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)g. (Cont)Secure bracket and stop to switchwith lock washer and small hex nut.Insert lock through hole in CUdoor; slip spacer over lock. Slipswitch arm over switch shaft. En-sure that arm is aligned with tangon switch stop. Place large hex nutinside switch mounting bracket; En-gage switch shaft in lock. Tightennut to secure switch.(3) Turn on switch S1 on power sup-ply. Depress TRANSMITTERRESYNC switch S2. Wait about5 minutes for system to stabilize.During 5-minute stabilization per-iod, check power supply. Set mul-timiter to dc volts and connect neg-ative lead to chassis (ground). Con-nect positive lead to power supply,TB2-3. Meter should indicate20 1 vdc. Connect positive leadto TB2-5. Meter should indicate5 0.25 vdc. Connect lead toTB2-2. Meter should indicate28 2 vdc. Turn mode switch toTEST/RESET and then to SE -CURE.2.Nuisancea. Bad tampera.Close CU door. Ensure that there is noalarms.switch.debris of any sort between door and en-closure. Ensure that door and enclosureare not warped or bent. Ensure that doorcloses tightly.b.Open CU door. Set multimeter to dcvolts and connect positive meter lead toPC board A7, TP1 (brown), and negativelead to chassis (ground). Push TAS plun-ger all the way in, and then pull plungerall the way out. Meter should indicateless than 0.5 vdc for both switch posi-tions. Depress TAS plunger and then re-lease. Meter should indicate 18.5 to21 vdc.5-35
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