TM 5-6350-264-14&P-10NAVELEX EE 181-AA-OMI-110/E121 C-9412T.O. 31S9-2FSS9-1-10Table 5-2. Troubleshooting Procedures - ContinuedTroubleProbable causeCorrective action8.(Cont)Bad alarm(4) To install new status processor,identificationposition it under standoffscircuitry.in top of CU. Insert screws(Cont)and tighten to secure statusprocessor. Insert plug P1 intoconnector on bottom of pro-cessor, and push up. Tightenscrews to secure plug P1.Position Data Transmitterover standoffs in CU and in-sert screws. Tighten screws tosecure Transmitter. Connectwires to TB6 and TB7 in CU.(5) Turn on switch S1 on power sup-ply. Depress TRANSMITTERRESYNC switch S2. Waitabout 5 minutes for system tostabilize. Turn mode switch toTEST/RESET and then toSECURE.j.Remove PC board A12. Set multimeterto ohms. Connect negative lead tochassis. Connect positive lead towhichever gold pin on board A11is associated with PC board where18.5 to 21 vdc was present on TP1.Meter should indicate 1,500 to3,000 ohms after alarm ceases.Turn mode switch to TEST/RESETand then SECURE. After expira-tion of time delay period, metershould indicate more than 100,000ohms. If indications are correct,replace A12. If indications arenot correct, replace A11.(1) To remove PC boards A11 andA12, turn off switch S1 ontop of power supply. Placethumb or finger under boardejector on A11 and lift up un-til board pops out of recepta-cle at back of status processor.Then grasp PC board and pullstraight out. Carefully pull A11and A12 apart.5-107
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