While the TV was on, I heard a clicking sound and the picture went out but sound was still there. I found blown fuse on ZSUS terminal board and replaced it. It didn't fix the problem and TV is now turning off by itself right after pressing the on button.
I know you already replaced the board, this is for future searchers. If you heard a popping sound, then the picture went out, there is a 32 pin Sanyo module that goes bad on the board. That's probably what caused the fuse to blow. Replace the module, then replace the fuse. The module is less than half the cost of a used board. Since this was a popular model TV, there are lots of replacement boards on the used market.
Check for blown fuses on the rest of the boards as well, if there's a blown fuse on any of the bds the power supply will turn itself off if it doesn't sense a load. hope this helps.
I fixed it by replacing the ZSUS terminal board
Do you have the part number of the board. Mine just did this as well
I fixed it by replacing the zsus terminal board.
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tv shutting off by itself and turning back on after i turn on.
the remote is not working to turn picture on sometimes i hear the sound
Exact same problem but with 50" plasma
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