Firepower
Williams, 1980You're currently viewing posts by Pinsider racingpin.
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You want to try the following:
1) With machine off .. pull the batteries. Wait 15 minutes and turn it on. See if you can get to boot. Shut the machine off and put the batteries in and restart the machine.
2) Re-seat the prom chips located in the bottom left of the CPU board.
3) Make sure the CPU/Driver boards are mounted tight to the backboard and to each other. You don't want any vibration to mess with that connection.
Mike V.
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Marietta, GA