Kenwood TH-255A manual 67

Press [] (1s).

•The light remains ON until you press [] (1s) again.

Lock Function

The lock function disables most of the keys to prevent you from accidentally activating a function.

1Press [F], [MENU] to turn the Lock function ON.

•The “” icon appears when the Lock function is ON.

•The following keys cannot be locked:

[F], [ ] (POWER), [PTT], [ ], [MON], Volume control and microphone PF key.

2Press [F], [MENU] to unlock the keys.

Note: You cannot perform the Microprocessor Reset {page 71} while the Lock function is ON.

Selector Unlock

While the Lock function is ON, you sometimes may want to rotate the Selector (or press [UP]/ [DOWN]) to change the frequency. In this case, turn the Selector unlock function ON.

1Enter Menu mode and access Menu No. 18 (SEL).

2Press [MENU], then rotate the Selector (or press [UP]/ [DOWN]) to select “ON”.

3Press [MENU] to store the setting.

4 Press any key other than [MON], [UP]/ [DOWN] or [ ] to exit Menu mode.

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