Brother WD-200 SERIES User Manual page 12

 LED indications
lit
a Display LED (green)
State
(Slowly) Operating
(Quickly) No input
b Key Lock LED (orange)
State
c Internal battery LED (orange)
State
(Slowly)
(Quickly)
12
flashing off
Name
Display ON
Power OFF
Name
Key Lock ON
Key Lock
OFF
Name
Battery level
high
Battery level
medium
Battery level
low
No battery
Explanation
The AiRScouter receives
video, which appears on the
head display, from an external
device.
The control box is operating.
The AiRScouter receives no
video signal from an external
device.
The AiRScouter is turned off.
To turn it on, press the power
button.
Explanation
Button operation on the
control box is locked.
Button operation on the
control box is unlocked.
Explanation
The charge level of the
internal battery is full.
The charge level of the
internal battery is close to
half-full.
The charge level of the
internal battery is low.
The charge level of the internal
battery is close to zero.