Telex BP-2000 사용자 설명서
APPENDIX A
OPTIONAL FOOTBALL MODIFICATIONS
GENERAL DESCRIPTION
In Audiocom® Intercom Systems, the Mic-Kill feature is used
to turn off any activated microphones on a selected channel.
The Mic-Kill feature is activated when the beltpack receives a
24 kHz signal from the channel. In some applications the
Mic-Kill and Call signal features are not desired and need to
be disabled.
to turn off any activated microphones on a selected channel.
The Mic-Kill feature is activated when the beltpack receives a
24 kHz signal from the channel. In some applications the
Mic-Kill and Call signal features are not desired and need to
be disabled.
ELIMINATING MIC-KILL AND CALL SIGNAL
CAUTION
TO PREVENT DAMAGE TO THE EQUIPMENT, THESE
MODIFICATIONS SHOULD ONLY BE MADE BY
QUALIFIED TECHNICIANS.
MODIFICATIONS SHOULD ONLY BE MADE BY
QUALIFIED TECHNICIANS.
If desired, the Mic-Kill and Call signal features can be disabled
in the BP-2000/BP-1000 by removing a surface-mounted
capacitor from the printed circuit board. Perform the following:
in the BP-2000/BP-1000 by removing a surface-mounted
capacitor from the printed circuit board. Perform the following:
1.
Before making changes to the printed circuit board,
disconnect all power and line connections from the
beltpack.
disconnect all power and line connections from the
beltpack.
2.
Refer to Figure 3 and locate C38 on the underside of the
printed circuit board.
printed circuit board.
3.
Remove capacitor C38 from the printed circuit board.
RESTORING MIC-KILL AND CALL SIGNAL
To restore the Mic-Kill and Call signal features, replace C38
with Telex® part number 102879-218, 1500 pF, 50V
capacitor.
with Telex® part number 102879-218, 1500 pF, 50V
capacitor.
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