Countermeasures Control Procedures.

TM 32-5865-218-24&P

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

paragraph 5-12f. Figure 5-3 thru 5-6 and table 5-4 contain test

equipment connections referenced in table 5-3. After isolating the

problem, refer to section IV of this chapter for the appropriate

maintenance procedure.

MAINTENANCE

Section IV.

5-9. General.

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.