Orban 674A - Table of Contents

Table
of
Contents
Specifications
Registration
Card
Warranty
I
Part
A:
Installation
and
Operation
I
Introduction
1 Performance
Highlights
2
Front
Panel
Description
3
Rear
Panel
Description
3 Block
Diagram
3
AC
Power
4
Mechanical
Installation
XLR
Connector
Installation
5
Balanced
Output
Tranformer
Installation
6
Electrical
Installation
Input
Output
Wiring
With
Two-Conductor
Shielded
Cable
Grounding
Diagram
7
Typical
Input/Output
Connection
Rules
7
Wiring
With
Single-Conductor
Shielded
Cable
8
OPERATING
INSTRUCTIONS
Using
the
EQ
Section
Boost/Cut
Curve
Familes
Using
the
Highpass
and
Lowpass
Filters
Using
the
674A
As
An
Electronic
Crossover
Headroom
I I
Part
B:
Specific
Applications
| |
Stereo
I
I
Sound
Reinforcement
House
Tuning
Notch
Filtering
Full
Electronic
Crossover
Partial
Electronic
Crossover
and
Individual
Driver
Equalizer
Stage
Monitors
1 3
Dance
Bars
14
Recording
Studios
15
Motion
Picture
Sound
15
Broadcasting
16
Electronic
Music
17
Part
C:
Maintenance
17
Introduction
17 Performance
Evaluation
General
Power
Supply
Signal
Processing
Circuitry
23
Maintenance
and
Service
Preventive
Maintenance
Access
Replacement
of
Components
on
Printed
Circuit
Boards
Troubleshooting
1C
Opamps
Factory
Service
Shipping
Instructions
26
Circuit
Description
General
Input
Buffer
Equalizer
Sections
EQ
IN/OUT
Switch
Lowpass
Filter
Highpass
Filter;
Output
Buffer
Overload
Indicator
Power
Supply
3 1
Appendix:
Interconnections
And Grounding
31
Driving
the
Input
From
High-Impedance
And/Or
High-
Level
Sources
31 Grounding
NOTE
Text
references to
(+)
and
(-) input and output terminals mean the
same as
schematic and rear-panel
designations
"HI"
and "LO",
respectively.