RE: Need help fixing a C128 DCR

From: Baltissen, GJPAA (Ruud) <>
Date: Thu, 24 Jun 2010 15:26:30 +0200
Message-ID: <>
Hallo Laze,

> but with randomly colored chars

Colour-RAM, ...

> and no cursor shows up. 

One of  the 6526 CIA's should supply the interrupt signal. 

> The floppy drive seems to finish its start-up sequence no problem.

Is it just the normal start-up sequence or the one a C128 does i.e. auto

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

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Received on 2010-06-24 14:00:10

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