Kenwood TH78E - Manual (Page 47)

2 Monitor
Even if the squelch or CTCSS, DTSS, or PAGING is
ON, you can monitor the channel by pressing the
MONI key.
3 BeepOff
The transceiver produces beeps when you push the
front panel keys. If you want to disable this
function, press and hold the 6 key and press the
POWER switch.
4 Lamp
If you press the LAMP key, the LCD illumination
lamp lights to help you operate your transceiver at
night.
You can use this lamp at any time.
1 Press the F key, then press the LAMP key.
2 To cancel, press the F key, then press the LAMP
key again.
5 Key Lock
Press the F key then press the M key.
The LOCK indicator will appear on the display, and
all keys except LAMP, MONI, E.CHG, F+ M and
PlT, are locked.
Press the F key then press the M key again to
cancel the key Lock function.
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