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PROBLEM
Power does not come on.
The unit turns off suddenly soon after the
power is turned on.
Hum.
No sound.
No sound from the effect speakers.
No sound from the center speaker.
Poor bass reproduction.
The sound suddenly goes off.
The volume level cannot be increased, or
sound is distorted.
The sound field cannot be recorded.
POSSIBLE CAUSE
AC cord not properly plugged in.
The IMPEDANCE SELECTOR switch on the rear
panel is not set to the upper or the lower end
exactly.
Bad cable connection.
Bad or incorrect input connection.
Incorrect input source selection.
Digital signals other than PCM audio or the Dolby
Digital (AC-3) encoded signals which this unit
cannot reproduce are input to this unit by playing a
CD-ROM etc.
The EFFECT switch is set off.
A Dolby Surround decoding program is being used
with material not encoded with Dolby Surround.
The CENTER SPEAKERS mode is in “PHNTM”.
One of the sound field programs No. 5 to No. 10 is
selected when the input signal of source is 2-
channel stereo (analog/PCM).
The input signals of source encoded with the Dolby
Digital (AC-3) do not have center channel signals.
The LFE/BASS OUT mode is in the SWFR or
BOTH position, though your system does not
include a subwoofer.
Output mode selection for each channel (MAIN,
CENTER or REAR) is improper.
The protection circuit has activated because of
short circuit etc.
The power to the component connected to the
REC OUT jacks of this unit is off.
It is not possible to record the sound field on a tape
deck connected to this unit’s TAPE REC OUT
jacks.
WHAT TO DO
Carefully plug AC plug into outlet.
Set the switch to the upper or the lower end exactly.
Firmly plug in all connection cables.
Check connections.
Select the appropriate input source with the input selector buttons.
Play a source whose signals this unit can reproduce.
Press the EFFECT switch to turn it on.
Use a different sound field program.
Select the appropriate mode.
Select another program.
Refer to the instructions for the source currently played.
Select the MAIN position.
Make output mode selections suitable for your speaker system.
Turning the unit off and then on will reset the protection circuit.
Turn the power to the component on.
TROUBLESHOOTING
General