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 TM 9-2320-366-20-2
TM
e99. RADIO DOES NOT OPERATE (CONT)
e99.
KNOWN INFO
TEST OPTIONS
4.
Circuit breaker OK.
Continuity Test or
Radio OK.
STE/ICE-R #91
Is continuity present
POSSIBLE PROBLEMS
REASON FOR QUESTION
between relay K53
Faulty relay K53.
If continuity is not present,
terminals 30 and 87A?
Faulty dashboard cable
relay K53 is faulty.
assembly.
NO
Replace relay K53
YES
(para 7-9).
WARNING
KNOWN INFO
TEST OPTIONS
Read WARNING
5.
Circuit breaker OK.
Voltage Test or
on following page.
Radio OK.
STE/ICE-R #89
Is 24 vdc present at
REASON FOR QUESTION
Relay K53 OK.
relay K53 terminal 85?
POSSIBLE PROBLEMS
If 24 vdc is not present,
Faulty dashboard cable
wire 1960 is faulty. If
assembly.
24 vdc is present,
wire 1906 is faulty.
NO
Repair wire 1960 (para 2-45)
or replace WTEC II dashboard cable
YES
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
Repair wire 1906 (para 2-45)
or replace WTEC II dashboard cable
assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
2-1134
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