srarcade80
New member
I am at a complete loss here. My flipper solenoids are not firing on my Bally Spy Hunter. All the other play field coils work great. Here is my checklist of items I have checked:
- Coil resistance checks out good
- +46V at coils
- Getting all 7 LED flashes on MPU at startup
- Pulled coils and inspected them, very clean, no melting or anything
- Tested continuity between J1 on solenoid board to the coil, all good
- Tested the transistors on the solenoid board, all good
- Tested the diodes at the coils, all good
- Tested voltage on the MPU at R113, good there
- Flipper relay switch throws during solenoid self test but no firing
- Grounded Q15 on solenoid driver board, NO FIRING grrrr
I have a newly refurbished 2518-22 solenoid driver board, it looks to be in really good shape, components are testing good on it.
Any ideas?
- Coil resistance checks out good
- +46V at coils
- Getting all 7 LED flashes on MPU at startup
- Pulled coils and inspected them, very clean, no melting or anything
- Tested continuity between J1 on solenoid board to the coil, all good
- Tested the transistors on the solenoid board, all good
- Tested the diodes at the coils, all good
- Tested voltage on the MPU at R113, good there
- Flipper relay switch throws during solenoid self test but no firing
- Grounded Q15 on solenoid driver board, NO FIRING grrrr
I have a newly refurbished 2518-22 solenoid driver board, it looks to be in really good shape, components are testing good on it.
Any ideas?
