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STRATA DK FAULT FINDING
SECTION 200-096-500
FEBRUARY 1991
CHART NO. 12
DOOR PHONE FAULTS (cont.)
Replace the
door phone.
Program system
for DP output.
Verify HDCB
strapping and wiring
(correct if necessary).
Service Center
for assistance.
From
Replace
1 the HDCB. [ @
Tag defective unit(s)
and return for repair.
CL,
END
-23-