Re: Need help fixing a C128 DCR

From: Nate Lawson <*nate_at_root.org*> Date: Thu, 24 Jun 2010 09:25:07 -0700 Message-ID: <4C2386E3.8090507@root.org> · nate_at_root.org

Baltissen, GJPAA (Ruud) wrote:
> My advice: try exchanging the CIA's first. AFAIK they aren't soldered do
> that shouldn't be much trouble. If possible, exchange them with a
> working system. If no result, the 8502 is may be to blame.
> A brooken colour-RAM doesn't explain the missing cursor but one of the
> CIA's also controls the video partly. So another reason to look at them
> first.

Seconded. The CIAs connect to lots of external ports, including joystick
on the C64, and are sensitive to static.

-- 
Nate

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