Yamaha AX-750RS Manuale d'uso - Pagina 10
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NOTES ABOUT ΤΗΕ REMOTE-CONTROL TRANSMITTER
Remote-control
sensor
Within approximately
lf the remote-control transmitter must be used closer to the
main unit, the batteries are weak. Replace both batteries with
new ones.
Notes
e Use only "AA" (R6) batteries for replacement.
e Be sure the polarities are correct.
(See the illustration inside
the battery compartment.)
9 Remove the batteries if the remote-control transmitter will
not be used for an extended period of time.
9 if batteries leak, immediately dispose of them. Avoid
touching the leaked material or letting it come in contact
with clothing, etc. Clean the battery compartment thor-
oughly before installing new batteries.
Notes
* There should be no large obstacles between the remote-
control transmitter and the main unit.
e If the remote control sensor is directly illuminated by strong
lighting (of an inverter type of fluorescent lamp etc.), it may
happen that the remote-control transmitter does not work
correctly. In this case, change the position of the main unit
to avoid being lit directly.
TROUBLESHOOTING
If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be
. Corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help.
Power is not supplied even though the
The power plug is not securely connected
Connect it securely
POWER switch is ON.
There is no sound when any input source is
The correct SPEAKERS switch is not set.
Use the correct SPEAKERS switch
The input wires are not connected securely.
Connect them securely.
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selected with the input selector.
The speaker systems are not connected correctly
Check and secure the connections
The speaker connections are not secure
Secure the connections
The BALANCE control is set all the way to the left
Adjust the BALANCE control correctly
or right.
. The LOUDNESS control is functioning.
Set the L OUDNESS control to the FLAT position.
The MUTING key is set on. (When this key is on,
Press the MUTING key on the remote-control
transmitter to set the key off
the indicator on the VOLUME control is blinking.)
The + and - wires are connected in reversed at
Connect the speaker wires in the correct phase (+
l
and --).
the amplifier or speakers.
There is a humming sound when playing
The input wires are not connected securely.
Connect the input wires securely.
records:
The turntable's ground wire is not connected.
.
Connect the ground wire.
There is a howling sound when playing
The turntable and the speakers are too close.
Change the location of the turntable or the
records at high volume.
together, or the turntable is not located on a firm -
speakers.
surface.
The PURE DIRECT switch is ON.
There is no sound from one speaker.
Sound level is low.
There is a lack of bass, and no ambience.
The PURE DIRECT switch must be switched OFF
to use the controls.
Using the BASS, TREBLE,
BALANCE,
LOUDNESS controls, SUBSONIC FILTER,
MODE switches and the unit connected to the
ΡΗΕ OUT/MAIN IN terminals does not affect
the tone.
Switching this unit OFF and then ON will reset the
speaker protection circuit.
Use speakers within the rated impedance range.
Using outside the rated impedance range at high
power for an extended period has activated the
speaker protection circuit.
The sound suddenly stops.
There is a malfunction in the amplifier.
Consult your Yamaha dealer.
Direct sunlight or lighting (of an inverter type of .
Change position of the main unit.
flourescent lamp etc.) is striking the remote
contro! sensor of the main unit.
The remote-control transmitter does not work.