix Exchange PSU LED driver No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 ...

Page 100: ... rights reserved Only for training and service purposes Appendix Exchange the Module 1 Panel Mura Light leakage Press damage Crosstalk Crosstalk Press damage Panel Mura Light leakage Press damage A 4 5 Un repairable Cases In this case please exchange the module ...

Page 101: ...tal Block Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Vertical Line Source TAB IC Defect Vertical Block 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 ...

Page 102: ...ice purposes Standard Repair Process Detail Technical Manual Check front display LED B Power error _No power A17 Established date Revised date Error symptom Content LCD TV A17 ST BY condition Red Power ON condition white Front LED control Menu Æ Option Æ Power Indicator Æ Standby light ON LX6500 LX9500 ...

Page 103: ...ed date Error symptom Content LCD TV A18 Check the 3 5V when st by Pin layout 24P 1 Power on 2 24V IOP Edge 55 20V Edge 42 47 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 NC 17 12V 18 Inverter ON 19 12V 20 LE NC IOP PWM Dim 1 21 12V 22 LE PWM Dim 1 IOP NC 23 NC 24 Error out IOP 47 Edge LED 55 Edge LED 42 47 For 10 models there is no voltage out for st ...

Page 104: ... error _No power A19 Established date Revised date Error symptom Content LCD TV A19 Check power on pin is high Pin layout 24P 1 Power on 2 24V IOP Edge 55 20V Edge 42 47 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 NC 17 12V 18 Inverter ON 19 12V 20 LE NC IOP PWM Dim 1 21 12V 22 LE PWM Dim 1 IOP NC 23 NC 24 Error out IOP 47 Edge LED 55 Edge LED 42 47 I...

Page 105: ...y method 1 Press the IN START button of the remote controller for adjustment 2 Check the entry into adjustment item 3 Standard Repair Process Detail Technical Manual POWER 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 A22 ...

Page 106: ...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 Standard Repair Process Detail Technical Manual 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 A24 ...

Page 107: ...he Chik Chik sound when you touch the GND and output terminal the speaker is normal 0 LX65 95 1 2 Only LX95 Standard Repair Process Detail Technical Manual 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 symptom Content LCD TV A25 Edge LED 42 47 Pin layout 24P 1 Power on 2 24V IOP Edge 55 20V Edge 42 ...

Page 108: ...ower is in ON condition it is normal when the Analog Tester needle moves slowly and defective when it does not move at all Standard Repair Process Detail Technical Manual Remote controller operation checking method D Function error_ No response in remote controller key error LX6500 A27 Established date Revised date Error symptom Content LCD TV A27 1 2 P8200 1 SCL 2 SDA 3 GND 4 KEY1 5 KEY2 6 St 3 3...

Page 109: ...ote controller 3 Adjust sequence Press the adj key select V COM 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 to finish V COM adjustment A28 ...

Page 110: ...9 Established date Revised date Error symptom Content LCD TV A29 Change the 3D Glasses ok Check 3D_SYNC Line Main P7800 49pin Formatter P802 2pin Check 3D Emitter of Main P6900 1pin 5V Check Q906 7 of Formatter B D Maybe FPGA or FRC has problems Replace It or 3D Formatter B D Replace 3D Glasses Check 3D Emitter of IR Assy 1pin 5V Replace 3D Emitter Assy ok No Replace Q906 7 of Formatter B D ok No ...

Search results

Summary of Contents for 55LX9500

Reviews:

Related manuals for 55LX9500

Brands by name

Popular brands

LG 55LX9500, Service Manual

Search results

Summary of Contents for 55LX9500

Reviews:

Related manuals for 55LX9500

Brands by name

Popular brands