Hey everyone,
I've been working on my Bally Paragon for a little bit now. It was in secure storage for a few decades, but it's in pretty good shape despite that. I've got everything working except the bottom left pop bumper.
Here's a picture of the coil
And heres a picture of the solenoid driver board diagram
What I've tested:
1. I put the machine in switch test mode and tested the bumper switch, it read it with no issue, and I double checked that it was displaying the correct switch number on screen
2. I put the machine in solenoid test mode, the bumper coil does not fire.
3. I manually fired the coil by grounding the Q2 transistor, the coil does fire reliably.
4. I removed the driver board and tested the transistor with a multimeter, diode reading was between .4 / .6, and was about the same as the rest of the transistors.
5. I did a quick test of the related diode and resistors, I came up with similar results to all other resistors and diodes. However, I wasn't able to find concreate information on how to do these test, so they may have been done incorrectly.
Additional Information:
After I removed the board to check the Q2 transistor, when I put the board back in, the bottom bumper coil was suddenly working. It fired in both sensor and solenoid testing modes, however, when I started a game it stopped working. When I rebooted the machine, it was no longer firing at all.
This is the last major issue this machine has, so please help me anyway you can so I can play a nice game of pinball.
Boulder, CO
