Lectrosonics SRb_SRb5P - Manual (Page 18)

SRb5P and SRb Dual Receivers
LECTROSONICS, INC. 18
MIXTRIM and MIXMODE
When set to the SWITCHED (dual channel mode),
special options are available to allow the audio from the
receivers to be mixed to either one or both audio output
channels.
The
MIXMODE setting determines which audio signal
appears at which output channel:
• MIXBOTH mixes the audio and delivers the mix to
both output channels.
• MIXTO 1 mixes the audio and delivers the mix to
output channel 1.
• MIXTO 2 mixes the audio and delivers the mix to
output channel 2.
• DIRECT keeps the audio separated and delivers
receiver 1 audio to output channel 1, and receiver 2
audio to output channel 2.
The MIXTRIM setting applies attenuation up to 20dB in
1 dB steps to adjust the ratio of the two audio signals in
the mix. This adjustment takes effect only when a mix
mode is selected (it is ignored when the mix mode is
set to DIRECT).
IMPORTANT: The output level of each receiver
is adjusted with the LEVEL setup screen, which
is hardware-based, so it affects the output
level regardless of which mix mode is selected.
MIXTRIM then applies attenuation to that level
setting resulting in the final level delivered to
the output channel. It is good practice to set the
output level of both receivers to the same
value when using a mix mode.
When a MIXMODE is selected, each audio signal is au-
tomatically attenuated by 6 dB prior to the mixing. This
is done to avoid overload and potential distortion since
mixing increases the level by 6 dB. The same input gain
on the camera or mixer can generally be used regard-
less of whether or not a mix mode is being used in the
receiver.
TONE
The TONE setup screen enables an audio test tone at
the receiver output for precise level matching with other
equipment. The first screen prompts you to press the
UP or DOWN button to enable the tone at the receiver
output. Press MENU/SEL to toggle between receivers.
The first screen prompts you
to press the UP or DOWN
button to start the tone.
RECEIVER 2
TONE?
00 +05
Once the button is pressed, a 1 kHz tone is enabled,
and its level can be adjusted with additional presses on
the UP or DOWN buttons.
The level set here will be retained in the regular operat-
ing mode. It will supersede the setting made in the
LEVEL setup screen. The test tone has 1% distortion
and is intended for confirmation of output levels only.
To exit the test tone screen and stop the tone press the
BACK button.
Front Panel Shortcuts
A convenient shortcut is available from any setup
screen that displays the receiver selection option
(switching diversity, dual channel mode). Once the value
has been set on one receiver, the same value can be
copied to the other receiver with a simple button push
combination.
For example, in the LEVEL Setup screen, holding the
MENU/SEL button and pressing the UP arrow will copy
the value set on receiver 1 to receiver 2 . Pressing the
DOWN button will copy the value set on receiver 2 to
receiver 1.
+05 00 00
LEVEL LEVEL
00
Hold MENU and
press UP arrow
NOTE: It does not matter which receiver is
selected (highlighted).
Locking and Unlocking the
Front Panel Controls
The front panel controls can be LOCKED to prevent
accidental changes being made during operation and
handling.
Note: Whether locked or unlocked, the setting
persists when the unit is off and even when the
power is turned off.
From the Main Window, press and hold the UP and
DOWN arrows at the same time and observe the
display. The current state is displayed as LOCKED or
UNLOCKED, and numerals appear as a 3, 2, 1 count-
down takes place. When the countdown is complete the
state is reversed and the new state is displayed.
LCD Backlight Setup
Hold the UP arrow and turn on the power. The unit will
boot up then display the Backlight Options screen. Use
the UP and DOWN arrows to select the desired back-
light operating mode.
DOWN
DOWN
ON
BKLIGHT
30 SEC
BKLIGHT
OFF
BKLIGHT
UP
UP
DOWN
5 MIN
BKLIGHT
UP
Remains on
Dims after 30 seconds
Dims after 5 minutes
Backlight turns OFF
and Remains OFF