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ENGLISH
21
TROUBLESHOOTING
If a problem should arise,first check the following.
1. Are the connections correct ?
2. Have you operated the receiver according to the Operating Instructions ?
3. Are the speakers, turntable and other components operating property ?
If this unit is not operating properly, check the items listed in the table below. Should the problem persist, there
may be a malfunction.
Disconnect the power immediately and contact your store of purchase.
Symptom Cause Measures Page
DISPLAY not lit and
sound not produced
when power switch
set to on.
Power cord not plugged in securely. Check the insertion of the power cord
plug.
6
DISPLAY lit but sound
not produced.
Speaker cords not securely connected.
Improper position of the audio function
button.
Volume control set to minimum.
MUTING is on.
Digital signals not input Digital input
selected.
Connect securely.
Set to a suitable position.
Turn volume up to suitable level.
Switch off MUTING.
Input digital signals or select input jacks
to which digital signals are being input.
9, 10
19
20
21
19
DISPLAY not lit and
power indicator is
flashing rapidly.
Speaker terminals are short-circuited.
Block the ventilation holes of the set.
The unit is operating at continuous high
power conditions and/or inadequate
ventilation.
Switch power off, connect speakers
properly, then switch power back on.
Turn off the sets power, then ventilate it
well to cool it down.
Once the set is cooled down, turn the
power back on.
Turn off the sets power, then ventilate it
well to cool it down.
Once the set is cooled down, turn the
power back on.
9, 10
3
3
Sound produced only
from one channel.
Incomplete connection of speaker cords.
Incomplete connection of input/output
cords.
Connect securely.
Connect securely.
9, 10
6 ~ 10
Positions of
instruments reversed
during stereo playback.
Reverse connections of left and right
speakers or left and right input/output
cords.
Check left and right connections. 10
Common problems when listening to the CD, records, tapes and FM broadcasts, etc.
Symptom Cause Measures Page
Humming noise
produced when record
is playing.
TV or radio transmission antenna nearby. Contact your store of purchase.
Howling noise
produced when
volume is high.
Turntable and speaker systems too close
together.
Floor is unstable and vibrates easily.
Separate as much as possible.
Use cushions to absorb speaker
vibrations transmitted by floor. If
turntable is not equipped with insulators,
use audio insulators (commonly
available).
Sound is distorted.
Stylus pressure too weak.
Dust or dirt on stylus.
Cartridge defective.
Apply proper stylus pressure.
Check stylus.
Replace cartridge.
When playing records
Remote control unit
This unit does not
operate properly when
remote control unit is
used.
Batteries dead.
Remote control unit too far from this
unit.
Obstacle between this unit and remote
control unit.
Different button is being pressed.
< and > ends of battery inserted in
reverse.
Replace with new batteries.
Move closer.
Remove obstacle.
Press the proper button.
Insert batteries properly.
10
10
10
Speaker system (SYS-550SD)
Active subwoofer (DSW-3L):
LED does not light and
no sound is produced
when power is turned
on.
AC power plug is not securely
connected.
Check the connection of the AC power
plug.
37
Active subwoofer (DSW-3L):
LED lights but no
sound is produced.
Cords are not securely connected.
Volume adjustment control is turned all
the way down.
Connect securely.
Turn the control and set it to the desired
position.
9, 10
Active subwoofer (DSW-3L):
LED flashes and no
sound is produced.
Protective circuit has been activated
due to excess input or rise in
temperature.
Set the power switch to the OFF
position, wait at least 1 minute, then
set the power switch back to the ON
position. If the problem persists, unplug
the AC power cord from the AC power
outlet and contact your store of
purchase.
Active subwoofer (DSW-3L):
Sound is distorted.
Volume level is too high.
Sound is being distorted on connected
amplifier.
Turn the volume adjustment control
counterclockwise to lower the volume.
Do not amplify the bass sound on the
amplifier. (Lower the amplifiers bass
adjustment control or volume.)
37, 38
Active subwoofer (DSW-3L):
Oscillation (loud continuous
sound produced).
Volume of active subwoofer or
amplifier set too high.
Lower the volume of the active
subwoofer or amplifier.
37, 38
For improvement purposes, specifications and design are subject to change without notice.
45


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