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ISA 280
QSC ISA 280 Manuals
Manuals and User Guides for QSC ISA 280. We have
7
QSC ISA 280 manuals available for free PDF download: Technical & Service Manual, User Manual, Specifications
QSC ISA 280 Technical & Service Manual (142 pages)
ISA Series
Brand:
QSC
| Category:
Amplifier
| Size: 13.47 MB
Table of Contents
ISA Series Power Amplifiers
3
Technical Service Manual
3
Table of Contents
5
ISA Series Power Amplifiers
5
Technical Service Manual
5
ISA Series Performance Specifications
7
NOISE (Unweighted 20 Hz to 20 Khz, below Rated Output
7
Smpte-IM
7
Voltage Gain
7
Frequency Response
7
Dynamic Headroom
7
Distortion
7
Damping Factor
7
Bridge Mono
7
At 10 Db below Rated Output Power
7
1 Introduction
9
Restriction of Hazardous Substances Directive (Rohs)
9
Service Bulletins
9
The Well-Equipped Service Bench
9
Distortion
9
Technical Service Manual
9
ISA Series Power Amplifiers
9
Working with Surface-Mount Components
10
Two-Terminal Components (Resistors, Capacitors, Diodes, Etc.)
10
Three-Terminal Components (Transistors, Etc.)
10
Multi-Pin Components (Ics, Etc.)
11
Technical Service Manual
11
ISA Series Power Amplifiers
11
Series Description
12
Outputs for Distributed Lines
12
Technical Descriptions and Theory of Operation
12
Power Supplies
12
Audio Circuitry
12
Clip Detection
13
DC Protection
13
Distortion
13
Technical Service Manual
13
ISA Series Power Amplifiers
13
Class H
14
Bridged Mono Operation and Protection
14
Output Transformers and Autoformers
14
Bridge Mono
14
ISA1350 Circuitry
15
Class H Step Drivers
15
Bias Circuitry
15
Muting Via the Bias Network
15
Technical Service Manual
15
ISA Series Power Amplifiers
15
DC Fault Protection
16
Revisions Made During Production
16
ISA750 and ISA800T
16
2 Component Identification and Pinout
17
NE5532AN Dual Operational Amplifier
17
LM311 Voltage Comparator
17
4N29 Opto-Isolator
17
LM13600 Dual Operational Transconductance Amplifier
17
2N5064 Sensitive Gate Thyristor
17
Technical Service Manual
17
ISA Series Power Amplifiers
17
IRFZ44 TMOS Power Field Effect Transistor
18
2N3904 (NPN) and 2N3906 (PNP) Small-Signal Transistors
18
MJE15032 (NPN) and MJE15033 (PNP) Driver Transistors
18
MAC224 Triac
18
2SC5200 (PNP) and 2SA1943 (NPN) Power Transistors
18
3 Troubleshooting: Symptoms, Causes, & Remedies
19
Excessive Current Draw
19
Symptoms Covered
19
Possible Situations
19
Protection, Muting, and Turn-On/Turn-Off Delay Problems
19
Technical Service Manual
19
ISA Series Power Amplifiers
19
Faults with Signal Present
20
Symptoms Covered
20
Possible Situations
20
Instability
21
Symptoms Covered
21
Possible Situations
21
Power Supply & Rail Balancing Problems
21
Distortion
21
Technical Service Manual
21
ISA Series Power Amplifiers
21
Table 1: Bias and Current Limit Adjustments
22
4 ISA Calibration Procedures
23
Setting Bias
23
Tools and Resources You will Need
23
Procedure
23
Setting Positive and Negative Current Limits
23
Distortion
23
5 Servicing ISA Amplifiers
25
Mechanical Disassembly and Re-Assembly
25
Removing the Channel Modules
25
Removing the AC Board
25
Technical Service Manual
25
ISA Series Power Amplifiers
25
6 Replacement Parts
26
ISA280 Parts and Assemblies
26
ISA280 Power Amplifier
26
Chassis Assembly ISA280 (Beginning June 2006)
26
Chassis Assembly ISA280 (before June 2006)
27
Technical Service Manual
27
ISA Series Power Amplifiers
27
Main PCB Assembly ISA280
28
ISA Series Power Amplifiers
29
Technical Service Manual
29
PCB Assembly, Ac/Input ISA280, 300Ti, 300T, 450, 500Ti, & 500T
30
Technical Service Manual
31
ISA Series Power Amplifiers
31
ISA300T Parts and Assemblies
32
ISA 300T Power Amplifier
32
Chassis Assembly ISA300T
32
Main PCB Assembly ISA300T
33
Technical Service Manual
33
ISA Series Power Amplifiers
33
PCB Assembly, Ac/Input ISA280 300Ti, 300T, 450, 500Ti, & 500T
35
Technical Service Manual
35
ISA Series Power Amplifiers
35
Isa300Ti Parts and Assemblies
36
Isa300Ti Power Amplifier
36
Chassis Assembly Isa300Ti (Beginning June 2006)
36
Chassis Assembly Isa300Ti (before June 2006)
37
Technical Service Manual
37
ISA Series Power Amplifiers
37
Main PCB Assembly Isa300Ti
38
Technical Service Manual
39
ISA Series Power Amplifiers
39
PCB Assembly, Ac/Input ISA280, 300Ti, 300T, 450, 500Ti, & 500T
40
ISA450 Parts and Assemblies
41
ISA450 Power Amplifier
41
Chassis Assembly ISA450 (Beginning June 2006)
41
Technical Service Manual
41
ISA Series Power Amplifiers
41
Chassis Assembly ISA450 (before May 2006)
42
Main PCB Assembly ISA450
43
Technical Service Manual
43
ISA Series Power Amplifiers
43
PCB Assembly, Ac/Input ISA280, 300Ti, 300T, 450, 500Ti, & 500T
45
Technical Service Manual
45
ISA Series Power Amplifiers
45
ISA500T Parts and Assemblies
46
ISA 500T Power Amplifier
46
Chassis Assembly ISA 500T
46
Main PCB Assembly ISA 500T
47
Technical Service Manual
47
ISA Series Power Amplifiers
47
PCB Assembly, Ac/Input ISA280, 300Ti, 300T, 450, 500Ti, & 500T
49
Technical Service Manual
49
ISA Series Power Amplifiers
49
Isa500Ti Parts and Assemblies
50
Isa500Ti Power Amplifier
50
Chassis Assembly Isa500Ti
50
Main PCB Assembly Isa500Ti
51
Technical Service Manual
51
ISA Series Power Amplifiers
51
PCB Assembly, Ac/Input ISA280, 300Ti, 300T, 450, 500Ti, & 500T
53
Technical Service Manual
53
ISA Series Power Amplifiers
53
ISA750 Parts and Assemblies
54
ISA750 Power Amplifier
54
Chassis Assembly ISA750 (Beginning May 2006)
54
Chassis Assembly ISA750 (before May 2006)
55
Technical Service Manual
55
ISA Series Power Amplifiers
55
Main PCB Assembly ISA750
56
Technical Service Manual
57
ISA Series Power Amplifiers
57
PCB Assembly, Ac/Input ISA750, 800Ti, & 800T
58
Technical Service Manual
59
ISA Series Power Amplifiers
59
ISA800T Parts and Assemblies
60
ISA800T Power Amplifier
60
Chassis Assembly ISA800T
60
Main PCB Assembly ISA800T
61
Technical Service Manual
61
ISA Series Power Amplifiers
61
PCB Assembly, Ac/Input ISA750, 800Ti, & 800T
63
Technical Service Manual
63
ISA Series Power Amplifiers
63
Isa800Ti Parts and Assemblies
64
Isa800Ti Power Amplifier
64
Chassis Assembly Isa800Ti
64
Main PCB Assembly Isa800Ti
65
Technical Service Manual
65
ISA Series Power Amplifiers
65
PCB Assembly, Ac/Input ISA750, 800Ti, & 800T
67
Technical Service Manual
67
ISA Series Power Amplifiers
67
ISA1350 Parts and Assemblies
68
ISA1350 Power Amplifier
68
Chassis Assembly ISA1350 (Beginning May 2006)
68
Chassis Assembly ISA1350 (before May 2006)
68
Main PCB Assembly ISA1350
68
Technical Service Manual
69
ISA Series Power Amplifiers
69
Technical Service Manual
71
ISA Series Power Amplifiers
71
7 Schematics and Diagrams
73
ISA Series Chassis Assemblies
73
Technical Service Manual
73
ISA Series Power Amplifiers
73
Technical Service Manual
75
ISA Series Power Amplifiers
75
Technical Service Manual
77
ISA Series Power Amplifiers
77
Technical Service Manual
79
ISA Series Power Amplifiers
79
Technical Service Manual
81
ISA Series Power Amplifiers
81
Technical Service Manual
83
ISA Series Power Amplifiers
83
Technical Service Manual
85
ISA Series Power Amplifiers
85
ISA 800Ti
87
Technical Service Manual
87
ISA Series Power Amplifiers
87
ISA 800Ti
88
Technical Service Manual
89
ISA Series Power Amplifiers
89
Technical Service Manual
91
ISA Series Power Amplifiers
91
Technical Service Manual
93
ISA Series Power Amplifiers
93
Technical Service Manual
95
ISA Series Power Amplifiers
95
ISA280 (1St Generation) Schematics
96
Technical Service Manual
97
ISA Series Power Amplifiers
97
ISA280 (Revised) Schematics
99
Technical Service Manual
99
ISA Series Power Amplifiers
99
Technical Service Manual
101
ISA Series Power Amplifiers
101
ISA300T Schematics
102
Technical Service Manual
103
ISA Series Power Amplifiers
103
Isa300Ti Schematics
105
Technical Service Manual
105
ISA Series Power Amplifiers
105
Technical Service Manual
107
ISA Series Power Amplifiers
107
ISA450 (1St Generation) Schematics
108
Technical Service Manual
109
ISA Series Power Amplifiers
109
ISA450 (Revised) Schematics
111
Technical Service Manual
111
ISA Series Power Amplifiers
111
Technical Service Manual
113
ISA Series Power Amplifiers
113
ISA500T Schematics
114
Bridge Mono
114
Technical Service Manual
115
ISA Series Power Amplifiers
115
Isa500Ti Schematics
117
Technical Service Manual
117
ISA Series Power Amplifiers
117
Technical Service Manual
119
ISA Series Power Amplifiers
119
ISA750 (1St Generation) Schematics
120
Technical Service Manual
121
ISA Series Power Amplifiers
121
ISA750 (Revised) Schematics
123
Technical Service Manual
123
ISA Series Power Amplifiers
123
Technical Service Manual
125
ISA Series Power Amplifiers
125
ISA800T Schematics
126
Bridge Mono
126
Technical Service Manual
127
ISA Series Power Amplifiers
127
Isa800Ti Schematics
129
Technical Service Manual
129
ISA Series Power Amplifiers
129
Technical Service Manual
131
ISA Series Power Amplifiers
131
ISA750, ISA800T, Isa800Ti Component Locations
132
Technical Service Manual
133
ISA Series Power Amplifiers
133
ISA1350 Schematics
134
Technical Service Manual
135
ISA Series Power Amplifiers
135
Technical Service Manual
137
ISA Series Power Amplifiers
137
ISA1350 Component Locations
138
Technical Service Manual
139
ISA Series Power Amplifiers
139
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QSC ISA 280 User Manual (40 pages)
ISA Series Installed Sound Amplifiers
Brand:
QSC
| Category:
Amplifier
| Size: 2.71 MB
Table of Contents
Explanation of Symbols
2
Fcc Interference Statement
2
Important Safety Precautions
2
Table of Contents
3
Introduction
4
ISA Series Overview
4
Front Panel Illustration
4
Rear Panel Illustrations
5
Features & Setup
6
Power Switch
6
Cooling Air Inlet and Exhaust Vents
6
LED Indicators
7
Gain Controls
8
Input Jacks
8
Dataport V2 Connector
9
Daisy Chaining to Other Devices from the Dataport V2
9
Stereo & Parallel Operating Modes
10
DIP Switch Settings
11
Bridge Mono Operating Mode
12
DIP Switch Settings
12
Low Frequency Filter
13
DIP Switch Settings
13
Frequency Response Curves
14
Clip Limiter
15
DIP Switch Settings
15
Installation
16
Rack Mounting
16
Mounting Dimensions
16
Cooling Requirements
17
AC Mains (AC Power)
17
Connections
18
Inputs: XLR and Terminal Block Input Jacks
18
Inputs: Dataport V2 Connections and Notes
19
Outputs: Using the Screw Terminal Connections
20
Outputs: Direct Low Impedance (2-16 Ohm Loads)
21
Outputs: Distributed High Impedance ("T" Models Only)
22
Power Sharing between High and Low Impedance Outputs ("T" Models Only)
24
Securing Output Wiring to the Chassis
25
Operation
26
Gain Controls
26
AC Power Switch
26
Front Panel LED Indicators
26
Normal Operating Levels
26
General Notes, Distributed Line Principles
27
Low Frequency Filtering, Distributed Output Examples
28
Applications
30
Multiple Low Impedance Loads in Series or Parallel Connections
30
Dataport V2 Application Information
32
Troubleshooting
33
Specifications
35
Warranty Information
39
How to Contact Qsc Audio Products
39
QSC ISA 280 User Manual (56 pages)
Installed Sound Professional Audio Amplifiers
Brand:
QSC
| Category:
Amplifier
| Size: 3.79 MB
Table of Contents
Isa 800Ti
1
Rack Mounting
4
Setting the Mode Switches
4
Setting Clip Limiters
4
Selecting Stereo, Parallel, or Bridge Mode
5
Setting Low Frequency Filters
5
Direct Low Impedance Outputs
6
Led Indicators
8
Gain Controls
8
Specifications (All Models)
9
Montaje en Bastidor
15
Indicadores LED
19
Controles de Ganancia
19
Alimentation Secteur
26
Commandes de Gain
30
LED-Anzeigen
41
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QSC ISA 280 User Manual (13 pages)
Installed Sound Professional Audio Amplifiers
Brand:
QSC
| Category:
Amplifier
| Size: 0.91 MB
Table of Contents
Isa 800Ti
1
Rack Mounting
4
Setting the Mode Switches
4
Setting Clip Limiters
4
Selecting Stereo, Parallel, or Bridge Mode
5
Setting Low Frequency Filters
5
Direct Low Impedance Outputs
6
Led Indicators
8
Gain Controls
8
Specifications (All Models)
9
QSC ISA 280 User Manual (12 pages)
Brand:
QSC
| Category:
Amplifier
| Size: 4.36 MB
QSC ISA 280 Specifications (6 pages)
Current Draw—120 VAC
Brand:
QSC
| Category:
Amplifier
| Size: 0.12 MB
QSC ISA 280 Specifications (2 pages)
ISA Series Professional Power Amplifiers
Brand:
QSC
| Category:
Amplifier
| Size: 0.18 MB
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