OTARI MTR-90 Manuals

Manuals and User Guides for OTARI MTR-90. We have 2 OTARI MTR-90 manuals available for free PDF download: Operating And Maintenance Manual

OTARI MTR-90 Operating And Maintenance Manual (115 pages)

MASTER TAPE RECORDER

Brand: OTARI | Category: Voice Recorder | Size: 17.93 MB

Table of Contents
2
Introduction
5
Otari Mtr-90 Master Tape Machine
5
MTR-90 Master Tape Recorder
7
Tape Transport Controls
8
Cue Button and Cue Control Knob
8
VU Meter Panel
9
MTR-90 Upper and Lower Circuit Card Cages
9
Installation
12
Preliminary
12
Inspection
12
Reproduce EQ Selection
15
Cue Level Attenuation Selection
15
Auto Locator and Remote Control Box
22
Connections
25
Remote Cable for Transport Logic
25
Two Remote Cables for Mode Switching
25
Logic Cable for Optional Auto Locator
26
AC Power Cord
26
NR Remote Connector Pin Assignment
28
Basic Operation and Functional Checkout
29
Transport Functional Checkout
29
Reel Installation
29
Powering up
29
Thread Tape
30
Initialize the Servos
30
Load the Servos
31
Tape Threading Path
31
MTR-90 Transport Features and Controls
32
Select the Tape Speed
33
Check Play Mode
33
Check Fast Winding Modes
33
Normal Cue Mode
33
Fast Cue Mode
34
Head Shields
34
Tape Unload
34
Spot Erase
34
Remote Control Box and Audio Electronics Functional Checkout
35
Remote Transport Controls
35
Speed Mode Selection
35
Remote Box Features
36
Speed Display and Coordinate Switches
37
Ready/Safe Switches
37
Record Button
37
Individual Channel Output Drive Selection
38
INPUT Mode
38
SEL-REP Mode
38
REPRO Mode
39
Master Output Drive Selection
39
Audio Alignment
41
General Description
41
Demagnetizing the Heads and Tape Guidance Path
41
Demagnetizing Caution
42
Cleaning the Tape Path
42
Repro Amp Alignment
43
Sync Amp Alignment
45
Bias Alignment
46
Record Alignment
47
Phase Compensation
48
Record Section
48
Gain Structure
49
Phase Compensation Adjustment
49
MTR-90 Block Diagram
50
Transport Alignment
51
Head Geometry
51
Repro Head Azimuth
51
Record Head Azimuth
52
Transport Cover Plate Removal & Replacement
52
Transport Deck Flip-Up
53
Replacement
53
Transport Cover Plate Removal
54
Swing Arm Travel
55
Swing Arm Travel Limit Adjustment
55
Tape Arming Solenoids
56
Fast/Forward/Rewind Damping Solenoids
57
Swing Arm Tension
57
Tape Lifter Mechanism
58
Tape Lifter Adjustment(S)
59
Brakes
60
Measuring Brake Tension
61
Brake Tension Adjustment Nut
61
Brake Tension Adjustment
61
Reel Turntable Height
62
Reel Turntable Height Adjustment
62
Reel Tension Servo
63
Upper and Lower Limit Adjustment
63
Preliminary Center Position and Gain Adjustments
64
Tape Tension Check
65
Reel Motor Tracking of Capstan
65
Fine Adjustment of Position and Gain
66
Reel Size Detector Adjustment
68
Capstan Servo
68
Output Waveform
69
Location of the Capstan Tachometer PC Board
69
Capstan Tachometer Adjustment
69
Adjustment of Capstan Control PCB Assembly
70
Adjustment of PLAY GAIN
70
Adjustment of PLAY DUMP
70
Adjustment of FAST GAIN and DAMP
70
Capsstan Control Circuit Board, Adjustments
71
Adjustment of Transport PCB Assembly
72
Adjustment of Master CPU PCB Assembly
72
Adjustment of I/O PCB Assembly
72
Adjustment of Cue Tone Filter
72
Output Waveform at the Test Point
73
Adjustment of Fast Wind Speed
73
Adjustment of Cue Speed
74
Adjustment of Bias Control PCB Assembly
74
Adjustment of Bias Output
74
Adjustment of Erase Output
74
Adjustment of Test Signal Level
75
Operation
76
General
76
Recording Initial Tracks
78
Playback of Initial Tracks
79
Sel-Rep Recording (Overdubbing)
79
Sel-Rep Recording (Punch-Ins)
80
Rehearsal of Overdubs and Punch-Ins
81
To End the Punch-In
81
Mixdown
82
Use of the Cue Button and Knob
82
Use of the Variable Speed Mode
83
Use of an External Speed Reference
83
About Smpte Location Control and Synchronization
84
Voltage Conversion
85
Frequency Conversion
85
BCD out
85
Serial I/O
86
Auto Locator
88
Auto Locator Front Panel Features
89
Tape Time
90
Locate Time
90
Stop Watch
90
Keyboard Numerals
91
Shift Left and Shift Right
91
Load
91
Memory Store
91
Memory Recall
92
+/- Key
92
Direct Store, Direct Search and All Clear
92
How to Cancel Memories
93
Zero Set
93
Search Zero
93
Search
94
Shuttle
95
Auto Rewind
96
Transport Controls
96
Examples of Auto Locator Operation
96
Store a Cue for Future Recall
97
Illegal Commands
99
16/24 Track Conversions
100
Circuit Descriptions
102
Playback Head and Preamp
102
Speed Selection and High Frequency Playback Equalization
102
Low Frequency Playback Equalization
102
Sync Playback
103
Output Stage
103
Input Circuitry
103
Audio/Bias Mixing Circuitry
104
Erase Head Driver
105
Reel Control Board
105
Maintenance
107
Transport Mechanical & Electro-Mechanical
107
Removing and Reinserting Printed Circuit Boards
107
Reel Motor Replacement
108
Brake Pad Replacement
109
Meter or Meter Lamp Replacement
109
Capstan and Tacho Roller Replacement
110
Head Shield Position Adjustment
110
Cleaning and Lubrication
111
Head Shield Screw (Worm)
111
Specifications
112
Tape Transport
112
Electronics
113
Physical
114
Accessories
114

OTARI MTR-90 Operating And Maintenance Manual (190 pages)

MASTER TAPE RECORDER

Brand: OTARI | Category: Tape Deck | Size: 50.75 MB

OTARI Categories

Recording Equipment Voice Recorder

VCR Measuring Instruments Music Mixer

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