National SG-149F High Quality Service Manual

High quality reproduction of original factory service manual. The manual describes SG-149F AC/Batteroy powered radio-phonograph with cassette tape recorder. The manual includes circuit diagrams, parts catalog, specification and more. Refer to table of contents for more information.

• Parts Identification

• Disassembly Instructions

  • To Remove Chassis

  • To Remove Speaker

  • To Remove Phonomotor

  • To Remove Tweeter

• Schematic Diagram

• Circuit Board & Alignment Point – Radio

• Circuit Board & Alignment Point – Tape Recorder

• Alignment Instructions – Radio

• Circuit Board

• Adjustment of Level Meter

• Dial Cord Stringing Guide

• Alignment Instructions – Tape Recorder

• Mechanical Adjustment – Tape Recorder

• Tape Transport Operations

• Parts Identification – Tape Deck

• Exploded View – Tape Deck

• Tape Recorder Circuits

• Replacing Cartridge and Stylus

• Replacement Parts List

• Cassette Tape Recorder Replacement Parts List