« on: July 05, 2021, 07:20:15 AM »
Are the two CIA chips the same in the A4000? If so then try swapping them and rerunning diagram to see if the problem follows the CIA or stays with Chip B. This will help show if it's the chip or something else.
I hope it's the chip as it should be quite easy and cheap to replace.
« Last Edit: July 05, 2021, 07:21:11 AM by AndyFC »
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A1200 in DIY Tower. 3.2 ROMs (softkicking 3.2.2), OS 3.2.2 with ClassicWB, CF card, CD RW and IDE to SD adapter running off the internal IDE port (using the A4000 4-port IDE adapter from Amigakit), Pistorm 32 lite with Pi4/2GB/Emu68 or Blizzard 1230-IV, with 32MB 60ns RAM and 50MHz 68882 FPU. 3COM PCMCIA Network card running with Miami DX.
MorphOS on PowerMac G5 and ATI 9600 pro
