Re: Broken VIC

From: Julian Perry <>
Date: Fri, 1 Feb 2013 23:50:46 +1100
Message-ID: <>
Hello Gerrit,

Friday, February 1, 2013, 4:43:27 AM, you wrote:

Quite some time ago, I came across an image that displayed each (in
turn) of all the external timing signals, and their (exaggerated)
effect on VICII video output.

I host it at
(and you should look at it there)

It was originally sourced from:

I found it of some interest when researching the topic a year ago.

I wouldn't mind seeing your example, Gerrit.

> Hello,

> anyone here interested in an image showing the output of a C64 (power on
> screen) where the VIC has a rather interesting fault. The AEC signal is
> imprinted on the Luma signal quite clearly. This way you can easily see
> the badlines and where the VIC starts fetching data and how long it 
> takes for that data to appear on screen.

> The image was posted in a forum a while ago and I had saved it for 
> reference. Since it's 770K, I can't post it here, so anyone who wants a
> copy, drop me a mail.

>   Gerrit

>        Message was sent through the cbm-hackers mailing list

Best regards,

       Message was sent through the cbm-hackers mailing list
Received on 2013-02-01 13:00:04

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