Hi All!
I'm working on a friends Power Play pinball. So this is the story: Games was working fine, then they had problems with that center pop up between the flippers. I believe it was not going up (I inspected and no visible burn or damage). So, I powered the game on and watched the led, only got one flash . Tried again and got 7 flashes but no displays. Tried again and one flash. Tried again and 7 flashes then it would keep repeating again with 7 flashes. Very intermittent.
I checked all voltages, and they were good.
Ok, so I pulled off all plugs on main board except plug with voltages. Same thing. Very intermittent. 1 flash, 7 flashes, 7 flashes repeating .
Sockets on main looked ok. Battery is off board, no corrosion. So I'm thinking main board.
Get the main board home, hooked up my computer power supply with 5, 12 volts to test main board. It will boot fine every time.
I waited a day and tried it again several times. The leds always flash 7. WOrks perfect on test power supply.
Now I'm wondering what the issue is? Regulator board?
Any suggestions?
John