LG 55EC9300 Repair Manual Download

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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

2013.01.31

date

Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2 Aft

l fi

th MAIN BOARD

2. After measuring each voltage from power supply, finally replace the MAIN BOARD.

LGE Internal Use Only

Summary of Contents for 55EC9300

Page 1: ...Printed in Korea P NO MFL68260402 1409 REV00 샤 시 명 EA42D 모 델 명 55EC9300 55EC9310 55EC9300 NA 55EC9310 NB 주 의 제품을 점검하시기 전에 이 책자의 안전수칙을 잘 읽어보시고 조작하시기 바랍니다 OLED TV Internal Use Only 55EC9300 55EC9310 ...

Page 3: ...한쪽의 리드 를 노출된 금속 즉 안테나 스크류 가변 조정기의 축 등에 접촉 시켜서 측정한다 노출된 금속부분이 샤시에 접속된 경우 및 노출 된 금속부분이 샤시에 접속되어 있지 않을 경우의 저항치가 무한 대 이어야 한다 누설 전류 HOT CHECK 1 전원 플러그를 전원에 직접 연결한다 이때 시험을 하는 동안 절연트랜스는 사용하지 않는다 2 1 0KΩ 10W 저항의 한쪽을 수상기의 노출된 금속부에 연결하 고 다른 한쪽은 접지 수도 파이프 등 접지가 양호한 장소 시킨 다 그림참조 3 AC 전압계 1000Ω VOLT 또는 그 이상 민감한 것 를 사용하여 저 항 양단간의 전압을 측정한다 4 수상기의 각 노출된 부위의 전압을 각각 측정한다 5 전원 플러그를 바꾸어 꽂고 극성반대 상기 측정을 반복한다 6 어떤 지점에서도...

Page 4: ...사양과 성능에는 BOM에 따른 부품 번호별 그림과 사양이 함께 표시됩니다 5 수신기는 조정되기 전에 약 20분 동안 작동되어야 합니다 3 테스트 방법 1 성능 LGE TV 테스트 방법 준수 2 기타 필수 사양 안전 UL CSA CE IEC 사양 EMC FCC ICES CE IEC 사양 Wireless Wireless HD 사양 옵션 4 일반 규격 No 항 목 사 양 비 고 1 지역 1 대한민국 2 방송 시스템 1 ATSC NTSC M 3 수신 시스템 1 ATSC NTSC M 4 가용 채널 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5 CADTV 01 135 5 입력 전압 AC 100 240V 60Hz AC 220 240V 60Hz on the label Kore...

Page 5: ...4 1920 1080 33 71 29 97 74 176 HDTV 1080P No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed HDMI PC DDC 1 640 350 31 468 70 09 25 17 EGA Х 2 720 400 31 469 70 08 28 32 DOS O 3 640 480 31 469 59 94 25 17 VESA VGA O 4 800 600 37 879 60 31 40 00 VESA SVGA O 5 1024 768 48 363 60 00 65 00 VESA XGA O 6 1152 864 54 348 60 053 80 00 VESA O 7 1280 1024 63 981 60 020 108 00 VESA SXGA O 8 1360 768...

Page 6: ...andatory Frame Packing 2 1280 720p 44 96 45 00 59 94 60 00 74 18 74 25 Mandatory Top Bottom 3 1920 1080i 33 72 33 75 59 94 60 00 74 18 74 25 Mandatory Side by Side Half 4 1920 1080p 43 94 54 00 23 97 24 00 148 35 148 50 Mandatory Frame Packing 5 1920 1080p 26 97 27 00 23 97 24 00 74 18 74 25 Mandatory Top Bottom 6 1280 720p 44 96 45 00 59 94 60 00 74 18 74 25 Primary Side by Side Half 7 1920 1080i...

Page 7: ...9 1920 1080p 26 97 27 00 23 97 24 000 148 35 148 50 Side by Side Full 30 1920 1080p 67 432 67 50 29 976 30 00 148 35 148 50 Line Alternative 31 1920 1080p 33 716 33 75 29 976 30 00 148 35 148 50 Side by Side Full 32 720 480p 62 938 63 00 59 94 60 00 54 00 54 054 16 9 Line Alternative 33 720 480p 31 469 31 50 59 94 60 00 54 00 54 054 16 9 Side by Side Full 34 720 480p 62 938 63 00 59 94 60 00 54 00...

Page 8: ...20 1080 33 75 30 000 74 25 HDTV 1080p Side by Side Top Bottom Checkerboard Single Frame Sequential Row Interleaving Column Interleaving Photo Side by Side Top Bottom No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 1280 720 44 96 59 94 74 176 HDTV 720P Side by Side Top Bottom 2 1920 1080 33 75 60 00 74 25 HDTV 1080I Side by Side Top Bottom 3 1920 1080 33 72 59 94 74 176 HDTV 10...

Page 9: ...DMI 위의 조정 항목은 필요한 경우 최종 조립에서 수행할 수도 있습니다 보드 레벨 및 최종 조립 조정 항목은 In Start 메뉴에서 확인할 수 있습니다 1 조정 확인 3 2 총조 조정 1 화이트 밸런스 조정 2 RS 232C 기능 검사 3 목적지별 출고 시 옵션 설정 4 Ship out 모드 설정 In Stop 5 GND 및 HI POT 테스트 3 3 부록 1 도구 옵션 메뉴 USB 다운로드 소프트웨어 업데이트 옵션 및 서비스 전용 2 ADC 보정과 화이트 밸런스 수동조정 3 Ship out 모드조건 사전 설정 CH 정보 4 메인 PCBA 조정 4 1 ADC 보정 MAIN SOC LGExxxx 가 IC 메이커에서 보정되기 때문에 ADC 보정은 필요하지 않습니다 수동으로 조정해야 할 경우 부록을 참조하십시...

Page 10: ...가 실패하면 NG가 표시됩니다 5 다운로드가 실패하면 다시 시도하십시오 주의 EDID 다운로드 시 RGB HDMI 케이블을 제거해야 합니다 4 4 4 EDID 데이터 4 4 4 1 3D_10bit_DTS KR _ xvYCC off 참조 HDMI1 HDMI4 아래 EDID 데이터는 소프트웨어 또는 입력모드에 따라 다를 수 있습니다 ⓐ 제품 ID HEX EDID 표 DDC 기능 0001 0100 아날로그 0001 0100 디지털 ⓑ 시리얼 번호 생산 라인에서 제어 ⓒ 월 년도 생산 라인에서 제어 ex 월 01 01 년 2014 18 ⓓ 모델 이름 Hex LGTV Chassis MODEL NAME HEX EA42D 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 ⓔ...

Page 11: ...니다 3 에이징 시간 에이징 시작 후 5분 동안 전원 켜짐 상태를 유지하십시오 LCD의 경우 신호 없음 또는 전체 화이트 패턴을 사용하여 백라이트가 켜져 있는지 확인해야 합니다 5 1 2 장비 1 색상 분석기 CA 210 NCG CH 9 WCG CH12 LED CH14 OLED CH 17 2 조정 컴퓨터 자동 조정 중에 RS 232C 프로토콜 필요 3 조정 리모컨 4 비디오 신호 생성기 MSPG 925F 720p 204 회색 모델 217 패턴 49 색상 분석기 매트릭스를 보정할 때에는 CS 1000을 사용해야 합니다 5 1 3 장비 연결 5 1 4 조정 명령 프로토콜 1 자동 조정 중에 사용되는 RS 232C 명령 ㅉRS 232C 명령 설 명 CMD DATA ID Wb 00 00 화이트 밸런스 조정 시작 W...

Page 12: ... 없이 화이트 밸런스를 조정하기위해 192 지정된 값 에 W gain을 고정시켜고 나머지 것들은 감소키세요 3 조정 모드 모드 Warm 5 1 6 참조 화이트 밸런스 조정 좌표 및 색상 온도 휘도 204 회색 80IRE CS 1000 26인치 이상 을 사용하는 표준 색상 좌표 및 온도 5 1 7 참조 화이트 밸런스 조정 좌표 및 색상 온도 휘도 204 회색 80IRE CS 1000 26인치 이상 을 사용하는 표준 색상 좌표 및 온도 Mode Coordinate Temp uv X Y Cool 0 277 0 278 11 000K 0 0030 Medium 0 285 0 293 9300K 0 0000 Warm 0 313 0 329 6500K 0 0030 CA 210 CH 17 을 사용하는 표준 색상 좌표 및 온도 ...

Page 13: ...00 또는 MSPG 6100 HDMI 1 4 지원 2 패턴 HDMI 모드 모델 번호 872 패턴 번호 83 5 5 2 테스트 방법 1 Fig 1과 같은 입력 3D 테스트 신호 2 3D 입력 OSD가 표시되면 OK 키를 누릅니다 3 그림 2와 같이 3D 안경을 착용하지 않고 패턴을 확인합니다 3D 안경 없는 3D 모드 Fig 2 3D 안경없이 3D 모드에서 OK Fig 3 3D 안경없이 3D 모드에서 NG 5 6 HDMI ARC 기능 검사 5 6 1 테스트 장비 광학 수신기 스피커 MSHG 600 SW 1220 HDMI 케이블 1 4 버전용 5 6 2 테스트 방법 1 마스터 장비 HDMI1 에서 HDMI ARC 포트에 HDMI 케이블을 삽입합니다 2 TV에서 나오는 음성을 체크합니다 3 스피커에서 나오는 음성...

Page 14: ... 케이블 및 신호 케이블 삽입 조건을 확인합니다 7 2 GND 및 내부압력 자동 검사 1 팰릿이 스테이션으로 이동됩니다 전원 코드 AV 코드가 단단히 꽂혀 있음 2 AV 잭 테스터를 연결합니다 3 컨트롤러 GWS103 4 가 켜집니다 4 GND 테스트 자동 테스트에 실패하면 부저음이 작동합니다 테스트를 통과하면 다음 프로세스를 실행합니다 Hi pot 테스트 A V 잭함에서 A V 코드 제거 5 HI POT 테스트 자동 테스트에 실패하면 부저음이 작동합니다 테스트를 통과하면 GOOD 램프가 켜지고 자동으로 다음 프로세스로 이동됩니다 7 3 확인 사항 1 테스트 전압 GND 100mA에서 1 5KV 분 신호 100mA에서 3KV 분 2 테스트 시간 1초 3 테스트 포인트 GND 테스트 POWER CORD GND...

Page 15: ...동하지 않습니다 그렇지 않은 경우 USB 데이터가 자동으로 검색됩니다 3 메모리에서 파일을 복사하는 중 메시지를 표시합니다 4 업데이트가 시작됩니다 5 업데이트가 완료되면 TV가 자동으로 다시 시작됩니다 6 TV가 켜져 있으면 업데이트된 버전 및 도구 옵션을 확인합니다 다음 단계에서 도구 옵션에 대한 설명 제공 다운로드 중인 버전이 TV에 있는 버전보다 높은 경우 TV의 모든 채널 데이터가 모두 손실될 수 있습니다 이 경우 채널 복구를 수행해야 합니다 모든 채널 데이터가 지워지면 생산 라인에서 DTV ATV 테스트를 하지 않은 것이 됩니다 다운로드한 후에 도구 옵션 설정이 다시 필요합니다 1 서비스 리모컨에서 IN START 키를 누릅니다 2 Tool Option 1 을 선택하고 OK 버튼을 누릅니다 3 해...

Page 16: ...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 A10 AG1 Set Stand A22 200 530 540 400 121 902 901 120 900 502 500 501 510 571...

Page 17: ...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 18: ...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 TP_DVB_DATA1 ...

Page 19: ...AD_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 68pF 50V INT_ADEMOD R360 33 IF_N AUAD_R_CH3_IN CK _HDMI2 HP_ROUT_MAIN SMARTCAR...

Page 20: ..._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 21: ...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 22: ...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 23: ...PCM_OE R722 10K CI AR713 33 CI CI_IN_TS_DATA 5 CI_TS_DATA 0 AR711 33 CI CI_TS_DATA 1 TPO_VAL TPI_DATA 1 PCM_IORD CI_IN_TS_DATA 0 7 CI_CD1 CI_ADDR 13 CI_TS_DATA 0 CI_ADDR 5 AR704 100 CI EB_DATA 0 7 CI_IN_TS_DATA 1 R725 10K CI AR710 33 CI CI_ADDR 4 TPO_CLK C706 0 1uF 16V CI CAM_CD2_N CI_ADDR 0 CI_ADDR 6 CI_IN_TS_VAL PCM_WAIT 5V_NORMAL CI_DATA 0 7 R707 10K CI CI_IN_TS_DATA 0 CI_TS_DATA 1 CI_ADDR 9 CI...

Page 24: ... 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_OPT_0 X300...

Page 25: ...5 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 DDC_DATA 7 D0 6 D1 15 DDC_CLK R3261 0 VA3209 ESD_HDMI D3203 A2 C A1 D0 _HDMI1 R3255 0 1 16W 5 OPT CK _HDMI4 D0 _HDMI2 CK _HDMI2 C3223 0 047uF 25V R3204 100K D1 _HDMI4 D0 _HDMI2 HDMI_HPD_4 R...

Page 26: ... R3302 33 DDC_SCL_3 5V_HDMI_3 VA3301 ESD_HDMI CEC_REMOTE D2 _HDMI3 DDC_SDA_3 D1 _HDMI3 CK _HDMI3 D0 _HDMI3 DDC_SDA_3 5V_HDMI_3 R3304 5 1K R3303 10 C3301 1uF 10V 5V_HDMI_3 5V_HDMI_3_SOC AR3301 33 1 16W AR3302 47K 1 16W JK3301 DAADR019A EAG63530101 14 ARC 13 CE_REMOTE 5 D1_GND 20 BODY_SHIELD 12 CK 11 CK_GND 2 D2_GND 19 HP_DET 18 5V 10 CK 4 D1 1 D2 17 GND 9 D0 8 D0_GND 3 D2 16 DDC_DATA 7 D0 6 D1 15 D...

Page 27: ... HP_OUT JK3602 PEJ038 4G6 3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6 R3612 0 IR_Bla M_REMOTE_TX DOUT1 3 3V_NORMAL SPDIF_OUT HP_LOUT JK3604 PEJ038 3B6 EAG61030009 HP RS232 3 DETECT 4 L 5 GND 1 R IRB_3 3V R3610 100 HP_OUT 3 3V_NORMAL VA3608 5 5V JK3601 PEJ038 4Y6 3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6 R3607 33 R3601 33 C3605 0 047uF TP3601 JK3603 JSTIB15 C GND B VCC A VIN 4 SHIELD VA3609 5 6V HP_OUT COMP2_Y_I...

Page 28: ..._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 29: ...EU SC_G SC_FB JK4600 DA1R018H91E EU 1 AUDIO_R_OUT 2 AUDIO_R_IN 3 AUDIO_L_OUT 4 AUDIO_GND 5 B_GND 6 AUDIO_L_IN 7 B_OUT 8 ID 9 G_GND 10 G_OUT 11 R_GND 12 R_OUT 13 RGB_IO 14 SYNC_GND 15 SYNC_OUT 16 SYNC_IN 17 COM_GND 18 AV_DET 19 SHIELD C4601 1000pF 50V EU C4604 0 1uF EU VA4609 5 5V EU SC_CVBS_IN VA4604 5 5V EU VA4601 5 6V EU SC_DET R8904 75 1 16W EU VA4610 5 5V EU SC_L_IN L4601 BLM18PG121SN1D EU SC_...

Page 30: ...OF THE SCHEMETIC VA5102 5 5V ESD_LAN C5103 0 01uF 50V EPHY_RDP VA5101 5 5V ESD_LAN C5100 0 1uF 16V C5102 0 1uF 16V C5101 0 01uF 50V VA5103 5 5V ESD_LAN LAN_JACK_POWER VA5100 5 5V ESD_LAN EPHY_RDN EPHY_TDP EPHY_TDN JK5100 BS R570098 1 R1 2 R2 3 R3 4 R4 5 R5 6 R6 7 R7 8 R8 12 SHIELD 9 R9 11 R11 10 R10 GND D1 YL_C D2 YL_A D3 GN_C D4 GN_A PAGE 16 Ethernet Block Copyright ⓒ 2014 LG Electronics Inc All ...

Page 31: ...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 32: ... C6008 1uF 25V EU R6010 470K OPT L6000 EU C6000 1uF 25V EU DTV MNT_L_OUT R6003 10K EU C6002 6800pF OPT SCART_ROUT C6004 0 1uF 50V EU C6003 33pF EU DTV MNT_R_OUT R6000 2 2K EU SCART_MUTE IC6000 AZ4580MTR E1 EU 3 IN1 2 IN1 4 VEE 1 OUT1 5 IN2 6 IN2 7 OUT2 8 VCC R6013 1K EU Q6002 1 PDTA114ET EU_SCART_MUTE_NXP E B C R6008 33K EU DTV MNT_R_OUT Q6000 MMBT3904 NXP EU E B C C6007 6800pF OPT 12V R6011 2 2K ...

Page 33: ...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 34: ...FACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC R6218 10K CI C6211 0 1uF 50V IC6200 AP2151WG 7 CI 3 FLG 2 GND 4 EN 1 OUT 5 IN R6219 10K CI C6210 1uF 25V CI R6217 100 CI PCM_5V_CTL 5V_CI_ON 5V_NORMAL PAGE 21 CI POWER ENABLE CONTROL Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 35: ...K C6302 0 1uF 16V JAPAN R6311 22 JAPAN R6312 10K JAPAN R6306 OPT AR6300 33 JAPAN L6301 BLM18PG121SN1D JAPAN R6304 2 7K JAPAN SMARTCARD_DET SD_EMMC_DATA 3 C6306 0 1uF 16V JAPAN R6314 1K JAPAN L6300 BLM18PG121SN1D JAPAN C6303 0 1uF 16V JAPAN C6300 0 1uF 16V JAPAN 3 3V_NORMAL R6319 1 2K OPT R6313 75 JAPAN R6318 1 2K OPT SMARTCARD_PWR_SEL SD_EMMC_DATA 1 IC6300 TDA8024TT JAPAN 3 5V 3V 2 CLKDIV2 4 PGND ...

Page 36: ...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 37: ...ATA 5 TU_SIF_TU FE_DEMOD1_TS_VAL TU_GND_B FE_DEMOD1_TS_DATA 0 FE_DEMOD1_TS_DATA 0 L6502 BLM18PG121SN1D FE_DEMOD1_TS_VAL FE_DEMOD2_TS_ERROR FE_DEMOD1_TS_SYNC 2 5V_DEMOD LNB_TX 2 5V_NORMAL C6508 0 1uF TU_GND_B C6801 1000pF 630V TU_M W_EU AJ TW BR CN R6802 0 TU_M R6803 0 TU_M R6804 0 TU_W R6805 0 TU_W R6801 0 TU_M W_TW BR CN R6702 10 TU_M_EU AJ KR US R6801 1 22 TU_M_EU AJ R6702 1 0 TU_M_CN TU6701 1 T...

Page 38: ...230LSFT1G LNB_ONSEMI LNB_TX R6904 0 3 3V_NORMAL R6902 33 LNB R6901 33 LNB I2C_SCL4 D6902 30V LNB_ONSEMI I2C_SDA4 IC6900 A8303SESTR T LNB 1 VCP 3 NC_1 7 SCL 9 ADD 10 TONECTRL 11 TCAP 12 ISET 13 VREG 14 GND 15 VIN 16 LX 17 GNDLX 18 NC_2 19 NC_3 20 BOOST 5 TDO 8 SDA 6 IRQ 4 TDI 2 LNB 21 EP GND C6901 33pF LNB R6907 3 3K LNB_DMB C6902 0 22uF 25V LNB R6906 1 0 LNB_ALEGRO C6910 0 1uF 50V LNB R6906 10K LN...

Page 39: ... 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 40: ...U C315 4 7uF EU R319 75 1 EU 1005 C307 10pF 50V OPT COMP1_Y_IN_SOC SC_ID SC_L_IN R339 100K EU SC_CVBS_IN_SOY R320 10K 1 EU SC_B R316 2 7K EU L302 EU 1uH C362 0 1uF EU R302 75 EU SC_ID_SOC C363 0 1uF EU AUAD_R_CH2_IN SC_CVBS_IN C329 2 2uF 10V EU C320 0 047uF EU SC_CVBS_IN_SOY SC_R R331 33 EU AUAD_L_CH2_IN R313 75 1 EU 1005 3 3V_NORMAL C326 0 047uF EU COMP1_PB_IN_SOC DTV MNT_V_OUT_SOC C327 1000pF EU...

Page 41: ...43 NC 44 NC 45 NC 46 NC 47 NC 48 NC 49 NC 50 NC 51 NC 52 GND TXACLKN TX8N C11407 0 1uF TXA2N TX9N I2C_SDA1 INV_CTL R11403 10K LVDS_BIT_SEL_LOW R11408 0 PANEL_VCC C11404 0 1uF TXA2P TX9P T_CON_SYS_POWER_OFF I2C_SCL1 TXA3P TX7P T_CON_SYS_POWER_OFF R11405 220 2D 3D_CTL LED_R TXACLKP TX8P TXB1N TX4N GST_SOC TXBCLKN TX2N TXB4P TX0P GCLK_SOC TXB4N TX0N TXBCLKP TX2P TXB3P TX1P TXB1P TX4P TXB3N TX1N TXB2P...

Page 42: ...320EFJ DEV_BD9D320EFJ_E2 3 VREG 2 FB 4 SS 1 EN 5 GND 6 SW 7 BOOT 8 VIN 9 EP FIN R2330 0 5 P_DET_3 5V C2356 0 1uF 50V OPT C2365 0 1uF 16V 3 3V_NORMAL USB_OCD2 10uF C2327 10V R2353 100K 1 16W 5 C2318 22uF 10V 1 5V_DDR 3 5V_ST L2309 2 2uH NR5040T2R2N 2 5V_NORMAL R2305 22K 1 16W 1 L2301 2uH C2328 10uF 16V C2334 0 0068uF 50V PANEL_20V R2340 16K 1 12V DVDD18_EMMC L2303 UBW2012 121F C2323 0 1uF 16V C2307...

Page 43: ... NXP E B C D11601 RCLAMP0502BA OPT C11609 22uF 10V R11603 100 BT_RESET 3 5V_ST KEY1 C11604 100pF 50V 3 5V_ST P11601 SMAW200 H18S5 14 KEY2 9 SDA 4 USB_DM 18 GND 13 GND 8 GND 3 BT_RESET 17 LOGO 12 KEY1 7 WOL 2 3 5V_WOL 16 3 5V_ST 11 SCL 6 USB_DP 1 GND 15 IR 10 GND 5 NC 19 GND 3 5V_ST KEY2 R11611 22 WIFI_DP C11607 0 1uF R11606 10K 5 R11601 10K OPT C11610 0 1uF OPT R11617 100 R11602 10K EYE_SCL R11604...

Page 44: ...821 100 RS232C R6820 100 RS232C C6810 0 1uF RS232C C6813 0 1uF RS232C 3 5V_ST SOC_RX C2809 0 1uF RS232C ZD6803 20V ADUC 20S 02 010L OPT 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 ZD6802 ADUC 20S 02 010L 20V OPT JK4303 KJA PH 1 0177 3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6 SOC_TX RS 232C Control INTERFAC...

Page 45: ...AL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC USB_DP3 C11806 10uF 10V 5V_USB_2 JK4302 3AU04S 305 ZC LG 1 2 3 4 5 USB_DP2 USB_DM2 ZD4300 5V ESD_USB23 5V_USB_3 C11812 10uF 10V USB3 D11801 RCLAMP0502BA D11802 RCLAMP0502BA JK4300 3AU04S 305 ZC LG USB3 1 2 3 4 5 ZD4301 5V ESD_USB23 USB_DM3 MID_LG1311 1 2013 04 03 USB 2 3 MAX 1 5A USB2 MAX 1 5A PAGE 13 USB3 Copyright ⓒ 2014 LG Electronics Inc All ri...

Page 46: ... OUT2B 19 PVDD2B 20 PVDD2A 21 OUT2A 22 PGND2A 23 BST2A 24 VDR2 25 AGND 26 NC_4 27 VDR1 28 BST1B 29 PGND1B 30 OUT1B 31 PVDD1B 32 PVDD1A 33 OUT1A 34 PGND1A 35 BST1A 36 RESET 37 AD 38 CLK_I 39 GND_IO 40 VDD_IO 41 EP GND AMP_RESET_N C11912 22000pF 50V R11907 3 3 1 10W 0 1uF C11921 50V AMP_MUTE AUD_MASTER_CLK R11905 100 AMP_MUTE_PWR_DET 10uF C11910 35V R11912 4 7K C11919 0 47uF 50V L11903 NRS6045T100MM...

Page 47: ...3 1 10W C12001 1uF 10V SPK_L SPK_TW_R I2C_SCL1 SPK_L C12012 390pF 50V JP5607 R12008 3 3 1 10W AUD_LRCH R12001 100 0 1uF C12005 16V 24V_TWEETER_AMP 24V R12003 4 7K TWEETER_RESET C12003 33pF 50V SPK_L 24V_TWEETER_AMP C12017 1uF 10V SPK_TW_L AUD_SCK R12002 100 L12006 NRS6045T100MMGK 10 0uH JP5608 C12002 1uF 10V L12003 NRS6045T100MMGK 10 0uH C12010 22000pF 50V C12015 390pF 50V 0 1uF C12022 50V C12019 ...

Page 48: ...55EC9300 55EC9310 ...

Page 49: ...ED TV Repair Guide 14 years New Models 14 years New Models Applicable Model 55EC9300 UA Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 51: ... Spk To PSU Module FFC 1 1 MAIN SOC DDR Memory EMMC Memory 2 Micom for Key IR sensing 3 Audio AMP WIFI BT Combo Jog Key IR Color sensor 2 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 52: ...o AMP Front M14 HDMI1 HDMI2 HDMI4 HDMI MUX 51P MCX cable I2S Out I2C 1 Vby1 ARC S I D E I2C1 OCP 1A MHL HDMI3 LGD T CON I2C 1 H P Line Out COMP R E A AMP ST YPbP r CVBS RGB BLUTOOTH WIFI USB_WIFI BT IR Bla Ready CVBS AV Audio AMP Tweeter OPTIC LAN A R CVBS RGB SPDIF OUT ETHERNET IR KEY EYE WIFI LOGO LIGHT SUB ASSY IR LAN PHY X_TA I2C Sub Micom RENESAS R5F1000G X_TAL 32 768KH I2C 3 KEY _ L 25MH z P...

Page 53: ...T CON IC5600 NTP7514 FRONT IC103 NVRAM I2C_SDA5 I2C_SCL5 33Ω IC5600 NTP7514 FRONT 0x54 Fast Mode 370kHz IC5601 NTP7514 TWEETER 0x56 100Ω 100Ω 3 3V_NORMAL 3 3KΩ IC3000 33Ω I2C_SDA_MICOM_SOC I2C_SCL_MICOM_SOC 100Ω 3 5V_ST 3 3KΩ IC3000 Renesas MICOM 0x52 Standard Mode 50kHz EYE_SDA EYE_SCL IR KEY EYE Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Int...

Page 55: ...RESET 6dB TR AMP AK29 AAD ADC OUT M_DIF_P 6 AK28 DMD_ADC_INP IF_P IF N LPF LPF 6dB TR AMP AK27 DMD_DAC_OUT AL27 CVBS_IN1 AK29 AAD_ADC_OUT AL30 DMD_SIF_OUT SoC_CVBS_OUT DMD_SIF_OUT M_DIF_N 7 S_SIF 9 S_CVBS 8 AL28 DMD_ADC_INN AK29 DMD_ADC_SIF AL27 CVBS_IN1 AM29 IFAGC IF_N TUNER_SIF for T2 C S TU_CVBS for T2 C S IF_AGC M_DIF_IFAGC 3 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for trai...

Page 56: ...DVI_L_IN PR2_IN AUDA_L_CH3_IN COMP2_PR_IN_SOC AUAD_L_CH3_IN AV1_CVBS AV1_CVBS_SOC AV1_CVBS_SOC JK340 2 IC101 M14 COMP1 AV1 DVI_R_IN AUDA_R_CH3_IN AUAD_R_CH3_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_I_INN AAD_ADC SIF Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ...DCLK_OUT LPF SPEAKER_L SPEAKER_R LPF IC101 M14 SCL0 I2C_SCL1 AMP_MUTE GPIO21 AMP_RESET_N Tweeter_L Tweeter_R LPF 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 K 4 1 JK3403 HP_L ROUT_AMP JK3401 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only fo...

Page 58: ...DDC_SCL_3 DDC_SDA_3 TMDS Link 8bits HDMI HPD HDMI2 HDMI2 HDMI3 HDMI3 TMDS Link 8bits DDC_SCL_4 DDC_SDA_4 TMDS Link or MHL Link HDMI_HPD M HDMI4 HDMI4 with MHL with MHL Q3001 5V_HDMI_4 OCP 5V_NORMAL HDMI_HPD RENESAS MICOM HDMI_CEC X tal 32 768kHz MHL_DET Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ...1 4lane 10bit FHD 120 HZ Pin map Coupling cap Coupling cap 2 2 2 YUV444 p IC101 2 THCV22 HTPDN IC101 6 VBY1 Rx LOCKN LOW I2C SDA1 I2C SCA1 I2C SDA1 LGD T CON Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 60: ... USB2_1_DP0 USB2_1_DM0 USB HUB IC4200 USB_HUB_DM2 USB_HUB_DP3 USB_HUB_DM3 Camera wafer 5V_NORMA L 3 5V_USB_3 USB_CTL 3 USB_OCD3 USB3 EB_CS1 EB_CS0 IC4200 USB_HUB_DP2 _ _ WIFI BT_DM WIFI BT_DP EYY_SCL EYE_SDA USB2_0_DP0 USB2_0_DM0 WIFI BT IR KEY EYE LOGO_LIGHT IR KEY2 IC101 Micom KEY1 LOGO_LIGHT LOGO WOL CTL WOL Power control IC5201 M14 IC5201 Copyright ⓒ 2014 LG Electronics Inc All right reserved ...

Page 61: ...ection 1 55EC9300 1 Main PCB PCBs 2 2 PSU 3 WIFI BT Combo ASSY 1 4 IR Logo PCB 5 Joystick 5 3 4 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 62: ...nd Module supply voltage A Video error_No video Normal audio LCD TV 2013 01 31 date CHECK the vby1 LED and Module supply voltage Red LED signal means video output is good Check the Module supply voltage 24V A1 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ... White Balance of item 6 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 9 A2 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 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 Elec...

Page 64: ...o lag stop A3 Established date Revised date Error symptom Content LCD TV 2013 01 31 date Settings Æ Channel Æ Manual Tuning Æ select channel When the signal is strong use the attenuator 10dB 15dB 20dB etc A3 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ...shed date Revised date Error symptom Content LCD TV 2013 01 31 1 Checking method for remote controller for adjustment date Version Press the IN START with the remote ess t e S t t e e ote controller for adjustment A4 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ...2013 01 31 date Checking method 1 Check the signal strength or check whether the screen is normal when the external device is connected 2 Aft i h lt f l fi ll l th MAIN BOARD 2 After measuring each voltage from power supply finally replace the MAIN BOARD A5 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ... bar residual image light spot A6 Established date Revised date Error symptom Content LCD TV 2013 01 31 g date As the part connecting to the external input check the screen condition by signal A6 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ...deo error_Color error A7 Established date Revised date Error symptom Content LCD TV 2013 01 31 date Check the contact condition of the Link Cable especially dust or mis insertion A7 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ...2013 01 31 date You can view 6 types of patterns using the ADJ Key You can view 6 types of patterns using the ADJ Key Checking item 1 Defective pixel 2 image stickying 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A8 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 70: ...e Dim Brightness difference Crosstalk Crosstalk Press damage Un repairable Cases In this case please exchange the module Burnt A 1 2 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ...noise Half dead Brightness difference Un repairable Cases Green Noise on power on off time Line Defect g In this case please exchange the module Mura A 2 2 u a Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 72: ...ised date A18 Error symptom Content Check power input voltage and ST BY 3 5V B Power error _No power LCD TV 2013 01 31 date Check the DC 24V 12V 3 5V A18 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 73: ...ished date Revised date Error symptom Content LCD TV 2013 01 31 g date Entry method 1 Press the IN START button of the remote controller for adjustment controller for adjustment 2 Check the entry into adjustment item 3 A19 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 74: ...Revised date Error symptom Content LCD TV 2013 01 31 g date Checking method 1 Press the Setting button on the remote controller 2 Select the Sound function of the Menu 3 Select the Sound Setting 4 Select TV Speaker 4 Select TV Speaker A20 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 75: ...n 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 the Chik Chik sound when you touch the GND and output terminal the speaker is normal A21 Copyright ⓒ 2014 LG Electronics Inc All right rese...

Page 76: ... Revised date Error symptom Content LCD TV 2013 01 31 Remote controller operation checking method date Checking order 1 2 Check Touch cable condition between IR Main board 3 Check the st by 3 5V on the terminal A22 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 77: ...t LCD TV A23 D Function error 2013 01 31 p g date Wifi BT Combo Checking order 1 2 Check Motion cable condition between Motion assy Main board 3 Check the 3 5V WOL on the terminal 2 3 Check the 3 5V_WOL on the terminal 2 A23 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 78: ...2013 01 31 Wifi operation checking method date Wifi BT Combo Checking order 1 2 Check the 3 5V_WOL on the terminal 2 3 Check the WIFI Channel WIFI SPEED MAC USB2 0 PASS USB1 0 FAIL 3 Check the WIFI Channel WIFI SPEED MAC USB2 0 PASS USB1 0 FAIL Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 79: ...ing method A25 Established date Revised date Error symptom Content LCD TV D Function error 2013 01 31 Camera operation checking method date 55EC93 NO Camera Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 80: ...uto on off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 Remote control Local switch checking 10 10 D Function error MR13 operating checking 11 11 12 Wifi operating checking 12 13 Camera operating checking 13 14 External device recognition error 14 15 E Noise Circuit noise mechanical noise 15 15 E Noise Circuit noise mechanical noise 15 16 F Exterior error Ex...

Page 81: ...Power Board 24V 12V 3 5V etc Normal voltage Y N Replace T con Board or module And Adjust VCOM R i P Ch k P B d 24V t t Move to No video No audio Repair Power Board or parts Check Power Board 24V output Normal voltage Y Replace Inverter or module A18 g N Repair Power Board or parts End Precaution A4 A2 Always check record S W Version and White Balance value before replacing the Main Board Replace M...

Page 82: ...013 01 31 Normal voltage Check various voltages of Power Board 3 5V 12V 20V No Video No audio Check and replace MAIN B D Y A18 or 24V No audio MAIN B D Replace Power Board and repair t N End parts 2 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 83: ... Check whether other equipments have problem or not By connecting RF Cable at other equipment DVD Player Set Top Box Different maker TV etc A4 N Check RF Cable Connection 1 Reconnection 2 Install Booster Check S W Version SVC Bulletin Check Tuner soldering Y Y Close Normal Picture Y N A4 N S W Upgrade Replace Normal Picture N Contact with signal distributor or broadcaster Cable or Air Normal Pictu...

Page 84: ...Y Replace module Color error A7 N condition N Check error color input mode HDMI N End Y External device Cable normal External Input Component error Check external device and cable Replace Main B D N Check Test pattern A8 N Request repair for external device cable Y External device Cable normal HDMI error Check external device and cable Replace Main B D 4 Copyright ⓒ 2014 LG Electronics Inc All rig...

Page 85: ... 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 HDMI DVI Component error Check S W Version Y N Check version S W Upgr...

Page 86: ...ontrol Y operation On High Check Power cord was inserted properly Logo LED Power B D Replace Main B D A18 Stand By Red or Turn Off Operating Turn Off Measure voltage of each output of Power B D N Y Normal A18 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 6 Copyright ⓒ 2014 LG Electronics Inc All right...

Page 87: ...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 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_20V_DET Power off by AC OFF POWEROFF_RESREC Power off by Reservated Record POWERO...

Page 88: ...ser menu Speaker off Off N Y Check audio B 24 of Power Board Normal voltage Y N A20 A21 A18 Cancel OFF Replace Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End Disconnection Replace Speaker 8 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 89: ...ignal 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 exter...

Page 90: ...Check Replace Cable connection Connector solder Normal operating 3 5V On Main B D Normal Voltage Close Check 3 5v on Power B D A18 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 B D Y Replac...

Page 91: ...urn off on the set and press the wheel Check the INSTART menu RF Receiver ver is 00 00 Y A23 Normal operating Close p Battery of MR13 P Y Check Repair RF assy connection A4 operating Is show ok message N N Y Replace MR13 Press the back key about 5sec RF Receiver ver is 00 00 N Close A4 MR13 Close If you conduct the loop at 3times change the MR13 P Down load the Firmware INSTART MENUÆ02 11 Remocon ...

Page 92: ...ror A24 A4 Check the INSTART menu Wi Fi Mac value is NG Y N Check the Wifi wafer 1pin Normal Voltage Y N Replace Main B D A24 A24 Y Check Repair Wifi cable connection Close A24 Wi Fi Mac value is NG N Close A4 Change the Wifi assy Y y 12 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 93: ...ror A25 A4 Check the INSTART menu Camera Ver is NG Y N Check the Camera wafer P4200 2pin Normal Voltage Y N Replace Camera B D A25 A25 Y Check Repair Camera cable connection Close A25 Camera Ver is NG N Close A4 Change the Camera assy Y y 13 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 94: ...ation S W Version N Y Technical information Check input signal Signal input Y N External Input and Component Recognition error HDMI Replace Main B D Check and fix external device cable HDMI DVI Optical Recognition error Replace Main B D Fix in accordance with technical information 14 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only...

Page 95: ...e the description OR If there is a Tak Tak noise from the cabinet refer to the KMS fix information and Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage then proceed as shown in the solution manual For models without any fix information provide the description OR agree apply the process by stage Describe the bas...

Page 96: ...r Process 2013 01 31 Replace module Zoom part with exterior damage Module damage Cabinet damage Replace cabinet Replace remote controller Remote controller damage Stand dent Replace stand 16 Copyright ⓒ 2014 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 97: ...rror _Vertical Horizontal bar residual image light spot LCD TV connection diagram A6 8 A Video error_ Color error Check Link Cable EPI reconnection condition A7 9 Adjustment Test pattern ADJ Key A8 10 Exchange Main Board 1 A 1 5 10 Appendix Defected Type caused by T Con Inverter Module Exchange Main Board 1 A 1 5 11 Exchange Main Board 2 A 2 5 12 Exchange Power Board PSU A 3 5 13 E h M d l 1 A 4 5...

Page 98: ...hen there is 19 C Audio error_ No audio Normal video Checking method in menu when there is no audio A20 20 Voltage and speaker checking method when there is no audio A21 Remote controller operation checking 21 D Function error Remote controller operation checking method A22 22 Motion Remote operation checking method A23 23 Wifi operation checking method A24 23 Wifi operation checking method A24 24...

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