Lectrosonics LM Manuale Utente Scaricare il pdf (Pagina 6)

LM/IM

Controls and Functions

Mic Input Jack

The 5-pin (Switchcraft TA5F compatible) input accom-

modates virtually every lavaliere, hand-held or shotgun

microphone available, and most musical instrument

signals. Line level signals can also be accommodated.

(See 5-Pin Input Jack Wiring.)

Power ON/OFF Switch

The Power ON/OFF switch turns the transmitter on and

off. A pilot tone muting system prevents “thumps” or

transients from occurring at the reciever even if the

transmitter is abruptly switched on or off.

Power LED

The Power LED glows green when the transmitter is

operating and the battery is good. It turns red when the

battery voltage drops to 6.1 VDC and starts blinking red

when the voltage drops to 5.6 VDC. When using a

recommended lithium or alkaline battery, there will be

about 30 minutes of operating time remaining when the

Power LED first begins blinking red.

Note: A weak battery will sometimes cause the

Power LED glow green, but it will soon discharge

to the point where the Power LED will glow red or

go out completely. If in doubt, replace the battery

with a known new battery. If the Power LED fails

to glow when the transmitter is turned on, replace

the battery.

NiMH batteries give little or no warning when they are

depleted. If you wish to use NiMH batteries in the

transmitter, you will need to manually keep track of the

operating time. Start with a fully charged battery, then

measure the time it takes for the Power LED to go out

completely. A number of Lectrosonics receivers incor-

porate a Battery Timer function which tracks the amount

of time the transmitter signal is detected (See your

receiver manual to determine if this function is avail-

able.) By using the receiver’s battery timer and replac-

ing the transmitter battery before the premeasured time

is up, users can minimize potential loss of audio when

NiMH batteries are used.

Frequency Select Switches

Two 16-position rotary Frequency Select Switches,

accessed through the left side panel, are used to adjust

the transmitter’s operating frequency. These switches

are labeled 1.6M and 100K. The 1.6M switch is used

for coarse frequency adjustments and the 100K is used

for fine frequency adjustment.

Modulation LEDs

The Modulation LEDs provide a visual indication of the

input audio signal level from the microphone or musical

isntrument. These two bicolor LEDs can glow either red

or green to indicate modulation levels.

(LM Shown for illustrative purposes)

Belt Cip

Mic Input

Jack

AUDIO LEVEL

control

Modulation

LEDs

Power LED

Power

ON/OFF

Antenna

Frequency Select

Belt Cip

Switches

Attachment Holes

Battery Compartment Door

The Modulation LEDs are also used to indicate the

Compatibility Mode when the transmitter is initially

turned on. The Modulation LEDs will blink simulta-

neously:

• Once for 100 Series mode

• Two times for 200 Series mode

• Three times for mode 3

• Four times for Digital Hybrid Wireless

™

or 400 Series mode

• Five times for IFB mode

Audio Level

The AUDIO LEVEL control is used to set the level of the

transmitter’s input for the proper modulation.

Antenna

The flexible, insulated galvanized steel cable antenna

supplied with the transmitter is cut to 1/4 wavelength of

the center of the frequency block (the frequency range)

of the transmitter.

Belt Clip

The belt clip may be removed for special applications by

pulling the ends out of the holes in the sides of the

case. An optional hinged belt clip (P/N BCHINGED) is

also available. Contact a Lectrosonics sales represen-

tative, or visit our web site (www.lectrosonics.com) for

more details.

LECTROSONICS, INC. 6

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Lectrosonics LM Manuale Utente Pagina 6

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