Warp Warp power supply - need to get in spec AC volts

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Warp Warp power supply - need to get in spec AC volts

Found an old thread on this topic, but no definitive fix, so thought I'd throw it out again.
Warp Warp power supply, unlike other RockOla games, doesn't have a switcher inside it's power supply, but produces 15VAC and 25VAC direct to the pcb. Similar to Pac-Man from what I've read; the board does the conversion to DC?

I digress. I know just enough about AC vs DC to know I'm stuck. Is there a way to use a modern switching PS to get this game what it needs? Or can anyone chime in with a clean fix to get this game running again?
 
No one ever successfully fixed one of these power supplies?
 
from a quick look at the manual it looks like a transformer with many taps and can be wired for 120 or 240. have you tested the output of the taps on the transformer?? if they are in spec than it looks like the game board is rectifying and regulating the voltage so you would have to rebuild it which is caps and other potential parts. i should be able to make a cap kit but the rest of the parts would need testing to see what is actually bad.
 
from a quick look at the manual it looks like a transformer with many taps and can be wired for 120 or 240. have you tested the output of the taps on the transformer?? if they are in spec than it looks like the game board is rectifying and regulating the voltage so you would have to rebuild it which is caps and other potential parts. i should be able to make a cap kit but the rest of the parts would need testing to see what is actually bad.

hey man..thanks for chiming in. You are correct, depending on how the jumpers are set on the PS, it can run I think 4 different input/output variations. I've really only concentrated on the output plug that feeds the PCB so far, which led me to believe the transformer itself is the issue, since basically that PS only consists of the transformer and a handful of fuses. All the rectification does occur at the pcb itself. But you make a good point, let me see if any of the legs of the transformer are outputting what they are actually supposed to; there may be a way to switch some wires and still end up with the end result that is needed.
 
visiting this again

I'm resurrecting this old thread becasue somehow I've ended up pushing this to the side for over a year (wow). But diving back in here's the issue....

The Rock-ola power supply is supposed to output 15vac and 25vac to the pcb, which the pcb then rectifies to DC. I'm only getting 8.79vac out of the PS where it should be 15; but it is basically only a transformer and fuses.....nothing to rebuild. Manual pretty much points to faulty transformer and replacing it.

Has anyone found, or know about a viable replacement for this transformer that would output the two necessary voltages?
 

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I'm only getting 8.79vac out of the PS where it should be 15; but it is basically only a transformer and fuses.....nothing to rebuild. Manual pretty much points to faulty transformer and replacing it.

Are you sure the input line voltage is being selected correctly? 9vac is close to what you would get on the 15vac output if it were wired for 220vac in and you put in 120vac.
 
what are the readings on your other outputs? it looks like 2<>3 should be 15v and 2<>11 should be half that. measure these so we have full understanding. 14<>12 & 14<>15, 1<>3, 2<>11, 2<>3 etc.

I had an issue with my ms. pac transformer not outputting voltage. Might help if you decide to pull it out and test. I bet the transformer is fine.

 
Are you sure the input line voltage is being selected correctly? 9vac is close to what you would get on the 15vac output if it were wired for 220vac in and you put in 120vac.

Should be correct, as it was working prior, but I'll certainly double check it. Thanks for the tip!
 
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