Technics SC-CH700 User 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 units
No sound is emitted when
the power is switched ON.
appears on the volume level display.
Adjust the volume level with the volume control on the
amplifier.
The location of the various
musical instruments is not
well defined.
Reverse the (+) and (-) connections to one of
the speakers.
Connect the speaker cord correctly.
The left and right sounds
are reversed.
Reverse the left and right connections to the
speaker.
Connect the speaker cord correctly.
A low frequency hum is
heard when a source is
being played.
The power cord or a fluorescent light is located
near a connecting cord.
Keep electrical appliances well away from the
connecting cords.
Sound is emitted from only
one speaker.
One of the wires of the speaker cord is
disconnected.
Connect the speaker cord correctly.
No sound is emitted when
a source is being played.
The (+) and (-) wires of the speaker cords are
shorted.
Switch the system to standby mode, re-connect the
speaker cords so that it is not shorted, then switch the
power ON again.
While listening to FM broadcasts
A “rushing" noise which is
not heard during a
monaural broadcast is
heard during a stereo
broadcast.
Noise is more likely to appear on a stereo signal
than on a monaural signal.
•If an indoor antenna is being used, change to an
outdoor antenna.
• If a special outdoor antenna is being used, try
changing the installation location, height, and
orientation.
•Try switching off the television or video deck.
•Press the FM mode button on the remote control to
change the reception from stereo to monaural mode.
Much noise is heard during
a stereo broadcast, and
occasionally the sound
from the program
disappears.
The installation location and orientation of the
antenna are unsuitable.
The transmitting station is a long distance away.
The stereo indicator of the
tuner flickers and does not
light completely.
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 MW/LW broadcasts
An unusual beat sound is
heard.
The system is being used at the same time as a
television set.
Switch off the television set, or use the system farther
away from the television set.
A low frequency hum Is
heard.
The antenna wire is near the power cord.
Separate the antenna wire from the power cord.
When there is a television set nearby
The picture disappears or
stripes can be seen.
The location and orientation of the antenna are
incorrect.
•If an indoor antenna is being used, change to an
outdoor antenna.
•Separate the television set from the system.
The wiring at the back of the system is unsuitable.
Separate the antenna wire of the television set from
the system.
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Technics SC-CH700 Specifications

General

Brand	Technics
Model	SC-CH700
Category	Stereo System
Language	English