Ampex MM-1200 Manuals

Manuals and User Guides for Ampex MM-1200. We have 2 Ampex MM-1200 manuals available for free PDF download: Manual

Ampex MM-1200 Manual (325 pages)

multichannel tape recorder/reproducer

Brand: Ampex | Category: VCR | Size: 23 MB

Table of Contents
1
List of Illustrations
7
List of Tables
9
Description
11
General
11
Tape Transport Assembly
11
Supply and Takeup Reel Assemblies
11
Pinch Roller Assembly
12
Tension Sensor Assembly
12
Location of Components
12
End-Of-Tape Arm and Threading Switch Assembly
13
Tape Lifter Assembly
14
Search-To-Cue/Tape Timer Accessory
14
Head Assembly
15
Transport Control Assembly
15
Motor-Drive Amplifier Assembly
15
Electronics Assembly
16
Control Box Assembly
17
Meter Panel Assembly
17
Power Supply
19
Optional Equipment
19
Specifications
19
Installation
25
Equipment Sitting
25
Unpacking
25
Power Requirements
25
Cable Connections
26
Initial Adjustments
26
Input Signal Setup
26
Input/Output Connector Panel
26
Output Signal Setup
27
Balanced Output
27
Unbalanced Output
27
Sync Transfer Switch
27
Search-To-Cue and Tape Timer
28
Capstan Servo PWA
28
Tape Speeds for Various Input Frequencies
28
Operation
31
Controls and Indicators
31
Speed Selection
31
Variable Speed Mode
31
Operating Procedures
37
Making a Recording
37
Tape Threading Path
38
Head Usage for Different Operating Modes
39
Fast Winding
40
Tape Lifter Defeat
40
Theory of Operation
41
Audio Electronics
41
Record
41
Block Diagram
42
Record Signal Path Partial Schematic
43
S/Sync and Repro Signal Path Partial Schematic
44
Individual Channel Audio Switching
45
Audio Control Partial Schematic
47
Master and Standby Monitor Audio Switching
48
Audio Switching Bus Levels
49
Status Display Circuits
50
Bias Amp Module
52
Record Amplifier
52
Reproduce Amplifier
53
Transport Control
54
Stop and Braking Logic
54
Stop and Braking Logic Partial Schematic
55
Break Release
56
End of Tape
56
Record Stop
56
Dynamic Braking
56
Tape Lifter Logic
57
Lift Defeat Logic
57
Play Logic
58
Record Logic
58
Play and Record Logic Partial Schematic
59
Fast Forward Logic
60
Rewind Logic
60
Tape Tension Control and Servo
60
Tension Error Amplifier
60
Fast Forward and Rewind Logic
61
Play/Record Mode
62
Rewind Mode
62
Fast Forward
62
Tension Servo Circuit Partial Schematic
63
Tape Timer Block Diagram
65
Search-To-Cue Block Diagram
67
Reel Motor Drive Amplifiers
68
Capstan Servo
69
Block Diagram Description
69
Capstan Servo Block Diagram
70
Capstan Phase Comparator, Typical Waveform
72
Tension Servo Circuits Partial Schematic
73
Maintenance
87
Test Equipment
87
Cleaning
88
Demagnetization
88
Lubrication
89
Maintenance Adjustments
89
Motor Drive Amplifier
91
MDA PWA Test Point Location
92
Tension Sensor Arm Calibration
95
Tape Tension Adjustments
95
Positioning Tension Sensor Arm
97
Mechanical Adjustments
102
Takeup Reel Brake Adjustment
102
Transport Adjustment Points
102
Supply Reel Brake Adjustment
103
Transport Brake Torques
103
Capstan Servo Motor
104
Tape Lifter Assembly Adjustments
104
Pinch Roller
106
Pinch Roller Adjustment
107
End of Tape Arm
108
Audio Adjustments
109
Tension Arm Dashpot Assembly
109
Distortion Measurement
119
Noise and Erasure Depth
119
Bias Amp Module Alignment
120
ASA Weighted Filter
120
Troubleshooting
121
Possible Corrective Actions
121
Causes of Noise
121
Causes of Distortion
122
Causes of Flutter
122
Audio Switching
124
Audio Signal
124
Reel Motors
128
Transport Disassembly
129
Capstan Motor
130
Tension Sensor
132
End-Of-Tape Arm and Tape Threading Switch
133
Search-To-Cue and Tape Timer Assembly
134
Parts Lists and Schematics
137
Indentured List of Assemblies
138

Ampex MM-1200 Manual (325 pages)

Multichannel Recorder/Reproducer

Brand: Ampex | Category: Tape Deck | Size: 12 MB

Table of Contents
1
Paragraph no
2
- Section 1 Description
  11
Tape Transport Assembly
11
Head Assembly
15
- SECTION 4 THEORY of OPERATION (Continued)
  41
- Transport Control
  54
- Stop and Braking Logic
  54
- Initial Turn on
  54
- End-Of-Tape (Eat)
  56
- Record Stop
  56
- Dynamic Braking
  56
- Tape Lifter Logic
  57
- Lift Defeat Logic
  57
- Play Logic
  58
- Record Logic
  58
- Fast Forward Logic
  60
- Rewind Logic
  60
- Tape Tension Control and Servo
  60
- Tension Error Amplifier
  60
- Play/Record Mode
  62
- Rewind Mode
  62
- Fast Forward
  62
- Stop
  64
- End-Of-Tape
  64
- Tape Timer
  64
- Search-To-Cue
  66
- Reel Motor Drive Amplifiers
  68
- Capstan Servo
  69
- Block-Diagram Description
  69
- Circuit Description
  70
- Powersupply
  83
- 39-VDC Regulator
  84
- Bias Oscillator
  85
- 27-VDC Regulator
  85
- 5-VDC Regulator
  86
- Section 5 Maintenance
  87
- General
  87
- Test Equipment
  87
- Cleaning
  88
- Demagnetization
  88
- Lubrication
  89
- Scrape-Flutter Idler Lubrication
  89
- Maintenance Adjustments
  89
- Power Supply
  89
- 39-Volt Regulator Adjustment
  89
- 27-Volt Section
  89
- 15-Volt Section
  90
- Overcurrent Protection Adjustment
  90
- 5-Volt Regulator Adjustment
  91
- Motor Drive Amplifier
  91
- Transport Control
  91
- Preliminary Setup
  91
- Tension Sensor Arm Calibration 5-B
  94
- Normalizing Reel Servos
  94
- Tension Adjustments
  94
- Capstan Servo System
  98
- Search-To-Cue/Tape Timer
  98
- Checkout
  98
- Adjustment
  101
- Mechanical Adjustments
  102
- Takeup Reel Brake Adjustment
  102
- Brake Check and Adjustment
  102
- Brake Solenoid Air Damping
  103
- Supply Reel Brake Adjustment
  103
- Capstan Servo Motor
  104
- Tape Lifter Assembly Adjustments
  104
- Tape Lifter Solenoid Air Damping
  105
- Head Assembly
  105
- Pinch Roller 5'-20
  106
- Adjustment
  107
- End-Of-Tape Arm
  107
- Audio Adjustments
  109
- 7-1/2-Ln/S Reproduce Alignment
  109
- 7-1/2-15 In/S Record Alignment
  112
- In/S Reproduce Alignment
  115
- In/S Record Alignment
  116
- Distortion Measurement
  119
- Noise and Erasure Depth
  119
- Bias Amp Module Alignment
  120
- Troubleshooting
  121
- Possible Corrective Actions
  121
- Causes of Tape Speed Error
  121
- Causes of Noise
  121
- Causes of Distortion
  122
- Causes of Flutter
  122
- Flutter Troubleshooting Hints
  122
- Transport Control
  122
- Audio Signal
  124
- Reproduce Amplifier
  124
- Record Amplifier
  124
- Bias Amp Module
  124
- Power Supply
  124
- 5-60. Removal and Replacement
  125
- Control Box Assembly
  125
- Disassembly
  125
- 5-63 .. Toggle Switch Removal and Replacement
  125
- LE D Removal and Replacement
  128
- Reassembly
  128
- Reel Motors
  128
- Capstan Motor
  130
- Head Assembly
  130
- Tension Sensor
  132
- Pinch Roller Assembly
  132
- End-Of-Tape Arm and Tape Threading Switch
  133
- Search-To-Cue and Tape Timer Assembly
  134
- Tape Lifter Assembly
  134
- Power Supply
  135
- Motor Drive Amplifier Assembly
  135
- Meter Panel Assembly
  136

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Ampex MM-1200 Manuals

Ampex MM-1200 Manual (325 pages)

Table of Contents

Ampex MM-1200 Manual (325 pages)

Table of Contents

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