Onkyo Complete Troubleshooting Solutions for HT-R791 AV Receiver

Troubleshooting

If you have any trouble using the AV receiver, look for a solution in this section. If you can’t resolve the issue yourself, contact your Onkyo dealer.

If you can’t resolve the issue yourself, try resetting the AV receiver before contacting your Onkyo dealer.

To reset the AV receiver to its factory defaults, turn it on and, while holding down CBL/SAT, press

8ON/STANDBY. “Clear” will appear on the AV receiver’s display and the AV receiver will enter standby mode.

Note that resetting the AV receiver will delete your radio presets and custom settings.

Remote indicator

RECEIVER

HOME

To reset the remote controller to its factory defaults, while holding down RECEIVER, press and hold down HOME until the remote indicator lights (about 3 seconds). Within 30 seconds, press RECEIVER again.

The on-screen menus appear only on a TV that is connected to HDMI OUT. If your TV is connected to other video outputs, use the AV receiver’s display when changing settings.

Power

■ Can’t turn on the AV receiver

Make sure that the power cord is properly plugged	—
into the wall outlet.

Unplug the power cord from the wall outlet, wait five — seconds or more, then plug it in again.

■The AV receiver turns off unexpectedly

The AV receiver will automatically enter standby	61
mode when Auto Standby has been set and launches.

■The AV receiver turns off and after restoring the power, it turns off again

The protection circuit has been activated. Remove the 12 power cord from the wall outlet immediately. Make sure that all speaker cables and input sources are properly connected, and leave the AV receiver with

its power cord disconnected for 1 hour. After that, reconnect the power cord and turn the power on. If the AV receiver turns off again, unplug the power cord and contact your Onkyo dealer.

Caution: If “CHECK SP WIRE” appears on the AV receiver’s display, the speaker cables may be shorting.

WARNING

If smoke, smell or abnormal noise is produced by the AV receiver, unplug the power cord from the wall outlet immediately and contact your Onkyo dealer.

En-73

Appendix

Audio

■ There’s no sound, or it’s very quiet

Make sure that the digital input source is selected	49
properly.
Make sure that all audio connecting plugs are pushed	14
in all the way.
Make sure that the inputs and outputs of all	15-17
components are connected properly.
Make sure that the polarity of the speaker cables is	12
correct, and that the bare wires are in contact with the
metal part of each speaker terminal.
Make sure that the input source is properly selected.	22
Make sure that the speaker cables are not shorting.	12
Check the volume. The AV receiver is designed for	—
home theater enjoyment. It has a wide volume range,
allowing precise adjustment.
If the MUTING indicator is flashing on the AV	42
receiver’s display, press the remote controller’s
MUTING button to unmute the AV receiver.
While a pair of headphones is connected to the	42
PHONES jack, no sound is output from the speakers.
If there’s no sound from a DVD player connected to	—
an HDMI IN, check the DVD player’s output
settings, and be sure to select a supported audio
format.
Check the digital audio output setting on the	—
connected device. On some game consoles, such as
those that support DVD, the default setting is off.
With some DVD-Video discs, you need to select an	—
audio output format from a menu.
If your turntable uses an MC cartridge, you must	—
connect an MC head amp, or an MC transformer.
Make sure that none of the connecting cables are	—
bent, twisted, or damaged.
Not all listening modes use all speakers.	35
Specify the speaker distances and adjust the	51
individual speaker levels.
Make sure that the speaker setup microphone is not	—
still connected.