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I have a samsung SP-R4232 Plasma TV. When i turn it on i only get audio. Screen remains black. What are possible problems here and are there any resets that may be tripped?
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ONE OF TWO THINGS, THE LINE COULD POSSIBLY BE FIXED WITH A SCAN BOARD, BUT NOT LIKELY, PROBABLY NEEDS A SCREEN REPLACED, THE OTHER RED STUFF CAN BE FIXED WITH A X-BOARD REPLACEMENT, BETTER OFF TO BUY A NEW TV
At this point it appears that your main board is probably bad. You most likely have a 5 volt scource going to the main board but its not powering up the set. The main board is part number BN94-00796A.
You might want to have a technician look at the TV to verify this as the issue before purchasing it. Please take a few moments to rate my answer. Thank you.
There are at least two issues here. First you have bad buffer boards. Second Very possibly a bad X-Main bd and P-Logic bds. Have a trained Samsung tech troubleshoot the set.
Remove the power supply cable to Y Main board, check Vs on power supply board when you turn on tv.
1. If you have normal Vs, replace the Y Main board. If still not work, replace the Logic board.
2. If you don't have normal Vs when you try to turn on your tv, just replace the Power Supply board.
I have samsung 40" LCD tv and it's happening the same thing. I turned it on and it last for 5 minutes and the screen went back but the audio is fine. I turned off and turned it back on it worked fine but an hour later it happen again.
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