19
The unit does not turn ON.
The sound is not reproduced by the correct
speakers.
Sound from the speakers is too quiet.
No sound is output.
Sound for a specific channel is not output.
No sound is output from the Center speaker
or Surround speakers.
No sound is output from the Subwoofer.
Sound from the Subwoofer is too quiet.
The Midnight Theater mode cannot be set.
The LFE LEVEL mode cannot be set.
The Cinema Re-EQ mode cannot be set.
Troubleshooting
If you have any problems with the unit, please check the troubleshooting table below first.
For any problems not covered in the table, please consult your nearest Onkyo authorized service center.
This unit contains a sensitive microcomputer, which under certain circumstances might fail to operate due to excessive noise interference.
In such an event, disconnect the main plug from your electrical outlet and replace it after 5 seconds.
• Insert the unit's power plug completely to a
power outlet.
• Turn on the amplifier's power switch.
• Check that the audio connection cables are
correctly connected. [See pages 7-9]
(Check that the sound reproduced by each
speaker is correct using the test tone.) [See
page 12]
• Increase the sound volume using the
VOLUME
s
button.
• Select the correct input mode by pressing
the INPUT-1, INPUT-2, or MULTI-CH
INPUT button. [See page 14, 15]
• Adjust the output level by using the unit's
VOLUME button and A/V amplifier's
master volume control. [See pages 12-15]
• Check the encoding method of the input
signal. [See page 14]
• Connect the laser disc player via a
demodulator [See page 7].
• Check that the audio connection cables are
correctly connected.
• Check that the A/V amplifier is set
properly.
• Set the "SURROUND", "3 STEREO", or
"PHANTOM" mode by using the LIS-
TENING MODE button. [16]
• Check that the speaker setting is correct.
[See page 10]
• Check that the speaker setting is correct.
[See page 10]
• Set the subwoofer output level properly by
using the test tone. [See pages 12-13.]
• Check that the DOLBY DIGITAL indicator
is lit. [See page 16]
• Check that the player is connected
correctly and that the "OPTICAL" or
"COAXIAL" input mode is selected.
[See page 14, 15]
• Set the "SURROUND", "3 STEREO", or
"PHANTOM" mode by using the
LISTENING MODE button. [See page 16]
Symptom
Cause
Remedy
• The power plug is not inserted completely.
• The unit is plugged into the amplifier's
switched power outlet, but the amplifier is
turned off.
• The connection for audio connection
cables is incorrect.
• One of the stereo audio cords for connecting
six channels is disconnected.
• The output level is set to an extremely low
level.
• The input mode selection is incorrect.
• The output level is set to "-
∞
".
• The source signal has a sampling
frequency of other than 32 kHz, 44.1 kHz
or 48 kHz.
• The source signal format is other than
Dolby Digital or PCM format.
• An AC-3RF signal is input from the laser
disc player.
• The audio connection cables are discon-
nected.
• The A/V amplifier volume control is set to
stereo.
• The listening mode is set to "STEREO".
• The speaker setting is "NONE" or "NO".
• The speaker setting is "NONE".
• The ED-301's subwoofer output level is set
to an extremely low level.
• The playing source signal is not Dolby
Digital.
• The input mode selection is incorrect.
• The listening mode is set to STEREO.
