Thanx for your very detailed (and I think time consuming ;-) report. René

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This looks very interesting Nenad and must be a lot of work. When the dark days are coming I dive in it. René

Thanx for that, very helpfull ! René

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Thanx !! Good info. René

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Hi Albert, interesting stuff and info but I have the coming period almost no time for my hobby. An urgent repair in the garage and my car, so when there is more time I dive in again and post the resul

Yesterday I made some measurements so here again is an update of that. The values that Albert measures around U460 is on my PG506 almost the same; U460 & U430 pin3 = 8,85V / C420 = 13,36V (switch on D

Thanks Albert for your research. Together with the information from Michael I have plenty of material to investigate my PG506. After a few days I report again. René

Thanx Albert (and Michael ofcourse) for your perseverance. In the coming week I have a few days time to do new measurements and I report back. René

Thanks for the replies from everybody, here an update; Michael & Albert, thanks for your measurements at the 5V1 & 5V supply. Mine 5V1 is 4,715V (U670) and the 5V is 4,96V (U668). This is a bit lower

Thanks Dennis, the link did not work for me but I found it. Very usefull information!! René

Thanks Albert and Michael for the information. Looks like T130 in my PG506 is a bit warmer then yours Albert, so maybe something is consuming extra current somewhere... And next days I investigate the

Hi Michael, this weekend I found the time to check your suggestions from your previous mail. So here are some measurements; With all the measurements the switch on the front panel is allways on STD AM

That is really a very detailed explanation Michael, very much thanx for that! In the weekend or next week I have the time to work on the PG506 because the coming days I´m busy with other things. Worki

Hi Michael, thanx for your time and trying to help me with solving my problematic PG506. When "I push the variable in" I see the "88" with the decimal point in the middle. I said before that only the

Thanx Michael for your detailed repair summary. My PG506 (also >B40000) functions normal but only has a strange display behaviour; when switched on STD AMPL. (and VAR AMPL. out) and rotating the VAR A

Great article, thanx.

Thanx for the link Brad. Good in these times for hours of reading :-) René

Good to hear it´s going better Dennis so keep safe and watch out for THE virus. René

Thanx, great info!! René

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Thanx for the info David. I had the same experience with trace intensity variations on a 547. After several hours searching and measuring it was a voltage variation on the grid of V800, and so increas