Replaced the chip with the battery a couple of years ago. Turned on today to be confronted with the blue screen of death. Any hints as what to do next?
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There are some cases where a PSU can still be bad despite showing good voltages. I would also check voltages at the JAMMA edge connector, clean the JAMMA edge pins and verify +5 and +12 wires are in the correct position. My Namco System 23 pcbs are programmed so that if they detect an anomaly with the voltage, they won't boot.Voltage is good