I just bought my first arcade, Area 51 / Maximum Force duo machine. It worked great for about a week, then started throwing watchdog resets. I swapped the hard drive and decided it was a power supply problem. (Putting the hard drive on a separate power supply made it run much better. Also, tweaking the 5v supply up/down changed how often it reset.)
I started checking stuff with my multimeter, but after switching between VDC mode and VAC mode with the meter on the 5v rail, the board shut down. I haven't been able to get the system to power up in attract or test mode since then.
I assume I fried something, but I don't know what. The monitor works, the power supply is sending the right voltage, and the board power light is on. But the bus light and the disk light just stay off.
Any suggestions to try to troubleshoot this?
System specs:
Random JAMMA cabinet retrofitted for light guns
Main board is Atari Cojag 68k A053538 (dual board)
Modded with Area 51 / Maximum Force duo kit
Original board manual here: http://www.emuparadise.org/MAME/manuals/arcade/area51.pdf
I started checking stuff with my multimeter, but after switching between VDC mode and VAC mode with the meter on the 5v rail, the board shut down. I haven't been able to get the system to power up in attract or test mode since then.
I assume I fried something, but I don't know what. The monitor works, the power supply is sending the right voltage, and the board power light is on. But the bus light and the disk light just stay off.
Any suggestions to try to troubleshoot this?
System specs:
Random JAMMA cabinet retrofitted for light guns
Main board is Atari Cojag 68k A053538 (dual board)
Modded with Area 51 / Maximum Force duo kit
Original board manual here: http://www.emuparadise.org/MAME/manuals/arcade/area51.pdf
