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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Gwion on July 14, 2010, 06:55:33 PM

Title: A3000 Display Problem
Post by: Gwion on July 14, 2010, 06:55:33 PM

Hi,
Im having some display problems with my A3000.
I dont really know how to describe whats happening so i've attatched pictures.
Its fine when using PAL: Low Res & High Res.
But all other modes cause the same sort of thing.

Thanks in advanced for any help :)

Gwion

Title: Re: A3000 Display Problem
Post by: VingtTrois on July 14, 2010, 07:11:08 PM

Hi,
What's your complete configuration please?
I've the same problem but only with the video output from the GVP Impact Vision 24 :(

Title: Re: A3000 Display Problem
Post by: Zac67 on July 14, 2010, 07:18:34 PM

Is that the 31 kHz Amber output to VGA? Reset overscan to standard - Amber doesn't like extreme overscan. Have you tried another monitor? 31 kHz vs 15 kHz?

Title: Re: A3000 Display Problem
Post by: Tripitaka on July 14, 2010, 07:19:16 PM

What monitor? How is it connected? Is the cable shielded? are you using an RTG card? Do you have any high powered electrical devices nearby? Is your screen sitting on top of a wall of magnets? etc....

Please forgive the slight sarcasm on that last question, the point I'm trying to make is that if you need help you need to provide as many details as you can. Giving us too much info is no crime. Not enough is no use.

Add some more info and your sure to get someone who can help, maybe me, maybe someone else, the more info, the better your chances.

Good luck.

Title: Re: A3000 Display Problem
Post by: KThunder on July 14, 2010, 07:25:42 PM

Is this a new problem that just started or is this a new system?

I had a program in my startup-sequence in a 1200 I bought years ago that caused screen problems, mostly in interlaced modes.

also does the trimpot for vga adjustment do anything (probably not but worth a shot)

Title: Re: A3000 Display Problem
Post by: Gwion on July 14, 2010, 10:38:29 PM

Hi,
Its a standard Amiga 3000 with 2MB Chip and 8MB Fast Ram.
I havent tried it with a 15hz because I dont have one. I'm using a VGA monitor which works with my PC fine. Dont know what else to say.

Title: Re: A3000 Display Problem
Post by: Matt_H on July 14, 2010, 11:34:35 PM

Check for battery damage.
Adjust the flickerfixer refinement screw next to the disable switch.

Title: Re: A3000 Display Problem
Post by: Gwion on July 15, 2010, 12:23:37 AM

I just tried adjust it but still no change and there is no Battery damage.
I have no idea what it could be. :/