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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: koaftder on June 23, 2004, 04:51:42 AM
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Hey yall, i just recently put together an amiga 3000 system. I'm getting a wierd video problem. When the computer is started up cold, it looks like every horizontal line is shifted to the left a pixel or two, and it flickers real bad. After the machine has been up for about 10 minutes the problem slowly fades away. I'm currently using a descent VGA monitor, ive tested the machine on two monitors, and they both exhibit the same behavior, though they work perfectly fine on all my other machines.
Not much of a problem really, but i expect it will get worse. Any ideas?
-k
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I would guess (and this is just a guess) that something is mis-adjusted in the built-in scandoubler module. Perhaps the timing is slightly off? I think it has a potentiometer somewhere on the motherboard.
I have a scandoubler card that exhibits a similar problem, only the inverse. The horizontal lines start out a few pixels offset too far right, and then come into place as the card warms up. After maybe a two or three minutes, it displays perfectly. I always just figured if it got any worse, I'd mess with adjusting it, but so far, it's stayed the same.
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Have you tried fine tuning the potentiometer in the hole near the scandoubler switch?
-tom