TABLE 7-6. IDU FAIL CODE INDEX

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

TSTS TROUBLESHOOTING PROCEDURES

CORRECTIVE

CODE

ACTION

DISPLAY

UNRESOLV- Do procedure in figure 7-21.

ABLE FAULT

4.0.0.2

Do procedure in figure 7-22.

4.0.0.3

Do procedure in figure 7-23.

4.0.0.8

Replace THERMAL MODE switch; refer to Replace Rotary Switch S9, S10, or

S11; volume lV, para. 2-6.

4.0.0.9

Replace THERMAL TEST switch; refer to Replace Rotary Switch S9, S10, or

S11; volume lV, para. 2-6.

Replace panel interface circuit card assembly A3; refer to Remove and Install

4.0.0.14

Circuit Card Assembly; volume IV, para. 2-7.

Do procedure for faiI code 4.0.0.14.

4.0.0.15

Do procedure in figure 7-21.

4.3.0.0

Replace video circuit card assembly A1; refer to Remove Circuit Card Assembly

4.3.0.1

A1 or A2 volume lV, para. 2-8.

Replace circuit card assembly A2; refer to Replace Circuit Card Assembly

4.3.0.2

A1 or A2 volume lV, para. 2-8.

4.3.0.3

Do procedure in figure 7-24.

4.3.0.4

Replace power supply; refer to volume IV, para. 2-8.

Do procedure in figure 7-25.

4.4.0.0

4.4.0.1

Do procedure for faiI code 4.3.0.1.

4.4.0.2

Replace FAULT lamp bulb; refer to Replace Light-Switch; volume lV, para. 2-6.

Replace TRU READY lamp bulb; refer to Replace Lens, Lamp, or Housing;

4.4.0.3

volume IV, para. 2-6.

4.4.0.4

Do procedure in figure 7-25.

4.5.0.1

Do procedure in figure 7-7.

Figure 7-16. (Sheet 32 of 34)

7-93

Volume Ill