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 action4. (Cont)g. (Cont)f.If meter indicates 5 ± 0.25 vdc at S3, ter-minal 3-2, remove leads and set mul-timeter to ohms. Remove PC boardA10.To remove PC board A10, turnoff switch S1 on top ofpower supply. Place thumbor finger under board ejec-tor and lift up until boardpops out of receptacle atback of status processor.Then grasp PC board andpull straight out.g.Connect meter leads to S3, terminal 3-4,and J10-11.h.If meter indicates more than 100,000ohms, inspect wires from S3, ter-minal 3-4 to J12/P1 pin 32 toJ10-11 for loose or broken connec-tions. Resolder any bad connectionson P1.i.If meter indicates 0 ohms, connect leadsto J10-R and power supply TB4-1.j.If meter indicates more than 100,000ohms, inspect wires from J10-R toJ12/P1 pin 30 to TB4-1 for looseor broken connections. Resolderany bad connections on P1.k.If meter indicates 0 ohms, connect leadsto S3, terminal 3-4 and J10-4. Turnmode switch S3 to SECURE andthen to ACCESS.l.If meter indicates less than 2,000 ohmsin SECURE and more than 100,000ohms in ACCESS, and if there is ajumper wire from S3, terminal 3-1to terminal 3-3, replace mode switchS3.5-78
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