Sony STR-DN840 Operating Instructions
![Sony STR-DN840 manual cover](/images/588a268aa1c2614340ec6ad2/thumbs/thumb175x175.webp)
To perform a factory reset on the Sony STR-DN840, press and hold the "POWER" button while also pressing the "TONE MODE" and "TONE CONTROL" buttons. Release them when "CLEARING" appears on the display.
Ensure all speaker connections are secure and the correct input is selected. Check that the speakers are not muted and adjust the volume. If the issue persists, try a different set of speakers to rule out speaker malfunction.
Press the "BLUETOOTH" button on the receiver. Then, enable Bluetooth on your device and search for "STR-DN840" in the available devices list. Select it to pair and connect.
Check if the HDMI cable is properly connected to both the receiver and the TV. Ensure the correct HDMI input is selected on the TV. Try using a different HDMI cable or port if the problem continues.
Connect the receiver to the internet via Ethernet. Go to the Home menu, select "Settings," then "System Settings," and choose "Network Update" to start the firmware update process.
Use a soft, dry cloth to clean the exterior. Avoid using any chemical cleaners. Ensure the vents are clear of dust and debris to maintain proper airflow and prevent overheating.
Experiment with different sound fields and equalizer settings. Properly position speakers according to the room layout and consider using high-quality speaker cables and connections.
Connect the additional speakers to the "ZONE 2" outputs. Press the "ZONE" button on the remote, select "ZONE 2," and choose the desired input source to play different audio in another room.
The receiver might be overheating. Ensure it is in a well-ventilated area and not enclosed. Check for any ventilation blockages and verify that the speaker impedance matches the receiver’s specifications.
Yes, download the "Sony | Music Center" app available for iOS and Android. Connect your smartphone to the same network as the receiver to control it remotely.