Technics SA-GX670 Operating Instructions

Before requesting service for this unit, check the chart below for
a possible cause of the problem you are experiencing. Some sim-
ple 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
Technics dealer for instructions.
While listening to FM broadcasts
An unusual hissing noise is
heard when listening to the
broadcast in stereo, but not
heard when listening
monaurally.
A slight noise may be heard because the method
used for modulation of FM stereo broadcasts is
different than that used for monaural broadcasts.
© Try reducing the treble sound by using the treble con-
trol.
¢ Try changing the location, height and/or direction of
the antenna.
¢ If an indoor antenna is being used, change to an
outdoor antenna.
e Try using an antenna with more elements.
The FM stereo indicator or
the quartz lock indicator
flickers, without completely
illuminating.
An unusual “beat” sound is
heard.
A low-pitched “hum” sound
is heard when the
broadcast is tuned.
No sound is heard.
Sound stops during a
performance, or no sound
is heard when the power is
switched ON.
(The word “OVERLOAD”
appears on the display.)
Poor location and/or direction of the antenna.
Transmitting station is too far away.
While listening to AM broadcasts
Unit is being used at the same time as the
television set.
¢ Try changing the location, height and/or direction of
the antenna.
¢ lf an indoor antenna is being used, change to an
outdoor antenna.
¢ Try using an antenna with more elements.
¢ Turn off the television set, or use this unit farther
away from it.
Interference from adjacent broadcast signal.
The power supply frequency from the power cord
is modulated and heard from the speakers.
Problems noted at all times
Both A and B speakers are turnd OFF.
The tape monitor function is ON.
The AM loop antenna connection wires are too ¢ Place the antenna connection wires and the power
close to the power cord. cord farther apart.
The muting function is ON.
Connections are incomplete or incorrect to the
speaker systems, etc.
display will scroll through the causes of the problem.)
Use this display as a guide to remedy the problem.
The incorrect input selector has been pressed.
¢ Try reducing the treble sound by using the treble con-
trol.
¢ Install a special outdoor antenna.
® Select the input select button for the source to which
you wish to listen and press it one or two times. (The
Check to be sure that all connection wires are
correctly connected.
© Check to be sure that the correct selector is
pressed.
The protection circuitry has functioned because
the positive and negative speaker connection
wires are “shorted”, speaker systems with an
impedance less than the indicated rated
impedance of this unit are used or under severe
use, such as loud volume, excessive power and in
an excessively hot environment.
© Switch off the power, and after determining and
correcting the cause, switch on the power once
again.
e Use a speaker system of the proper impedance
rating.
The DOLBY PRO LOGIC
(SURROUND or 3 STEREO)
indicator and speaker
select Indicators ((A|, [B])
are flashing.
(The word “ERROR”
appears on the display.)
When the Dolby Pro Logic system is ON, both A
and B speakers are turnd ON.
¢ Turn off the Dolby Pro Logic system or one of the
speakers.
When both A and B speakers are being used
simultaneously, the Dolby Pro Logic system is
turned ON.
¢ Turn off one of the speakers.
Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 530-91, Japan
RQT2510-B
Printed in Japan H0494C0

Technics SA-GX670 Specifications

General

Brand	Technics
Model	SA-GX670
Category	Receiver
Language	English