5-8. Countermeasures Control Procedures. Troubleshooting of the
countermeasures control consists of performing a series of checks on
specific items to isolate a fault. Separate instructions are
provided for voltage regulator A1 and the remaining components in the
countermeasures control. The instructions assume that system-level
troubleshooting by organizational maintenance personnel has been
performed as given in TM 32-5865-012-20 to isolate the problem to the
countermeasures control. After performing general inspection and
cleaning procedures in section IV of this chapter, refer to the
following paragraphs for troubleshooting instructions.
a. Voltage Regulator A1 Troubleshooting. The voltage
regulator troubleshooting procedure (table 5-2) checks operation of
circuit breaker CB1 and voltage regulator A1. After performing
general inspection and cleaning procedures in section IV of this
chapter, refer to table 5-2 and perform each step in sequence.
Figures 5-1 and 5-2 show test equipment connections referenced in
table 5-2. After isolating the problem, refer to section IV of this
chapter for the appropriate maintenance procedure.
b. Countermeasures Control Troubleshooting. The
countermeasures control troubleshooting procedure (table 5-3)
consists of a series of tests that verify operations of all
components except circuit breaker CB1 and voltage regulator A1 (see
paragraph 5-8a). The procedure also checks the circuits on indicator
CCA A3. After performing the general inspection and cleaning
procedures in section IV of this chapter, refer to table 5-3. The
steps in table 5-3 may be performed in sequence or independently to
If the problem listed on the
verify a specific component.
maintenance form indicates the crew call flasher circuit (connector
pins J7-C, J8-R, and/or J3-C), replace indicator CCA A3 as given in
equipment connections referenced in table 5-3. After isolating the
problem, refer to section IV of this chapter for the appropriate
This section provides maintenance procedures that are
the responsibility of general support maintenance personnel.
Paragraph 5-10 contains general inspection and cleaning instructions
for the ECM panel indicator and the countermeasures control.
Subsequent paragraphs contain specific maintenance procedures for
individual equipment items. Perform both general procedures and
applicable specific procedures.