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40540 - 40542 - 40540.D - 40547
Restoring default values of push buttons
1. In the case of a handset entryphone, raise the handset and bring it to your ear to listen to the sound feedback emitted
by the handset during the programming phase.
2. Press the push button you want to reprogramme to its default value and hold it down for at least 6 s.
3. After 6 seconds the entryphone emits a “beep” (high tone).
4. Release the push button you want to reprogramme, then press it again to return it to its default setting.
1 4
4
beep
2 3
> 6 s
> 6s
beep
2 3
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