Lectrosonics SRc User manual

Quick

Start

Guide

Fill in for your records:

Serial Number:

Purchase Date:

This guide is intended to assist

with initial setup and operation of

your Lectrosonics product.

For a detailed user manual, down-

load the most current

version at:

www.lectrosonics.com/manuals

Camera Slot Dual UHF Receiver

Digital Hybrid Wireless®Technology

U.S. Patent 7,225,135

SRC

SRC5P

14 November 2018

LECTROSONICS, INC.2

Digital Hybrid Wireless®

The Lectrosonics Digital Hybrid Wireless®uses innovative technology to

combine the advantages of digital audio with the advantages of analog

RF transmission. The result delivers the superior sound quality of a digital

system and the excellent range of an analog system.

A proprietary algorithm encodes the digital audio information into an ana-

log format which can be transmitted in a robust manner over an analog FM

wireless link. The receiver employs state-of-the-art ﬁlters, RF ampliﬁers,

mixers and detector to capture the encoded signal and a DSP recovers the

original digital audio.

This digital/analog hybrid technique has some very beneﬁcial properties.

Because the information being transmitted is digitally encoded, immunity

to noise is much higher than what a compandor can offer. Because the

encoded audio is sent in analog format, spectral and power efﬁciency and

operating range are not compromised.

Under weak RF conditions, the received signal degrades gracefully, like

an analog system, delivering as much usable audio as possible at maxi-

mum range. Since the audio is free of compandor artifacts, pumping and

breathing problems are also greatly reduced.

www.lectrosonics.com 3

Quick Start Summary

The following checklist includes the minimum required settings to start us-

ing the receiver.

• Install either a battery sled or camera slot adapter kit (see pages 5-6).

• Connect power to the receiver (see page 6-7).

• Set the DIVMODE for single or dual channel operation (see pages 8-9).

• Set the COMPAT (compatibility) mode for the transmitters to be used

(see pages 8-9).

• Find clear operating frequencies for one or both receivers (see page

10).

• Set transmitters on the matching frequencies (see transmitter manual).

• Verify transmitters are set to the same compatibility mode as the re-

ceiver (see transmitter manual).

• Adjust transmitter input gain to match voice level and mic position (see

transmitter manual).

• Adjust receiver output level as needed for the camera or mixer input

level desired (see pages 8-9).

IMPORTANT:

FREQ.

WARNING

Performance will be degraded if

Receiver 2 is set 4.2 to 4.8 MHz higher

than Receiver 1. The LCD will also flash

this message periodically.

LECTROSONICS, INC.4

Audio Outputs

In addition to the audio outputs on the rear panel, the front panel of the

receiver provides a second set of outputs through a 5-pin connector. This

allows both audio channels to be connected through external cables for

cameras with only one audio channel enabled in the slot.

The TA5M connector provides two balanced outputs with the following

pinouts:

Pin 1 Pin 2 Pin 3 Pin 4 Pin 5

Shields CH1 + CH1 – CH2 + CH2 –

LCD Screen

A backlit, graphics-type LCD is used to set up and monitor the receiver.

The Main Window shown above is used during normal operation, to dis-

play RF and audio levels, transmitter battery status, pilot tone status and

diversity activity for both receivers.

MENU/SEL Button

This button is used to select menu items and enter setup screens during

setup.

IR (Infrared) Sync

An IR Sync Port is used for quick setup with transmitters that offer this

feature. Settings for frequency, step size, compatibility mode and talk back

are transferred from receiver to transmitter via the IR ports.

NOTE: Selected compatibility mode and talk back will only sync if

they are available options on the transmitter you are syncing with.

Front Panel Controls and Functions

DOWN

Button

MENU/SELECT

Button

POWER/BACK

Button

UP Button

Receiver 1 Receiver 2

Secondary

Audio

Output

IR Sync Port

www.lectrosonics.com 5

PWR/BACK Button

Press the PWR/BACK switch to turn the power on. Press and hold it until

the display goes blank to turn power off. It also functions as a “back” but-

ton while navigating the various menus and setup screens to return to the

previous screen or menu item.

The ﬁrmware “remembers” whether the receiver was turned on or off after

power is disconnected, and it returns to that state when power is restored.

This allows the receiver to power up and down as the camera or external

supply is turned on and off.

Press the PWR/BACK button from the Main Window to brieﬂy display

the external power voltage.

UP/DOWN Arrow Buttons

The UP and DOWN arrow buttons are used to select various options and

adjust values in the setup screens, and provide secondary functions such

as locking out the panel to guard against accidental changes.

Installing Rear Panel Adapters

Installation of the rear panel output/power adapters is the same for all

models.

Panels are held in

place by two Phil-

lips head screws

on the sides of the

housing.

Connections

between the panel

and main circuit

board are made via

miniature mating

connectors.

Align the mating

connectors and

slide the panel

straight into the

housing until the

screw holes align

with the housing.

LECTROSONICS, INC.6

Battery Adapters

Battery sled adapters conﬁgure the receiver for standalone use or to pro-

vide battery backup power. Several options are available:

• SRBATTSLEDTOP

• SRBATTSLEDBOTTOM

• SR9VBP (inserts into the SLED adapters)

SRBATTSLEDTOP

SRBATTSLEDBOTTOM

The battery sled adapters accept L and M type video camera rechargeable

batteries and the optional SR9VBP 9 volt battery case.

L or M type video

camera batteries

mount directly onto

the battery sled

SR9VBP

battery

case for

two 9 volt

batteries

The battery sled adapters do not include charging circuitry. Batteries must

be charged with their respective chargers. The adapters include an inte-

gral circuit that automatically selects between the battery and the external

source, whichever delivers the highest voltage.

www.lectrosonics.com 7

External Power Supply

DCR12/A5U

AC power supply with

interchangeable blades/posts for use

in Europe, UK, Australia and USA;

100-240 V, 50/60 Hz input; 12 VDC

(regulated), 0.3 A max. output, 6.0 W.

Sold separately.

Main Window (LCD)

RF Levels Audio Level

Transmitter

Battery Level

Pilot Tone

Indicator

Receiver 1 Receiver 2 Diversity

Activity

The Main Window displays information concerning the condition of the Pi-

lot Tone, antenna phase, RF and audio signal levels and battery conditions

for both the receiver and the associated transmitter.

NOTE: When the RATIO DIVERSITY mode is selected, both

receivers are combined to pick up the same transmitter, so the Main

Window will display a single audio channel.

Receiver 1

RF Level

Receiver 2

RF Level

Audio

Level

Transmitter

Battery Level

Pilot Tone

Indicator

Pressing the MENU/SEL button accesses the menus and screens for set-

ting up the receiver and searching for clear frequency channels.

LECTROSONICS, INC.8

NOTE: Press the

BACK button from

the Main Window

to brieﬂy display

the external power

supply voltage.

Navigating the LCD

Note: Press the BACK button from the Main Window to brieﬂy

display the external power supply voltage.

Accessing Block 606

NOTE: Block 606 is ONLY AVAILABLE in Bands B1 and C1.

Available from any setup screen that displays the two receiver selection

options next to each other, press and hold the DOWN arrow and simulta-

neously press PWR/BACK. Using the DOWN arrow, toggle between B1/C1

and Block 606.

www.lectrosonics.com 9

NOTE: This setting does not appear

when the MIXMODE is set to DIRECT

NOTE: To reset the timer, set the TXBAT mode to

anything other than 9VT or AAT, then back to the

COMPAT

Compatibility modes adjust the FM deviation and audio processing

(companding) to match other Lectrosonics models and some models from

other manufacturers.

LECTROSONICS, INC.10

Using SmartTuneTM

SmartTune is the easiest and fastest way to scan the local RF spectrum

and ﬁnd clear operating frequencies.

SETUP

SMARTUNE

Navigate to the

SMARTUNE screen

and press MENU/

SEL.

SMART

TUNE

Use the UP and

DOWN arrows to

select receiver 1

or 2, and press

MENU/SEL.

TX 1

BAND B1

The scan can cover all three blocks in the band, or only one

of the three. Use the UP and DOWN arrows to select the

tuning range to be scanned:

B1 - the entire Band B1

21 - block 21 only

22 - block 22 only

23 - block 23 including TV37

23N - block 23 bypassing TV37*

B1N - Band B1 bypassing TV37*

*NOTE: 23N and B1N (“N” refers to North America) scans skip

past TV Channel 37 (608 to 614 MHz) since it is reserved for radio

astronomy in North America.

SYNC 1

After the scanning is complete, the

newly discovered frequency will be set

automatically. The LCD will then prompt

to SYNC the frequency to the matching

transmitter via the IR port (DOWN

ARROW), or to continue by pressing OK

(MENU/SEL).

TUNE RX2

NOW? YES

After leaving the SYNC screen, the

LCD will ask about setting up the other

receiver. Use the UP and DOWN arrows

to select YES to tune the other receiver,

then press MENU/SEL to continue.

IS TX1

ON? YES

Turn on the transmitter that matches the

rst receiver that was tuned. Use the

UP and DOWN arrows to select YES and

press MENU/SEL.

SYNC 2

After the scanning is complete, the

newly discovered frequency will be set

automatically. The LCD will then prompt

to SYNC the frequency to the matching

transmitter via the IR port (DOWN

ARROW), or to continue by pressing OK

(MENU/SEL).

Press the BACK button several times

to return to the Main Screen and verify

that both transmitters show a strong RF

signal strength and that the Pilot Tone

icons are NOT blinking.

Pilot Tone icons (P)

RF signal strength

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