Lectrosonics MM400c User Manual download pdf (Page 11)

Watertight Miniature UHF Belt-Pack Transmitter

Rio Rancho, NM

Modulation LEDs

POWER LED

Power ON/OFF

Switch

thetransmitterOff.

6) Change the Frequency Select Switch settings to

one of the following positions:

 • 100Seriesmode: 1,1

•200Seriesmode: 2,2

•Mode3:  3,3

•400Seriesmode: 4,4

•IFBSeriesmode: 5,5

7) Power up the unit brieﬂy – just long enough to

watch the LED’s glow and then turn the transmitter

Off.

8) Set the Frequency Select Switches to 0,0.

9) Turn on the transmitter and observe the Modulation

LEDs to verify the compatibility mode for the unit

has changed.

NOTE:Eachtimethetransmitteristurnedon,the

Modulation LEDs will conﬁrm the current operating

mode with the number of blinks listed in Step 2.

The mode setting will not change until reset with

the procedure listed above.

Adjusting Transmitter Frequency

Ifyouareexperiencinginterferencefromanothersignal

on your operating frequency, you may need to change

the operating frequency of your system. This is done

through two Frequency Select Switches located under

the Frequency Switch Cover Plate on the bottom of the

transmitter case.

Frequency Select Switches

1.6M 100K

The left switch is for coarse frequency adjustment, and

itincrementstheoperatingfrequencyin1.6MHzsteps.

The right switch is for ﬁne frequency adjustment and it

incrementstheoperatingfrequencyin100kHzsteps.

If you are using a 200 Series or 400 Series receiver,

it is suggested to use the built in frequency spectrum

scanning function on the associated receiver to ﬁnd a

clear channel. Turn the transmitter off and leave the

receiver turned on. Scan across the frequency band to

ﬁnd a frequency where little or no RF activity is dis-

played. Set both the transmitter and the receiver to this

new frequency. Turn on the transmitter to ensure the

RF signal is strongly indicated at the receiver.

Selecting the Compatibility Mode

All Digital Hybrid receivers are capable of working with

Lectrosonics MM400C transmitter, and by setting the

proper Compatibility Mode, the unit will also work with

200 Series and 100 Series analog receivers, plus some

otherbrands(contactthefactoryfordetails).Inorder

to operate properly, the transmitter must be set to the

operating mode of the matching receiver, which is easily

done using a small screwdriver and a battery.

The following procedure assumes that the Power

ON/OFFswitchisconguredforNormalMode.Ifit

has been conﬁgured for Audio Mute Mode, see Power

Switch Function Selection to change the conﬁguration

to Normal Mode.

Note: The unit comes from the factory in the Digital

Hybrid mode.

1) Set the audio controls for the corresponding re-

ceiver to minimum.

2) Install a good battery in the transmitter. Move the

PowerSwitchtoONandobservetheModulation

LEDs to determine the current Compatibility Mode.

The –20 and –10 LEDs will blink simultaneously:

•Oncefor100Seriesmode

•Twotimesfor200Seriesmode

•Threetimesfor“Other”receivers

• Fourtimesfor400Seriesmode

•FivetimesforIFBSeriesmode

3) MovethePowerSwitchtotheOFFposition.

4) Loosen the Frequency Switch Cover Plate

Retaining Screen and rotate the cover to

exposetheFrequencySelectSwitches.

Withasmallscrewdriver(included

withyourunit),settheFrequency

Select Switches to CC. (for

Change, Change).

5) Power up the unit brieﬂy – just

long enough to watch the

LED’s glow and then turn

Operating Instructions

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

Comments to this Manuals

No comments

Lectrosonics MM400c User Manual Page 11

Comments to this Manuals

Related products and manuals for Accessories communication Lectrosonics MM400c