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General| Track System | 4-track, 2-channel stereo |
|---|---|
| Signal to Noise Ratio | 58dB |
| auto reverse | No |
| Type | Reel to Reel Tape Deck |
| Tape Speed | 3.75 ips, 7.5 ips |
| Reel Size | 7-inch |
| Wow and Flutter | 0.08% (7 1/2 ips) |
| Output | Line level |
| Input | 0.25mV (Mic), 50mV (Line) |
| Inputs | Line, Mic |
| Outputs | Line |
| Frequency Response | 30Hz to 28kHz (7 1/2 ips) |
Technical details including track system, heads, reel size, tape speed, motors, input/output, etc.
Mechanical specifications like tape speed deviation, wow/flutter, pinch roller pressure, reel/brake torque.
Electrical specifications like frequency response, signal-to-noise ratio, erase efficiency, cross talk.
Instructions for removing outer panels for access to internal components.
Steps for removing the head assembly from the tape deck.
Procedure for detaching and removing the capstan motor.
Steps to remove the capstan, flywheel, and related parts.
Instructions for removing the reel motor, including brake drum and retainer.
Guide for disassembling and removing the tension arm assemblies.
Diagram showing the location of tape transport components from the rear.
Procedure for replacing tape heads, including wiring connections.
Method for aligning heads visually using tape guides and screws.
Procedure for measuring and adjusting pinch roller pressure.
Method for measuring and adjusting brake torque for both reels.
Procedure for measuring and adjusting take-up torque for both forward and reverse.
Procedure for measuring tape speed using a test tape and frequency counter.
Steps for checking wow and flutter performance with test equipment.
Diagram and list of adjustment points on the amplifier PC boards.
Procedure for checking and adjusting the +23V DC power supply.
Fine adjustment procedure for playback head azimuth.
Steps for checking and setting maximum and specified output levels.
Adjusting bias for optimum recording over-bias.
Troubleshooting for power fuses blowing.
Diagnosing why the capstan motor doesn't rotate.
Troubleshooting excessive wow and flutter.
Troubleshooting for a completely inoperative amplifier section.
Diagnosing intermittent or absent playback audio.
Recommended cleaning procedures and fluids.
How and why to demagnetize tape heads.
Simplified schematic for the playback section with signal levels.
Visual breakdown of components with part numbers.
Lists of parts for various PC boards.
Explanation of screw and hardware coding conventions.
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