Precautions

1.Recording Copyright—Unless it’s for personal use only, recording copyrighted material is illegal with- out the permission of the copyright holder.

2.AC Fuse—The AC fuse inside the unit is not user- serviceable. If you cannot turn on the unit, contact your Onkyo dealer.

3.Care—Occasionally you should dust the unit all over with a soft cloth. For stubborn stains, use a soft cloth dampened with a weak solution of mild deter- gent and water. Dry the unit immediately afterwards with a clean cloth. Don’t use abrasive cloths, thin- ners, alcohol, or other chemical solvents, because they may damage the finish or remove the panel let- tering.

4.Power

WARNING

BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME, READ THE FOLLOWING SEC- TION CAREFULLY.

AC outlet voltages vary from country to country. Make sure that the voltage in your area meets the voltage requirements printed on the unit’s rear panel (e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).

Some models have a voltage selector switch for compatibility with power systems around the world. Before you plug in such a model, make sure that the voltage selector is set to the correct voltage for your area.

Setting the [STANDBY/ON] switch to STANDBY does not fully shutdown the unit. If you do not intend to use the unit for an extended period, remove the power cord from the AC outlet.

5.Never Touch this Unit with Wet Hands—Never handle this unit or its power cord while your hands are wet or damp. If water or any other liquid gets inside this unit, have it checked by your Onkyo dealer.

6.Handling Notes

•If you need to transport this unit, use the original packaging to pack it how it was when you origi- nally bought it.

•Do not leave rubber or plastic items on this unit for a long time, because they may leave marks on the case.

•This unit’s top and rear panels may get warm after prolonged use. This is normal.

•If you do not use this unit for a long time, it may not work properly the next time you turn it on, so be sure to use it occasionally.

Memory Backup

The AV receiver uses a battery-less memory backup system in order to retain radio presets and other settings when it’s unplugged or in the case of a power failure. Although no batteries are required, the AV receiver must be plugged into an AC outlet in order to charge the backup system. Once it has been charged, the AV receiver will retain the settings for several weeks, although this depends on the environment and will be shorter in humid climates.

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Onkyo TX-SR403 instruction manual Precautions, Power
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TX-SR403 specifications

The Onkyo TX-SR403 is a versatile and feature-rich audio receiver that caters to both home theater enthusiasts and casual listeners alike. Introduced as part of Onkyo's lineup, this model aims to deliver high-quality sound reproduction, making it an excellent choice for anyone looking to enhance their audio experience.

One of the standout features of the TX-SR403 is its multi-channel audio capabilities. This receiver supports up to 6.1 channels, allowing for an immersive surround sound experience that draws listeners into their favorite movies, music, and video games. The power output is rated at 100 watts per channel, which is more than sufficient to fill a medium-sized room with dynamic and clear sound. It supports various audio formats, including Dolby Digital and DTS, ensuring compatibility with a wide range of media.

The TX-SR403 also excels in connectivity options. It is equipped with multiple HDMI inputs, along with component and composite video inputs, making it easy to connect to various devices such as Blu-ray players, gaming consoles, and streaming devices. This versatility ensures that users can easily integrate their existing home entertainment systems, allowing for seamless audio and video interaction.

In addition to its audio prowess, the TX-SR403 incorporates advanced technologies designed to enhance the listening experience. The receiver features Onkyo's proprietary Wide Range Amplification Technology (WRAT), which increases the dynamic range and improves tonal accuracy across various frequencies. This technology helps eliminate distortion, even at high volume levels, offering a cleaner and more enjoyable listening experience.

The user interface on the TX-SR403 is straightforward, featuring an easy-to-read display and intuitive control options. The remote control is user-friendly, enabling users to switch between different inputs, adjust settings, and create custom sound profiles with ease. The receiver also includes built-in FM/AM tuners for those who enjoy listening to radio broadcasts.

Overall, the Onkyo TX-SR403 stands out as a robust audio receiver that combines quality, functionality, and ease of use. Whether you are looking to set up a comprehensive home theater or simply want to improve your music listening experience, the TX-SR403 is a commendable choice that delivers excellent performance and versatility for all your audio needs.
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