Denon PMA-425R Service Manual

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PMA-425R
INTEGRATED STEREO AMPLIFIER
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Denon PMA-425R Specifications

General

Brand	Denon
Model	PMA-425R
Category	Amplifier
Language	English

Summary

Safety Instructions

General Safety Precautions

Adherence to warnings, proper usage, and servicing procedures.

Environmental and Installation Safety

Guidelines for safe placement and operation regarding water, moisture, and ventilation.

Electrical Safety Measures

Instructions to prevent electric shock and fire hazards from electrical components.

Operating Instructions

Panel Control Functions

Detailed explanation of each control on the front panel and their functions.

Remote Control Operation

Instructions for using the included remote control unit for amplifier functions.

Connections

Front Panel and Rear Panel Layout

Diagrams illustrating the front panel controls and rear panel terminals.

Speaker Connection Guide

Step-by-step instructions and diagrams for connecting speaker systems.

Block and Level Diagram

Method of Adjustments

Idling Current Adjustment

Procedure for setting the idling current for optimal performance.

Wiring Diagram

Schematic Diagram

Schematic of Volume Unit

Schematic of µ-COM Unit

Schematic of Main Unit