Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10

Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10_63

Troubleshooting Procedures - Continued - TM-5-6350-264-14P-10_65

TM-5-6350-264-14P-10 Alarm Set Control Manual
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TM 5-6350-264-14&P-10 NAVELEX EE 181-AA-OMI-110/E121 C-9412 T.O. 31S9-2FSS9-1-10 Table 5-2. Troubleshooting Procedures - Continued Trouble Probable cause Corrective action 2. (Cont) d. (Cont) wires from TB2 and TB4. Remove screws that secure cover, and remove cover. Tag and disconnect wires from TB1. Carefully remove screws that secure power supply to side of CU enclosure. Be careful not to drop it inside CU. Note cable clamp under screw near TB4 (bottom front). Support power supply and turn it so wires can be tagged and disconnected from TB3 on bottom of power supply. (2) To install new power supply, remove cover, and turn unit so TB3 is acces- sible. Support power supply, and connect wires to TB3. Turn power supply upright and position it over standoffs on side of CU enclosure. Note that cable clamp goes under screw on bottom front of power supply. Insert screws and tighten to secure power supply. Connect wires to TB1. Replace cover and secure with screws. Connect wires to TB2 and TB4. Position battery outside CU enclosure. Carefully insert battery end first; turn and lower it into bottom of CU enclos- ure. Connect wires to battery ter- minals. Switch on main circuit breaker. (3) Turn on switch S1 on power supply. Depress TRANSMITTER RESYNC switch S2. Wait about 5 minutes for system to stabilize. During 5-minute stabilization period, check power supply. Set multimeter to dc volts and connect negative lead to chassis (ground). Connect positive lead to power supply, TB2-3. Meter should indicate 20 1 vdc. Connect posi- tive lead to TB2-5. Meter should in- dicate 5 0.25 vdc. Connect lead to TB2-2. Meter should indicate 28 + 2 vdc. Turn mode switch to TEST/ RESET and then to SECURE. 5-46

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