Monday, September 19, 2016

LG TCON board – Troubleshooting - LC300W01-B5 (6870C-0009C) - LC320W01-SLA1 (6870C-0142B) - LC320WX3 (6870C-0087A) - LC320WXN-SAA1 (6870C-0195A) - 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 - LC300W01-B5 (6870C-0009C) - LC320W01-SLA1 (6870C-0142B) - LC320WX3 (6870C-0087A) - LC320WXN-SAA1 (6870C-0195A)

A) LC300W01-B5 (6870C-0009C)
LCD Panel : 30 inches
Note: Vcc input= 12V
1) U8 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or Display Distortion.
2) UC1= TL22240D.
If this IC failed, it will cause the TV No Display, Display Distortion or Display Color Abnormal problem.
3) U3 & U4= BUF11702.
If this IC failed, it will cause the TV No Display.
4) This is a DC-DC PCB board.
If this small PCB board malfunction and causing no voltage output, it will cause the TV No Display problem.
B) LC320W01-SLA1 (6870C-0142B)
LCD Panel : 32 inches
Note: Vcc input= 12V
1) U10 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or White Screen problem.
2) UC1= LGDP4801A.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
3) RS1 is a Crystal.
If this component failure, it will cause the TV No Display.
4) U13= TPS65161 is a power management IC.
If this IC failed, it will cause the TV No Display
C) LC320WX3 (6870C-0087A)
LCD Panel : 32 inches
Note: Vcc input= 12V
1) U1 is an EEPROM memory IC.
If this IC failed, it will cause the TV No Display or White Screen problem.
2) UC1= KE5M3U2109.
If this IC failed, it will cause the TV No Display or White Screen problem.
3) U1= TPS65161 is a power management IC.
If this IC failed, it will cause the TV No Display.
4) Q3 (MOSFET).
If this component failure, it will cause the TV No Display.
D) LC320WXN-SAA1 (6870C-0195A)
LCD Panel : 32 inches
Note: Vcc input= 12V
1) U6:
If this IC failed, it will cause the TV No Display.
2) UC1= LGDP4803C.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
3) US1= TPS65162 is a power management IC.
If this IC failed, it will cause the TV No Display.