milkit
New member
Won an off road challenge at auction, it was on during bidding. Get it back home and it will not power on.
I can hear/see the monitor power up, the power supply comes on for a split second then turns back off. The board does not look to be getting power, no LEDS light up or anything.
Unplug the jamma harness, power supply boots, stays on, etc. I checked voltage and its getting 5.05 on 5v and 9.5ish on the 12v. -5 on the -5v but I only get those voltages when I use ground port 1 or 28 on the harness. If I use port 2 or 27 there is almost no voltage at all. I do not know if thats normal as I have never paid attention to it, just thought I'd make note.
Any clues where to start? Arcade wiring knowledge fairly slim... but I am hoping I can get it working!
I can hear/see the monitor power up, the power supply comes on for a split second then turns back off. The board does not look to be getting power, no LEDS light up or anything.
Unplug the jamma harness, power supply boots, stays on, etc. I checked voltage and its getting 5.05 on 5v and 9.5ish on the 12v. -5 on the -5v but I only get those voltages when I use ground port 1 or 28 on the harness. If I use port 2 or 27 there is almost no voltage at all. I do not know if thats normal as I have never paid attention to it, just thought I'd make note.
Any clues where to start? Arcade wiring knowledge fairly slim... but I am hoping I can get it working!