Got in a Sammy PN63...
Initially, voltages were all over the place at power up.. Determined it was the Y-SUS.. Replaced it with a probable good one...
Now I get Sammy Startup Tones and voltages are good. But nothing on the display panel and voltages drop like a rock after initially reading GOOD...
No obvious bad caps and fuses all check out..
I was thinking Power board, but don't think I would get good voltages initially if the Power PCB was toast...
Control board??
Initially, voltages were all over the place at power up.. Determined it was the Y-SUS.. Replaced it with a probable good one...
Now I get Sammy Startup Tones and voltages are good. But nothing on the display panel and voltages drop like a rock after initially reading GOOD...
No obvious bad caps and fuses all check out..
I was thinking Power board, but don't think I would get good voltages initially if the Power PCB was toast...
Control board??
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