Space invaders help pls

Hi I got a nice taito si table it b&w the taito power supply keeps blowing the 2amp fuse :realmad:

I was told it's a jap board with 3 types of si in it ie one line at a time

You shot they stay still and the third I think normal si any help would be good

I really want to get this going as I have a colour si I'm fixing up as well

Both 3 layer boards I'm going to send my boards to qld the colour si just the shot and base bomb

And UFO don't make them right sound

Any help thanks

 

 

Moon base diagrams were the closest I could find on the net

 

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some pictures :)

 

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:)

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