space invaders - garbage on screen

cadillacman

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scored a space invaders... got ti cheap in a nice cab.

Upon checkint it out it didnt have any 5 or 12 volts...

found and repaired several cracked solder connections at the power supply board.

I have adjusted the +5, -5, and +12 to proper levels.


The game is messed up. I think i have a board issue or something.
Once on i get the constant "fire" sound and sometimes i will see the word credit in the rt lower corner. SOmetimes the credit number will scroll like 0 throug 9 and back over again..

The rest of the screen is just garbage.

Anybody run into this before?

Ive already checked and rechecked edge connectors, double checked voltages and grounds...

all header pins on the power supply board and on the audio board have just been reflowed.


haaalllppppppppppp
 
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