Furuno FM-3000 - Microphone Lock Function; Display Backlighting

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6.Other Functions
6.2 Microphone Lock Function
The Microphone lock function electrically locks the [
YY
]
/
[
ZZ
]
and [
16/9
] keys on the supplied microphone. This prevents
accidental channel changes and accidental function access.
➥ While pushing [
16/9
] on supplied microphone, turn power
ON to toggle the Lock function ON or OFF.
6.3 Display Backlighting
The function display and keys can be backlit for better visibil-
ity under low light conditions.
➥ While pushing [
HI/LO
], rotate [
CHANNEL
] to adjust the
brightness of the LCD and key backlight.
• The backlight level is adjustable in 7 levels.
[Y]/[Z]
[16/9]