Nagra IV-S Analog Audio Recorder Manuals

Manuals and User Guides for Nagra IV-S Analog Audio Recorder. We have 1 Nagra IV-S Analog Audio Recorder manual available for free PDF download: Service Manual

Nagra IV-S Service Manual (283 pages)

Portable analogue audio tape recorder

Brand: Nagra | Category: Recording Equipment | Size: 86 MB

Table of Contents
5
Introduction
6
Power Supply
7
External Power Supply
7
Danger of Reverse Polarization
8
Product View
9
Controls Description and Use
10
Tape/Direct Switch
10
Power Selection Switch
10
Main Function Selector
10
Light (Push Button)
11
Level Control
11
Reference Oscillator
11
Mikes/Line Switch
11
Mono/St Hs/Stereo Switch
12
Modulometer Mode Selection Switch
12
Pilot Frequency
12
Tc/Pilot Playback
12
Filter Switch
13
Modulometer
13
Tc/Pilot Indicator
13
Speed and Power Indicator
14
Headphones Output
14
Headphones Volume Control
14
Headphones Mode Selector
14
Tape Deck
15
Tape Speed and Standard Selector
15
Rewind and Fast Forward Switch
15
Tape Reels
15
Tension Rollers
16
Erase Head
16
Stroboscope Roller
16
Pinch Wheel and Tape Guide Control Lever
16
Connectors
18
Inputs
19
Ext. NRS
19
Outputs
19
Pilot
20
Line Outputs
20
Cue
20
Power Rack
21
Time Code Input/Output
21
Tape Speed and Standard Selection
22
Loading a Tape on the Recorder
23
First Time Operation
24
Recording with Microphone
24
Fast Forward/Rewind
24
Recording a Line Signal
25
Playing Back a Recorded Tape
25
Working with Headphones
25
Specifications
26
Service Manual
32
List of Tools and Materials
33
Motor and Capstan Assembly Replacement
35
Bearing Replacement
36
Capstan Assembly
37
Fast Rewind Pulley Replacement
38
Tension Rollers and Stroboscope Roller Replacement
39
Pinch Roller Replacement
40
Clutch Felt and Brake Felt Replacement
41
Turtable Bearings Replacement
42
Drive Belts Replacement
43
Tape Guides and Heads Replacement
44
Fixed Guides Replacement
44
Mobile Guide Replacement
44
Mechanical Alignment
45
Head Squaring and Height
45
Tension Roller Height
46
Tape Tension Alignment
47
Tape-Up Tension
47
Supply Tension
48
Final Check after Alignments
48
Pinch Roller Pressure and Position Alignment
49
Pinch Roller Position
49
Stroboscope Adjustment
49
Mechanical Drawings
50
Mechanical Parts List
60
Audio Calibration
68
Measuring Equipment
69
Opening the Recorder
70
Stabilized Voltage
71
Tachometric Adjustment
71
Tape Speed Adjustment
72
Direct Chain
73
Gain Checking
73
Frequency Response Checking
73
Reference Generator
73
Modulometer Checking
74
Microphone Preamplifier
75
Microphone Power Supply
75
Line and Phones Amplifier, Headphones Switching
75
Loudspeaker Amplifier
75
Playback Chain
76
Demagnetize the Heads before Using a Test Tape
76
Azimuth Alignment of the Playback Head
76
Playback Level
76
Head Gap Loss Correction or Frequency Response
77
Recording Chain
78
Record Head Azimuth
78
Bias Frequency
78
Bias Level
78
Recording
80
Level Preset
80
Frequency Response
80
Antidistortion
81
Limiter
82
Recording Level
82
Crosstalk
82
Erasing
83
Tachometric and Bias Residue
83
Pilot Chain
84
Pilot Head Azimuth
84
Calibrations with Stationary Tape/Carrier Frequency
84
Cue Output
84
Pilot Level
85
Alarm
85
Clapper
85
Record and Playback
86
Crosstalk between Pilot and Audio Tracks
86
Pilot Noise Level on the Audio Tracks
86
Erasing by Recording a Carrier Frequency
86
Time Code Chain
87
TC Head Height
87
TC Record
88
Bias Voltage
88
TC Comparator
88
Common Mode Rejection
88
Playback at Half Speed
89
Multifrequency Test Tapes
90
Composition of Test Tapes
90
Azimuth Test Tape
92
Circuit Adjustments
93
Time Code and Pilot
98
Mechanics
102
Front Panel
102
Operation of the Modulometer and Pilot Indicator
102
Electronics
103
Recording Format
104
Standardization
104
Distance between Heads
105
Keyboard Description
106
Display and Beep
109
Status Display Menu
110
Outher Status Available
111
Numerical Commands
112
Errors and Error Codes
115
Error Correction Modes
115
Keyboard Use
116
Changing the Display Mode
116
Execution of a Numerical Command
116
Selection of an Internal or External Time Code
116
Setting from an External Time Code
117
Increment User Bits
117
Internal Generator
118
Selection of Frame Rate
119
User Bits Setting
120
Setting of Modification of User Bits
120
Protection of Data
120
Using the Keyboard
120
Time Code or User Bits Modification
121
Setting Time Code or User Bits
121
Modify Time Code
121
Modify User Bits
121
Setting from External Time Code
122
Signals Available at the Output
123
Automatic Set from External
124
Using the Unit TC with the AATON Origin "C"
125
Checking the Time Code
125
Notes on the Origing "C"
125
Pilot Compatibility
127
QSIP Pilot Interface
127
Pilot Transformation
127
Modulation Meter
127
FM Pilot
128
Cue Device
128
Using the IV-S TC
129
How to Record a Time Code
130
Real Time (Actual Time of Day)
130
Synchronized Recording
131
Recording an External Time Code
131
Reading a Time Code
132
Use of the Unit in Video
133
Working with a Cable Link with One or more Cameras
134
Time Code in Film
135
The Playback Shoot
136
Signals Available at the Time Code Output
136
Playback of Time Code at a Speed Other than Nominal
137
Searhing for a Time Code on the Audio Tape
138
Searching for a Time Code Originating from an External Source
138
Power Supply to the Time Code Circuit
139
Memory and Clock Powering
139
Auto Selection
139
3 Days Back up
139
Time Code Specifications
140
Appendix "A" Drop Frame
141
Appendix "B" Software Evolution
142
Software Bulletin
143
Time Code Generator
143
Time Code Reader
144
RS-232 Communication
144
Miscellaneous
144
Modification
145
Accessories
147
Configurator
149
Mudulation Audio and Cue and Power Supply
149
Synchronization and Accessories
151
Mains Power Supply
153
Electronically Controlled Degausser
154
DSM Monitor
156
QGB - 10 1/2" Reel Adapter
158
QSIP Resolver Interface
160
QSIA AATON Interface
162
QSCM-2 Commentary Microphone with ALC
163
QSEF External Preamplifier with Balanced Input
165
QAGX-3 Switchable Crystal Pilot Generator 50-60 Hz
167
QSHZ Unbalanced High Impedance External Amplifier
168
QSLS Pilot Synchronizer
170
QSNES Accessory with Balanced Inputs and Outputs
172
QSQC External Parallel Connecting Unit
174
QSSC External Slide Projector Synchronizer
176
QSSF External Balanced Output Amplifier
178
QSV-2 Speed Varier
180
QTIM Tape Driven Timer
181
QLEN Tape Driven Counter
181
QRAC Tape Cleaning Blade
181
PA-4 Set of Rechargeable Cells
181
Technical Information
183
Improvement of Tachometric Residual Noise
184
New Tape Adjustments of the Unit with CCIR Equalization
185
Performance Obtained with Various Tapes
187
Mike/Line Switch
188
Signal Distortion at Low Frequencies
189
Modification of the Time Code Version into FM Pilot
191
Replacing the Time Code Board
191
Replacing the Time Code Head
192
Drawings
195
Improvement of CPU Reset, When Rapidly Switching Main Selector
197
Erroneous Time Code Operation When Working off Weak Batteries
204
Inhibition of the Time Code Recording
214
New Calibration Tapes
217
Modifications for 3M226, 3M250 and PEM468 Tapes
219
Calibration of the Recording Chain
219
Modifications of the Recording Preamplifier
219
Recording Amplifier, Correction of Gain Adjustment Range
224
Schematics
226
PC Boards Part Numbers
227
PC Boards Location
228
Schematic Diagrams and PC Boards Views
231
Synoptic Diagrams
276

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Nagra IV-S Analog Audio Recorder Manuals

Nagra IV-S Service Manual (283 pages)

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