Table of Contents
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Table of Contents
Related Manuals for uher VARIOCORD 63
Summarization of Contents
1.1 Transport Mechanism
1.11 Pause Operation
Explanation of the pause function and its associated components.
1.12 Start Operation
Description of tape threading and transport during startup.
1.13 Fast Forward Operation
Procedure and mechanism for fast forwarding the tape.
1.14 Rewind Operation
Explanation of the rewind function and its operational mechanics.
1.3 Sensing Lever Check and Adjustment
1.31 Checking Sensing Levers
Steps to inspect the sensing levers for correct positioning.
1.32 Adjusting Sensing Levers
Instructions on how to adjust the sensing levers for proper operation.
Appendix to Service Instructions
1.15 Rewind Modification
Details on a modification affecting the rewind function's clutch moment.
1.4 Tape Tension Comparator Check and Adjustment
1.41 Checking Tape Tension Comparator
Steps to measure unwinding and winding tape tension.
1.42 Adjusting Tape Tension Comparator
Instructions on how to adjust the tape tension comparator settings.
1.5 Fast Forward and Rewind Function Check and Adjustment
1.51 Checking Fast Forward and Rewind Functions
Steps to verify the proper functioning of fast forward and rewind.
1.52 Adjusting Fast Forward/Rewind Control Lever
Instructions for setting the position of the control lever for these functions.
1.6 Wind-On Clutch Check and Adjustment
1.61 Checking Wind-On Clutch
Steps to verify the operation of the wind-on clutch.
1.62 Adjusting Actuating Lug on Actuating Lever
Instructions for adjusting the actuating lug for clutch operation.
1.7 Brake Check and Adjustment
1.71 Checking Brakes
Steps to inspect the brake operation in different modes.
1.72 Adjusting Brakes
Instructions on how to properly adjust the brake mechanisms.
1.8 Friction Wheels and Drive Belts Replacement
1.81 Replacing Left-Hand Friction Wheel
Steps for replacing the left-side friction wheel.
1.82 Replacing Right-Hand Friction Wheel
Steps for replacing the right-side friction wheel.
1.83 Replacing Friction Idler
Instructions for replacing the friction idler component.
1.84 Replacing Drive Belt for Left-Hand Friction Wheel
Procedure for replacing the drive belt connected to the left friction wheel.
1.85 Replacing Drive Belt for Digital Counter
Steps for replacing the drive belt that operates the digital counter.
1.9 Tape Speed Selector Check and Adjustment
1.91 Checking Tape Speed Selector
Steps to inspect the tape speed selector for proper alignment.
1.92 Adjusting Tape Speed Selector
Instructions on how to adjust the tape speed selector mechanism.
2.1 Pressure Roller and Capstan Check and Adjustment
2.11 Checking Pressure Roller and Capstan
Steps to verify the pressure exerted by the roller on the capstan.
2.12 Adjusting Pressure Roller and Capstan
Instructions on how to adjust the pressure roller's contact.
2.2 Pause Control Check and Adjustment
2.21 Checking Pause Control
Steps to inspect the pause control's functionality.
2.22 Adjusting Pause Control
Instructions on how to adjust the pause control system.
2.3 Tape Guides Check and Adjustment
2.31 Checking Tape Guides
Steps to inspect the alignment of the tape guides.
2.32 Adjusting Tape Guides
Instructions on how to adjust the tape guide positioning.
2.4 Sound Heads
2.41 Erase Head Adjustment
Procedure for replacing and adjusting the erase head.
2.42 Recording-Playback Head Adjustment
Instructions for replacing and adjusting the combined record/playback head.
2.43 DIA-Pilot-Head Adjustment
Procedure for replacing and adjusting the DIA-Pilot head.
2.5 Contact Spring Assemblies and Switches Check and Adjustment
2.51 Short-circuit Contact K1 Adjustment
Adjusting the short-circuit contact K1 for proper operation.
2.52 End-Of-Tape Stop Contact K2 Adjustment
Adjusting the end-of-tape stop contact K2.
2.53 Equalizer Switch Adjustment
Instructions for adjusting the equalizer switches.
2.6 Lubrication and Maintenance
2.61 Lubrication Procedures
Details on lubricating bearings, sliding parts, and friction points.
2.9 Regulator Adjustment (Variocord 23/63/63 S/63 DIA)
2.91 R 53 Recording Level Indication
How to set the R 53 control for the recording level indicator.
2.92 RF Premagnetization
Adjusting RF premagnetization for optimal frequency response.
2.93 R 54 Balancing and R 55 Final Stage Current
Balancing and setting quiescent current for the final stage.
2.94 Measuring the Noise Voltage
Method for measuring the noise voltage according to DIN standards.
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