I recently picked up a Gyruss and Time Pilot, and started working on the Gyruss. When playing the game, you know the ship moves in 360 degrees. But I couldn't get the ship to move on the right side from 12 o'clock to 6 o'clock. I thought maybe the microswitch on the joystick was bad, but I connected the Time Pilot control panel (identical layout) to the Gyruss and still the same problem. Also, I tested the Gyruss control panel on the Time Pilot, and the joystick worked fine, moving the Time Pilot ship 360 degrees.
I finally got to the back to check out the PCB, detached and then reattached the PCB edge connector. Now, I'm able to get full 360 degree movement with the joystick. But now I have no power to the coin door, which I did have before. Coin door lights won't light up, and hitting the
trigger rarely registers a credit.
Using my multimeter on the power supply, when I measure -5v at 5.0, the +5v is around 5.3 or .4 and the +12v is around 12.3. If I dial the +5v back, the monitor colors start acting up.
Also, separate issue: not getting any sound out of left speaker. Top pot that controls it, turned it left or right, nothing coming out of left speaker.
So....I'm a total newbie here. I was doing mostly cosmetic cleanup to the cabinet, which looks great but was dirty (I can't believe people let arcade games get to a sorry state, the Time Pilot cabinet is even worse!). But I just started getting into trying to troubleshoot with my limited knowledge.
What should I check out? Should I get a new power supply? Is the edge connector bad? How tight should the edge connector be on the PCB?
Thanks in advance!
