Re: PET 2001 fix Part 2 - The monitor

Hello Phil,

It's never a bad idea to replace all the old caps.
But the wobbling thing you are talking about, is probably a bad 
potentiometer.
Just get some contact cleaner and clean the potentiometers with it.

Regards,
Donato


----- Original Message ----- 
From: "Philip Lord" <random6000@mac.com>
To: <cbm-hackers@musoftware.de>
Sent: Friday, March 25, 2011 7:44 AM
Subject: PET 2001 fix Part 2 - The monitor


> Hi again,
> Now that the motherboard is working, I need to turn my attention to the 
> crazy wobbling monitor. It basically wobbles all the time, but fluctuates 
> between extreme and slight wobbling.
> Is it time to replace some caps on the monitor circuit board?
>
> If so, I was wondering if I should just attack the 4 big ones:
>
> C1 4700uf 25v
> C15 470uf 16v
> C28 10uf N.P
> C27 3.3uf 200v
>
> ...or should I do them all?
>
> Cheers
>
> Phil
>
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