I'd appreciate any info on how to understand how to repair an MV1B board (specifically with the error below and any material in general).
Both upper and lower boards have a problem but I'm focusing on the lower one for now.
I have a good MV1B so I use the upper board from that and since I installed the Universe Bios it boots but after the first screen I get the following error: Exception Error Handling
Illegal Instruction
Address :00000000
AC ADRS:--------
R/W:-----
D0:000000FE D4:00000001
D1:000702AB D5:00FF00FF
D2:0012001B D6:00000001
D3:00000000 D7:00000002
SSP:FDFF2A30
SP:0000
My logic probe is ready if needed.
Both upper and lower boards have a problem but I'm focusing on the lower one for now.
I have a good MV1B so I use the upper board from that and since I installed the Universe Bios it boots but after the first screen I get the following error: Exception Error Handling
Illegal Instruction
Address :00000000
AC ADRS:--------
R/W:-----
D0:000000FE D4:00000001
D1:000702AB D5:00FF00FF
D2:0012001B D6:00000001
D3:00000000 D7:00000002
SSP:FDFF2A30
SP:0000
My logic probe is ready if needed.