Technics SA-AX730

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.
For detailed instructions,
contact an authorized
servicenter in
the U.S.A. and Panasonic Canada Inc. Customer Care
Centre
in
Canada.
in the U.S.A.
1-800-211-7262
or web site
(http://www.panasonic.
com)
in Canada
905-624-5505
or web site
(www.panasonic.ca/faq.html)
Reference
pages
indicated
in blank circles. (For example:©
)
Problem
| Probable
cause(s) Suggested remedy
While listening to FM
broadcasts
A
hiss is heard during
stereo broadcasts, but not
during
monaural ones.
Modulation for the two types
is
different
so some
noise may
be heard during stereo broadcasts.
•
Reduce
the
treble,
(
©
)
•
Change the
location and direction
of the
antenna.
(<D <E>)
•
Use an outdoor antenna.
(0
)
•
Use an antenna with
more elements.
Excessive noise
in both
stereo an
monaural
broadcasts.
Antenna location and direction
poor.
Station is distant.
STEREO and QUARTZ
LOCK
indicators
flicker.
Antenna location
and
direction
poor.
•
Change the location and direction
of
the
antenna.
«D <E>)
•
Use
an
outdoor antenna.
(
©)
•
Use
an antenna with
more elements.
Station
is distant.
Stereo broadcasts highly
distorted.
Building
or mountain
nearby.
While listening
to
AM
broadcasts
An unusual
"beat" sound
is heard.
A television is on nearby.
•
Separate the two or turn the television off.
Adjacent
signal is interfering.
•
Reduce the treble.
(©)
A
low-pitched
"hum" is
heard when
a
station is
tuned.
Power cord is
near
the antenna wires.
•
Separate the power cord from the wires.
Electronic interference
from the power
cord is
fed
to the
speakers.
•
Use an
outdoor
antenna.
((£)
)
A
continuous or
intermittent
hiss
is heard.
Interference
from other appliances,
fluorescent
lights, TVs,
small motors,
etc., through discharge
and oscillation.
•
Separate
this
unit from such appliances.
Common
Problems
Unit doesn't come on. The
power cord plug
is not fully inserted.
•
Confirm
the
plug is fully inserted.
Sound is
not heard.
The speaker
indicators are
off.
•
Turn on the
speaker indicators.
The
tape monitor function
is on.
•
Press the
tape
monitor
button.
(®
)
The
muting
function is on.
•
Press the muting button on the remote control.
(©)
Incomplete
or incorrect
connection to speakers
and external equipment.
•
Check all connections.
(0
-
©,
<E>
)
The
incorrect
input source has
been selected.
•
Select
the
correct source.
(<fj)
)
Sound
suddenly
stops or
none
is heard when the
unit is switched on.
"OVERLOAD"
appears on
the display.
The
protection
circuitry
has functioned
because:
the positive and negative
speakers wires
have
shorted;
speakers with a lower impedance
than
this
unit's rated impedance
are
being used; the
speakers are
under
strain through excessive
volume,
excessive power, or by being
used
in
a
high
temperature
environment.
•
Switch off the unit,
determine and
correct the
cause, then switch the
unit on.
•
Use
speakers
with
the right impedance rating.
(©-©)
8
c
0)
OS
39
RQT4731