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Page Title:
Figure 2-47. Intercom always keyed Flowchart |
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|  TM-11-5830-263-20&P
START
SUBSTITUTE ORIGINAL BAILOUT
CABLE WITH A KNOWN GOOD ONE.
NO
IS
REPLACE DEFECTIVE BAILOUT
FAULT STILL
CABLE.
PRESENT?
YES
END
SUBSTITUTE ORIGINAL HEADSET
WITH A KNOWN GOOD ONE.
NO
IS
TROUBLESHOOT HEADSET.
FAULT STILL
SEE FIGURE 2-51.
PRESENT?
YES
DISCONNECT VEHICLE PTT CABLE
(IF APPLICABLE).
END
NO
IS
FAULT STILL
REPLACE DEFECTIVE VEHICLE PTT
PRESENT?
CABLE.
YES
ENSURE HEADSET IS CONNECTED
END
TO FFCS DIRECTLY (IF ALARM
CABLE IS INVOLVED)
NO
IS
CHECK CONTINUITY OF ALARM
FAULT STILL
CABLE FOR SHORTS AND OPENS
PRESENT?
YES
REPLACE DEFECTIVE ALARM
NO
IS ALARM
CABLE.
CABLE OK
REPLACE DEFECTIVE FFCS.
YES
END
PROBLEM IS IN VEHICLE WIRING
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