Sunday, September 18, 2016

LG TCON board – Troubleshooting - LC260W01-A5 (6870C-0011D) - LC260WX2 (6870C-0036D) - LC260WX2-SLB3 (6870C-0079C) - LC300W01-A3 (6870C-0002C)– LED LCD television repair and service – Tech Troubleshooting– LED LCD television repair and service – Tech Troubleshooting

Category: LED LCD Television repair and service 

Contents of this article 

  • How to identify  faults
  • What to replace 
  • Working voltage of TCON

LG - LC260W01-A5 (6870C-0011D) - LC260WX2 (6870C-0036D) - LC260WX2-SLB3 (6870C- 0079C) - LC300W01-A3 (6870C- 0002C)

A)T-con Board: LC260W01-A5 (6870C-0011D)
LCD Panel Model: 26 inches
Note: Vcc input= 12V
1) U2= EL53241REZ.
If this IC failed, it will cause the TV No Display or Display Abnormal Color problem.
2) UC1= TL2223PC.
If this IC failed, it will cause the TV No Display, Full Screen of Vertical Lines/Bars or Display Distortion problem.
3) This is a DC-DC circuit PCB Board. If this small PCB malfunction, it will cause the TV No Display.
B) T-con Board: LC260WX2 (6870C-0036D)
LCD Panel: 26 inches Panel
Note: Vcc input= 12V
1) U7 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
2) U1= R8A00011FT
If this IC failed, it will cause the TV No Display or Rainbow Display on the Screen.
3) U2= LPL1544.
If this IC failed, it will cause the TV No Display.
4) US1= LM2716MT
Power management IC. If this IC failed, it will cause the TV No Display.
C) T-con Board: LC260WX2-SLB3 (6870C-0079C)
LCD Panel: 26 inches
Note: Vcc input= 12V
1) U10= EPM3064A.
If this IC failed, it will cause the TV No Display.
2) U6 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
3) UC1= TL22710D.
If this IC failed, it will cause the TV No Display, Display Distortion or Rainbow Display on the Screen problem.
4) U9= TPS65160
Power management IC (DC-DC circuit IC). If this IC failure, it will cause the TV No Display.
D) T-con Board: LC300W01-A3 (6870C-0002C)
LCD Panel: 30 inches
Note: Vcc input= 12V
1) UC1= KZ4E099E12.
If this IC failed, it will cause the TV No Display or White Screen problem.
2) This is a DC-DC circuit PCB board.
If this PCB board malfunctions it will cause the TV No Display.
3) CN7 is a cable connector.
If this connector or the cable contact not properly inserted or the connector solder pins dry joins, it will causing the display flickering or sometime No Display.