Hi All,
I received a brand new MK2 to start 2022, plugged in chips, and powered up using the icomp power supply. Everything works great, but the Diagnose LED keeps blinking. Connecting via USB and using serial port connection, I can see:
Error: CPU is not recognized, check U7
VIC-II: 6567 (B9 4D 9880 NTSC)
SID 1 : 6581 (9B C9)
SID 2 : Unknown (0000)
MCU : 20180227
READY (press key for menu)
I've tested with 2 different CPUs:
MOS, 6510 CBM, 4983
MOS, 6510 CBM, 1583
Everything seems to work great when using the MK2 with both of the above CPUs. Placing both CPUs in other C64s (before and after using in MK2) results in happy, working machines.
Curious if anyone else has run into this or has recommendations for other tests I should do. Any way to see move verbose error on the CPU check?
Thank you, Chris