Listening To Fm Broadcasts - Technics SD-S947 Operating Instructions Manual

Problem I Probable cause(s) I Suggested remedy I
While listening to FM
An unusual hissing noise is
heard when listening to the
broadcast in stereo, but not
heard when listening
monaurally.
Noise is excessive in both
stereo and monaural broad-
casts.
The FM stereo indicator or
the quartz lock indicator
flickers, without completely
illuminating.
Excessive distorUon in the
sound of sterso broedcasts.
broadcasts
Due to the differences between a monaural and a
stereo signal, a higher level of signal strength is
required for proper stereo reception. If the signal
level is low, a hissing noise may be produced on
the stereo channel.
Poor location and/or direction of the antenna.
Transmitting station is too far away
Poor location and/or direction of the antenna.
Transmitting station is too far away.
Nearby building or mountain.
[Multipsth distortion is being caused by the mutual
interference of broadcasl signals received directly
from the transmitting station (direct waves) and sig-
nab being reflected from nearby buildings or
mountains (reflected waves).]
Broadcast signals are being disturbed by nearby
automobile traffic or airplanes.
• Try reducing the treble sound by using the treble con-
trol of the amplifier.
• In this case, set for monaural reception to reduce the
hiss. Note, however, that the broadcast will not be
heard as stereo.
• Try changing the location, height and/or direction of
the antenna.
• If an indoor antenna is being used, change to an out-
door antenna. -..........
• Try using an antenna with more elements.
• Try changing the Icoation, height and/or direction of
the antenna.
• If an indoor antenna is being used, change to an out-
door antenna.
• Try using an antenna with more elements.
P
Sound is distorted, "pop- • Relocate the antenna and the connsctlonwires to a
ping" noise is heard, and/or place farther away from where automobiles pass.
the volume level becomes
lOW.
While listening to compact discs _
Changer will not play. A disc(s) or other foreign.object(s) has fallen inside • Open the loading drawer, and then remove the
the changer, object.
Moisture has collected in the changer. • Switch on and allow the changer to dry out for
about one hour before using it.
The disc in the changer • Set the disc with the label facing right.
does not play. • Wipe the disc with a soft doth.
• Replace the disc with a new one.
Play stops before changing
to the next disc. 4.
A certain music passage
can't be played correctly.
There is noise from the
tuner or disturbance on the
"IV screen.
The error message "NO
PGM" appears on the display,
whan pregram playisstated.
The error message "ERROR"
appears on the display, and
thechanger s tops opsraUno_-
The error message "F-26"
appaars on the displayand
thachanger s tops opsreUng.
The error message "rAKE
OUT" appears on the dis-
play and the changer stops
operating.
The disc label is facing left.
The disc is dirty.
'The disc is scratched,
The disc is warped.
The disc is not,within specified standards.
The front panel is open.
"l'h_e disc is dirty.
The disc is scratched.
Caused by high-frequency signals from this
changer.
Playwas started withouta track beingpro-
grammed.
• Close the panel
• Wipe the disc with a soft cloth.
• Replace the disc with a new one.
• Use the changer further away from the tuner or TV.
• If the tuner or TV's antenna is the indoor type, use
an outdoor one.
• Program a track.
The mechanism of the changer has been improp- " •Tum the unit off and,then back on again.
edy adjusted.
The servo LSI has malfunctioned. • Unplug the changer from its outlet, replug iti.nand
turn the changer ON again. _-
A disc has been put in the slot of the disc in play. • Remove the disc whose number is displayed and
press the stop button.
Because of light or noise, the changer has detect- • Check whether there is a disc'in the displayed slot.
ed a disc in the slot ol the disc being played, even W_ith the front panel dose, hold down • for at least 4
though it is empty, seconds.
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