Lectrosonics LR175 Instruction Manual

LR175

Add-On Wireless Receiver
for Long Ranger Sound Systems

INSTRUCTION MANUAL

Fill in for your records:

Serial Number:

Purchase Date:

Rio Rancho, NM, USA
www.lectrosonics.com

LR175

Adding a Second Wireless Channel to The Long Ranger

A very popular feature of the Long Ranger is the ability
to add a second wireless channel to an existing system
in the field. The Lectrosonics Add-On Receiver system
was expressly designed for that purpose. The standard
system consists of an Add-On receiver, an M175 trans­mitter and a microphone.

The Add-On receiver is supplied with velcro attach­ing strips and is equipped with the necessary cabling
for making the connections to the Long Ranger. The
receiver is installed on the Long Ranger by performing
the following steps as shown in Figure 4:

1) The antenna cable for the Add-On is packed
together with screws, lock washers and the velcro
strips. The antenna cable is terminated with two
ring lugs. Feed the lug end of this cable through the
hole in the Long Ranger rear panel upright. Dress
the cable along the speaker as shown in Figure 4.

2) Remove and discard the two black Phillips head
screws from the bottom of the antenna strip on the
right-hand side of the speaker and from the speaker

LR175 Add-On Receiver

mounting block. Using the supplied bright screws
and lockwashers, connect the shield ring lug to
the speaker mounting block. Connect the center
conductor ring lug (with the clear insulation) to the
antenna. Refer to Figure 4 to help distinguish be­tween the wires. Tighten both screws securely.

3) The Add-On receiver is to be mounted on the Long
Ranger upright with velcro. The receiver should
be positioned, control panel up, between the horn
mounting screw and the screw which secures the
battery pack to the upright. Remove the paper
backing from one side of the velcro and affix it to
the back of the receiver. Remove the remaining
paper backing and affix the receiver to the upright.

4) Route the antenna cable through the hole in the
rear upright panel, above the battery pack so that
the black and white wires reach the speaker mount­ing block. Connect the remaining two cables to the
12V DC OUTPUT jack and the LINE input jack on
the control panel.

Long Ranger 4

Antenna

Figure 4 - Add-on Receiver Antenna Connections

2

to the Speaker

Antenna ConnectionGround Connection

Mounting Block

(Note clear insulator over wire)

LECTROSONICS, INC.

Add-On Receiver

Initial Adjustments to The Add-On Receiver System

1) Set up the Long Ranger system according to the
Initial Equipment Adjustments in the Long Ranger
manual.

2) Leave the Long Ranger power turned on. Set both
volume controls on the Long Ranger control panel
to minimum.

3) Turn the Add-On receiver power switch to “ON.”
Check to see that the power lamp comes on.

4) Plug the microphone into the transmitter that is on
the same frequency as the Add-On receiver. The
plug on the microphone is a twist-lock connector.
Make sure there is a good connection. If you are
using the head set microphone, turn the white level
control knob on the headset fully clockwise (maxi­mum).

5) Install the 9 Volt battery into the transmitter, turn the
transmitter on and make sure the red LED on the
transmitter glows brightly.

6) Check to see that the green “RF” LED on the Add­On receiver glows steadily. This verifies that the
receiver is picking up a good radio signal from the
transmitter.

7) This is the most important step in the set up proce­dure. Place the microphone in the exact position
where you will be using it. Speak at the same
voice level that you will use during actual operation.
While you speak, use the supplied screwdriver to
adjust the gain control on the transmitter side panel
(see page 7) while you observe the MODULATION
LEDs on the Add-On receiver front panel. The
green LEVEL lamp should flicker or stay lit as you
speak. The red LIMIT lamp should blink only on
louder words.

8) Adjust the AUXILIARY INPUT VOLUME control on
the Long Ranger control panel for the necessary
loudness. If the transmitter gain controls have been
correctly set on both the Longer Ranger 4 and the
Add-On system, both volume control knobs on the
Longer Ranger 4 panel will be in about the same
position for equal loudness on both systems. It
is not unusual, however, that one of the volume
controls may need to be set higher or lower than
the other one in normal use. Adjust the controls
separately for adequate sound levels for each mi­crophone.

Special Note to Dual Channel Users

If you are only using one of the two wireless systems, it is
best to use the wireless system built into the Long Rang­er and leave the Add-On receiver turned off. This will
prevent unwanted noise, hiss or static that could occur in
the unused receiver from entering the Long Ranger.

Rio Rancho, NM

If it is necessary to use the Add-On receiver by itself,
turn the WIRELESS MICROPHONE VOLUME control
knob on the Long Ranger control panel to minimum.
Then set the AUXILIARY INPUT VOLUME for the nec­essary loudness of the Add-On system.

3

Returning Units for Repair

For timely service, please follow the steps below:

A. DO NOT return equipment to the factory for repair without first contacting us by letter or by phone. We need to

know the nature of the problem, the model number and the serial number of the equipment. We also need a
phone number where you can be reached 8 A.M. to 4 P.M. (U.S. Mountain Standard Time).

B. After receiving your request, we will issue you a return authorization number (R.A.). This number will help speed

your repair through our receiving and repair departments. The return authorization number must be clearly shown
on the outside of the shipping container.

C. Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the

proper packing materials. UPS is usually the best way to ship the units. Heavy units should be “double-boxed” for
safe transport.

D. We also strongly recommend that you insure the equipment, since we cannot be responsible for loss of or dam-

age to equipment that you ship. Of course, we insure the equipment when we ship it back to you.

Mailing address: Shipping address: Telephone:
Lectrosonics, Inc. Lectrosonics, Inc. [phone]
PO Box 15900 581 Laser Rd. [phone] Toll-free
Rio Rancho, NM 87174 Rio Rancho, NM 87124 [phone] Fax
USA USA

Web: E-mail:
www.lectrosonics.com [e-mail]

October 6, 2006