Panasonic SC-CH55 - Troubleshooting Guide; Problems common to all units; While listening to FM broadcasts; While listening to MW;LW broadcasts

Troubleshooting
Guide
Before
requesting
service
for
this
unit,
check
the
chart
below
for
a
possible
cause
of
the
minor
adjustment
on
your
part
may
eliminate
the
problem
and
restore
proper
operation.
If
you
are
in
doubt
about
some
of
the
check
points,
or
if
the
remedies
indicated
in
the
chart
do
not
solve
the
problem,
refer
to
the
directory
of
Authorized
Service
Centers
(enclosed
with
this
unit)
to
locate
a
convenient
service
center,
or
consult
your
dealer
for
instructions.
Probiem
Probable
cause(s)
Suggested
remedy
Problems common to all units
No
sound
is
emitted
when
“--"
appears
on
the
volume
level
display.
@Adjust
the
volume
level
with
the
volume
control
on
the
power
is
switched
ON.
the
amplifier.
problem
you
are
experiencing.
Some
simple
checks
or
a
The location of the various
musical instruments is not
well defined.
The
left
and
right
sounds
Reverse
the
left
and
right
connections
to
the
are reversed. speaker.
Sound
is
emitted
from
only
One
of
the
wires
of
the
speaker
cord
is
Connect
the
speaker
cord
correctly.
one
speaker.
disconnected.
No
sound
is
heard
when
a
The
(+)
and
(—)
wires
of
the
speaker
cords
are
Switch
off
the
system,
re-connect
the
speaker
source
is
being
played.
shorted.
cords
so
that
it
is
not
shorted,
then
switch
the
power
ON
again.
Reverse the (+) and (—) connections to one of
Connect the speaker cord correctly.
the speakers.
@Connect the speaker cord correctly.
A low frequency hum is
heard when a source is
being played.
The “ERROR” indicator
appears on the display for
about 1 second.
The power cord or a fluorescent light is located
Keep electrical appliances well away from the
near a connecting cord.
connecting cords.
The
wrong
operation
has
just
taken
place.
@Perform
the
correct
operation
of
the
present
step
again.
While
listening
to
FM
broadcasts
A “rushing” noise which
is not heard during a
monaural broadcast is
heard during a stereo
broadcast.
Noise is more likely to appear on a stereo signal
if an indoor antenna is being used, change to an
than on a monaural signal. ,
outdoor antenna.
elf a special outdoor antenna is being used, try
changing the installation location, height, and
orientation.
eTry switching off the television or video deck.
ePress the FM mode button on the remote control to
change the reception from stereo to monaural
mode.
Much noise is heard
during a stereo broadcast,
and occasionally the
sound from the program
disappears.
The installation location and orientation of the
antenna are unsuitable.
The transmitting station is a long distance away.
The stereo indicator of the
tuner flickers and does not
light completely.
The sound during a stereo
broadcast is highly
distorted.
There is a building or mountain nearby.
[Distortion is caused by interference between the
signal from the transmitting station (direct wave)
and the signal reflected from the building or
mountain (reflected wave).]
While listening to MW/LW broadcasts
An
unusual
beat
sound
is
The
system
is
being
used
at
the
same
time
as
a
eSwitch
off
the
television
set,
or
use
the
system
heard.
television
set.
farther
away
from
A low frequency hum is The antenna wire is near the power cord. eSeparate the antenna wire from the power cord.
heard.
~—57—