TABLE 7-4. PCU FAIL CODE INDEX

TM 9-4931-381-14&P-1

TSTS TROUBLESHOOTING PROCEDURES

TABLE 7-4.

PCU FAIL CODE INDEX

CODE

CORRECTIVE

DISPLAY

ACTION

UNRESOLV-

P C U cannot be repaired at DS/GS level. Turn in PCU to

ABLE FAULT

depot.

1.1.0.1

R e p l a c e filter assembly A6; refer to Remove and Install

Filter Assembly A6, TM 9-1200-206-34-2-2, para. 3-7.

1.1.0.2

R e p l a c e electronic component; refer to Remove and Install

Electronic C o m p o n e n t , T M 9-1200-206-34-2-2, para. 3-7.

1.1.0.3

Refer to procedure in figure 7-34.

1.1.0.4

R e p l a c e alternating current generator A5; refer to Rernove

and

Install

Alternating

Current

Generator A5, TM

9 - 1 2 0 0 - 2 0 6 - 3 4 - 2 - 2 , para. 3-7.

1.2.0.1

Do procedure in figure 7-32.

1.2.0.2

Do procedure for fail code 1.1.0.1. If A1 and A2 cards are

r e m o v e d then replace original Al and A2 cards; refer to

Remove and Install Switching Regulator A1 and Remove and

Install Converter Assembly A2, TM 9-1200-206-34-2-2, para.

3-7.

1.2.0.3

Replace switching regulator A1; refer to Remove and Install

S w i t c h i n g Regulator A1, T M 9-1200-206-34-2-2, para. 3-7.

I f A2 card is removed then replace original A2 card; refer

Remove

and

Install

Converter A s s e m b l y A 2 , T M

9 - 1 2 0 0 - 2 0 6 - 3 4 - 2 - 2 , para. 3-7.

1.2.0.4

D o procedure for fail code 1.1.0.2.

R e p l a c e original Al

a n d A 2 c a r d s ; r e f e r t o R e m o v e a n d I n s t a l l Switching

R e g u l a t o r A1 and Remove and Install Converter Assembly

A2, TM 9-1200-206-34-2-2, para. 3-7.

Figure 7-14.

(Sheet 9 of 12)

7-56

Volume III