43
En
Troubleshooting
English
INTR
ODUCTION
AD
DITIONAL
INFORMA
T
ION
APPENDIX
PRE
P
ARA
T
ION
BA
S
IC
OPERA
T
ION
AD
V
ANCED
OPERA
T
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■
Tuner
The sound field
parameters and some
other settings of this
unit cannot be
changed.
“MEM.GUARD” in “OPTION MENU” is
set to “ON.”
Set “MEM.GUARD” to “OFF.”
This unit does not
operate properly.
The internal microcomputer has been
frozen by an external electric shock (such
as lightning or excessive static electricity)
or by a power supply with low voltage.
Disconnect the power cable from the AC wall outlet
and then plug it in again after about 30 seconds.
—
“CHECK SP WIRES”
appears on the front
panel display.
Speaker cables are short-circuited.
Make sure all speaker cables are connected correctly.
There is noise
interference from
digital or radio
frequency equipment.
This unit is too close to the digital or high-
frequency equipment.
Move this unit further away from such equipment.
—
The picture is
disturbed.
The video source uses scrambled or
encoded signals to prevent dubbing.
This unit suddenly
enters the standby
mode.
The internal temperature is too high and
the overheat protection circuitry has been
activated.
Wait about 1 hour for this unit to cool down and then
turn it back on.
—
Virtual CINEMA DSP
is not activated.
“MULTI CH” is selected as the input
source.
Select an input source other than “MULTI CH.”
Headphones are connected to the
PHONES jack.
Disconnect the headphone plug from the PHONES
jack.
—
This unit is in the “5ch Stereo” mode.
Exit from the “5ch Stereo” mode.
SILENT CINEMA is
not activated.
“MULTI CH” is selected as the input
source.
Select an input source other than “MULTI CH.”
The unit is in the “2ch Stereo,”
“STRAIGHT” or “Music Enh.2ch” mode.
Exit from the “2ch Stereo,” “STRAIGHT” or “Music
Enh2ch” mode.
Problem
Cause
Remedy
See
page
FM
FM stereo reception is
noisy.
The characteristics of FM stereo
broadcasts may cause this problem
when the transmitter is too far away or
the antenna input is poor.
Check the antenna connections.
Try using a high-quality directional FM
antenna.
—
Use the manual tuning method.
There is distortion, and
clear reception cannot
be obtained even with a
good FM antenna.
There is multi-path interference.
Adjust the antenna position to eliminate
multi-path interference.
—
The desired station
cannot be tuned into
with the automatic
tuning method.
The signal is too weak.
Use a high-quality directional FM antenna.
—
Use the manual tuning method.
Previously preset
stations can no longer
be tuned into.
This unit has been disconnected for a
long period.
Set preset stations.
Problem
Cause
Remedy
See
page
