Table of Contents
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Table of
Contents
About
This
Manual
21
PART
D:
MAINTENANCE
Registration
Card
Fig.
A-1: Registration
Card
21
Introduction
Warranty
21
ALIGNMENT
AND PERFORMANCE
VERIFICATION
21
General
1
PART
A:
INTRODUCTION
21
Power
Supply
22
Signal
Processing Circuitry
1
Performance
Highlights
25
MAINTENANCE AND
SERVICE
3
25
Preventive
Maintenance
3
Description
25
Corrective
Maintenance
25
Service
Access
5
PART
B:
INSTALLATION
26
Lamp
Replacement
26
Component
Replacement
5
Installation
26
Replacement
Parts
5
Of
Options
27
Replacement Of Components
On
Printed Circuit
5
Fig. B-1:
Wiring
Of
Optional
Connectors
Boards
6
Installation
27
Removal
6
AC
Power
27
Installation
6
Fig. B-2:
AC
Line
Cord
Color Coding
27
Troubleshooting IC
Opamps
6
Loop
Bass
Rolloff
Jumper
28
Factory
Service
7
Fig. B-3:
Control
Loop
Bass
Rolloff Strapping
29
Shipping
Instructions
7
Audio Connections
29
CIRCUIT DESCRIPTION
7
29
General
7
29
Input
Buffer
8
Preferred Wiring
30
Voltage-Controlled Amplifier
(VCA)
Operation
8
Fig. B-4:
Grounding
30
Current-Controlled Gain
8
1:
General Input/Output Connection Rules
31
Exponential Converter
9
The 414A With
Single-Conductor Shielded
31
Compressor/Limiter
Circuitry
Cable
31
General
31
Rectifier
With Threshold
11
PART
C:
OPERATING
INSTRUCTIONS
33
Timing Module
11
33
Threshold-Setting Circuitry and
RATIO
Control
12
Fig.
C-1:
Output Level
As
A
Function
Of
Input
33
Gain Reduction Meter
Level For Various
Settings
Of The
RATIO
Control
34
Line Amplifier
15
Description and Function
of
Front-Panel Features
34
Power
Supply
17
The Compressor/Limiter
17
Some
Specific Applications
35
APPENDIX
A:
INTERCONNECTIDNS
AND
17
Sidechain Processing
GRDUNDING
17
De-Essing
35
Driving
The
Input
From
High-Impedance
And/Or
18
Frequency-Selective Limiting
High-Level Sources
18
And
Multichannel Operation
35
Grounding
18
Speech-Activated Ducking
Of
Music
37
APPENDIX
B:
SPECIFICATIDNS
39
PARTS
LIST
44
Vendor Codes
45
ASSEMBLY
DRAWING
46
SCHEMATIC
DIAGRAM
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