Kenwood TH-78A Instruction Manual

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Page 402 MonitorEven if the squelch or CTCSS, DTSS, or PAGING is ON, you can monitor the channel by pressing the MONI key.3 Beep OffThe transceiver produces beeps when you push the front panel keys. If you want to disable this function, press andhold the 6 key and press the POWER switch.4 LampIf 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 LockPress the F key, then press the M key.The LOCK indicator (a key) will appear on the display, and all keys except LAMP, MONI, E.CHG, F+M, and PTTare locked.Press the F key then press the M key again to cancel the key Lock function.6 Volume adjustment when you use an earphoneCAUTIONIf you use an earphone, you may feel that the volume istoo high even if the volume level is set to minimum. Werecommend that before connecting the earphone, youset the volume level to the minimum and perform thefollowing operation to protect your ears.1) Press and hold the 4 key and turn the power switch on.This operation reduces the volume below the original minimum volume level.2) Minimize the volume levels for both bands.