Galaga help needed

gatordad

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I have no sound, no coin, no test switch, no control panel. unplayable

Board is tested and know to be good.

I have 5.08 at the board
All fuses check out good

I checked for continuity from the cp and coin door back to the harness connector all appears to be good,

It does have a rapid fire board can those go bad causing this?

Any ideas would be helpful
 
If everything else works but inputs/outputs (you have video, demo play, etc...) then check/clean the dirty pins on the 06xx chip on the CPU board.

If that's not it, then check/clean the 07xx, 52xx, and the 54xx chips on the CPU board.
 
If everything else works but inputs/outputs (you have video, demo play, etc...) then check/clean the dirty pins on the 06xx chip on the CPU board.

If that's not it, then check/clean the 07xx, 52xx, and the 54xx chips on the CPU board.
It was just given the once over all socketed chips removed and cleaned and the
board worked fine in another test setup it;s something in my cab
 
It was just given the once over all socketed chips removed and cleaned and the
board worked fine in another test setup it;s something in my cab

Double check your wiring - sounds like you have a missing ground somewhere. Make sure the ground from your control panel is hooked up.

-Ian
 
Promise not to laugh.




After I put the board back in I put the harness connector on the board backwards.
I said a few choice words cause I wasted about 45 minutes metering all of my connections.
I did find a bad pin in one harness so it wasn't a complete waste
 
Last edited:
Promise not to laugh.




After I put the board back in I put the harness connector on the board backwards.
I said a few choice words cause I wasted about 45 minutes metering all of my connections.
I did find a bad pin in one harness so it wasn't a complete waste

I'm sure everyone does something like that at least once.
 
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