Contents

Cover
Before using
- Thank you for purchasing ...
- Important Safeguards
- Precautions
Table of contents
Supplied accessories
Connections
- Connecting to the ONKYO Separate Collection Series Components
- Connecting to other components
- Antenna connections
Operation
- Setting the Clock
- Receiving stations
- Naming a preset station
- Receiving RDS (European models only)
- Using the timer
Other Information
- Troubleshooting
- Index to parts and controls
- Specifications

Onkyo T 405X Instruction Manual

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Onkyo T 405X Specification

The Onkyo T 405X is a high-performance AM/FM stereo tuner designed to deliver superior audio clarity and reception. It integrates advanced tuning technologies to provide precise frequency selection and minimal signal interference. The unit features a digital synthesizer tuner with a frequency range of 87.5 MHz to 108.0 MHz for FM and 522 kHz to 1611 kHz for AM, ensuring comprehensive coverage of available radio stations. It supports a variety of broadcast formats, enhancing its versatility and user appeal.

Equipped with a high-sensitivity front end, the Onkyo T 405X ensures stable and clear reception, even in areas with weak signals. The tuner incorporates a quartz-locked phase-locked loop (PLL) circuitry, which guarantees accuracy and stability in frequency tuning, reducing drift and maintaining consistent audio quality. The device also includes an auto-scan feature, allowing users to easily navigate and store their preferred stations for convenient access.

The Onkyo T 405X boasts a user-friendly interface with a clear digital display that provides real-time information, including station frequency and tuning mode. The tuner is designed for seamless integration into existing audio systems, featuring standard audio output connections. It supports both manual and automatic tuning modes, catering to different user preferences for station selection and adjustment.

Aesthetically, the T 405X is characterized by a sleek, compact design that complements modern audio equipment setups. Its intuitive controls and robust build quality reflect Onkyo’s commitment to delivering durable and reliable audio components. Overall, the Onkyo T 405X is a well-engineered stereo tuner that combines advanced technology with user-centric features, making it a valuable addition to any audio enthusiast’s collection.

Onkyo T 405X F.A.Q.

How do I preset radio stations on the Onkyo T 405X?

To preset radio stations, tune to your desired station, then press and hold the preset button until the display flashes. Use the tuning buttons to select the preset number, and press the preset button again to save it.

Why is there no sound coming from my Onkyo T 405X?

Ensure that the T 405X is properly connected to your amplifier and speakers. Check the volume level and make sure the mute function is not activated. Verify that the antenna is connected for FM/AM reception.

How can I improve FM radio reception on the Onkyo T 405X?

Connect an external FM antenna for better reception, and try adjusting its position. Avoid placing the receiver near electronic devices that might cause interference.

How do I reset the Onkyo T 405X to factory settings?

Unplug the unit, press and hold the power button, and plug it back in while holding the button until 'CLEAR' appears on the display. This will reset the unit to factory settings.

Can I connect the Onkyo T 405X to a digital amplifier?

The T 405X has analog outputs, so you will need an external digital-to-analog converter (DAC) if your amplifier only accepts digital inputs.

What should I do if the display on my Onkyo T 405X is not working?

Check if the unit is properly plugged in and turned on. If the issue persists, inspect for any blown fuses or damaged cables. Consider professional repair if necessary.

How do I switch between AM and FM bands on the Onkyo T 405X?

Press the 'Band' button on the front panel or remote control to toggle between AM and FM bands.

Is it possible to connect the Onkyo T 405X to a home theater system?

Yes, connect the T 405X's audio output to an available input on your home theater receiver using RCA cables. Ensure the receiver is set to the correct input source.

How do I clean and maintain my Onkyo T 405X?

Use a soft, dry cloth to clean the exterior. Avoid using chemicals or water. Regularly check and clean the connectors to prevent dust build-up.

What steps should I follow if the Onkyo T 405X does not power on?

First, check the power cable and ensure it is securely connected. Verify the power outlet is functional. If using a power strip, ensure it is turned on.