Denon PMA-725R Service Manual

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NIPPON
COLUMBIA
CO.
LTD.

Denon PMA-725R Specifications

General

Speaker load impedance	4 - 16 ohms
Power Output	50W per channel (8 ohms, 20Hz-20kHz, THD 0.07%)
Total Harmonic Distortion (THD)	0.07% (rated output)
Input Sensitivity	150mV (line)
Dimensions	434 x 120 x 285mm
Frequency Response	5Hz-100kHz (+0, -3dB)

Summary

SAFETY AND GENERAL INFORMATION

Safety Instructions

Essential safety warnings and precautions for operating the amplifier safely.

Notes on Use and Installation

Guidelines for proper usage, handling, and placement of the unit.

UNIT CONTROLS AND OPERATION

Panel Controls and Functions

Detailed description of all front and rear panel controls and their functions.

Remote Control Operation

Instructions for operating the amplifier using the remote control unit.

TECHNICAL SPECIFICATIONS AND MAINTENANCE

Technical Data

Specifications of the amplifier's performance and electrical characteristics.

Unit Disassembly and Circuit Function

Procedures for removing sections and explanation of new circuit functionality.

Adjustments and Diagrams

Procedures for adjustments and block/level diagram overview.

PARTS IDENTIFICATION AND SCHEMATICS

Semiconductor Identification

Identification of ICs, transistors, and diodes used in the unit.

Component Parts Lists

Detailed lists of all components for PWB and exploded views.

Exploded Views and Wiring

Visual breakdown of assembly and internal wiring connections.

Schematic Diagrams

Detailed electrical schematics of the amplifier's circuits.