Icom IC-M412 Instruction Manual - Page 17

Display backlight

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BASIC OPERATION 3 n Microphone Lock function The Microphone Lock function electrically locks the [Y] and [Z] keys on the supplied microphone. This prevents accidental channel changes and function access. ➥ While holding down [HI/LO] on the microphone, turn ON the power to toggle the Microphone Lock function ON or OFF. [Y]/[Z] [HI/LO] n Display backlight The function display and keys can be backlit for better visibil- ity under low light conditions. 3 You can also adjust the display backlight in the Set mode. (p. 46) ➥ While holding down [SCAN], push [Y] or [Z] to adjust the brightness of the LCD and key backlight. • T he backlight is adjustable in 4 levels and OFF. n AquaQuake water draining function The transceiver uses a technology to clear water away from the speaker grill: AquaQuake. AquaQuake helps drain water away from the speaker housing (water that might otherwise muffle the sound coming from the speaker). The transceiver makes a vibrating noise when this function is being used. ➥ While holding down both [Y] and [Z] on the transceiver, turn ON the power to activate the AquaQuake function. • W hile continuing to push [Y] and [Z], a low beep tone sounds to drain water, regardless of the [VOL] control setting. • W hile the AquaQuake function is activated, the transceiver never accepts any key operations. • Release [Y] and [Z] to cancel the AquaQuake function. 9

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9
3
BASIC OPERATION
3
n
Microphone Lock function
The Microphone Lock function electrically locks the
[
Y
]
and
[
Z
]
keys on the supplied microphone. This prevents acciden-
tal channel changes and function access.
➥
While holding down
[HI/LO]
on the microphone, turn ON
the power to toggle the Microphone Lock function ON or
OFF.
[HI/LO]
[
Y
]/[
Z
]
n
Display backlight
The function display and keys can be backlit for better visibil-
ity under low light conditions.
You can also adjust the display backlight in the Set mode.
(p. 46)
➥
While holding down
[SCAN]
, push
[
Y
]
or
[
Z
]
to adjust the
brightness of the LCD and key backlight.
•The backlight is adjustable in 4 levels and OFF.
n
AquaQuake water draining
function
The transceiver uses a technology to clear water away from
the speaker grill: AquaQuake. AquaQuake helps drain water
away from the speaker housing (water that might otherwise
muffle the sound coming from the speaker). The transceiver
makes a vibrating noise when this function is being used.
➥
While holding down both
[
Y
]
and
[
Z
]
on the transceiver,
turn ON the power to activate the AquaQuake function.
• While continuing to push
[
Y
]
and
[
Z
]
, a low beep tone sounds
to drain water, regardless of the
[VOL]
control setting.
• While the AquaQuake function is activated, the transceiver never
accepts any key operations.
• Release
[
Y
]
and
[
Z
]
to cancel the AquaQuake function.