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Onkyo TX-8255 User Manual

Onkyo TX-8255
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Stereo Receiver
TX-8255
Instruction Manual
Thank you for purchasing an Onkyo Stereo Receiver.
Please read this manual thoroughly before making
connections and plugging
in
the unit.
Following the instructions
in
this manual will enable
you to obtain optimum performance and listening
enjoyment from your new Stereo Receiver.
Please retain this manual for future reference.
Contents
Introduction 2
Others
Troubleshooting
31
Specifications 33

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Onkyo TX-8255 Specifications

General IconGeneral
Package depth560 mm
Package width419 mm
Package height250 mm
Dimensions (WxDxH)435 x 149 x 340 mm
Power requirementsAC 220-230 V, 50/60 Hz
Impedance4 Ω
Dynamic range (1kHz)90 dB
Total Harmonic Distortion (THD)0.08 %
AM band range522 - 1611 kHz
FM band range87.5 - 108 MHz
Radio Data System (RDS)Yes
Product colorBlack
Power consumption (standby)0.3 W
Power consumption (typical)180 W
Weight and Dimensions IconWeight and Dimensions
Weight7500 g

Summary

Important Safety Instructions

Precautions

Power

Critical information regarding power connection, voltage selection, and cord safety before initial use.

For U.S. models

FCC compliance information and user cautions specific to models sold in the United States.

For Canadian Models

Compliance information and specific cautions for models sold in Canada, including polarized plug safety.

Supplied Accessories

Features

Getting to Know the Receiver

Front Panel

Identification and description of controls and indicators on the receiver's front panel for various models.

Rear Panel

Details the various input/output jacks and connectors on the rear of the receiver for system integration.

Display

Explains the indicators and message area of the receiver's display for status and information.

Remote Controller

Identifies and describes the functions of each button on the remote controller for operating the receiver.

Using the Remote Controller

Provides instructions on how to operate the receiver remotely, including sensor placement and range.

Connecting Your Speakers

Speaker Connection Precautions

Guidelines for connecting speakers, including impedance requirements and polarity to prevent damage.

Connecting the Speaker Cables

Step-by-step instructions for properly stripping and connecting speaker cables to the receiver terminals.

Connecting Antenna

Connecting the Indoor FM Antenna

Instructions for attaching the supplied indoor FM antenna for optimal reception.

Connecting the AM Loop Antenna

Instructions for assembling and connecting the AM loop antenna for radio reception.

Connecting an Outdoor FM Antenna

Guidance on connecting a commercially available outdoor FM antenna for improved reception.

Connecting an Outdoor AM Antenna

Guidance on connecting a commercially available outdoor AM antenna for improved reception.

Using a TV/FM Antenna Splitter

Advice on using a splitter if the same antenna is needed for both FM and TV reception.

Connecting Your Components

Before Making any Connections

General advice and precautions before connecting audio/video components to the receiver.

Connection Color Coding

Explains the standard color coding for audio cables (red for right, white for left).

Connecting a Turntable

How to connect a turntable, including ground wire and MC cartridge considerations.

Connecting a CD Player

Instructions for connecting a CD player using analog audio cables to the receiver's CD input.

Connecting a Recording Component

How to connect cassette decks, MD recorders, or CD recorders for recording and monitoring.

Connecting a DVD Player

Instructions for connecting a DVD player's audio output to the receiver.

Connecting a Remote Interactive Dock (RI Dock)

How to connect an RI Dock for integrated control and playback of iPods.

Connecting a TV or Other Component with an Audio Output

How to connect components like TVs or VCRs using analog audio outputs.

Connecting RI Components

How to connect other Onkyo RI-compatible components for system control and auto functions.

Connecting the Power Cords of Other Components

How to use the receiver's switched AC outlets to power other components.

Connecting the Power Cord

Instructions for connecting the receiver's own power cord to a wall outlet.

Turning On the Receiver

Turning On and Standby

How to turn the receiver on from standby and put it back into standby mode.

Changing the Input Display

Procedure to rename input sources, like changing TAPE 1 to "HDD" for RI Dock use.

Enjoying Audio Sources

Muting the receiver (remote controller only)

How to temporarily mute the audio output using the remote controller's MUTING button.

Using Headphones

Instructions for connecting headphones to the front panel PHONES jack for private listening.

Setting the Display Brightness

How to adjust the receiver's display brightness using the DIMMER button.

Using the Sleep Timer (remote controller only)

How to set the receiver to automatically turn off after a specified period.

Using the Tone and Balance Controls

How to adjust bass, treble, and speaker balance for desired sound output.

Recording

Recording the Input Source

Steps to record audio signals from selected sources to a component with recording capability.

Monitoring the Recorded Sound

How to monitor audio while recording using the TAPE 2 MONITOR function.

Listening to the Radio

AM Frequency Step Setup (not North America and Europe)

How to set the AM tuning frequency step (10 kHz or 9 kHz) according to region.

Listening to AM/FM Stations

Basic steps to select AM or FM bands and tune into stations.

Selecting Presets

How to select stored radio stations using preset numbers.

Presetting AM/FM Stations

Steps to store favorite radio stations as presets for quick access.

Deleting Presets

How to remove stored radio presets from memory.

Using RDS (European Models Only)

Explains how to use Radio Data System features like PS, RT, PTY, and TP on European models.

Displaying Radio Text (RT)

How to view text information broadcast by RDS-enabled radio stations.

Finding Stations by Type (PTY)

How to search for radio stations based on program type (e.g., news, rock).

Listening to Traffic News (TP)

How to find stations broadcasting traffic information and how to search for TP stations.

Naming Preset Channels (other than European model)

How to assign custom names (up to 8 characters) to preset radio stations.

Connecting Components not Reached by the Remote Controller Signals (IR IN/OUT)

If Remote Controller Signal Does not Reach the Receiver Remote Sensor

How to use an external IR receiver to control the unit when it's out of the remote's line of sight.

If Remote Controller Signal Does not Reach Other Components

How to use an IR emitter to control other components remotely when they are not directly visible.

Troubleshooting

Power

Solutions for issues like the receiver not turning on or the standby indicator flashing.

Audio

Troubleshooting steps for no sound, quiet sound, or noise issues.

Tuner

Solutions for noisy reception, poor stereo FM, or missing FM STEREO indicator.

Remote Controller

Steps to resolve issues where the remote controller is not working or cannot control other components.

Recording

Troubleshooting tips for problems related to recording audio signals.

Others

Solutions for RI function issues, receiver lock-ups, and memory backup behavior.

Specifications

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