Technics SC-S2350 - Troubleshooting Guide

Reference a
56
RQT§333
| 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
For detalled 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
convenient service center, or consult your dealer for instructions.
Probable cause(s) Suggested remedy Page(s)
Common Problems
Sound is not heard when
the power is switch on.
When listening to stereo
sound, the sound lacks
depth (i.e. thin bass, tinny
sound).
When listening to stereo
sound, the left and right
sounds are reversed.
A low-pitched noise (“hum”
or “buzz”) is heard.
Sound is not heard from
one of the speaker systems.
Cannot play CD, DVD, or
TV.
Sound suddenly stops or
none is heard when the
power is switched on.
“OVERLOAD” appears on
the display of receiver.
“F70" appears on the
display of receiver.
(http://www. panasonic.com)
in Canada 905-624-5505 or web site
(www.panasonic.ca}
The power cord plug is not fully inserted.
e Confirm the plug is fully inserted.
Incomplete or incorrect connection to the e Check all connections. 7-12
speaker systems, etc.
The speakers indicators are off. e Turn on the speaker indicators. oas |
The tape monitor function is on.
e Press the tape monitor button. 18, 36
The input selector is set incorrectly. e Select the correct source. ¡MBA
One of the speakers is connected out of
phase [(+) — (~), (-) — (+)].
The left and right speaker connections, or
source connections, are reversed.
e Reconnect the speakers maintaining proper 11, 12
polarity [i.e., (+) — (+), -)—> (1.
| e Check all connections and correct them if
necessary.
A power cord, fluorescent light, etc., is near e Try separating this unit as far as possible
the connection wires. from the electric appliance.
The speaker wires are disconnected.
e Check and correct the.connections of the
speaker wires.
The balance control is set too far to one side. | ® Set so that sounds are heard at the center,
between the speaker systems.
The DIGITAL input mode is set to DIGITAL or
ANALOG.
The protection circuitry has functioned
because the positive and negative speaker
wires are shorted; speakers with a lower
impedance than the receiver rated impedance | e Use a speaker system of the right
are being used; the speakers are under strain
through excessive volume, excessive power,
or by being used in a high temperature
environment.
While enjoying the surround modes
center, surround or
subwoofer speakers.
e Change the setting to suit the type of
connection you have made.
e Switch off the power, and, after determining
and correcting the cause, switch the power |
on.
impedance rating.
e Turn off the power and then turn it on again,
or disconnect the AC power supply cord
and then connect it to your household AC
outlet again.
{If “F70” remains on the display, consult an
authorized service center or your dealer.)
The presence mode setting has been
incorrectly set to “STEREO”.
SURROUND and SFC
cannot be selected.
Cannot play Diby Digital or
DTS sources.
An SFC mode is on.
e Set the SURROUND mode.
e Select “DSP ON”.