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Onkyo T-407 User Manual

Onkyo T-407
8 pages
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T-4OT
Quarlz
Synthesized
FM
Stereo/AM
Tuner
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Onkyo T-407 Specifications

General IconGeneral
Tuning BandsFM, MW
Total Harmonic Distortion (MW)0.3%
FM Tuning Range87.5 to 108 MHz
Signal to Noise Ratio (MW)40dB
Frequency Response (FM)30 Hz - 15 kHz

Summary

Features of the ONKYO T-407 Tuner

Isohex Power Supply Design

Explains ONKYO's exclusive Isohex Power Supply arrangement for improved power supply control and reduced interference.

Sensitivity and Tuning Precision

Highlights the RF section's varactor diodes, MOS FETs, and dual local oscillator buffer for sharp reception.

40-Station Random Preset Tuning

Details the capability of storing up to 40 FM/AM stations for quick access.

Classified Memory Preset System

Describes organizing memory presets into eight classes (A-H) for different program types or users.

Direct Access Tuning Functionality

Explains how to directly input broadcast frequencies using numeric keys.

Automatic Precision Reception (APR)

Mentions the APR system that automatically controls reception modes for optimum performance.

Station Naming Feature

Details the ability to name stations using up to 5 characters for 40 stations.

Front End Intermodulation Distortion

Notes the front end design optimized to minimize intermodulation distortion.

25 kHz FM Tuning Steps

Specifies the tuning increment for FM reception.

10-Segment Signal Strength Indicator

Describes the indicator that shows signal strength.

RI Remote Control Compatibility

Indicates compatibility with ONKYO's RI remote control system.

Important Safeguards for Operation

Comprehensive Safety and Operating Guidelines

Covers reading instructions, retaining manuals, heeding warnings, and following operational procedures.

Precautions for Use and Care

Warranty Card Information

Instructions for recording the serial and model number on the warranty card.

Unit Care and Cleaning Methods

Guidance on cleaning the unit's panels and cabinet using soft cloths and mild detergent.

Supplied Accessories List

RI Remote Control Cable

Cable for connecting to ONKYO amplifiers for remote control operation.

Output Signal Cord

Cord used for connecting the tuner's output to an amplifier.

AM Loop Antenna

Antenna included for receiving AM broadcasts.

T-shaped FM Antenna

Antenna provided for receiving FM broadcasts.

Antenna Adapter

Adapter for connecting different types of FM antennas.

System Connections Guide

FM Antenna Connection Options

Details connecting indoor T-shaped, outdoor FM, and multi-element antennas for reception.

75/300 Ohm Antenna Adapter

Instructions on how to connect the provided antenna adapter to coaxial cables.

T-shaped FM/300 Ohm Antenna Setup

Guidance for connecting the T-shaped FM antenna or a 300 Ohm outdoor FM antenna.

AM Loop Antenna Assembly and Connection

Steps for assembling and connecting the AM loop antenna for optimal placement.

Connecting Tuner Output to Amplifier

Emphasizes correct connection of the tuner's R and L audio channels to the amplifier.

Front Panel Facilities Overview

Front Panel Controls and Indicators

Details power switch, tuning selectors, band selectors, memory buttons, display, and various indicators.

Memory Preservation Functionality

Memory Back-up System

Explains the built-in system that preserves memory during power failures and unplugging.

Tuner Operations and Tuning Methods

Tuning FM and AM Stations

Guide to using tuning buttons for scanning and auto-tuning stations.

Tuning Level Adjustment (FM)

Explains how to set the auto-tuning level for weak or strong FM broadcasts.

Signal Strength Indicator Interpretation

Describes how to use the signal strength indicator for optimum tuning.

RF Mode Selection (DX/LOCAL)

Details selecting DX for distant signals and LOCAL for nearby signals.

FM Stereo Indicator Function

Explains the indicator that lights up for FM stereo reception.

Tuning Cable FM Broadcasts

Instructions for precise tuning of cable FM broadcasts using specific steps.

Direct Tuning by Frequency Input

Procedure for directly tuning to a station by entering its frequency number.

Station Classification and Naming

Canceling Memorized Stations

Procedure for deleting a memorized station to free up a memory number.

Retrieving Memorized Stations

Methods to recall stations using classified memory buttons, numeric input, or scan.

Naming Preset Stations (Character Function)

Guide to assigning up to 5 characters to preset stations for identification.

APR System Operation

Explains how the APR system automatically optimizes FM reception modes.

Troubleshooting Common Issues

Troubleshooting Guide

Lists common problems like no power, noise, and reception issues with causes and remedies.

Technical Specifications

FM Tuning Specifications

Details tuning range, sensitivity, rejection ratios, and distortion for FM reception.

AM Tuning Specifications

Provides tuning range, sensitivity, and rejection ratios for AM reception.

General Specifications

Includes power supply, dimensions, weight, and supplied accessories details.

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