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43
Knowledge
Tuner section
For the U.S.A.
Note to CATV system installer
This reminder is provided to call the CATV system installer's attention to Article 820-40 of the NEC
that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall
be connected to the grounding system of the building, as close to the point of cable entry as practical.
In case of difficulty
Symptom
Cause Remedy
Radio stations cannot be received.
Noise interferes.
A station has been preset but it can-
not be received by pressing the P.CALL
key.
÷ The antennas have not been connected.
÷ A proper broadcasting band has not been
selected.
÷ The frequency of the station to be received
is not tuned.
÷ The space between radio channels is not
suitable for the area where you live.
÷ Car ignition noise.
÷ Influence of an electric appliance.
÷ A TV set is installed near the system.
÷ The frequency of the preset station is not
tunable.
÷ The preset memory has been cleared be-
cause the power cord has been unplugged
for a long period.
÷ Connect antennas.
÷ Select a band.
÷ Tune to the frequency of the desired sta-
tion.
÷ Refer to "Channel space setting" and reset
the channel space.
÷ Install the outdoor antenna in an apart posi-
tion from the road.
÷ Switch the suspected electric appliance OFF.
÷ Install the TV or the system at an increased
distance between them.
÷ Preset stations with tunable frequencies.
÷ Preset stations again.
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Remote control unit
Symptom
Cause Remedy
Remote control operation is not pos-
sible.
÷ Batteries are exhausted.
÷ The remote control is too far away from the
system, the controlling angle is deviated or
there is an obstacle in between.
÷ There is no CD set in the component to be
played.
÷ Replace with new batteries.
÷ Operate the unit inside the remote control-
lable range.
÷ Set a CD in the component to be played.
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RemedyCauseSymptom
CD player
÷ Place the disc properly, with the label side
facing upward.
÷ Place the disc properly.
÷ Clean the disc referring to “Disc handling
precautions”.
÷ Try another disc.
÷ Refer to “Caution on condensation” and
remove the condensation by evaporation.
÷ Place a disc in the CD player.
÷ Press the CD 6 key.
÷ Clean the disc referring to “Disc handling
precautions”.
÷ Try another disc.
÷ Clean the disc referring to “Disc handling
precautions”.
÷ Try another disc.
÷ Install the unit in a place not subject to
vibrations.
A CD is placed in the player but it can-
not be played.
Sound is not produced.
Sound skips.
÷ The disc is placed upside down.
÷ The disc position is displaced.
÷ The disc is extremely dirty.
÷ The disc is scratched.
÷ Dew is condensed on the optics lens.
÷ The disc has not been placed.
÷ The player is not put to the play mode.
÷ The disc is extremely dirty.
÷ The disc is scratched.
÷ The disc is dirty.
÷ The disc is scratched.
÷ The player is subject to vibration.
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