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Williams system 7 Cosmic Gunfight CPU is locked up, the 0 stays lit. Not sure what to check. I have a logic probe but never used it. Any help would be appreciated.
Does not matter - the first thing you check on any fault like this is correct voltages.
Also check the voltages on the chips - look at the schematic and see what they should be.
Does not matter - the first thing you check on any fault like this is correct voltages.
Also check the voltages on the chips - look at the schematic and see what they should be.