LED TV Repair (Newbie Guide)
TCL 29D700 LED TV
Backlight Issue
Defective Mainboard backlight driver IC
This unit came to with NO Display on screen although you can hear sounds when it's ON but black screen ..I tried using flash light to see If an image is present and it has. As I troubleshoot the unit on what can be the cause I found out that the power supplying the backlight led is too low to turn the backlight LED ON.. the LED itself are in all good working condition upon testing.. suspected Driver IC is faulty but since I have no same parts available I converted the BL driver using Universal BL Driver Auto Reduce Board.
The unit is done!
This trick can be done on almost all Led TV now a days just find the right Uni-BL Driver Board
Thank you for watching
Credits:
BGSounds: Lucky Day (Jingle Punks)
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