Lectrosonics SMDa - Manual (Page 8)

SMDa Series
Lock/Unlock Screen
Simultaneously pressing and
holding both the Up and
Down arrow buttons during
normal operation starts the
Lock timer. The timer starts
at three and counts down to
zero. When the timer
reaches zero, the transmit­
ter’s controls are locked.
The LCD will display the locked condition as long as the
arrow buttons are held, then revert back to the previous
screen when either button is released.
With the controls locked, the AUDIO and FREQ buttons
can still be used to display current settings. Any attempt
to change a setting by pressing either the Up or Down
arrow button will result in an on-screen “Loc” reminder
that the controls are locked. Remove the batteries to
unlock the control panel.
Important: Once the transmitter is locked, it
cannot be unlocked or powered off using the
buttons.The only ways to unlock a locked
transmitter are to remove the battery or unlock it
via the RM remote control.
Remote Control Operation
SMDa Series transmitters may
be configured to respond to
signals from the RM remote
control unit or to ignore them.
This setting is accessed by
holding down the Down arrow
button while powering the
Remote Control Screens
transmitter on. Use the arrow
keys to toggle between “rc on” (remote control on) and
“rc oFF” (remote control off). The default setting is “rc
on.”
If a remote control signal is detected but the transmitter
is set to “rc oFF”, the message “rc oFF” will be dis­
played briefly on the transmitter’s LCD, to confirm that a
valid signal was received, but that the transmitter is not
configured to respond to it.
Functions available from the remote control are:
• Audio Level
• Frequency
• Lock/Unlock Buttons
• Sleep/Wake (power saving mode)
In sleep mode, the SMDa uses 20% of the normal
amount of current. Sleep mode can only be invoked with
the remote control, and can only be revoked with the
remote control or by removing the battery. When in sleep
mode, the PWR LED blinks green every few seconds to
indicate that the SM is asleep and not turned off.
Note: The RM is not included with SM Series
transmitters. “Dweedle tones” in .wav and mp3 files
can also be downloaded from the web site at:
http://www.lectrosonics.com/hybrid/rm/rm.htm
Battery Installation
The SMDa is powered by two AA batteries. We recom­
mend using lithium batteries for longest life or NiMH
rechargeable batteries for economy.
Note: Standard zinc-carbon batteries marked
“heavy-duty” or “long-lasting” are not adequate.
The battery status circuitry is designed for the voltage
drop over the life of lithium batteries.
To install new batteries:
1. Turn the Battery Cover Plate Thumbscrew coun­
terclockwise, open the battery compartment and
remove any old batteries.
2. Insert the new battery (or batteries) into the hous­
ing. The positive (+) battery terminal goes into the
transmitter first.
3. Replace the Battery Cover Plate and tighten the
Battery Cover Plate Thumbscrew.
Kevlar covered vent
Two battery
compartments
(SMDa)
LECTROSONICS, INC. 8