Source:Zenith Electronics Corporation. Howard W. Sams & Co., Inc., Indianapolis, IN (1971)
Zenith Chassis 12A13C52, 12B13C52, 12B14C50, 12B14C52. Zenith Electronics Corporation. Howard W. Sams & Co., Inc. Includes coverpage photograph, includes full schematic review, remote control receiver alignment instructions, miscellaneous adjustments, detailed photographic description of the chassis as well as photographs, schematics and block diagrams for other parts of the COLOR TV set.