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 action5. (Cont)b. Bada.Tag, remove, and isolate Data TransmitterSECURE/or Monitor Cabinet wires from TB6,ACCESSterminals S-2 and S-2R. Turn modeidentificationswitch S3 to SECURE. Set multi-circuitry.meter to ohms and connect leads toTB6, terminals S-2 and S-2R.b.If meter indicates less than 2,000 ohms,replace PC board A8.c.Turn mode switch to TEST/RESET andback to SECURE. Meter shouldindicate less than 2,000 ohms for4.5 to 6 seconds.d.If meter indicates less than 2,000 ohmsfor less than 4.5 or more than 6 sec-onds. Replace PC board A8.(1) To remove PC board A8, turn offswitch S1 on top of power supply.Place thumb or finger under boardejector and lift up until board popsout of receptacle at back of statusprocessor. Then grasp PC boardand pull straight out.(2) To install new PC board A8, turnboard so plastic ejector is to-ward top. Align board withguides at top and bottom ofstatus processor. Slide boardstraight in until it contacts recep-tacle at back of processor. Thenpress firmly on board until itseats completely in receptacle.(3) Turn on switch S1 on power sup-ply. Depress TRANSMITTERRESYNC switch S2. Wait about5 minutes for system to stabil-ize. During 5-minute stabiliza-period, check power supply.Set multimeter to dc volts andconnect negative lead to chassis(ground). Connect positive lead5-84
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