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I presented myself with the dumb a** award this weekend. The reason for the apparent voltage problem was that I used AC versus DC. When I realized this mistake, I was able to "correct" the voltage to 5.2V. This answers my question about the power supply, but leaves me concerned the problem is...

I recently purchased a Galaga game that was in working condition. When the power is turned on the game appears to keep running through the self-test process. The screen flashes momentarily the self-test results (ROM and RAM are both OK) and then seems to repeat the whole thing again. When I...