Amiga 4000 custom chip transplant

obitus1990

Well-known member
Joined
May 25, 2020
Messages
2,543
Reaction score
2,110
Location
Metairie, Louisiana
My original A4000 died about a year ago. It had been damaged by battery corrosion years ago, and was repaired, but with corrosion on a multilayered board, it eventually catches up with you and something gets destroyed in the inner layers of the PCB. There was capacitor leakage as well, which I mitigated via recapping about 8 years ago, but I'm sure that too did some internal damage.

Thankfully, reproduction motherboards were made maybe 7 years ago, and I had one of them and recently began building it up, one tiny SMD part at a time. Today was the day to transfer over all the custom ICs, which I spent the better part of the day desoldering from the original board. It was a total of 8 PLCC and 1 QFP, and it was a lot of work to remove them, clean them up, and either resolder them or put them into PLCC sockets the way they should have been done to begin with, but Commodore, cheap asses they were, did not.

Here we are...and now she works 100% again. I still have to solder in the external floppy port and the daughter card edge connector slots, but here's all 997 SMD parts in place (there's more on the back of the board).

IMG_9861.jpg

IMG_9859.jpg
 
Back
Top Bottom