sheep_nova
Champion
Sega blast city Power supply
- Thread starter sheep_nova
- Start date
DelsArcade
Enthusiast
I'm curious as to what symptoms you are experiencing. Looks like you have the audio portion of the power supply. On mine and it pretty much imploded for some unknown reason. So, I'm starting from the ground up and rebuilding mine.
Cap kit for the audio portion:
https://www.arcadepartsandrepair.co...ga-blast-city-model-3-sound-pcb-cap-kit-105c/
But if it's not working, I would look at the voltage regulator and 2 fuses.
Del
Cap kit for the audio portion:
https://www.arcadepartsandrepair.co...ga-blast-city-model-3-sound-pcb-cap-kit-105c/
But if it's not working, I would look at the voltage regulator and 2 fuses.
Del
These aren't hard. Echoing everything Del said, caps, VR's, fuses solve 99% of issues. If it were in the US I'd happily take a look at it for you. I redo a *lot* of power supplies.
DelsArcade
Enthusiast
@rewrite Need to pick your brain on mine. Did a simple cap kit on both PCBs. Power was fine and worked. Audio, not so much. Lost audio completely after the recap. Powered down and checked and saw both 5A fuses blown on the audio PCB. Replaced them (also checked voltage regulator out of circuit just in case because fuses tend to blow for a reason). Put it all back and fired it up! Success! Audio was back. But... I turned it up on both the PCB and Blast City knob. And... SMOKE. Lots of it. Turned it off and called it a night. Going to look at it again later today.
P.S. - Reason I capped it was because it was never done and had all original parts. Also, my monitor was acting wonky, not turning on, horizontal (not vertical) collapse, etc. It was rock solid now that I recapped the power though.
Back to the drawing board!
Del
DelsArcade
Enthusiast
Yeah, going to pop it open tonight. Didn't seem to find any schematics on it, although I did see there is a wiring diagram.