Lectrosonics SRc User manual
Quick
Start
Guide
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This guide is intended to assist
with initial setup and operation of
your Lectrosonics product.
For a detailed user manual, down-
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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
1
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.
OK
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.
OK
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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