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Media Converter
ADO
Service manual
Ampex ADO Service Manual
Concentrator
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Service manual
(124 pages)
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Purpose of the Equipment
Capabilities
Functional Description
Scope of the Manual
Physical Description
Standard and Optional Equipment
Specifications
Concentrator Interconnection Diagram
Concentrator Rear Door
Installation
Installation Site
Rack-Mounting Instructions
Concentrator Chassis Dimensions
Unpacking
Power and Signal Connections
Concentrator Chassis
Theory of Operation
General
Introduction
Cutting
Concentrator Block Diagram
Synchronizing Video Channels
1/0 Pwa
Adding
Synchronization of Digital Video Inputs
Read Addresses
Write Addresses
Complete Synchronization of Digital Video
ADO Formatting
Compensating Delay for Key Processing
Concentrator Formatting
Input Register
Yck Ram
Video Loopthrough Function
9Thbit Ram
Concentrator Formatting Logic
YCK RAM Output Register
YCK Sync Register
YYC Delay Logic
Concentrator Formatting Logic Waveforms
1/0 PWA (Continued)
Write Address Counter
YCK Address Generator
9THBIT Address Generator
Arbitrator
Generation of the DAT ACLK Signal
DAT ACLK Generation Idealized Waveforms, Example One
Generation of the WRITE Signal
WRITE and READCLK Generation, Typical Idealized Waveforms
Generation of the READCLK Signal
Loopthrough Delay Logic
ADO Formatting Logic
Key Select Register
Board Clocks and Control Generator
H Phase Lock Loop
TTL to ECL Drivers
9THBIT Decode Logic
Board Clocks and Control Waveforms
Generation of the TTL INPUT PRESET Signal
Storage of Control Data
Key Data Processing
Background and Composite Key Data
Background Video Data
Channel Key Processor
Keyer Unit Block Diagram
Delay Memory
Priority Processor
Key-Taken Adder
Key-Taken Multiplexer
Channel Key Processor Block Diagram
Computer Interface Logic
Cutter PWA
Luminance Key Assignments
Cutter Section
Variable-Key Delay
Key Switch
Chrominance Key Assignments
Key Tally Detector
Tapped Key Delay
Chrominance Key Processor
Key Multiplexer
Luminance Key Processor
Cutter Multiplier
Clock PW a Block Diagram
Combiner Computer PW a Block Diagram
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Catalog No. 1809633-01
,Issued: September 1984
ADD
CONCENTRATOR
SERVICE MANUAL
AMPEX
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