Blizzard 2060 repair chronicles

[EdFlux]

Check here

Card arrived today. It didn't have cat urine, but it appeared to be a sticky resin of sorts. Cleaned up with soap and water and it came all off, so the board is nice and shiny with no bad traces noted.

But, no boot    :cry:

Pulled the 68060 and a couple of the pins on the socket had green corrosion on them, hopefully I didn't toast the CPU when I powered it on. Currently soaking the board in lighter fluid to get any deep resin or corrosion off the board.

Scrub a dub dub!

[EdFlux]

AFAIK zippo fluid isn't corrosive, i've used it before to clean very dirty PCBs with tar/resin on them.

And yes the board was dry  :-D

Still, no go. Upon further inspection, it looks like the S74FCT chips on the board have a few pins soldered together. These are located between the SIMM slots. If anyone has a board to compare, i'd like to know if they are supposed to have pins soldered together or if this was a prior repair attempt. Doesn't look that way on the pic on the hardware database. I did get my A2000 to start with the board disabled while holding "0", but it doesn't work everytime.

The vias also have green stuff in them, not looking good.

[EdFlux]

orb85750 wrote:
Great, now you can't ship the board anywhere without declaring it as explosive/hazardous material.

LOL, seriously, it's brought back boards from the dead for me. (like an Atari ST floppy drive that had a crazy capacitor explosion)

I took a real good look at a pic of the board online, looks like a botched repair job. I'm gonna get out the soldering iron and see what I can do. At least I got a 68060 out of the deal, all I need to do is find a 2040 or GVP-M now.

[EdFlux]

I cleaned up the solder joints on the SMD chips I mentioned and still no luck. The 68060 only gets slightly warm to the touch. I have no way to test it unless I convert the board to a 2040 and pop an '040 in there, but I just don't want to screw it up any more. So I officially wave the white flag and bow my head to supreme  paperweightdom.

Anyone ever deal with these?:

http://www.amigacenter.com/
http://amiga.serveftp.net/index.html

I've heard good things about the center in France, kinda steep, but worth it IMHO.