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Old 12-09-2021, 04:51 AM   #63
Ierwin
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Join Date: Jul 2017
City & State: Braunschweig
My Country: Germany
I'm a: Knowledge Seeker
Posts: 57
Default Re: Panasonic TX-P50STW50 Power Supply no 5V (was clicking)

Let me say that Im sorry for all the confusion.
I realize I have had some practical issues here that screwed up my results and its hard to perfrom analyzis when measurements are not reliable. One simple reason was the way I proped on the board.
I now soldered some wires to critical testpoints so I can clamp on the probes and get reliable readings.

So with the IC501 removed completely I can confirm that 15V indeed does NOT drop (loaded with 34Ohm, Resistors heating up) while the 7V line does DROP under load (same 34Ohm Resistor, drops to 4.2V, no heat)
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