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Manuals
Brands
3M Manuals
Recording Equipment
79 Series
Instruction manual
3M 79 Series Instruction Manual
Professional tape recorder
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
For Sales Information
Table of Contents
General Description
General
Function
Equipment Description
Series 79 Recorder
List of Components
Signal Electronics Assembly
Display Panel
Remote Control Assembly
Isoloop Tape Drive
Power Supply
Optional Accessories
3M Brand Selectake
Conversion Kits
Input Transformers
3M Brand Smpte Code Generator
Transport Remote Control
Specifications
Performance Specifications
Equalization
Capstan Drive
Reel Drive
Installation
Receipt Inspection
Location Considerations
Outline Dimensions
Initial Setup
Input/Output Connector Wiring
Operation
Tape Threading
Operating Controls
Transport Tape Motion Operation
Monitoring
In/Out Monitor Switching
Recording
Reproduce
Cueing or Overdubbing
Editing
Maintenance
Field Service
Test Equipment
Preventive Maintenance
Test Equipment or Equivalent
Power Supply Check
Capstan Servo PC Board
Pulse Width
Capstan Speed
Tape Transport Adjustment, Top View
Tape Transport Adjustments, Bottom View
Logic and Bias Oscillator PC Board
Stop Tension
Mode Response
Play Tension
Edit Standby Torque
Transport Cover Plate Removal
Tape Sensor Adjustment
Forward/Rewind Pushout
Capstan Belt Adjustment
Capstan Idler Tracking
Capstan Idler Pressure Adjustment
Reel Height Adjustment
Capstan Idler Alignment
Signal Electronics Alignment
Head Shield Cover Adjustment
Tape Lifter Adjustment
Capstan Idler Linkage Adjustment
Bias Frequency Adjustment
Erasure Test
Record Head Azimuth Alignment
Normal Playback Alignment
Troubleshooting
Factory Repair Service
Troubleshooting Guide
Technical Description
Tape Transport Mechanical Functions
Transport and Logic Circuitry
Power Circuits
Tape Drive
Tape Threaded Condition and Standby
From Stop to Play
From Play to Stop
From Stop to Rewind
From Rewind to Stop
From Forward to Rewind
Forward/Rewind Logic
Braking Circuit
Tape Tension
Record Mode
Forward and Rewind Input Levels
Tape Runout
Fail-Safe
Mute Defeat Circuit
Capstan Speed Switch
Relays
Bias Oscillator
Capstan Servo
Capstan Servo Pulse Generation Sequence
Capstan Stop
Supply and Take-Up Motor Circuitry
Motor Drivers
Remote Transport Control Switches
Master Signal Electronics Switches
Tape Lifter Switch
Record Pushbutton
Cue Pushbutton
Flasher Circuit
Record Indicator
Runout Indicator
Function Assembly Switches
Signal Electronics
Decoder
Speed Select Logic
Reproduce Logic
Cue Logic
Monitor Logic
Bias and Erase Amplifiers
Reproduce Preamplifier
Line Amplifier
Record Amplifier
Cue Preamplifier
Schematics
Parts Lists
Ordering Replacement Parts
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Table of Contents
Troubleshooting
Troubleshooting
53
Factory repair service
54
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