Sennheiser evolution wireless serie ew500 - Manual (Page 85)

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LOCK
Loc Activating/deactivating the lock-mode function
You can lock the ̆ / ̄ buttons and the ON/OFF button to prevent accidental
programming or switching off during operation.
Activating the lock-mode function
Ǡ Select the “LOCK” menu by pressing the SET button. The current setting
is indicated on the display.
Ǡ Press the ̆ button to activate the lock-mode function. “LOC ON” starts
flashing on the display.
Ǡ Press the SET button to return to the top menu level.
Note:
If you press the ̆ / ̄ buttons or the ON/OFF button, “LOCK” appears
on the display and the buttons are now locked.
Deactivating the lock-mode function
Ǡ Select the “LOCK” menu by pressing the SET button. “LOC ON” appears
on the display.
Ǡ Press the ̄ button to deactivate the lock-mode function. “LOC OFF”
begins to flash on the display.
Ǡ Press the SET button to return to the top menu level. The display
switches back to the standard display and the buttons can now be
operated as usual.