Onkyo TX NR 525 Instruction Manual
![Onkyo TX NR 525 manual cover](/images/bd87fb65ebc3ed5c4c793024/thumbs/thumb175x175.webp)
To perform a factory reset, press and hold the CBL/SAT button, then press the On/Standby button. Continue holding CBL/SAT until "Clear" appears on the display. Release both buttons to complete the reset.
First, ensure all cables are properly connected. Check the speaker settings and volume levels. Verify that the correct input source is selected. If the issue persists, try resetting the receiver to factory settings.
Connect the receiver to the internet via Ethernet. Press the Setup button, navigate to "Hardware Setup," then "Firmware Update." Follow the on-screen instructions to complete the update.
Connect the subwoofer cable to the SUBWOOFER PRE OUT on the back of the receiver. Ensure the subwoofer is powered on and set the crossover frequency according to your subwoofer's manual.
The TX-NR525 does not have built-in Bluetooth. You can use an external Bluetooth adapter connected to an available audio input to stream audio.
Check all HDMI connections and ensure cables are secure. Try different HDMI cables and ports. Ensure the HDMI settings in the receiver's menu match your devices. Update the receiver's firmware if necessary.
Yes, you can use the Onkyo Remote App available for iOS and Android. Ensure the receiver is connected to the same network as your mobile device for control.
Dust the exterior regularly and ensure proper ventilation by keeping the unit on a flat surface with space around it. Check connections periodically and update the firmware when updates are available.
Use the included setup microphone and run the Audyssey automatic calibration. Place the microphone at the main listening position and follow the on-screen instructions to optimize your audio settings.
Check the power cable and outlet. Ensure the receiver is not in standby mode. If the issue persists, try a different outlet or consult a professional technician if there is no response.