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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: McVenco on September 22, 2007, 08:08:09 PM

Title: Reviving an A4000 - problems!
Post by: McVenco on September 22, 2007, 08:08:09 PM

I bought a nearly complete A4000/030 a while ago, and I'm trying to get it to work while taking some parts from my other A4000s.

When I bought it, it lacked a Buster chip, a floppy drive and a CPU card. I ripped those from one of my other machines and installed them, but the only thing I get thusfar is a blinking powerlight, and a grey screen (there seems no difference in shades of grey when I reset the machine).

What can be the problem? I already tried 2 different CPU cards, a different Chip RAM SIMM, and I pushed down all socketed chips.

Any idea?

Title: Re: Reviving an A4000 - problems!
Post by: amiga_3k on September 22, 2007, 10:45:36 PM

McVenco:

Tried all the obvious already? Like stripping the A4000 to its lowest form of life (2 MB Chip, no fast, no harddisks, no keyboards, no mice.... ) and then start it? Tried different Kick-ROMS? PCB around the clock-battery still okay? Oh... and probably even more interesting: How's the jumper-settings on the main-board? I vaguely remember the same behaviour on my A3k when I had been messing around with those settings.

Title: Re: Reviving an A4000 - problems!
Post by: McVenco on September 22, 2007, 11:50:29 PM

Yesp, I tried every possible way. Even swapped some parts from my other A4000s (daughterboard, simms, PSU, CPU card, ROMs), but nothing. So I have no clue what it could be...

Jumper settings are the same as my other, working A4000s, and the battery area is clean (battery removed)

Title: Re: Reviving an A4000 - problems!
Post by: T3000 on September 23, 2007, 06:21:34 AM

How about the Power Supply? Might want to test it.