6
ENGLISH
Guided Tour - CT4L / CT4G Beltpack Transmitter
1: Mute on-off switch - When set to the “Off”
position, audio signal is transmitted. When
set to the “On” position, the audio signal is
muted. The advanced circuitry in the
Concert IV system ensures that no “pop” or
“thud” will be heard during muting. Note that
turning this on does
not turn off the CT4L /
CT4G power—it is simply a way to temporarily
mute the transmission of audio signal. If you
don’t plan on using the CT4L / CT4G for
extended periods, turn off its power by using
the power on-off switch (see #3 below).
2: Battery LED - This LED is an indicator of battery strength. When the CT4L / CT4G is first powered on, this
LED will light for about two-tenths of a second (if the battery is sufficiently strong), and will then go off. When
battery voltage is low, this LED lights steadily, indicating that the battery needs to be replaced.
3: Power on-off switch - Use this to turn the CT4L / CT4G on or off (to conserve battery power, be sure to leave
it off when not in use). WARNING: Be sure to mute the audio signal at your external mixer or amplifier before
turning the CT4L / CT4G power on or off, or an audible pop may result.
4: Input connector - The input device is connected here. The CT4L is supplied with either a lavalier or headset
microphone (connected via a Switchcraft mini-XLR plug, as shown in the illustration above), while the CT4G is
supplied with a permanently connected 1/4" plug cable.
5: Battery door - Opening the CT4L / CT4G bat-
tery door must be done with care. See the “Setting
Up and Using the Concert IV System” section on
page 6 in this manual for more information.
6: Battery holder - Insert a standard 9-volt alkaline
battery here, being sure to observe the plus and
minus polarity markings shown. We recommend
the Duracell MN 1604 type battery. Although
rechargeable Ni-Cad batteries can be used, they
do not supply adequate current for more than four
hours.
WARNING: Do not insert the battery
backwards; doing so can cause severe damage to
the CT4L / CT4G and will void your warranty.
7: Plastic screwdriver - Specially designed for use
in adjusting the CT4L / CT4G Level control (see #8
below) and/or receiver Squelch control (see the
“Guided Tour: CR4,” “Guided Tour: CRND” and
“Setting Up and Using the Concert IV System”
sections on pages 2, 3 and 6 in this manual.
8: Audio Input Level control (trimpot) - This input
sensitivity control has been factory preset to provide
optimum level for the particular lavalier or headset
model being used (in the case of the CT4G, it is preset
for optimum instrument level) and so we recommend
that this not be adjusted manually. If necessary, how-
ever, you can use the supplied plastic screwdriver to
raise or lower the CT4L / CT4G input level. See the
“Setting Up and Using the Concert IV System” section
on page 6 in this manual for more information.
Technologies Corp.
New York U.S.A.
