53
Eng
lish
TROUBLESHOOTING
ADDITIONA
L
INF
O
RMA
T
IO
N
■
Tuner
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 AC power cord from the outlet and
then plug it in again after about 30 seconds.
—
“CHECK SP WIRES”
appears in the front
panel display.
Speaker cables are short circuited.
Make sure all speaker cables are connected correctly.
9
There is noise
interference from
digital or high-
frequency equipment,
or this unit.
This unit is too close to 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
switches to the
standby mode.
The internal temperature became too high
and the overheat protection circuitry was
activated.
Wait until this unit cools down and then turn it back
on.
—
The whirring of the
fan can occassionally
be heard.
This unit is fitted with a fan for cooling
purposes. The fan automatically operates
when the temperature inside the unit
becomes too hot, or when the unit is
turned on.
Problem
Cause
Remedy
Refer to
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.
14
Use the manual tuning method.
23
There is distortion, and
clear reception cannot
be obtained even with a
good FM antenna.
There is multipath interference.
Adjust the antenna position to eliminate
multipath interference.
—
The desired station
cannot be tuned in with
the automatic tuning
method.
The station is too weak.
Use a high-quality directional FM antenna.
—
Use the manual tuning method.
23
Previously preset
stations can no longer
be tuned in.
This unit has been disconnected for a
long period.
Preset the stations again.
24
Problem
Cause
Remedy
Refer to
page