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General| Tape Speed | 4.76 cm/s |
|---|---|
| Frequency Response | 20Hz to 20kHz (Metal tape) |
| Signal to Noise Ratio | 70dB (Dolby C) |
| Wow and Flutter | 0.04% (WRMS) |
| Track System | 4-track, 2-channel stereo |
| Type | Auto Reverse Cassette Deck |
| Heads | 3 (erase, record, playback) |
| Noise Reduction | Dolby B, C |
| Tape Type | Type I, Metal |
| Total Harmonic Distortion | 0.8% |
| Input | Line |
| Output | Line |
| Inputs | Line In |
| Outputs | Line Out |
| Motor | DC Servo Motor |
Steps to load a gauge and prepare the unit for adjustment.
Adjusting cam positions and reel motor speed for proper mechanism operation.
Adjusting head tilt, base stroke, height, and azimuth for optimal performance.
Adjusting back tension and tape speed for correct operation.
Adjusting tape speed and calibrating meter levels using test signals.
Aligning playback heads and calibrating output levels with test tapes.
Adjusting playback frequency response and bias for optimal audio quality.
Verifying the correct operation of Dolby NR circuits for B-Type and C-Type noise reduction.
Exploded views and parts lists for front panel and chassis components.
Exploded views and parts lists for various mechanism sub-assemblies.
Exploded views and parts lists for head, roller, and base assemblies.
Detailed circuit diagrams for amplifier and mechanism control sections.
Diagrams and pin assignments for microprocessors and integrated circuits.
Technical performance metrics including frequency response, SNR, THD, and wow/flutter.
Physical dimensions, weight, and power requirements of the unit.
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