Nov 16, 2023, 6:28 PM
Post #1 of 1
When the TV powers on, the back light comes on but there is no audio or video. After a few seconds I can here a relay click and it powers off and then back on. It will stay in that cycle forever.
Samsung un82ru8000fxza power cycling
There are only two boards on the backside of the TV, so I replaced both of them. The main board (BN94-14503A) and the power supply board (BN44-00874F). I still got the same result. I did some more research and this started to sound like a T-con board issue. There are two wide ribbon cables going from the main board to connectors at the bottom of the panel. There is a long narrow access panel where one of the cables connects. I unplugged that cable, powered on the TV and there is now audio and it quit power cycling. I am assuming this is where the T-con board is located.
However, I can't find any replacement part online. Does anyone know if the T-con board is repairable or is it integrated into the LCD panel which means the TV is toast. Thanks for any feedback.