(Topic ID: 154750)

Help with Attack from Mars


By crashnt20

3 years ago



Topic Stats

  • 17 posts
  • 8 Pinsiders participating
  • Latest reply 3 years ago by Neal_W
  • Topic is favorited by 1 Pinsider

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#1 3 years ago

I have an Attack from Mars that has no sound. I am trying to trouble shoot the machine. I was going to try and trouble shoot the boards by swapping them out with my Monster Bash. Is this a good idea? and if so how do I swap them out. What chips do I need to swap on the board.

#3 3 years ago

Which board should check first. The CPU board or the Audio Visual board

#9 3 years ago

looks like I have some work to do tonight. thank you for all the advice. I will check back with updates.
The AV board LED does not blink if maybe after a couple minutes occasionally and the classic startup tone does not sound when I turn on the game.

#10 3 years ago

I took a look at the board and could not see anything that looked like it is bad. I tried to check the voltage but unfortunately, I do not know how to do it. Here are some photos. If someone could give me some advice. Thank you. Sorry, I am still learning when it comes to the circuit boards.

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#12 3 years ago

Thank you so much zaza, for the instructions! I measured and pin 7 is 11.87 and pin 5 is 5.15. I do not know what that means. What are my next steps. Thank you again.

#14 3 years ago

No luck on switching the ribbon cables. The led light is supposed to blink slowly but it does not blink at all. Anything else I can try?

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