How to turn up voltage on Peter Chou

Fatality83

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I just put an MK4 pcb in my cabinet which has a 6 in 1 switcher. I noticed that the screen gets wavy at the settings menu of mk4. Almost looks like the screen rolls around the edges. It barely does it but it is noticeable. Makes it look like you are tripping. I also noticed it doing it on MK1 game play. Sometimes when playing mk4 in the level with the rain, some of the sound effects get missed or cut short. Not sure if this is normal or something else is causing this. I wanted to test the voltage at the peter chou and when I touched the probes to the power supply 12 volts positive and to the ground, the game shut off. For a minute or two, only the marquee would come on. I unplugged it and removed the two fuses from the isolation transformer. Eventually it started working again. Not sure exactly what happened. I had the test meter on dc 200. The game was on. I wanted to test the voltage because I have 4 fans hooked up to the power supply and I wonder if they were draining voltage. I believe that all my issues are because of a low voltage issue. Any ideas how to turn the voltage up on the peter chou? Do I turn the know towards the H?
 
normally clockwise turns up the juice, personally i'd pull that peter chu and set it on fire/use for target practice/load with m80's..... ect... and replace it with a happ power pro.
 
Is it a screw terminal type or computer style power supply? Is it a genuine Peter Chou or is it another brand?
 
it is a screw type connector. There is a knob to turn the voltage up with an arrow which wraps around and points to an H. The knob was all the way towards the H.
 
Four 12 volt fans connected to a screw terminal power supply? That sounds like too much of a load on the 12 volt line. The typical screw terminal power supply is only good for a 2 amp max draw on the 12 volt line.

You are likely overloading the power supply and may have damaged it.
 
I just wanted to keep it cool. Two of the fans are pretty small, like around 2 inches and I wanted to make sure it stayed cool. I wasn't really thinking about damaging the power supply by overloading it at the time. Would it be ok with two fans? It hasn't been turned on with all the fans for too long so maybe the PS is still ok?
 
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I just wanted to keep it cool. Two of the fans are pretty small, like around 2 inches and I wanted to make sure it stayed cool. I wasn't really thinking about damaging the power supply by overloading it at the time. Would it be ok with two fans? It hasn't been turned on with all the fans for too long so maybe the PS is still ok?

it's worth a try with 1-2 fans, you only really need 1 anyways if any. these machines were ment to get pretty warm, I personally only have 1 fan because of Killer Instinct.
 
someone once told me that because of the wood being so thick it held the heat in the cabinet and heat is what causes the capacitors to go bad and other issues. I was just trying to prevent it. I guess I will unhook two and just stick with leaving two in there.
 
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