1978 Bally
Bobby Orr
"Power Play"
Repair and Maintenance Log
Jeffrey Zweizig Jeff Zweizig Jeffrey Zweizig Jeff Zweizig
05/19/07: Acquired game. 05/25/07: Mini-Shop Job. The game could use a good teardown and cleaning, but I was anxious to get in some game time so I just took care of a few simple odds and ends. I replaced a lot of burned and/or #44 bulbs with #47 bulbs. Some sockets need repairing. The game was reprogrammed to my liking. Did some cleaning and a quick waxing. Adjusted some switches. New batteries. Finally, I moved the new PinLED score display from the player #1 to the credit position. I think the backglass looks better with the intensity of all the player score displays balanced.  
Display swapping, before and after. 05/30/07: Acquired and installed the missing right coin acceptor and cashbox. Fixed a chattering center thumper bumper. After trying to adjust the bumper switch to no avail, I discovered a cold solder joint on the switch capacitor. Some folks consider these capacitors to be unnecessary. So I just cut it out and the bumper works fine. 06/06/07: Fixed coin lockout coil (just a cold solder joint on the +43 volt bus back at the chime unit). 06/23/07: Rebuilt lower right flipper. This flipper was giving me problems from the start. The flipper could not withstand a ball hit when in the hold position. Having tested everything else, the high-impedance side of the coil appeared to be weak. I rebuilt the flipper and replaced the flipper coil. The flipper rebuild kit was from Pinball Resource. The only thing I did not like about this kit was the length of the set-screws. One comes uncomfortably close to the EOS switch. I shortened one of the set-screws on a grinding wheel. Power Play is a four flipper game. Note the additional pair of switch contacts for activating the upper flipper. These switch contacts are in addition to the flipper rebuild kit. The extra switch contacts are part #ASW-A10-45. 
Lower right flipper rebuild. Note the shortened set-screw uncomfortably close to the EOS switch. |