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Title: Bally 5500 error 21 Post by: resanberto on September 30, 2013, 06:50:43 AM Hello Slottechs,
I need help here with Bally 5500 error code 21-9 . I change comparitor and coin optic already with a new one. Tested al wiring also. Is this a mainboard issue? I never face an error 21-9 Best regards, Alberto |