A3000 capacitors

[quantum8]

I'm getting some weird issues on my a3000 and part of this involved measuring the 5V lines on the power connector. I'm getting 4.8V with 320mV ripple so I think it's time to replace the capacitors in the PSU.

Does anyone have a list of caps for this, or do I need to open it up and have a look to see what I need to order?

Also, is it worth replacing the caps on the main and daughterboards while I'm at it?

 

[Fook42]

although its in german, but this side is quiet informative:

http://www.amigawiki.de/doku.php?id=de:parts:elco_list



replacing the caps is always a good idea.. but A3000 caps are not known to be leaking much..
but the battery needs to be removed!!!! really important!

 

[quantum8]

Thanks fook42.

The battery was removed years ago and it looks pretty clean. I've put a coin holder + diode there and it holds the time quite nicely.

I'm more concerned about old capacitors in the PSU that are causing the low voltage and the large ripple.

The site you linked is very informative, but doesn't list the A3000d PSU, only the tower version which looks to have a different part number.

 

[Fook42]

if you are registered to the biggest german amiga forum (a1k.org) you may access this:

https://www.a1k.org/forum/index.php?threads/32892/page-6#post-1289036
https://www.a1k.org/forum/index.php?threads/32892/page-6#post-1289455

this will give you an A3000 PSU schematic and a picture showing which capacitor (with values) is placed where.

(i'm not sure whether i may /am allowed to share the information, this is why i just copy the links - sorry).

 

[quantum8]

Thanks fook42.

To finalise this, I ended up finding a complete list on another forum:
https://forum.classic-computing.de/...stellung-amiga-3000/&postID=212134#post212134