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 action10. (Cont)b.(Cont)d.If meter indicates 28 +2 vdc, replacebattery.(1) To remove battery, turn off switchS1 on power supply. Discon-nect wires from battery termi-nals. As battery is heavy, care-fully lift and turn to remove itfrom bottom of enclosure.(2) To install new battery, position itoutside CU enclosure. Care-fully insert battery end first;turn and lower it into bottomof CU enclosure. Connectwires to battery terminals.Turn on switch S1 on powersupply. Connect meter leadsto battery terminals. Metershould indicate 28 + 2 vdc.Depress TRANSMITTER RE-SYNC switch S2. Wait about5 minutes for system to sta-bilize. During 5-minute stabili-zation period, check power sup-ply. Set multimeter to dc voltsand connect negative lead tochassis (ground). Connect pos-itive lead to power supply,TB2-3. Meter should indicate20 ± 1 vdc. Connect positivelead to TB2-5. Meter shouldindicate 5 ± 0.25 vdc. Connectlead to TB2-2. Meter shouldindicate 28 + 2 vdc. Turn modeswitch to TEST/RESET andthen to SECURE.5-121
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