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Black rose - coil and switch column problem ?


Whitewater

Question

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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Edited by Whitewater
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5 answers to this question

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Take the wire off the coil that keeps kicking, put in switch test and from under the playfield with your fingers work every switch especially the ones in the next column to the right of the effected one. Note each switch is working and not 2 switches or the wrong switch coming on.

 

The machine will not register a faulty switch till it has failed for 50 balls.

 

Look at the harness around where the playfield prop holds the playfield up. It runs extremely close on Black Rose through memory.

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Update

 

Still all the same issues:

 

:confused:flippers not working

:confused:column 2 switches not working

:confused:one coil firing randomly (when a game is started)

 

however when I turn machine on it comes up with error - check left flipper switch, check right flipper switch, check right upper flipper switch

 

Any suggestions would be appreciated

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Update. I think I've solved the puzzle. The ramp coil issue was related to a flaky switch. The column of switches not working could be due to a GI light that had shorted to earth. I've sent the cpu board off to be repaired :)
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