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Troubleshooting guide
FM/AM TUNER
AM stations cannot be received.
• AM loop antenna is not attached.
➞ Connect the included AM loop antenna to the AM antenna
terminals (page 18).
Buzzing noise on AM (particularly conspicuous at
night or with weak stations).
• Noise from electrical apparatus such as fluorescent lamp.
➞ Move the AM loop antenna to different position (page 18).
➞ Set up an outdoor AM antenna (page 19).
High-pitched noise or buzzing noise on AM.
• Noise from TV set.
➞ Place the AM loop antenna as far as possible from the TV.
➞ Move unit away from TV set.
Crackling noise on AM, FM.
• Noise caused by turning fluorescent lamp on and off.
➞ Move antenna as far as possible from the fluorescent lamp.
• Noise from automobile ignition.
➞ Install an FM outdoor antenna as far as possible from the
road (page 19).
➞ Change the position or direction of the outdoor antenna.
TUNED and STEREO indicators light on but sound
is distorted and stereo separation is bad.
• Station is too strong.
➞ Change to FM indoor antenna (page 18).
• Multiple reflection of the radio waves because of tall buildings
or mountains.
➞ Use antenna which has better directivity and select a point
where the distortion is least (page 19).
TUNED and STEREO indicators flicker and hiss is
heard on FM.
• Station is too weak.
➞ Install an outdoor FM antenna (page 19).
• Stereo FM broadcasts cover only about half the distance of an
ordinary broadcast.
➞ Change the position or direction of the outdoor antenna.
No station is recalled.
• The power cord has been unplugged or the POWER switch has
been turned off for a long time.
➞ The memory contents are lost. Store all stations again
(page 25).
REMOTE CONTROLLER
Front panel controls function but remote controller
does not.
• No batteries in remote controller.
➞ Insert batteries (page 5).
• Batteries have worn out.
➞ Replace batteries (page 5).
• Remote controller is not pointed at the remote sensor of the
TX-DS494.
➞ Point the remote controller at the remote sensor of the
TX-DS494 (page 5).
• Remote controller is too far from the TX-DS494.
➞ Operate the remote controller within 5 meters (16 feet)
(page 5).
RC-444M remote controller does not operate
Onkyo DVD player properly (North American
models only).
• Pre-programming code is improper.
➞ Change the pre-program code (page 32).
OTHER
LATE NIGHT function cannot be used.
• Playback source is not Dolby Digital encoded.
➞
Check that the Ÿ DIGITAL indicator lights up in the display
(pages 8, 28).
Multichannel audio is not output.
• Input signal format is set to AUTO or ANALOG.
➞ Check that the component is connected to the MULTI
CHANNEL INPUT port and check the input signal format
setting (pages 11, 23).
Also refer to the respective instruction manuals of the compact
disc player, DVD player, video cassette recorder, TV monitor,
etc., that compose your entertainment system.
The TX-DS494 contains an internal microcomputer that performs
high-level operations. However, on extremely rare occasions,
noise or interference from an external source or static electricity
may cause faulty operation. If this occurs, unplug the power cord
from the wall outlet, wait five or more seconds, and then plug it
back in. This should correct the situation.
*To reset the surround mode and other settings to the factory
default settings, hold down the VIDEO 1 button with the
TX-DS494 turned on and then press the SPEAKERS A button.
“CLEAR” appears in the front display and the TX-DS494 enters
the standby state.