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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.
Probable cause(s)
Suggested remedy
Problems common to all systems
There is no sound when the | Volume is set too low.
Adjust the volume level with the volume control on
power is ON.
the amplifier.
The location of the various
The (+) and (—) connections to one of the
Connect the speaker cord correctly.
musical instruments is not
speakers are reversed.
well defined.
The left and right sounds
The left and right connections to the speaker are
Connect the speaker cords correctly.
are reversed.
reversed.
The left and right connections to the external unit
Connect the external unit's cord correctly.
When listening to the
external unit, the left and
are reversed.
right sounds are reversed.
Only one speaker is
One of the wires of the speaker cord is
Connect the speaker cord correctly.
emitting sound.
disconnected.
There is no sound when a
The (+) and (—) wire of the speaker cords are .
Switch the system to the standby mode, and
source is being played.
shorted.
reconnect the speaker cords so that they are not
shorted. Then switch on the power.
Connect the flat cable steadily.
When the "U70" display is not cleared after the flat
cable have been connected properly, the unit may
be damaged. Consult your dealer.
While listening to FM broadcasts
There is a "rushing noise"
The transmitting station is a long distance away.
elf you are using an indoor antenna, change to an
during a stereo broadcast
outdoor antenna.
which is not audible during
elf you are using a high-grade outdoor antenna, try
a monaural broadcast.
changing the installation location, height, and
orientation.
"U70" appears on the
Fiat cables are not connected steadily.
display.
The installation location and orientation of the
antenna are unsuitable.
The transmitting station is a long distance away.
The power of the TV set or VCR is ON.
Try switching off the TV set or VCR.
There is a building or mountain nearby. [Distortion
Use a high-grade outdoor antenna, and install it in
is caused by interference between the signal from
a good location, height, and orientation for
the transmitting station (direct wave) and the
reception.
signal reflected from the building or mountain
(reflected wave).]
While listening to LW/MW broadcasts
You hear an unusual beat
You are using the system at the same time you
Switch off the TV set, or use the system further
sound.
are playing a TV set.
away from it.
You hear a low-frequency
The antenna wire is near the power cord.
Separate the antenna wire from the power cord.
hum.
When there is a television set nearby
The picture on the TV
The location and orientation of the antenna are
If you are using an indoor antenna. change to an
disappears or stripes
incorrect.
outdoor antenna.
appear on the screen.
The wiring at the back of the system is unsuitable.
| Separate the antenna wire of the TV set from the
system.
You hear excessive noise
during a stereo broadcast,
and occasionally the sound
disappears.
The stereo indicator
flickers and does not light
completely.
The sound during a stereo
broadcast is highly
distorted.
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