7
3. To test that the microphone is connected correctly, blow lightly
into the mouthpiece. If you hear the ‘blowing sound’ in the earpiece,
your P-Amp40 is now set. If you cannot hear the ‘blowing sound’,
repeat 2 and 3 until both the earpiece and microphone are working
correctly.
Note 1
: The rotary switch is factory set in the most of common wir-
ing position so always try this
fi
rst before turning the switch.
Note 2
: The rotary switch has deliberately been made rather stiff to
avoid misoperation or accidental change of setting. We apologise if
you
fi
nd this inconvenient . But after
fi
rst set-up, the switch will not
be to turned again unless you change your phone.
Note 3
: The P-Amp40 cannot be used with one-piece telephones
which have a keypad on the handset. P-Amp40 is now ready to
use.
INSTALLATION
