Zenith Chassis 5638 (models 6S203, 6S222, 6S223, 6S229, 6S239, 6S241      Schematic and Parts List or Voltage Chart and Alignment info. Chassis 6B02 Schematic Chassis 5621 (models 6V27, 6V62 Schematic Voltage and Alignment Data Model 12-H090 Schematic Model L520 and L515 Schematic Model H725Z1 (Chassis 7G01Z1) Schematic