Table 5-4. Troubleshooting - Continued

TM 9-4931-378-13&P

Table 5-4. Troubleshooting - Continued

Malfunction

Test or Inspection

Corrective Action

51. NO VOLTAGE BETWEEN TP12 AND ANY OF J3-2, J3-14, J4-17, J4-25 or J4-26.

Step 1. Perform continuity check of appropriate wiring. (See paragraph 5-14 and figure FO-1.)

Repair wiring as necessary.

52. VOLTAGES AT S4, S19, S11, DS12, P1, P2 AND P3 OUT OF TOLERANCE

Step 1. Perform continuity check of appropriate wiring. (See paragraph 5-14 and figure FO-1.)

Repair wiring as necessary.

53, NO VOLTAGE BETWEEN TP4 AND J4-54 WITH S4 IN THE OFF (DOWN) POSITION.

Step 1. Perform continuity check of wiring to S4. (See paragraph 5-14 and figure FO-1.)

Repair wiring as necessary.

Step 2. Check switch S4.

Replace switch S4.

54. VOLTAGE BETWEEN TP4 AND J4-54 OUT OF TOLERANCE WITH S4 IN RDR ALT RELBL.

Step 1. Check switch S4.

Replace switch S4.

55. NO VOLTAGE BETWEEN TP4 AND J3-4 WITH S19 IN PANEL LIGHTS.

Step 1. Perform continuity check of wiring to S19. (See paragraph 5-14 and figure FO-1.)

Repair wiring as necessary.

Step 2. Check switch S19.

Replace switch S19.

56. VOLTAGE BETWEEN TP4 AND J3-4 OUT OF TOLERANCE WITH S19 IN OFF (DOWN) POSITION.

Step 1. Check switch S19.

Replace switch S19.

AND S17 IN EVERY POSITION.

57. NO VOLTAGE BETWEEN TP9 AND TPIO WITH S11 IN

SIG circuit between P1 and S17. (See paragraph 5-14 and

Step 1. Perform continuity check of UB

Repair wiring as necessary.

SIG circuit between P1 and J3. (See paragraph 5-14 and figure F0-1.)

Step 2. Perform continuity check of

FO-1.)

Repair wiring as necessary.

Step 3. Check switch S17.

Replace switch S17.

Step 4. Replace CCA 1A3.

KN.

58. NO VOLTAGE BETWEEN TP9 AND TP10 AT ONE OR MORE POSITIONS OF S17 WITH S11 IN

Step 1. Perform continuity check of relevant circuits between P1 and S17. (See paragraph 5-14 and figure

Repair wiring as necessary.

Step 2. Replace CCA 1A3.

5-31