Re: CBM 3032 (PET 2001N-32), no video?

From: Francesco Messineo <*francesco.messineo_at_gmail.com*> Date: Sun, 25 Feb 2018 08:55:47 +0100 Message-ID: <CAESs-_wAVPM0xZPb1OfoO14=45nfWZhL5rXS4FqeHEd8+jW=ZA@mail.gmail.com> · francesco.messineo_at_gmail.com

On Sat, Feb 24, 2018 at 11:19 PM, Valerio Castelli
<v.castelli92@gmail.com> wrote:
> Just checked the voltage on the winding for the monitor supply, it shows
> 16.5 Vac, which is a little lower than the 18Vac you mentioned. Is that
> within tolerance? Otherwise I’ll have to check the monitor PCB, it may
> indeed be a cracked solder joint… It’s my first experience with a CBM, but
> other computers of that era tend to have this kind of issues as well, I
> guess it’s rather common.

yes, 16.5Vac is ok. If the heater doesn't glow, it's definitely
something in the rectifier/filter/regulator part in the monitor PCB.

Frank

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