Quick answer
- Ensure the power cable is securely connected to both the receiver and the outlet.
- Check if the power outlet is functional by testing it with another device.
- Look for any blown fuses in the receiver.
- If the receiver is in standby mode, press the power button to turn it on.
Symptoms
If your Onkyo TX SR393 won't turn on, you may notice:
- The display is completely dark.
- No sound is produced when trying to play audio.
- The power indicator light is off or blinking.
- The receiver does not respond to remote control commands.
Quick checks
Before diving into detailed troubleshooting, perform these quick checks:
- Confirm that the power cable is plugged in securely at both ends.
- Test the power outlet with another device to ensure it’s working.
- Inspect the power cable for any visible damage.
- Ensure that any power strips or surge protectors are functioning properly.
Step-by-step fix
- Power Cycle the Receiver: Unplug the receiver from the power outlet. Wait for 10 seconds, then plug it back in and try turning it on.
- Check for Overheating: Ensure the receiver is in a well-ventilated area. If it feels hot, let it cool down before attempting to power it on again.
- Inspect the Remote Control: Replace the batteries in the remote control, as dead batteries can prevent it from functioning.
- Reset the Receiver: If the receiver has a reset button (usually found on the back), press it to reset the device to factory settings.
- Check for Firmware Updates: If you can get it to turn on, check the Onkyo website for any firmware updates that may resolve power issues.
- Test with Minimal Connections: Disconnect all devices from the receiver, leaving only the power cable connected. Try turning it on again to rule out any faulty connections.
If it still doesn't work
If your Onkyo TX SR393 still won't turn on after following these steps, it may require professional servicing. Contact Onkyo customer support for further assistance or consider taking it to an authorized repair center.
FAQ
Q: Why is my receiver not responding to the remote?
A: The remote may have dead batteries or there could be an issue with the receiver's IR sensor. Try using the power button on the receiver itself.
Q: What should I do if the receiver keeps shutting off?
A: This could indicate an overheating issue or a power supply problem. Ensure proper ventilation and check the power supply.
Q: Can I use a different HDMI cable?
A: Yes, using a certified HDMI cable can help with connectivity issues. Consider using a Certified Ultra High Speed HDMI cable (paid link) for optimal performance.