Capcom: check driver board power connectors J9 and J12 for heat damage

Capcom driver boards suffer the same overheated power connectors as Williams and Data East games. The header pins at J9 and J12 often have thin solder and develop cracked joints, which heat up and brown the connector. If the game shows random faults whenever a solenoid fires, including a switch that seems to misbehave, inspect these two connectors and, if they are discoloured, replace both the header and the housing with new pins. Also reseat the connector near the transformer and check the fuses mounted on the cabinet side, and if solenoid or flasher power drops out partly or intermittently, check the coin door interlock switch.

Systems

• Capcom

Related tips

• Capcom driver boards use the same transistor style as later Sega/Stern
• Where the boards sit in a Capcom backbox
• Checking and reseating solid-state board connectors
• Zero cross error at power-up: replace the driver-to-CPU interconnect cable

Source: Pinball Repair help group!! (Facebook group)