VC-BD
Issue 4 May 2002
10-1973 555-233-123
System Technician-Demanded Tests: Descriptions
and Error Code
!
CAUTION:
If the TN788 Voice Conditioner Circuit Pack (VC-BD) is not Vintage 2 or
later, it must be replaced.
Note:
a. Refer to the repair procedure described in the XXX-BD (Common Port
Circuit Pack) maintenance documentation for a description of this test.
Control Channel Loop Around Test (#52)
Refer to the repair procedure described in the XXX-BD (Common Port Circuit
Pack) maintenance documentation as Control Channel Loop Around Test (#52).
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1 D = Destructive; ND = Nondestructive
Control Channel Loop-Around Test (#52) (a) X X ND
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