Pioneer VMS-550 - Manual (Page 15)

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• If the transmitter’s power is turned OFF or enters STANDBY mode while the
speaker’s power is still ON, the speaker may emit a rather loud burst of noise.
To avoid such noise, always turn the speaker power OFF after use.
• If you are not going to use the system for a long time, unplug the AC power
adaptor from outlet. When removing the plug, grip the AC power adaptor. Do
not pull on the cord.
When the VOICE BOOST switch (on the top of the speakers) is pressed, audio
frequencies in the range of the human voice are emphasized, thus providing
compensation to make the signals easier to hear. When the VOICE BOOST
function is enabled, the LED above the VOICE BOOST switch lights green. If the
VOICE BOOST switch is pressed again, the VOICE BOOST function will be
canceled.
The transmitter has two frequency channels. Select the channel that provides the
best reception for the conditions in your area.
1 First, turn OFF speaker power.
2 Slide the transmission frequency select switch on the back side of the
transmitter to choose either CH1 or CH2; in this way the transmission
frequency will be changed.
3 Turn speaker power ON again. Sound will be produced in sync to the
transmitter’s frequency.
• If the transmitter’s channel is changed without first turning off the speaker
power, immediately press the speaker’s TUNED switch. Sound will be
produced from the speaker in synch with the transmitter’s frequency.
• The transmission distance is affected by the surrounding environment. If you
hear noise or intermittent sound, either move the speaker to a location with
better reception, or change the transmission channel.
If the LED above the TUNED switch is not illuminated (no sound is produced), or
if a burst of noise is heard from the speaker, it generally means the signal from
the transmitter has not been received correctly by the speaker. In this event,
press the TUNED switch in order to sync the speaker to the transmitter’s
frequency.
3-2 Voice boost
3-3 Changing the transmission frequency
3-4 TUNED switch
Note
Note