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Denon DRA-275RD Service Manual

Denon DRA-275RD
36 pages
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D
FE
N
O
N
Hi-Fi
AM-FM
Stereo
Receiver
SERVICE
MANUAL
MODEL
DRA-3
75RD
MODEL
DRA-275RD/275R
AM-FM
STEREO
RECEIVER
DRA-275R
TABLE
OF
CONTENTS
OPERATING
INSTRUCTIONS
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NIPPON
COLUMBIA
CO.
LTD.

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Denon DRA-275RD Specifications

General IconGeneral
BrandDenon
ModelDRA-275RD
CategoryStereo Receiver
LanguageEnglish

Summary

DENON Hi-Fi AM-FM Stereo Receiver

Service Manual Overview

Introduction to the service manual, identifying the product and document type.

Model Identification

Specifies the Denon receiver models covered: DRA-375RD, DRA-275RD/275R.

SAFETY INSTRUCTIONS

General Safety Precautions

Covers essential safety guidelines for operating and servicing the equipment to prevent hazards.

Electrical Shock Warnings

Alerts users about the risks of electric shock and the need for qualified service personnel for repairs.

Notes on Usage and Installation

Installation Precautions

Provides guidelines for proper physical placement and ventilation of the receiver for optimal performance and safety.

Front Panel Controls and Indicators

Part Identification and Function

Details the function of each button, knob, jack, and display element on the receiver's front panel.

Rear Panel Connections

Terminal Identification and Connectivity

Explains the rear panel layout, input/output terminals, and their respective connection procedures.

Setup and Function Usage

Remote Control Operation

Remote Control Usage Guide

Instructions for using the RC-812 remote control unit, including battery installation and general usage.

Troubleshooting Guide

Problem Resolution

A guide to identify and resolve common operational issues encountered with the receiver.

Technical Specifications

Performance Specifications

Detailed technical data covering power output, frequency response, sensitivity, and other performance metrics.

Disassembly Procedures

Adjustment Methods

Idling Current Adjustment

Guide for measuring and adjusting the idling current for optimal audio performance.

Block/Level Diagram

System Signal Flow Diagram

Visual representation of the receiver's internal circuitry and signal flow between major functional blocks.

Semiconductor Details

Integrated Circuit Diagrams

Semiconductor Components

Remote Control and Display Information

Printed Wiring Board Layouts

Main Unit Parts List

Exploded View of Chassis and Cabinet

Chassis and Cabinet Assembly Diagram

An exploded view showing the physical assembly of the receiver's chassis and cabinet components.

Parts List for Exploded View

Wiring Diagram

SCHEMATIC DIAGRAM (1/2)

Circuit Details Part 1

First part of the detailed circuit schematic illustrating component interconnections and signal paths.

SCHEMATIC DIAGRAM (2/2)

Circuit Details Part 2

Second part of the detailed circuit schematic covering the remaining functional blocks of the receiver.

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