Onkyo TX SR308 Instruction Manual
![Onkyo TX SR308 manual cover](/images/84fe6508e7c6d9d888df7706/thumbs/thumb175x175.webp)
To reset your Onkyo TX SR308 to factory settings, turn off the unit and then hold down the VCR/DVD button while pressing the ON/STANDBY button. "Clear" will appear on the display, indicating that the receiver has been reset.
First, ensure all speaker wires are properly connected. Check that the correct input source is selected and that the volume is turned up. Also, verify that the receiver is not set to "Mute" and that the appropriate listening mode is selected.
Connect an HDMI cable from the HDMI OUT port on the receiver to an HDMI IN port on your TV. Ensure the TV is set to the correct HDMI input to receive the signal from the receiver.
Ensure the receiver has adequate ventilation by placing it in an open space. Do not cover the vents and avoid stacking other electronic devices on top of it. If the problem persists, check for dust build-up and clean accordingly.
The Onkyo TX SR308 does not support firmware updates as it lacks network connectivity. Ensure you have the latest hardware features by checking with Onkyo support for any available updates or enhancements.
The Onkyo TX SR308 does not have built-in Bluetooth. However, you can use a Bluetooth adapter connected to one of the available inputs to stream audio from Bluetooth-capable devices.
Use the receiver's built-in speaker calibration function by accessing the 'Speaker Setup' menu. Follow the on-screen instructions to measure and set the speaker levels and distances.
Turn off and unplug the receiver before cleaning. Use a soft, dry cloth to wipe the exterior. Avoid using chemicals or water, and ensure the vents are free from dust by using compressed air if necessary.
Ensure the speakers are correctly positioned and calibrated. Experiment with different listening modes and equalizer settings. Consider upgrading your speakers or adding a subwoofer for enhanced sound performance.
First, replace the batteries in the remote control. Ensure there are no obstructions between the remote and the receiver. If it still doesn't work, try resetting the remote by removing the batteries and pressing each button once.