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)d. (Cont)t.Set multimeter to ohms and connect leads toTB6, terminals S1-D and S1-DR. Pressand release TAS.u.If meter indicates less than 2,000 ohms, re-move PC board A8.To remove PC board A8, placethumb or finger under boardejector and lift up until boardpops out of receptacle at backof status processor. Then graspPC board and pull straight out.v.Turn on switch S1 on power supply. De-press TRANSMITTER RESYNC switchS2. Wait about 5 minutes for system tostabilize. Turn mode switch to TEST/RESET and then to SECURE.w.Set meter to dc volts and connect positiveleads to J8-11 and negative lead tochassis.x.If meter indicates 1 vdc or less, replace PCboard A7.(1) To remove PC board A7, 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 A7, turn boardso plastic ejector is toward top.Align board with guides at top andbottom of status processor. Slideboard straight in until it contactsreceptacle at back of processor.Then press firmly on board untilit seats completely in receptacle.(3) Turn on switch S1 on power supply.Depress TRANSMITTER RESYNCswitch S2. Wait about 5 minutes5-64
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