Technics SH-GS71 User Manual

| Troubleshooting guide |
Before requesting service for this unit, check the chart below fora convenient service center, or consult your Technics dealer for
possible cause of the problem you are experiencing. Some simple instructions.
checks or a minor adjustment on your part may eliminate the problem (In U.S.A. consult MSC Authorized Servicenters for detailed
and restore proper operation. instructions or call 1-800-545-2672 for the address of an authorized
If you are in doubt about some of the check points, or if the remedies factory servicenter.)
indicated in the chart do not solve the problem, refer to the directory of
authorized service centers (enclosed with this unit) to locate a
Reference pages indicated in black circle. (For example: ®)
Probable cause(s) Suggested remed
Problems noted at all times ee o a o
No sound is heard when the | The power cord plug is not completely inserted. è Confirm that the power cord plug is connected
power is switched ON. completely.
Connections are incomplete or incorrect to the è Check to be sure that all connection wires are
speaker systems, etc. correctly connected.
The incorrect input selector of the amplifier has @ Check to be sure that the correct selector is-
been pressed. pressed.
The speaker selector is set incorrectly. © Set it to the correct position. ® @ @
The input selector of the graphic equalizer is not e Set to the “SOURCE” position. ® @
set to the “SOURCE” position.
When listening to stereo One of the speakers is connected out of phase [(+) | ¢ Reconnect the speakers maintaining proper
sound, the sound lacks => (~), (=) = (+)]. polarity [i.e., (+) — (4), ©) > ©).
depth (i.e. thin bass, tinny i
sound).
When listening to stereo The left and right speaker connections, or source è Check all connections and correct them if
sound, the left and right connections, are reversed. necessary.
sounds are reversed.
A low-pitched noise (“hum” | The power cord or a fluorescent light, etc., is near | @ Try separating this unit as far as possible from the
or “buzz”) is heard. the connection wires. electric appliance.
Sound is not heard trom The speaker wires are disconnected. e Check and correct the connections of the speaker
one of the speaker systems. wires.
The balance control is set too far to one side. eè Set so that sounds are heard at the center, between
the speaker systems. @
Sound stops during a The volume level is excessively increased. è Decrease the volume level.
performance, or no sound The protection circuitry has functioned because e Switch OFF the power, and, after determining and
is heard when the power is | ine positive and negative speaker connection ` correcting the cause, switch ON the power once
switched ON. wires are “shorted” or speaker systems with an again.
impedance less than the indicated rated è Use a speaker system of the proper impedance
impedance of the amplifier are used. rating.
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=
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While listening to radio broadcasts
A strange hissing noise is Caused by the “discharge phenomenon” and the è Try placing this unit farther away from such
produced continuously or “oscillation phenomenon” of electric appliances equipment.
intermittently. (such as fluorescent lights, TV, small series-type è Install noise-prevention equipment on this unit or
motors, rectification equipment, etc.). on the electric appliance.
While listening to AM broadcasts
An unusual “beat” sound is | Unit is being used at the same time as the è Switch OFF the television set, or use this unit
heard. television set. farther away from it.
A low-pitched “hum” sound | The AM loop antenna connection wires are too e Place the antenna connection wires and the power
Is heard when the close to the power cord. cord farther apart. .
broadcast ts tuned. The power supply frequency from the power cord | e Install a special outdoor antenna. @
is modulated and heard from the speakers.

Technics SH-GS71 Specifications

General

Brand	Technics
Model	SH-GS71
Category	Stereo System
Language	English