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High +12V when running at +5V
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Question
lobsterboi
Hi,
On a two of my cabinets when I set my PSU to 5V measuring from the PCB edge connector (slightly lower in circuit on logic chip) most of my boards the 12V is around 13-14V depending on the board, I replaced the PSU with a RT-125A on one cabinet and still exhibits the same behaviour, boards I've tested with are WB Monsterland (bootleg), Double Dragon and Tekken 3.
Any ideas why this would be happening, both cabs are lowboys and have a LAI to JAMMA harness.
Thx
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