A4K not recognising Zorro cards

[CSixx]

Hi all,

I just received an A4000/40 that I bought off of craigslist. It has 3.0 roms, 2chip, 16fast, and boots into workbench fine.

I snipped the battery from the motherboard as soon as I got it (it had not leaked at all).
The motherboard and daughterboard both look to be in excellent condition, however, I cannot get any Zorro cards to autoconfig.

I've tried a PicassoII, an EB920 Network card, and some various ram boards and none ever show up in the Early Startup. The cards all work fine in my A3k.

Are there any standard things to check in order to diagnose this?
I found this website: http://www.wonkity.com/~wblock/a4000hard/excrdnot.html that has a fix for broken traces on the daughtercard, but honestly it seems a bit beyond my skillset.

As a last resort, anyone in the Tacoma/Seattle area good at diagnosing problems and handy with a soldering iron?  

Thanks,
C6

[CSixx]

Thanks for the ideas. I bought another daughtercard. Hopefully It will resolve the issue, it should be here in a couple days.

TJLazer: If it still doesn't work, maybe you'd be available to try one of the cards in your 4k and see if it works there. I work in Tacoma so I'm there daily.

C6

[CSixx]

OK, I got a second daughtercard and same issue. No Zorro cards are recognized at all.

I can see that I have some older components in my machine, but that shoulden't stop all cards from working should it?

Its an 040 machine, mobo rev B, processor card is a rev 3.1 (3640), Rev 9 Buster, 3.0 roms.
Dying to get this thing setup and going.

TJ: Wanna take a look at this thing this weekend?  

-C6

[CSixx]

I havent tried any other buster chips as I don't have another, maybe that should be my next purchase.

I did strip the machine down completely trying only one card at a time, and no matter what, nothing ever shows up in early startup.

The cards I have to test with:
* adsg network card
* supraram 8meg ram board
* picasso II

My main concern is getting the picasso working. All of these cards work in my a2k and a3k, together or individually.

I do have a commodore amber card, which does work in the 4k, but its not an autoconfig card and doesnt show up in the early startup anyway.

Should I look for a buster 11 now?

[CSixx]

Could use some more help with this machine...
It's getting a bit frustrating as I cant figure out the problem.

I've purchased and tried another daughterboard, tried the working superbuster from my 3k, reseated chips, purchased and installed 3.1 roms, and checked the daughterboard slot for defects.

Still no zorro cards... Is there even anything left to check?
Send it to amiga repair center (i'm in the US)? Buy a new 4K?

thanks again.
c6