Neo Geo monitor on and off

Mr Do

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Donor 6 years: 2012-2013, 2015-2016, 2019, 2025
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Got a model 25K7191 chassiss that stay on between 10 and 15 minutes then the monitor goes out.
I then turn it off, then wait a few minutes, and then I turn it back on and the monitor is working.

Anything its notorious for to look at first?
 
monitor

So I ordered the fly and cap kit and filter cap.

But happen to find a cap kit on hand. I did the cap kit and as I was adjusting the monitor since it was showing a picture, the monitor went out again.
I gave until fly back arrives

When I get fly back and filter cap, I will change them and see outcome.
 
Last edited:
it's probably because your voltage regulator is bad and the B+ is pegging to the point of HV shutdown. I think when it hits about 170V it will shut down.

there's 2 flavors of voltage regulator -- 4 if you consider 2 of 19" and 2 of 25" (they run different voltages). in either case, just make sure you match up the numbers that's on your current one.

there's a K7000 sticky thread if you want more information about parts identification. I encourage you learn how to test B+.
 
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