I have been trying to get my Bally Vector back up and running after 25 years of being mothballed (kept in good dry conditions).
I am having some problems getting the machine up and running and would appreciate some help or advice.
I have full diagnostic manuals and spare boards and a fairly decent grounding in electronics.
My problem I think is a solenoid attached to Q4. I purchased both the Alltek Systems "Ultimate Solenoid Driver Board" and also the "Ultimate MPU board".
I suspected the coil that throws the ball into the play shute. The existing coil was showing 0.2 Ohms - ie shorting. I think it should be about 65 Ohms.
So I have replaced that coil .
Coupled with this the A2 Power transformer board had a blown regulator on the 43V DC line (I have replaced that board).
When I powered the machine up today and sent it through the diagnostics cycle the Q4 led on the Alltek board lit up red and stayed on.
I have been pouring through the schematics, I think Q4 goes to J1 Pin 5 which says "Outhole or 3 TopD.T (left)" - I then traced this through on the Playfield schema and it look like this then links to "solenoid expander relay" - could I be looking at a defective relay.
The game is dead - when I press the button on the front panel to start a game nothing happens.
Any advice appreciated before I start working through the wiring loom with a multimeter. If anyone has has similar issues and can re-focus me I appreciate some advice.
I am getting 43 VDC across both sides of the coil I have replaced.
I have attached images from the parts of the schema and a visual of the diagnostic LED on the Alltek board.
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