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Old 12-09-2021, 04:51 AM   #63
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)
Ierwin is offline   Reply With Quote