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)b.Defectivea.Set multimeter to dc volts. Connect positiveelectronicsmeter lead to TB2-3 and negative meter lead toassembly.TB2-2.b.If meter indicates 5 +0.5 vdc, replace the elec-tronics assembly.CAUTIONInner enclosure is heavy. Use caution when removingfrom outer enclosure.(1) To remove electronics assembly, loosencollar on connect P2. Turn metal tab 90degrees and disconnect P2 from J2. Tag anddisconnect wires that run from terminalboards to conduit. Slide the inner enclo-sure out of the outer enclosure. Placeinner enclosure on bench. Remove screws,lock washers, and washers and disconnectconnector J1 from P1. Remove electron-ics assembly mounting screws from rear ofinner enclosure. Remove electronicsassembly.(2) To install new electronics assembly, positionassembly on inner enclosure. Install mount-ing screws through rear of inner enclosure.Connect J1 to P1 and install screws, lockwashers, and washers. Slide inner enclosureinto outer enclosure. Route wires throughhole in rear of inner enclosure. Connectwires that run from terminal boards to con-duits. Align notch on P2 to J2. Lock metaltabs together and tighten collar on con-nector P2.c.Set multimeter to ac volts. Connect leads to P1-9and P1-23.d.If meter indicates less than 1 vac, replace electro-nics assembly.5-21
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