Convergent CP-001 (80186) booting (and failing miserably at it)
Doesn't look so bad. error A3 is it complaining it can't talk to the NEC 7201. If there isn't a working keyboard, you won't be able to select the boot device it's waiting for. There aren't any disk peripherals on the main module, so the expansion bus will have to be working to talk to a floppy or hd.
The bootstrap error codes are in 5016009_B20_Status_Codes_Reference_R5.0_Jan85.pdf
