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MM-1200
Manual
Ampex MM-1200 Manual
Multichannel tape recorder/reproducer
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Manual
(325 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
List of Illustrations
List of Tables
Description
General
Tape Transport Assembly
Supply and Takeup Reel Assemblies
Pinch Roller Assembly
Tension Sensor Assembly
Location of Components
End-Of-Tape Arm and Threading Switch Assembly
Tape Lifter Assembly
Search-To-Cue/Tape Timer Accessory
Head Assembly
Transport Control Assembly
Motor-Drive Amplifier Assembly
Electronics Assembly
Control Box Assembly
Meter Panel Assembly
Power Supply
Optional Equipment
Specifications
Installation
Equipment Sitting
Unpacking
Power Requirements
Cable Connections
Initial Adjustments
Input Signal Setup
Input/Output Connector Panel
Output Signal Setup
Balanced Output
Unbalanced Output
Sync Transfer Switch
Search-To-Cue and Tape Timer
Capstan Servo PWA
Tape Speeds for Various Input Frequencies
Operation
Controls and Indicators
Speed Selection
Variable Speed Mode
Operating Procedures
Making a Recording
Tape Threading Path
Head Usage for Different Operating Modes
Fast Winding
Tape Lifter Defeat
Theory of Operation
Audio Electronics
Record
Block Diagram
Record Signal Path Partial Schematic
S/Sync and Repro Signal Path Partial Schematic
Individual Channel Audio Switching
Audio Control Partial Schematic
Master and Standby Monitor Audio Switching
Audio Switching Bus Levels
Status Display Circuits
Bias Amp Module
Record Amplifier
Reproduce Amplifier
Transport Control
Stop and Braking Logic
Stop and Braking Logic Partial Schematic
Break Release
End of Tape
Record Stop
Dynamic Braking
Tape Lifter Logic
Lift Defeat Logic
Play Logic
Record Logic
Play and Record Logic Partial Schematic
Fast Forward Logic
Rewind Logic
Tape Tension Control and Servo
Tension Error Amplifier
Fast Forward and Rewind Logic
Play/Record Mode
Rewind Mode
Fast Forward
Tension Servo Circuit Partial Schematic
Tape Timer Block Diagram
Search-To-Cue Block Diagram
Reel Motor Drive Amplifiers
Capstan Servo
Block Diagram Description
Capstan Servo Block Diagram
Capstan Phase Comparator, Typical Waveform
Tension Servo Circuits Partial Schematic
Maintenance
Test Equipment
Cleaning
Demagnetization
Lubrication
Maintenance Adjustments
Motor Drive Amplifier
MDA PWA Test Point Location
Tension Sensor Arm Calibration
Tape Tension Adjustments
Positioning Tension Sensor Arm
Mechanical Adjustments
Takeup Reel Brake Adjustment
Transport Adjustment Points
Supply Reel Brake Adjustment
Transport Brake Torques
Capstan Servo Motor
Tape Lifter Assembly Adjustments
Pinch Roller
Pinch Roller Adjustment
End of Tape Arm
Audio Adjustments
Tension Arm Dashpot Assembly
Distortion Measurement
Noise and Erasure Depth
Bias Amp Module Alignment
ASA Weighted Filter
Troubleshooting
Possible Corrective Actions
Causes of Noise
Causes of Distortion
Causes of Flutter
Audio Switching
Audio Signal
Reel Motors
Transport Disassembly
Capstan Motor
Tension Sensor
End-Of-Tape Arm and Tape Threading Switch
Search-To-Cue and Tape Timer Assembly
Parts Lists and Schematics
Indentured List of Assemblies
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Multichannel recorder/reproducer (325 pages)
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