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Manuals
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Nagra Manuals
Recording Equipment
IV-S
Service manual
Nagra IV-S Service Manual
Portable analogue audio tape recorder
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Table Of Contents
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Introduction
Power Supply
External Power Supply
Danger of Reverse Polarization
Product View
Controls Description and Use
Tape/Direct Switch
Power Selection Switch
Main Function Selector
Light (Push Button)
Level Control
Reference Oscillator
Mikes/Line Switch
Mono/St Hs/Stereo Switch
Modulometer Mode Selection Switch
Pilot Frequency
Tc/Pilot Playback
Filter Switch
Modulometer
Tc/Pilot Indicator
Speed and Power Indicator
Headphones Output
Headphones Volume Control
Headphones Mode Selector
Tape Deck
Tape Speed and Standard Selector
Rewind and Fast Forward Switch
Tape Reels
Tension Rollers
Erase Head
Stroboscope Roller
Pinch Wheel and Tape Guide Control Lever
Connectors
Inputs
Ext. NRS
Outputs
Pilot
Line Outputs
Cue
Power Rack
Time Code Input/Output
Tape Speed and Standard Selection
Loading a Tape on the Recorder
First Time Operation
Recording with Microphone
Fast Forward/Rewind
Recording a Line Signal
Playing Back a Recorded Tape
Working with Headphones
Specifications
Service Manual
List of Tools and Materials
Motor and Capstan Assembly Replacement
Bearing Replacement
Capstan Assembly
Fast Rewind Pulley Replacement
Tension Rollers and Stroboscope Roller Replacement
Pinch Roller Replacement
Clutch Felt and Brake Felt Replacement
Turtable Bearings Replacement
Drive Belts Replacement
Tape Guides and Heads Replacement
Fixed Guides Replacement
Mobile Guide Replacement
Mechanical Alignment
Head Squaring and Height
Tension Roller Height
Tape Tension Alignment
Tape-Up Tension
Supply Tension
Final Check after Alignments
Pinch Roller Pressure and Position Alignment
Pinch Roller Position
Stroboscope Adjustment
Mechanical Drawings
Mechanical Parts List
Audio Calibration
Measuring Equipment
Opening the Recorder
Stabilized Voltage
Tachometric Adjustment
Tape Speed Adjustment
Direct Chain
Gain Checking
Frequency Response Checking
Reference Generator
Modulometer Checking
Microphone Preamplifier
Microphone Power Supply
Line and Phones Amplifier, Headphones Switching
Loudspeaker Amplifier
Playback Chain
Demagnetize the Heads before Using a Test Tape
Azimuth Alignment of the Playback Head
Playback Level
Head Gap Loss Correction or Frequency Response
Recording Chain
Record Head Azimuth
Bias Frequency
Bias Level
Recording
Level Preset
Frequency Response
Antidistortion
Limiter
Recording Level
Crosstalk
Erasing
Tachometric and Bias Residue
Pilot Chain
Pilot Head Azimuth
Calibrations with Stationary Tape/Carrier Frequency
Cue Output
Pilot Level
Alarm
Clapper
Record and Playback
Crosstalk between Pilot and Audio Tracks
Pilot Noise Level on the Audio Tracks
Erasing by Recording a Carrier Frequency
Time Code Chain
TC Head Height
TC Record
Bias Voltage
TC Comparator
Common Mode Rejection
Playback at Half Speed
Multifrequency Test Tapes
Composition of Test Tapes
Azimuth Test Tape
Circuit Adjustments
Time Code and Pilot
Mechanics
Front Panel
Operation of the Modulometer and Pilot Indicator
Electronics
Recording Format
Standardization
Distance between Heads
Keyboard Description
Display and Beep
Status Display Menu
Outher Status Available
Numerical Commands
Errors and Error Codes
Error Correction Modes
Keyboard Use
Changing the Display Mode
Execution of a Numerical Command
Selection of an Internal or External Time Code
Setting from an External Time Code
Increment User Bits
Internal Generator
Selection of Frame Rate
User Bits Setting
Setting of Modification of User Bits
Protection of Data
Using the Keyboard
Time Code or User Bits Modification
Setting Time Code or User Bits
Modify Time Code
Modify User Bits
Setting from External Time Code
Signals Available at the Output
Automatic Set from External
Using the Unit TC with the AATON Origin "C"
Checking the Time Code
Notes on the Origing "C"
Pilot Compatibility
QSIP Pilot Interface
Pilot Transformation
Modulation Meter
FM Pilot
Cue Device
Using the IV-S TC
How to Record a Time Code
Real Time (Actual Time of Day)
Synchronized Recording
Recording an External Time Code
Reading a Time Code
Use of the Unit in Video
Working with a Cable Link with One or more Cameras
Time Code in Film
The Playback Shoot
Signals Available at the Time Code Output
Playback of Time Code at a Speed Other than Nominal
Searhing for a Time Code on the Audio Tape
Searching for a Time Code Originating from an External Source
Power Supply to the Time Code Circuit
Memory and Clock Powering
Auto Selection
3 Days Back up
Time Code Specifications
Appendix "A" Drop Frame
Appendix "B" Software Evolution
Software Bulletin
Time Code Generator
Time Code Reader
RS-232 Communication
Miscellaneous
Modification
Accessories
Configurator
Mudulation Audio and Cue and Power Supply
Synchronization and Accessories
Mains Power Supply
Electronically Controlled Degausser
DSM Monitor
QGB - 10 1/2" Reel Adapter
QSIP Resolver Interface
QSIA AATON Interface
QSCM-2 Commentary Microphone with ALC
QSEF External Preamplifier with Balanced Input
QAGX-3 Switchable Crystal Pilot Generator 50-60 Hz
QSHZ Unbalanced High Impedance External Amplifier
QSLS Pilot Synchronizer
QSNES Accessory with Balanced Inputs and Outputs
QSQC External Parallel Connecting Unit
QSSC External Slide Projector Synchronizer
QSSF External Balanced Output Amplifier
QSV-2 Speed Varier
QTIM Tape Driven Timer
QLEN Tape Driven Counter
QRAC Tape Cleaning Blade
PA-4 Set of Rechargeable Cells
Technical Information
Improvement of Tachometric Residual Noise
New Tape Adjustments of the Unit with CCIR Equalization
Performance Obtained with Various Tapes
Mike/Line Switch
Signal Distortion at Low Frequencies
Modification of the Time Code Version into FM Pilot
Replacing the Time Code Board
Replacing the Time Code Head
Drawings
Improvement of CPU Reset, When Rapidly Switching Main Selector
Erroneous Time Code Operation When Working off Weak Batteries
Inhibition of the Time Code Recording
New Calibration Tapes
Modifications for 3M226, 3M250 and PEM468 Tapes
Calibration of the Recording Chain
Modifications of the Recording Preamplifier
Recording Amplifier, Correction of Gain Adjustment Range
Schematics
PC Boards Part Numbers
PC Boards Location
Schematic Diagrams and PC Boards Views
Synoptic Diagrams
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Summary of Contents for Nagra IV-S
Page 183
DESCRIPTION DATE 06 - 1 Improvement of tachometric residual noise March 1978 New tape adjustments of the Nagra IV -S with CCIR 06 - 2 June 1980 equalization 06 - 3 Mike / line switch modification September 1981 06 - 4...
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