Williams Sound PERSONAL PA System 500, Руководство по установке и Руководство пользователя

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If the TAPE OUT jack is already in use, a Step 6: Set the RF Power Switch.
Y-Cord can be used to connect the T20
and a second device to the same jack.
Unbalanced Audio Input Terminals:
Accepts one to three unbalanced line-level
signals, which are actively mixed. The
three inputs share a common ground
connection.
Step 3b: (If you will be using the T20 with a
microphone as a stand-alone system)
Plug the microphone into the concentric
jack (“Balanced Audio Input”) on the rear
panel of the T20. The T20 supplies
positive DC voltage to power condenser
microphones per DIN45596. (Standard
dynamic microphones may also be used.)
Make sure the input selector switch is in
the MIC position. Talking into the
microphone should cause the audio
indicator light to flash on the front panel.
If you use both the Microphone input and
the Audio Input on the T20, the signals
will be mixed.
Step 4: Set the Input Selector Switch.
If you are using the combination XLR/
phone plug input jack, make sure the
selector switch is set in the proper position
as shown in Figure 6.
Step 5: Set the Hi-Pass Filter Switch.
The High-Pass Filter switch is used to
reduce low frequencies. It is normally
used in the middle (175 Hz) position to
provide high frequency emphasis that
improves speech understanding for hard of
hearing listeners. If the program content is
primarily musical, it can be used in the left
(20 Hz) position. The right position
(725 Hz) may be used for further low
frequency reduction, or it may be used to
reduce low frequency system noise due to
pick up of ventilation system noise, etc.
In some situations, the radio signal
produced by the transmitter can enter
other types of equipment and create a hum
or buzzing sound in the sound system.
This is due to poor RF protection in the
other equipment, NOT a problem with the
transmitter.
The normal switch position is MAX
power (right).
If you encounter a hum or buzz in the
sound system when the T20 is turned on,
move the switch to the -6 dB (middle
position). If the buzz diminishes, but
persists, move the switch to the -12 dB
(left) position. If this does not solve the
problem, refer to the Troubleshooting
Guide on page 16.
However, if the amount of buzz does not
change when the RF power switch is
moved from MAX to -12 dB, the buzz is
not related to RF interference from the
T20.
The system range is decreased when
power is reduced, but usually still covers
the entire seating area.
Step 7: Use a receiver to test the system and set
the input level control.
Williams Sound
®
Helping People Hear
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