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Troubleshooting
If you have any trouble using the A-9377, look for a
solution here. If you cannot resolve the issue yourself,
contact your Onkyo dealer.
Cannot turn on the A-9377.
• Make sure that the power cord is properly plugged into
the wall outlet.
• Unplug the power cord from the wall outlet, wait ten
seconds or more, then plug it in again.
The SPEAKERS A and B indicators are both flashing.
• The amp protection circuit has been activated. Set the
POWER switch to OFF immediately, remove the
power cord from the wall outlet, and contact your
Onkyo dealer.
There’s no sound or it’s very quiet.
• Make sure that all audio plugs are pushed in all the
way (page 12).
• Make sure that the inputs and outputs of all compo-
nents are connected properly.
• Make sure that the polarity of the speaker cables is
correct and that the bare wires are in contact with the
metal part of each speaker terminal (page 11).
• Make sure that the correct input source is selected
(page 16).
• If the MUTING indicator is flashing, press the remote
controller’s [MUTING] button to unmute the A-9377
(page 16).
• Make sure that none of the cables are bent, twisted, or
damaged.
• If your turntable uses an MC type cartridge, you must
use an MC head amp or MC transformer (page 12).
• Make sure the SPEAKERS selector is set correctly. If
it’s set to OFF, no speakers will output sound
(page 15).
Noise can be heard.
• Using cable ties to bundle audio cables with power
cords, speaker cables, and so on may degrade the
audio performance, so do not bundle them together.
• An audio cable may be picking up interference. Try
repositioning your cables.
The tone controls have no effect.
• If the TONE/DIRECT indicator is on, the Direct func-
tion is on and the tone controls have no effect. Press
the [TONE/DIRECT] button to turn the function off.
The TONE/DIRECT indicator will go off (page 16).
The remote controller doesn’t work.
• Make sure that the batteries are installed with the cor-
rect polarity (page 10).
•Try installing new batteries. Do not mix different
types of batteries or old and new batteries (page 10).
• Make sure that the remote controller is not too far
away from the A-9377 and that there’s no obstruction
between the remote controller and the A-9377’s
remote control sensor (page 10).
• Make sure that the A-9377 is not subjected to direct
sunshine or inverter-type florescent lights. Relocate if
necessary (page 10).
• If the A-9377 is installed in a rack or cabinet with col-
ored glass doors, the remote controller may not work
reliably when the doors are closed (page 10).
Cannot control other components?
• If it’s an Onkyo component, make sure that the
cable and analog audio cable are connected properly.
Connecting only an cable will not work. (page 14)
Power
Audio
Remote Controller
The A-9377 contains a microcomputer for signal
processing and control functions. In very rare
situations, severe interference, noise from an
external source, or static electricity may cause it
to lock up. In the unlikely event that this happens,
unplug the power cord from the wall outlet, wait
at least ten seconds, and then plug it back in
again.
Onkyo is not responsible for damages (such as
CD rental fees) due to unsuccessful recordings
caused by the unit’s malfunction. Before you
record important data, make sure that the mate-
rial will be recorded correctly.