TM 5-6350-264-14&P-9NAVELEX EE 181-AA-OMI-100/E121 DZ-204T.O. 31S9-2FSS9-1-9Table 5-1. Troubleshooting Procedures - ContinuedTroubleProbable causeCorrective action3. (Cont)h.(Cont)b.If meter indicates less than 21 vdc, replace battery.(1) To remove battery, disconnect battery wiresfrom battery. Remove screw and washerfrom battery clamp bracket and removebattery.(2) To install new battery, position battery andbattery clamp bracket. Install screw andwasher. Connect battery wires to battery.4. Lowa.Defectivea.Interrupt ac power from Control Unit. Set multi-Audiblebattery.meter to dc volts. Connect positive meter lead toAlarmred battery terminal and negative meter lead tosoundblack battery terminal. Ensure that powerlevel.switch S3 is set to POWER ON. Meter shouldindicate 21 vdc or more.b.If meter indicates less than 21 vdc, replacebattery.(1) To remove battery, disconnect batterywires from battery. Remove screw andwasher from battery clamp bracket andremove battery.(2) To install new battery, position battery andbattery clamp bracket. Install screw andwasher. Connect battery wires to battery.b.Defectivea.Set multimeter to ac volts. Connect leads topower trans-TB3-1(+) and TB3-2(-).former T1.b.If meter indicates less than 60 vac, replace defec-tive power transformer.(1) To remove transformer, note length and con-nection location of transformer wires. Dis-connect wires. Remove mounting screwsand washers. Connect transformer wires.(2) To install new transformer, cut transformerwires to proper length and install crimpterminals. Position transformer on innerenclosure and install mounting screws andwashers. Connect transformer wires.5-25
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