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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Kernel on March 11, 2006, 06:13:00 PM

Title: A3000 Graphics Artifacts
Post by: Kernel on March 11, 2006, 06:13:00 PM

I have an A3K that is showing graphical artifacts - almost like interference - on the built-in flicker fixer interface.  I haven't tried it on an RGB or composite monitor though.

Any ideas what could be causing this and how to fix it?

Title: Re: A3000 Graphics Artifacts
Post by: Matt_H on March 11, 2006, 06:25:29 PM

I'd guess either battery damage or a mis-tuned potentiometer for the flickerfixer.

Title: Re: A3000 Graphics Artifacts
Post by: amigagr on March 11, 2006, 07:34:55 PM

or the chip ram ics need a good cleaning and reinstall carefully. sometimes i have these problems and worse from denice, i clean it once but seams that overheat.

Title: Re: A3000 Graphics Artifacts
Post by: KThunder on March 11, 2006, 07:47:24 PM

mine flickers for about 30sec to a minute when  its cold but then it goes away.

Title: Re: A3000 Graphics Artifacts
Post by: Kernel on March 11, 2006, 09:30:11 PM

How do I tune it?  It didn;t come with a tool...

Title: Re: A3000 Graphics Artifacts
Post by: amigagr on March 11, 2006, 09:49:22 PM

at the left of ff switch is a small hole. with a thin plastic tuning screwdriver you can tune the ff if it's need to do it.

Title: Re: A3000 Graphics Artifacts
Post by: Kernel on March 12, 2006, 12:14:58 AM

Is there a specific tool I can purchase, or is this a "do with what you have" type of thing?

Title: Re: A3000 Graphics Artifacts
Post by: Kernel on March 12, 2006, 07:48:31 AM

Never mind - I used a small craftsman flathead and though not the perfect tool, it worked like a charm.  No more artifacts.

Thanks!