Hey all, could use a hand here, if anyone has a moment.
Helping a friend out, by installing the crystal mod, dipswitch mod, and case for a friend who had an already working CPS1 multi.
Voltage at the filter board is 5.05
C board is 92641C-1 w/battery (Swapped later during testing with a working 92641C-1 board with the battery removed.
We were testing the multi, using SF2HF rom that had been written to the multi before I touched it, and everything worked fine.
All dipswitches were off.
We powered down the cabinet, flipped on the dip switches for Demo Sound (C6) and Freeplay (C3, but I may have accidentally flipped C2 instead, as freeplay didn't activate)
We booted the game back up, everything was normal, and then suddenly there was corrupted graphics. Game still ran, sound still worked, but graphics were corrupted.
Powered down the cabinet and turned dipswitches back to off, and powered the cabinet back on. Corruption still present.
Wrote a new CPS1 game to flash memory, corruption still present.
Wrote a new CPS1.5 game to flash memory, corruption still present.
Pulled the board, did a complete re-seat on the multi, checked to make sure no jumpers were shorted, and replaced the Cboard with the working board w/out a battery notated above.
Graphic corruption still present.
So my question is this....if I did accidentally run the game with C2 dipswitch in ON, can anyone tell me what that might have done?
If I did get it right, and flipped C3, and freeplay didn't work, is there something that might have happened there?
I have a spare working multi, and a spare CPS1 SF2CE board to use as testers, so if swap testing is needed, I can do that, with no issues.
Thank you all for your guidance and time.