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 action1.(Cont)a.(Cont)If an intrusion alarm is indicated on PCboard A2, TP1, for example, connectjumper to terminal numbers 1 and 2 onTB9-A. With jumper installed, metershould indicate less than 0.5 vdc. Withjumper removed, meter should indicate18.5 to 21 vdc. If these voltages are cor-rect, there is a genuine alarm condition.d.If voltage indications at TP1 and TP2are correct, troubleshoot interconnect-ing wiring and associated sensor per stepsin TM5-6350-264-14/1, System Manual.e.If voltage indications at TP1 and TP2 arenot correct, replace faulty PC board instatus processor.(1) To remove PC boards A1 throughA6, turn off switch S1 on top ofpower supply. Place thumb or fin-ger under board ejector and lift upuntil board pops out of receptacleat back of status processor. Thengrasp PC board and pull straight out.NOTEPC boards Al through A6are identical and may be in-stalled in any slot, 1 through6.(2) To install new PC boards Al throughA6, turn PC board so that plasticboard ejector is toward top. Alignboard with guides at top and bot-tom of status processor. Slide boardstraight in until it contacts receptacleat back of processor. Then pressfirmly on board until it seats com-pletely in receptacle. Turn on switchS1 on top of power supply. DepressTRANSMITTER RESYNC switch .S2. Wait about 5 minutes for systemto stabilize. During 5-minute stabili-zation period, set multimeter for dc5-10
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