cowboy255
Member
I got a brand new Happ switching power supply with the Arcadeshop adapter for my Stern/Konami Super Cobra. The game was running well enough with the old PCB power supply board but things were getting glitchy so upgrade PS time.
Problem I have is adjusting the new supply. Initial under load measured +4.8v but way over on the +12, which measured 14.3V. Even adjusting down and bottoming the supply out to +4.3V I barely got the +12V end down under +14V to +13.8V. Obviously that isn't gonna work out.
Bad switching power supply? I measured at the PS outputs and got near like readings on the multimeter. Set dead on at +5V the +12 output was way high near +15V.
Suggestions?
Problem I have is adjusting the new supply. Initial under load measured +4.8v but way over on the +12, which measured 14.3V. Even adjusting down and bottoming the supply out to +4.3V I barely got the +12V end down under +14V to +13.8V. Obviously that isn't gonna work out.
Bad switching power supply? I measured at the PS outputs and got near like readings on the multimeter. Set dead on at +5V the +12 output was way high near +15V.
Suggestions?