Re: Difference in luma-chroma delay of C64/C128 compared to standard S-video

Date: Mon, 4 Sep 2017 23:02:26 +0200
Message-Id: <>
> On 2017-09-04, at 22:54, wrote:
>>>>> Did anyone try to run a C64 with an independently clocked dot clock?
>>> I just did. I put an 8MHz clock directly on 6569R5 VIC's pin 22.
>>>>> How did it look like?
>>> Heavy colour bleeding and some dot crawl on some colour changes aside - perfect. So I tuned the clock to be 7.88MHz and it seemed fully perfect. Subjectively better than with original clock, although I'd have to connect it to spec analyser and a truly hi-res display to be convinced about that.
>> To see dot crawl better, you need to use FBAS/CVBS instead of Y/C.
> Yes. Unfortunately my generator doesn't allow "seamless" frequency tuning so I can't be sure if I could fully get rid of them.

But I suppose yes, until it'd drift away.

SD! -

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Received on 2017-09-04 21:03:19

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