Repairing an old Amiga 2000 (From Backup 9-November-2014)

 

Hi there fellows,

I have been messing a couple of days to fix my Amiga2000 Rev4.3.

I had a kickswitch installed (ks102w) that autoboots 2.04, clicking the left mouse button boots 1.3.

Btw only 2.04 was actually working, trying to boot 1.3 even using relokick 1.4

 gets to a stuck white screen...

The first thing I did was to swap the rom of the kickswitch with a working one I took from an amiga 500, the white screen was always there.

Then I've tried removing the whole kickswitch and tried with only a 1.3 rom, same white screen.

The only working rom was a 2.04 took from a dead 500+

Then I removed and reseated every chip but still without any luck at all.

Then I had a fantastic idea, since the kickswitch was connected to pin 8 of the ODD CIA, I replaced both CIAs chips and, 

BANG! Relokick worked, 

so i reconnected the kickswitch to find everything working as it should!