Toshiba 46L5200U Backlight Turns Off No Video but Sound

This TV had an issue with the LED backlight shutting off after awhile. Posts on badcaps indicated cutting the DIM control line between the main board and power supply should fix the problem. This line was marked pin 15 on the PS board and had a yellow wire. Cutting the wire seems to have solved the problem.

Update – I would recommend updating the firmware as well.

Leave a Reply