Hi,
I did 5v mod exactly as per http://www.mmmonkey.co.uk/consolised-mvs-cmvs-conversion-one-slot-mv-1fz/
The board (1MFZS) was working fine before the mod but now I get Z80 error when connecting 5v only and crosshatch screen when I also connect 12v... The screen is also flickering badly in both cases (ie. 5v only and 5+12)..
Could someone tell me where to start...? I double checked all the steps from the instructions and it seems like I did everything right...
I did 5v mod exactly as per http://www.mmmonkey.co.uk/consolised-mvs-cmvs-conversion-one-slot-mv-1fz/
The board (1MFZS) was working fine before the mod but now I get Z80 error when connecting 5v only and crosshatch screen when I also connect 12v... The screen is also flickering badly in both cases (ie. 5v only and 5+12)..
Could someone tell me where to start...? I double checked all the steps from the instructions and it seems like I did everything right...