Listen Technologies LA-140, Design Manual

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LA-140
LT-82
Design Guide Design Guide
LR-42/44
7
Checking Battery Level and Current Channel
7A
Checking Battery Level
LR-42/44 Operating Instructions
Adjust Volume Level
Use the control dial on the top of the unit to adjust the volume to a comfortable level.
6
1
2 3
4
1 Tapping the power button will display the battery level on the channel indicator LEDs.
2
The battery level will then display on the channel indicator LEDs for two seconds (unless battery
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3
When a battery check is initiated all four LEDs will turn on. Then the LEDs will ramp down to the
current battery level. If all four LEDs turn on and remain on the batteries are full.
1
2 3
4 1
2 2 2
1
2 3
1
2 3
4
1
2 3
4
1
2 3
4
1
2 3
4
1
2 3
4
2
LED on
LED off