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 action7.(Cont)Bad PC board A8,so wires can be tagged and dis-or mode switchconnected from TB3 on bot-S3. (Cont)tom of power supply.(4) To install new power supply, re-move cover, and turn unit soTB3 is accessible. Supportpower supply and connectwires to TB3. Turn power sup-ply upright and position it overstandoffs on side of CU en-closure. Note that cableclamp goes under screw on bot-tom front of power supply. In-sert screws and tighten to securepower supply. Connect wiresto TB1. Replace cover and se-cure with screws. Connectwires to TB2 and TB4. Posi-tion battery outside CU en-closure. Carefully insert bat-tery end first; turn and lowerit into bottom of CU enclosure.Connect wires to battery ter-minals. Switch on main circuitbreaker.(5) Turn on switch S1 on power sup-ply. Depress TRANSMITTERRESYNC switch S2. Waitabout 5 minutes for system tostabilize. During 5-minute sta-bilization period, check powersupply. Set multimeter to dcvolts and connect negative leadto power supply, TB2-3. Metershould indicate 20 ±1 vdc. Con-nect positive lead to TB2-5.Meter should indicate 5 ± 0.25vdc. Connect lead to TB2-2.Meter should indicate 28 ±2 vdc.Turn mode switch to TEST/RE-SET and then to SECURE.5-95
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