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Video Game Repair/Nba Jam reboot issues


Hi There,

I just bought this Nba Jam machine.
But it's restarting all the time.

Sometimes it boots and runs for a few minutes. But sometimes it keeps rebooting.

When it keeps rebooting you hear this clicking sound (like it's rebooting constantly).

Could you help me with some advise?


Ok, this one looks relatively straightforward. First of all, if you have the ability, measure the +5VDC coming from the power supply. It should be around +5.2 or +5.3V. If it's less than that, you'll get the resetting issues that you're seeing.

To increase the voltage, on the power supply will be a plastic knob next to the power indicator LED. Turn the knob clockwise to increase the power, 1/2 of an inch at a time. Turn the machine back on and the problem should go away. If it does not, let me know and I'll go over an alternate fix.

Either way, we'll get you up and running!


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Brian Penzone


I can answer questions regarding coin-operated arcade game questions down to the logic board. Error codes, erratic operation, dead boards, I can help with them all. I can help with video monitors on a very limited and basic level only.


I have spent nearly 20 years as an avid arcade collector, and spent nearly 10 of those years as the lead tech for a large arcade operator, doing work for manufacturers and other coin-operated amusement companies around the globe. I maintain a good sized collection of arcade games, as well as a large inventory of spare parts for a wide range of arcade machines.

BA from The Ohio State University, Associates from DeVry University

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