Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10

Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10_28

Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10_30

TM-5-6350-264-14P-10 Alarm Set Control Manual
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TM 5-6350-264-14&P-10 NAVELEX EE 181-AA-OMI-110/E121 C-9412 T.O. 31S9-2FSS9-1-10 Table 5-2. Troubleshooting Procedures - Continued Trouble Probable cause Corrective action 1. (Cont) a. (Cont) volts and connect negative lead to chassis (ground). Connect positive lead to power supply, TB2-3. Meter should indicate 20+1 vdc. Connect positive lead to TB2-5. Meter should indicate 5 +0.25 vdc. Connect lead to TB2-2. Meter should indicate 28 +2 vdc. Turn mode switch to SECURE and then TEST/RESET. f. Turn off switch S1 on top of power sup- ply. Remove PC boards Al through A6. Place thumb or finger under board ejector and lift up until board pops out of recep- tacle at back of status processor. Then grasp PC board and pull straight out. g. Inspect wires for loose or broken connec- tions at TB8-F through TB13-E, TB2-4, and P1/J12. h. Set multimeter to ohms and check for continuity (0 ohms) by connecting meter leads to the following points: J1-4 to TB8-F-1 J1-4 to TB8-F-2 via P1/J12-3 J1-4 to TB8-F-3 J1-12 to TB8-F-1 J1-12 to TB8-F-2 via P1/J12-4 J1-12 to TB8-F-3 J2-4 to TB9-A-1 J2-4 to TB9-A-2 via P1/J12-5 J2-4 to TB9-A-3 J2-12 to TB9-A-1 J2-12 to TB9-A-2 via P1/J12-7 J2-12 to TB9-A-3 J3-4 to TB10-B-1 J3-4 to TB10-B-2 via P1/J12-8 J3-4 to TB10-B-3 J3-12 to TB10-B-1 J3-12 to TB10-B-2 via P1/J12-9 J3-12 to TB10-B-3 J4-4 to TB11-C-1 J4-4 to TB11-C-2 via P1/J12-10 J4-4 to TB11-C-3 } } ^}} ^}} } 5-11

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