Key Lock
This feature prevents accidental changing of the unit settings. The Key
Lock function will temporarily disable the Channel Up/Down, CALL,
COMPASS, and MENU button.
To activate Key Lock:
1. Press and hold the MENU button for 2 seconds. The key Lock icon ( )
will appear on the LCD screen and the Key Lock will be activated.
2. To unlock the Key Lock function, press and hold the MENU button
for 2 seconds. The ( ) icon will disappear and normal operation will
resume.
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Key Lock
Key Lock
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HUM1200 2/11/04 8:27 PM Page 30
