freemate DA-275, Руководство пользователя

Страница: 10 / 20

[09]
3. HOW TO TEST BEFORE USE
Stage 1. Checking for
telephone use
Wearing the headset, Lift the handset
from its cradle, position it off-hook and
listen.
1.Compatibility setting between
telephone and amplifier
If you can t hear dial tone at factory
setting, adjust the compatibility
switch between telephone and
amplifier as follows
1) Remove the Security cover which
is located on the side of amplifier.
2) Slide the compatibility switch by
clicks until you can hear a clear
dial tone.
3) If amplifier does not work with the
above compatibility,Your handset
may be a dynamic microphone.
Place Dip switch No. 2 to OFF
and adjust compatibility switch
again until you hear a dialtone as
the same manner.