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)c.Defectivea.Set multimeter to ac volts. Connect leads to TB3-6audio outputand TB3-7.transformerT2.b.If meter indicates less than 1 vac, replace audiooutput transformer.(1) To remove audio output transformer, notelength and location of transformer wires.Disconnect wires. Remove mountingscrews and lock washers and removetransformers.(2) To install new transformer, cut transformerwires to proper length and install crimpterminals. Position transformer on innerenclosure and install mounting screws andlock washers. Connect wires to terminalboard.d.Defectivea.Set multimeter to ac volts. Connect leads tospeaker.TB3-6 and TB3-7.b.If meter indicates 18 +2 vac replace speaker.(1) To remove speaker loosen collar on connec-tor P2. Turn metal tab 90 degrees and dis-connect P2 from J2. Tag and disconnectwires that run from terminal boards to con-duit. Slide the inner enclosure out of theouter enclosure. Place inner enclosure onbench. Note length and location ofspeaker wires. Disconnect wires from ter-minal board. Remove mounting screwsfrom rear of enclosure and remove speaker.(2) To install new speaker, cut speaker wires toproper length and install crimp lugs. Posi-tion speaker on inner enclosure. Installmounting screws through rear of innerenclosure. Connect wires to terminalboard.e.Defectivea.Set the multimeter to ohms. Connect meter leadstamperto tamper switch terminals that have wires con-switch.nected. Depress the switch plunger. Meter5-22
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