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 action1. (Cont)b. (Cont)k.If meter indicates 68 +7 vac, turn off power switch S3.Disconnect Pi/J1 and connect meter leads to P1-1 and P1-2.Turn on switch S3.1.If voltage is not within tolerance (68 +7 vdc), replace powertransformer.(1) To remove transformer, note length and connectionpoints of transformer wires. Disconnect wires. Removemounting screws and washers. Remove transformer.(2) To install new transformer, cut transformer wires toproper length and install crimp lugs. Position transformeron inner enclosure and install mounting screws andwashers. Connect transformer wires.m. If voltage is within tolerance, replace electronics assembly.CAUTIONInner enclosure is heavy. Use caution when removingouter enclosure.(1) To remove electronics assembly, loosen collar onconnector P2. Turn metal tab 90 degrees anddisconnect P2 from J2. Tag and disconnect wires thatrun from terminal boards to conduit. Slide the innerenclosure out of the outer enclosure. Place innerenclosure on bench. Remove screws, lock washers, andwashers and disconnect connector J1 from P1. Removemounting screws from rear of inner enclosure andremove electronics assembly.(2) To install new electronics assembly, position assemblyon inner enclosure. Install mounting screws through rearof inner enclosure. Connect J1 to P1 and install screws,lock washer, and washers. Slide inner enclosure intoouter enclosure.5-10
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