Table Of Contents - Universal Audio 562 Manual

TABLE OF
CONTENTS
PAGE
SECTION
I.
INTRODUCTION
1.1
DESCRIPTION
1
1.2
SPECIFICATIONS
2
1.3
CONTROLS AND INDICATORS
3
1.4
CONNECTIONS
4
SECTION
II.
INSPECTION AND INSTALLATION
2.1
UNPACKING AND INSPECTION
5
2.2
ENVIRONMENTAL CONSIDERATIONS
5
2.3
POWERING
5
2.4
LINE VOLTAGE
SV5ITCK
6
2.5
EXTERNAL CONNECTIONS
6
2.6
IMPEDANCE AND TERMINATION
8
2.7
SIGNAL LEVEL AND HEADROOM INDICATOR
9
2.8
ACCESSORIES
9
SECTION
III.
OPERATING INSTRUCTIONS
3.1
SETUP PROCEDURE 10
3.2
DISCUSSION
OF
FEEDBACK
11
3.2.1
GENERAL
11
3.2.2
SUSCEPTIBILITY TO FEEDBACK
12
3.2.3
HOV;
MUCH ADJUSTMENT 12
3.2.4
INTELLIGIBILITY AND FREQUENCY MASKING
13
3.2.5
USE
OF
ENDCUT FILTERS
13
3.3
CAIN STRUCTURE AND SIGNAL-TO-NOISE 14
SECTION
IV.
THEORY
OF
OPERATION
4.1
GENERAL 15
4.2
INPUT
AMPLIFIER
15
4.3
GAIN AMPLIFIER 15
4.4
FEEDBACK SUPPRESSOR
15
4.5
ENDCUT FILTERS 15
4.6
INVERTER 16
4.7
OUTPUT AMPLIFIER
16
4.8
HEADROOM INDICATOR
16
4.9
POWER SUPPLY 16
SECTION
V.
MAINTENANCE
5.1
GENERAL 17
5.2
REPAIRS AND WARRANTY 17
5.3
SERVICE ADJUSTMENTS
17
5.3.1
COMMON MODE BALANCE 17
5.3.2
OFFSET ADJUSTMENT
18
5.4
CLEANING 18
5.5 ON OP
AMPS 19
SECTION
VI.
SCHEMATIC AND TYPICAL ATTENUATION CURVES