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General| Brand | uher |
|---|---|
| Model | 724 Stereo |
| Category | Stereo System |
| Language | English |
Describes the components and assembly of the take-up and unwinding clutch mechanisms.
Procedure for checking and adjusting clutch tension and braking force.
Instructions for adjusting the vertical position of the clutch assembly.
Procedure for checking and adjusting the driving wheel clutch pressure.
How to check and adjust the left and right hand clutch brakes for proper operation.
Adjusting brakes on clutch brake plates for tape tension in fast forward/rewind.
Procedure for measuring the tape drive force using a spring balance.
Adjusting pressure roller to capstan for correct tape drive force.
Checking and adjusting the fast forward and rewind operation.
Step-by-step instructions for replacing drive belts in the mechanism.
Adjusting the speed change mechanism and motor pulley for tape speed selection.
Adjusting the tape guide stud and inner tape guide for proper tape path.
Procedure for adjusting the sound head using a test tape.
Guidelines for lubricating sintered bearings and friction surfaces.
Procedures for cleaning tape heads, guides, and drive belts.
Method for measuring weighted noise voltage using an AF voltmeter.
Adjusting short-circuit contacts for correct operation in different modes.
Adjusting the tape-end cutout device for automatic stop function.
Adjusting the equalizer switch for different tape speeds.
Key technical specifications including tape speeds, frequency response, and signal-to-noise ratio.
Details component value changes for the output stage.
Details component value changes for the output stage.
Details component value changes for the output stage.
Details component value changes for the output stage.
Recommendations for improving tape run at the end of tape with small reels.
Addresses failure of Darlington transistors in the output stage due to oscillation.
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