Dead A4000?

[tokyoracer]

Hello again,
Sorry to keep coming up with more dissapointing crap as it seems i'v been very unlucky recently, though this time something more serious has happend. I recived an A4000/040 fairly recently but havn't had the time to set it up completely until now and noticed it doesn't boot up at all. The floppy LED stays on but nothing else. I hear the HD boot up too but not actually reading anything. I'v taken out the CV64 and all the RAM cards but it makes no difference. If tried all i can but im just stuck what to do now and having to resort to outside help. Has anyone got any ideas?

[TjLaZer]

Remove the CPU card and reseat it.  Also check for a leaking battery or one that had leaked in the past.

I would also check the CPU jumpers make sure they are on EXT.

[tokyoracer]

Ok just done that. Removed the 040, daughterboard, (battery already removed), all ram cards but is still the same.

[Jeff]

You say the floppy light stays on all the time? The ribbon cable isn't backwards is it? Pull the cable to the floppy and see it you get video.

Jeff

[tokyoracer]

Nah it still displays a blank screen. :-(

[Akiko]

If you continuously press the caps lock, does it stay lit?

[tokyoracer]

No, oddly it works a few times then it says off. :-?

[TjLaZer]

in what position are the jumpers under the A3640?

[Akiko]

Then the processor hasn't even initialized  :-(

[tokyoracer]

If you wait a few mins I can do a scan for you.

[tokyoracer]

Scan ready: http://i33.photobucket.com/albums/d74/celliot/Scan10035.jpg

[alexh]

Bog standard 25MHz A3640 v3.1, MAPROM enabled.

[tokyoracer]

@ Alexh, looks spot on.

[countzero]

CAPS !

[_jmp_]

and another site about replacing capacitors:
A3640_capacitor