Equipment information

QSC Audio PL340 Amplifier
Manufacturer
QSC Audio
Model PL340
Date 2008
Category Professional music equipment
Group Amplifier
Description
Information
                                    

These manuals are available for the above equipment:

Manual Type Service Manual QSC-9920-Manual-Page-1-Picture
Pages 154
Size 16.05 Mbytes (16834017 Bytes)
Language english
Revision A
Manual-ID/Number TD-000274-00
Date 01 January 2008
Quality Electronic document, no scan, very well readable.
Upload date
MD5 66c729e378327924eb0c6650ad33697e
Downloads 148 since 23 December 2017
Information
Tables and Figures
 ... 
4
Specifications
 ... 
6
1. Introduction
 ... 
7
1.1 Restriction of Hazardous Substances Directive (RoHS)
 ... 1.2
Service bulletins and updates
 ... 1.3
The well-equipped service bench
 ... 1.4
Working with surface-mount components
 ... 1.5
PL380 Service Fixture
 ... 
10
2. Technical Descriptions and Testing
 ... 
14
2.1 PL380 Circuit Description
 ... 
14
2.2 PL380 Major Circuit Blocks
 ... 
16
2.3 PL380 Test Procedure
 ... 
21
2.4 PL340 Test and Calibration Procedure
 ... 
24
2.5 PL325 Test and Calibration Procedure
 ... 
27
3. Troubleshooting
 ... 
31
3.1 PL380: Symptoms, causes, and remedies
 ... 
31
3.2 PL325 and PL340: Symptoms, causes, and remedies
 ... 
39
PLC Power Supply Restoration Kit
 ... 
43
4. Printed Circuit Boards
 ... 
53
4.1 PL325 and PL340 Amplifier
 ... 
53
Main module circuit board assembly
 ... 
53
Input module circuit board assembly
 ... 
56
4.2 PL380 Amplifier
 ... 
58
Main module circuit board assembly
 ... 
58
5. Schematic Diagrams
 ... 
64
5.1 PL325 Schematics
 ... 
64
5.2 PL340 Schematics
 ... 
72
5.3 PL380 Schematics
 ... 
80
6. Replacement parts
 ... 
89
6.1 Semiconductor package descriptions and pinouts
 ... 
89
6.2 PL325 parts and assemblies
 ... 
93
PL325 Power Amplifier (120V) (QSC part # FG-032500-00)
 ... 
93
PL325 Power Amplifier (100V) (QSC part # FG-032500-01)
 ... 
93
PL325 Power Amplifier (230V) (QSC part # FG-032500-02)
 ... 
93
Chassis Assembly PL325 (120V) (QSC part # WP-032500-00)
 ... 
93
Chassis Assembly PL325 (100V) (QSC part # WP-032500-01)
 ... 
94
Chassis Assembly PL325 (230V) (QSC part # WP-032500-02)
 ... 
95
PCB Assembly PL325 (120V) (QSC part # WP-032501-00)
 ... 
95
PCB Assembly PL325 (100V) (QSC part # WP-032501-01)
 ... 
98
PCB Assembly PL325 (230V) (QSC part # WP-032501-02)
 ... 
101
Input Assembly PL325 (QSC part # WP-032502-00)
 ... 
105
6.3 PL340 parts and assemblies
 ... 
106
PL340 Power Amplifier (120V) (QSC part # FG-034000-00)
 ... 
106
PL340 Power Amplifier (100V) (QSC part # FG-034000-01)
 ... 
106
PL340 Power Amplifier (230V) (QSC part # FG-034000-02)
 ... 
106
Chassis Assembly PL340 (120V) (QSC part # WP-034000-00)
 ... 
106
Chassis Assembly PL340 (100V) (QSC part # WP-034000-01)
 ... 
107
Chassis Assembly PL340 (230V) (QSC part # WP-034000-02)
 ... 
108
PCB Assembly PL340 (120V) (QSC part # WP-034001-00)
 ... 
108
PCB Assembly PL340 (100V) (QSC part # WP-034001-01)
 ... 
112
PCB Assembly PL340 (230V) (QSC part # WP-034001-02)
 ... 
115
Input Assembly PL340 (QSC part # WP-034002-00)
 ... 
118
6.4 PL380 parts and assemblies
 ... 
120
PL380 Power Amplifier (120V) (QSC part # FG-038000-00)
 ... 
120
PL380 Power Amplifier (100V) (QSC part # FG-038000-01)
 ... 
120
PL380 Power Amplifier (230V) (QSC part # FG-038000-02)
 ... 
120
Chassis Assembly PL380 (120V) (QSC part # WP-038000-00)
 ... 
120
Chassis Assembly PL380 (100V) (QSC part # WP-038000-01)
 ... 
121
Chassis Assembly PL380 (230V) (QSC part # WP-038000-02)
 ... 
122
PCB Assembly PL380 (120V) (QSC part # WP-038001-00) through
January 2008
 ... 
122
PCB Assembly PL380 (100V) (QSC part # WP-038001-01) through
January 2008
 ... 
126
PCB Assembly PL380 (230V) (QSC part # WP-038001-02) through
January 2008
 ... 
130
PCB Assembly PL380 (120V) (QSC part # WP-038001-00) from
February 2008–
 ... 
134
PCB Assembly PL380 (100V) (QSC part # WP-038001-01) from
February 2008–
 ... 
138
PCB Assembly PL380 (230V) (QSC part # WP-038001-02) from
February 2008–
 ... 
142
QSC-9920-Manual-Page-1-Picture


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