SVM
Enthusiast
- Joined
- Aug 30, 2016
- Messages
- 181
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- 156
Hello, I've got a MV1FZ with an Z80 error. When I insert the Diagnostic BIOS (v0.19.a02) it says "all tests passed" and when I use an additional diagnostic cart it says "SM1/Z80 prepare slot switch ignored" (see photo). Pressing Start does nothing.
The Z80 seems to be already replaced by the previous owner. Today I've replaced the SM1 Chip but the error stays the same. All connections between Z80, SM1, NEO-D0 etc. seem to be there (measured with a multimeter in continuity mode).
So what do you suggest to do next?
Regards.
The Z80 seems to be already replaced by the previous owner. Today I've replaced the SM1 Chip but the error stays the same. All connections between Z80, SM1, NEO-D0 etc. seem to be there (measured with a multimeter in continuity mode).
So what do you suggest to do next?
Regards.