I am new to this forum and I am looking for some help and guidence. My neighbor gave me a Samsung UN58MU6100FXZA tv, saying if I can fix it I have a tv. I have searched on the internet and I am unable to find a service/repair manual for it or any schematics for it.
When I received it the tv did not turn on, nor did it have a standby light. I purchased a used, supposedly good board that was removed from a tv with a cracked screen off ebay. (The seller had a 100% feedback score, but I know thast is not a guarantee.) I installed the board and now I get a standby light and the tv turns on. The screen flickered shortly after powering on and then went black. I then did a factory reset and I updated the software. After a few minutes the screen starts to flicker and then goes black. It takes a couple minutes longer before it starts to flicker after the reset and software update. There is still sound when the screen goes black.
If I put a flashlight next to the screen in a room with the lights off I can see images on the screen and hear sound. If I remove the cable from the power board to the main board the led backlights stay on with no flickering. I am thinking the main board is bad too, but before I replace it I am looking for your help and guidence in case I should be doing something else first. Thanks.
When I received it the tv did not turn on, nor did it have a standby light. I purchased a used, supposedly good board that was removed from a tv with a cracked screen off ebay. (The seller had a 100% feedback score, but I know thast is not a guarantee.) I installed the board and now I get a standby light and the tv turns on. The screen flickered shortly after powering on and then went black. I then did a factory reset and I updated the software. After a few minutes the screen starts to flicker and then goes black. It takes a couple minutes longer before it starts to flicker after the reset and software update. There is still sound when the screen goes black.
If I put a flashlight next to the screen in a room with the lights off I can see images on the screen and hear sound. If I remove the cable from the power board to the main board the led backlights stay on with no flickering. I am thinking the main board is bad too, but before I replace it I am looking for your help and guidence in case I should be doing something else first. Thanks.
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