Re: B256 supply bleeps!

From: william degnan <billdegnan_at_gmail.com>
Date: Fri, 20 Oct 2017 00:19:00 -0400
Message-ID: <CABGJBud6kcYby+-R=59fbAg2Tr-fY9Y5FGgzC9YTLxdMRTi_OA@mail.gmail.com>
I agree needs to be done asap.

Bill Degnan
twitter: billdeg
vintagecomputer.net
On Oct 19, 2017 11:40 PM, "vossi" <vossi@ceffy.de> wrote:

>
> Hi Bill,
> you have to change all the electrolytic caps in the B256-supply.
> It starts with bleeping more and more and sometimes the machine doesn't
> start anymore!
> Especially the golden caps are problematic. If you have japanese caps in
> the
> supply (often orange) - they are mostly ok.
> Also you have to change the filter caps at the voltage input - they explode
> sometimes!
> I watched the US-supply schematics and it looks similar to the EU-supply.
> It
> has the same prblematic 1000uF and the filter caps.
>
> I changed the caps of more than ten 6xx and 7xx machines in the past - and
> after that - all machines were silent ;)
>
> Christian
>
> william degnan wrote
> > I have today put my CBM 256 up on the work table and ready to go if
> anyone
> > needs me to run a test of the card.    I ran it for about 5 hours to
> > freshen it up but the power supply is a little weak and it squeals for
> the
> > first 10 minutes or so.
> > Bill
>
>
>
> --
> Sent from: http://cbm-hackers.2304266.n4.nabble.com/
>
>        Message was sent through the cbm-hackers mailing list
>


       Message was sent through the cbm-hackers mailing list
Received on 2017-10-20 05:00:02

Archive generated by hypermail 2.2.0.