Troubleshooting - Panasonic SC-CH11 Operating Instructions Manual

Troubleshooting
Guide
Before requesting
service
for this
unit,
check
the chart below
for
a possible
cause
of
the
problem you are experiencing.
Some
simple checks
or a
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.
Problem
Probable cause(s)
Suggested remedy
Problems
common
to
all
systems
There
is
no sound when
the
power
is
ON
and no
bar
appears
on
the
volume
level display.
Volume
is
set too
low.
Adjust the
volume
level with the
volume
control
on
the
amplifier.
The
location of the various
musical instruments
Is
not
well defined.
The
(+)
and
(-) connections
to
one
of the
speakers
are reversed.
Connect
the
speaker
cord
correctly.
The
left
and
right
sounds
are reversed.
The
left
and
right
connections
to
the speaker
are
reversed.
Connect
the speaker cord
correctly.
Only
one speaker
is
emitting sound.
One
of
the wires
of the speaker cord
is
disconnected.
Connect
the
speaker
cord
correctly.
There
is
no sound when
a
source
is
being
played.
The
(+)
and
{-) wires
of
the speaker cords
are
shorted.
Switch the system
to the
standby
mode, reconnect
the
speaker
cords so
that they are not
shorted.
Then
switch
on
the power.
There
is
a low-frequency
hum when
a source
is
being
played.
A
power
cord or a fluorescent
light is
located near
a connecting
cord.
Keep
electrical
appliances
well
away
from
the
connecting
cords.
The
ERROR
indicator
appears
on
the display
for
about
1
second.
The wrong
operation has
just
taken
place. Perform
the
correct
operation
of the present step
again.
While
listening to
FM
broadcasts
There
is
a
"rushing" noise
during a stereo
broadcast
which
Is
not audible during
a
monaural
broadcast.
Noise
is
more
likely
to
appear on a
stereo
signal
than
on a monaural
signal.
•If
you are using an
indoor antenna,
change
to
an
outdoor antenna.
•
If
you
are using a
special outdoor antenna,
try
changing
the
installation location, height,
and
orientation.
•Try
switching
off
the
television
or
VCR.
• Press
the
FM
mode
button to
change
the reception
from
stereo
to
monaural mode.
You hear excessive noise
during a stereo broadcast,
and
occasionally the sound
disappears.
The
stereo indicator of the
tuner
flickers
and does
not
light
completely.
The
installation location
and
orientation of the
antenna
are
unsuitable.
The
transmitting station
is
a
long distance away.
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
LW/MW
broadcasts
You
hear an unusual beat
sound.
You
are using the system
at
the
same
time
you
are
playing
a
TV
set.
Switch
off
the
TV
set,
or use the system
farther
away
from
it.
You
hear a low-frequency
hum.
The antenna
wire
is
near
the
power
cord. Separate
the
antenna
wire
from the
power
cord.
Ik