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Author Topic: A3000 Pixel Jitter  (Read 3183 times)

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Offline KernelTopic starter

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A3000 Pixel Jitter
« on: May 27, 2011, 04:17:01 PM »
I have sparkles all over my desktop.  YAY!

I know I can adjust this with the fine tuner and a small phillips screwdriver (I don't have the actual tool that came with the A3000) but I've done this in the past and it just comes back eventually.  I figure this will be gone once I land that elusive Picasso IV card, but until then, I'm wondering if anyone has ever had to adjust the "coarse" setting that is mentioned in the manual as not user adjustable?  I'm assuming that this would be the other small phillips based pentomiter on the motherboard near the Amber chip area.

Anyone have thoughts on this?
 

Offline KernelTopic starter

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Re: A3000 Pixel Jitter
« Reply #1 on: May 30, 2011, 07:53:07 PM »
Quote from: hardlink;640753
Then there is always the old U202 and U203 PAL problems, which my A3000 has:

http://www.zimmers.net/cbmpics/cbm/amiga/a3000guide.txt


Well, I fixed the sparkles/jitter with a few twists of the fine tune but I'm sure it will return eventually.

I'm not sure if my issue is what you identified here but does anyone know if this sparkle/jitter issue can be cleaned up by replacing the above chips, Amber, or other chips?
 

Offline KernelTopic starter

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Re: A3000 Pixel Jitter
« Reply #2 on: June 01, 2011, 11:40:16 PM »
Ah - yeah, I'll try a bit of that!