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Troubleshooting guide
If a problem occurs while you are using the remote controller, first
try to operale the controls on the front panel of the TX=DS797 Io
make sure that it is not due Io a malfunction (or worn out batteries) in
the remote controller.
POWER
Power shuts off immediately after power on.
• Amplifier protection circuitry has been activated.
-"*Remove the power cord from outlet immedialely. Contact
your Onkyo service center.
NO power.
• Power cord is disconnecled.
-'* Connect power cord.
• External noise in the affecting the internal microoomputer.
-"*Turn the power button off and then on again or remove the
power cord from the outlet and then plug it in again.
• Internal fuse is blown.
-'* Contact your Onkyo Service Cenler.
Power turns on but no sound.
• "Muting" is displayed.
-'* Press the MUTING button on the remote controller to turn it
oft'.
• Bad connections or wiring.
-"*Check connections, speaker cables, ete.
• Amplifier protection circuitry has been activated.
-'* Contact your Onkyo Service Center.
The sound of the playback source is not heard.
• Input selector is not set properly.
-'* Set to correct input source.
• Headphones are connected.
-"*Lower volume and then disconnect heaflphones.
SPEAKERS
No sound from the center speaker, or at very low
volume.
• Speaker cable is no1 connected.
--* Check the connection between the amplifier and the speaker.
• Listening mode is set 1o Stereo or Direct.
--* Set the Listening mode to any mode other than Stereo or
Direct. The output 1o the center speaker may differ depending
on the listening mode.
• Center speaker level is set 1o minimum.
--* Set the Center speaker level to the appropriate volume (page
31).
• Tbe Center setdng of 1heSpeaker Config submenu is set to "None?'
-'* Set the Center setting at the Speaker Config submenu to
"Large" or "Small" (see page 29).
No sound or very low volume from subwoofer.
• Subwoofer is setto "No."
-'* Check the speaker setting (pages 29, 40).
• Subwoofer speakers oulpet level setting is improper.
--* Check the oulput level of the Subwoofer using the test tone.
Low frequency humming is heard.
• Not properly grounded.
-"* Check outer conductor of input plugs.
• Turntable motor is no1 properly grouoded.
-"* Check for proper ground connection.
• Audio connection cables on the rear panel are connected
inoorrectly.
-"* Adjust the placement of the cable 1o reduce hmn.
72
Howling is heard when the volume is turned up.
• Turntable and speakers are located 1oo close together.
--* Move them farther apart.
Rough or scratchy sound is heard. High range is not
clear.
• The needles of turntable is dirty or worn, or a problem exists
with a connected component.
--* Refer to the instruction of the connected components and
check for problem.
• Treble control is too high.
--* Turn treble down (see page 40).
No sound is output from the surround back speakers.
• The setting for the surround back speakers does not mateh the
actual configuration.
--* Check the Sun" Back Out setting (OSD MenuSpeaker Setup
Speaker Config). If one surround back speaker is
connected, select "1 ch," and if two surround back speakers
are connected, select "2 ch" (page 29).
FM/AM TUNER
AM stations cannot bereceived.
• AM loop antenna is no1 connected.
--* Connect the included AM loop antenna to the AM antenna
terminals.
Buzzing noise on AM stations (particularly noticeable at
night or with weak stations).
• Noise from electrical apparatus such as fluorescent lamp.
--* Move the AM loop antenna to different position.
--* Set up an outdoor AM antenna.
Noise is heard at high-pitched sounds on AM stations.
• Noise from TV set.
-"* Place the AM loop antenna as far as possible fi'om the TV.
-"* Move unit away from TV set.
Crackling noise on both AM and FM stations.
• Noise caused by fluorescent lamp being turned on and off.
--* Move antenna as far as possible from the fluorescent lamp.
• Noise from aulomobile ignition.
--* Install an FM outdoor antenna as far as possible from the
road.
--* Change the position or direction of the outdoor antenna.
The indicators light for stereo reception, but sound is
distorted and stereo separation is bad.
• Station is too strong.
--* Change to FM indoor antenna.
• Multiple reflection of the radio waves because of tall buildings
or mountains.
--* Use antenna that has better directivity and select a point
where distortion is least.
Indicators for stereo reception flicker and hiss is heard
on FM stations.
• Station is 1oo weak.
--*Install an outdoor FM antenna.
• Stereo FM broadcasts cover only about half the distance of an
ordinary broadcast.
--* Change the position or direction of the ouldoor antenna.
No preset station is recalled.
• Power cord has been unplugged or the POWER switeh has been
turned off for a long time.
--*The memory contents are lost. Slore all stations again.
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