I made a few simple hacks to my A1000 over the years:
- replaced two pals that were giving me trouble
- grounded all of the pals together, then to a pad on the mainboard
- pulled one resistor from the video circuit for better color accuracy
- bypassed the low-pass filter
ref:
http://www.amigau.com/aig/a1000faq.html (and links thereof)
- replaced two LS logic chips in the video path with hopes of fixing my color intensity weirdness issue
I want to hack in switchable kickstart roms, but haven't figured all of that out yet. (switch between no rom (floppy), 1.1, 1.3, 1.4 (why not), 2.0, perhaps 3.9 for the heck of it. I've got the rom burning equipment and stuff...
Now i just need to track down the video issue and find a replacement 'x' key for my keyboard, and i'll be back in business.
I also often think that I want to figure out how to mount my Data Flyer 1000 inside the case, but that seems unlikely.
The changes to your board look interesting. looks like the two pairs have had their powers and grounds tied together, but i've never heard of that change... just desolder them all off, and tie the grounds of them properly.
