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need help with "Count-down" pinball machine i repaired the MPU board but the displayed don't light up so most likely there's no voltage going to them. another thing is where do i put the pin-balls? there are 1 smaller pinball in the coin tray and 1 larger pinball in the coin try, where do i put...

thank you thank you for the quick response, so far i cleaned it and rewired the dead traces and also replaced a couple transistors, however for the connector traces im afraid to us sand paper on them, i might be wrong about this but the connectors are totally eaten away i cant solder anything...

i need help repairing Gottlieb Cout-down MPU 1 board hello i bought a countdown pinball machine, the only bad thing is that the battery mounted on the mpu board has totally corroded a couple connector traces, there is no more copper left on the connectors. i need help on how to repair/replace...