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Ampex Manuals
Recording Equipment
VPR-3
Service manual
Ampex VPR-3 Service Manual
Video production recorder
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Also See for VPR-3
:
Training manual
(269 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Training Services
Table of Contents
List of Illustrations
Vpr-3
Maintenance
Major Assemblies
Transport Assembly
Standard Equipment
Specifications
System Operation
Scanner
Specifications
Vertical Interval Dropout
VPR-3 Overall System Block Diagram
Video Signal System Block Diagram
Headphones » and Speakers
Audio System Block Diagram
Vpr-3
Control System
Reference System
Servo System
Scanner Servo System Block Diagram Co Ew Ww
Capstan Servo System Block Diagram
AST Servo System Block Diagram
DC Error Detection
Monitoring System
Video Signal System Detailed Block Diagram
Video Record
Rec Level
Cosine Equalizer Response Characteristics
Modulator PWA Test Point, Jumper, and Component Locations
Input Differential Amplifier Balance Adjustment
Input Differential Amplifier Frequency Response Adjustment
Modulator Linearity Adjustment
Modulator Deviation Adjustment
Color Frame Detector PWA
Control PWA (1467200) Block Diagram
Control PWA (1467203) Block Diagram
Main CPU Simplified Memory Map (Control PWA--Version 3 Software)
Record Lockout
Group Select
Control Knob Stops and Detents
Maintenance Access
Control Panel Latches
Ose
Control Panel Bracket Lowered
Control Panel Suspended Vertically in Lowered Bracket
Rear Cover of Control Panel Assembly Facing Forward
Control Switch Lamp Replacement
Mounting Input/Output PWA to Control Panel Assembly
Mounting Control Switches PWA on Control Panel Assembly
Mounting Controls PWA to LED PWA
Mounting LED PWA to Front Panel
Mounting 26 X 256 Display Logic PWA to Display Driver PWA
Troubleshooting
Mounting Display Driver PWA to Front Panel
Test Points
Reference Generator PWA (1467160 and 1467163)
Servo System
Seanner Servo
Voltage Controlled Oscillator
Seanner Servo System Detailed Block Diagram
Seanner Servo Error Generation Simplified Schematic Diagram
Capstan Servo System Simplified Block Diagram
Capstan Servo System Detailed Block Diagram
Reel Servo System Block Diagram
Video Tracks on Tape with and Without AST
AST Head-Exploded View
Servo System Jumpers
Servo System Test Points
Transport Assembly with Protective Trim Removed
Reel Motor and Turntable Assembly
Video Erase Head Assembly
Seanner Assembly
Seanner Upper Drum with Cover Removed
Tape Direction Switeh
System Cleaning
Maintenance
Transport System Tape Tension Measurements
Reel Motor Replacement
Reel Motor Assembly (with Turntable) Components
Setting Turntable Assembly Height
Tension Arm Removal
Video Erase Head Assembly Removal
Video Erase Head Assembly-Head Stack
Tape-In-Path Sensor
Inertia Roller and Air Guide in Video Erase Head Assembly
Edit Erase PWA Schematic
Edit Erase PWA
Scanner Video Heads and Head Securing Devices
Head Connector Color Coding
Accessing Seanner Slip-Ring Assembly
Seanner Slip-Ring Brush Replacement
Slip-Ring Wiring Connections to Preamplifier PWA
Brush Housing Assembly
Scanner Motor Tach Pickup Assembly Removal
Scanner Motor Tach Pickup Assembly Shim Replacement
Seanner Once-Around Tach Pickup Assembly Removal
Brake Assembly
Serape Flutter Idler Assembly Replacement
Shield Gate Assembly-Side and Top Views
Longitudinal Head Assembly Removal
Capstan Assembly - Rear View
Capstan Assembly Removal from Transport Top Plate
Interchange Procedure Operations
Ideal Interchange RF Envelope
Effects of Helical Alignment Adjustment on RF Envelope
Reference Video Signal Coincidence with Demodulator Video Signal
Scanner Once-Around Tach Position Adjustment
Dropout Duration and Position Vs Head Tip Projection
Dropout Duration and Position Vs. Head Tip Projection (625-Line Systems)
Tip Projection Gauge
Installation
Pin-To-Scanner Gap Measurement and Adjustment
Waveform Monitor
Measuring Scanner Exit Guide Spring Pressure
Dropout Position
Dropout Position Adjustment
Reference Video Signal Coincidence with Demodulator Video Signal
Control Track Position Adjustment
VPR-3 Audio System Components
Audio System Block Diagram
Audio PWA Simplified Block Diagram
Audio PWA Detailed Block Diagram
Audio Control PWA 12 Simplified Block Diagram
U50 Commands
U62 Commands
U84 Commands
U81 Commands
Bits D8, D?7-Audio
J Bus Address and Selected Record Setup Function
Commands
Audio PWA
U60 Commands
U71 Commands-Address 87H READ
Jumpers and Test Points
Audio PWA
Audio Control PWA Test Points
Audio Control PWA
Erase Head
Audio Control PWA Component Location Diagram
Audio PWA Component Location Diagram
Step 4 Set Audio
Record/Play Head Azimuth Adjustment
Audio
Line Voltage Selector Plug P13/14/15/16/17 Placement
System Description
Theory of Operation
Maintenance
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