09 March 2008, 05:47 | #1 |
Registered User
Join Date: Nov 2005
Location: Seattle, wa
Age: 50
Posts: 65
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A3000 Video problem
I've got an Amiga 3000D that I recently purchased and I'm having some trouble getting it up and running properly.
This machine has the 1.4 softbooting roms. I originally had trouble booting the machine at all. It came with 2megs chip and zero fast ram, and no hard drive. I put 2 megs of fast ram (zips) in, along with a 2gig scsi harddrive. I partitioned the drive, named the boot partition WB_2.0x created a folder called DEVS and placed a file called "Kickstart" in there. The kickstart file used was: Kickstart v3.1 rev 40.55 (1993)(Commodore)(A3000)[with bonus].rom When I boot the machine from the harddrive, I get a "cant get memory" error. When booted from a superkickstart disk + wb2.0 it boots up fine and shows 2m chip and 2m fast. Anyone know where I am messing up here? Will this kickstart image not work with the 3k? Another (and probably the biggest) problem is the video display. I am using the 31khz port connected to a vga monitor. When I first turn the machine on, cold, there is no video display at all, after a few minutes, the video starts flickering-in then finally remains on steady, although there is major distortion (wavy lines). After being on for 30-45 mins, the video blanks out again. Some of the chips on the MB, on the zorro side are a bit warm but nothing I would call hot. I placed a fan on the board and video will stay on indefinately, but the wavy lines and screen distortion remain. Distortion gets worse when multiple drawers are open on in workbench. Is there some bad chips causing this? thanks in advance for any help! -C6 |
09 March 2008, 17:03 | #2 |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,344
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There is a small AMBER tuning screw next to the VGA connector, have you tried turning that? You will need a very small jewellers screwdriver.
I've sent you a PM but I think it's the same one. Never had the "cant get memory" error, but I always had fast RAM. |
09 March 2008, 20:00 | #3 |
Registered User
Join Date: Nov 2005
Location: Seattle, wa
Age: 50
Posts: 65
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I've tried the tuning screw. It moves the wavy lines around some, but doesn't help at all
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12 March 2008, 23:45 | #4 |
Registered User
Join Date: Jan 2007
Location: Accrington/Lancashire
Posts: 26
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Wavy
WHat kind of vga display are you using? I think your monitor is not syncing just low enough - I have an LCD monitor from philips which has the wavy lines on yet a CRT IIyama which works wonderfully on the same machine....
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