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Black rose - coil and switch column problem ?
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Question
Whitewater
Hi guys
I have a mystery problem with my Black Rose.
1. When I turn on the game, I get no error message
2. When I start a game the flippers do not work and the 'davy jones locker' coil starts firing (about 10 seconds between firing)
3. When I go into test mode (solenoids) all coils work fine
4. When I go into test mode (switches) none of column 2 switches register
Things I have done
1. Tested all switches in column 2 for continuity to back of CPU board (no issues)
2. Replaced all diodes on column 2 switches
3. Swapped out the U20 chip
4. Swapped the whole CPU board into another game (no issues)
5. Sent the power driver board away for checking (no issues)
Now I don't know what else to do or check :017:
Any advice or suggestions would be greatly appreciated
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