Could be a bad M1 ROM on the CHAFIO board, the M1 ROM contains Z80 instruction code.
Hi HMG , I'll try to burn a 27C040
Thanks
No works , the z80 error has the upper hand for the moment
Other ideas ?
How's your current voltage?
For as bizarre as it may look, I got that error on my MS3... on the AES!
Swapped the PSU and it never poped up again.