First thing, check the fuses on the power board. Pull them and check with meter.

If ok, check the voltages at all the test points with a meter.

You can get the voltages from either Pinwiki or Clays Guides (if you have a copy)

rd

Yep.

Check the molex connectors there too. Really prone to failure.

rd

Is the key hanging inside the coin door?

Look for a little hook.

rd

You got a sweet deal, so you got a little dough in reserve, you may as well get all new gear and it'll go forever.

Get the Alltek combo kit, new MPU, lamp board, and solenoid board.

And get a new recifier board.

You can get it all from Ks Arcade, they are good guys.

https://ksarcade.net

rd