Bally Electronic Pinball Repair Procedures
ORIGINAL Bally Electronic Pinball Repair Procedure manual F.O. 560 June 20, 1977. Replaces FO-512 & FO-513. Includes repair procedures and diagnostic information.
This is the 60 page factory repair manual #FO-560 for the very popular BALLY (and STERN) electronic coin-op games made from 1976 to 1977.
It has two sections of troubleshooting instructions for isolating problems to both the module and component level. Includes pictorial guide and parts lists (but not schematic diagrams) of all major electronic assemblies.
One of these books was shipped in every new BALLY machine made in this era, but most seem to have disappeared just when you need them most. This is the single most useful document for taking care of your 76-77 BALLY or STERN electronic pinballl machine.