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Author Topic: A3000 repair, part 2  (Read 1521 times)

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Offline webmanyTopic starter

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A3000 repair, part 2
« on: December 05, 2007, 04:02:31 AM »
Thanks to amiga92570, I have managed to get video, only to discover a blue screen.  I have read that this means an error in the custom chips, but is there any way to know which one?
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Offline Jeff

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Re: A3000 repair, part 2
« Reply #1 on: December 05, 2007, 04:12:42 AM »
Inquiring minds want to know:-) What did you do to get video? I missed that part of the conversation and I have a pile of A3000 motherboards here:-D
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Offline amiga92570

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Re: A3000 repair, part 2
« Reply #2 on: December 05, 2007, 04:12:45 AM »
Try removing, cleaning and reinstalling denise and paula and maybe agnus. If you have spare chips try substitution. I would bet on denise. The battery isn't corroded is it?
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Amiga92570
==========================
(1) 4000T/040 (2)3000t CS 060/233ppc Picasso IV video, (2)D-box 1200 blizzard 060/200ppc Mediator fastATA, (1)amiga 1200 Power tower, (1)amiga 1200 EZ tower with mediator,1200/030/50mhz, (3) amiga 500 with CSA Mega Midget Racer and Trump card AT, (2) amiga 600 one with M-tec 030, (3) CD32 one sx32, two sx32-pro, More accessories and parts than I want to admit to
 

Offline webmanyTopic starter

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Re: A3000 repair, part 2
« Reply #3 on: December 05, 2007, 12:43:14 PM »
Problem was that I did not have a HD connected during testing all the time.  I have lost video again, but believe the bad chip may have something to do with it.

The battery was removed awhile ago, but not before it caused damage to the motherboard.  There does not appear to be any bad traces, but not sure what is on the middle layers of the board.

Will track down a chip puller and try reseating.

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