Listen Technologies LA-140, Design Manual

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LA-140
LT-82
Design GuideDesign Guide
LR-42/44
LR-42/44 Operating Instructions
4
LED Sleep Mode
The receiver will shut off the channel indicator LEDs after a period of 10 seconds passes without any
buttons being pressed. The receiver will still produce audio and the volume can still be adjusted,
only the LEDs shut down. It will be necessary to “wake up” the receiver by tapping either the PWR or
Select button before doing many of the operating tasks described in the next sections.
5
Select Listening Channel
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5A
Press the Select button to scroll through the four channels. If the channel indicator LED
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locked on the current channel. See page 101 for channel lock information. Also, if the
unit “skips” over the desired channel it is because that channel has been locked out. See
page 102 for more information about the programmable features.
Auto-Seek Disabled (Default OFF)
5B
The unit will continuously seek for a signal until one is found and then it will stay on that
channel. If the signal is not detected for a short time period, or the user presses the SEL but-
ton, the unit will seek for another signal and will keep seeking until a signal is detected. If,
however, the unit is locked on the current channel this lock will “override” Auto-Seek and
the unit will not change channels when the signal is lost. Also, if there are channels that
have been locked out in the Channel Lock Out mode the Auto-Seek will not stop on these
channels. See page 102 for more information.
Auto-Seek Enabled
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2 3
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