QSC PowerLight3 Series - User Manual

Technical Service Manual
PowerLight3
Series
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▲▲
▲ PL325
▲▲
▲▲
▲ PL340
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▲▲
▲ PL380
*TD-000274-00*
*TD-000274-00*
Rev. A
QSC Audio Products, LLC
Costa Mesa, CA 92626 USA
www.qscaudio.com

Summary

PowerLight 3 Series Introduction

Well-Equipped Service Bench Requirements

List of essential tools and equipment for servicing PowerLight 3 amplifiers.

PL380 Service Fixture Usage

PowerLight 3 Series Specifications

PowerLight 3 Series Technical Descriptions and Testing

PL380 Circuit Description

PL380 Major Circuit Blocks

PL380 Test Procedure

Step-by-step guide for testing the PL380 amplifier's performance.

PL340 Test and Calibration Procedure

Step-by-step guide for testing and calibrating the PL340 amplifier.

PL325 Test and Calibration Procedure

Step-by-step guide for testing and calibrating the PL325 amplifier.

PowerLight 3 Series Troubleshooting Guide

PL380: Symptoms, Causes, and Remedies

Guide to diagnosing and resolving PL380 amplifier issues.

PL325 and PL340: Symptoms, Causes, and Remedies

Guide to diagnosing and resolving PL325 and PL340 amplifier issues.

PowerLight 3 Series Schematic Diagrams

PL325 Schematics

PL340 Schematics

PL380 Schematics

PowerLight 3 Series Replacement Parts

PL325 Parts and Assemblies

PL340 Parts and Assemblies

PL380 Parts and Assemblies

QSC PowerLight3 Series Specifications

General

Series	PowerLight 3
Channels	2
Damping Factor	>500
Cooling	Variable speed fan, front to rear airflow
Protection	Short circuit, thermal, RF protection
Connectors	Neutrik Speakon outputs, XLR inputs
Frequency Response	20 Hz - 20 kHz, +0/-0.25 dB
Dimensions (H x W x D)	3.5" x 19" x 15.75" (89mm x 483mm x 400mm)