Troubleshooting Procedures

TM 5-6350-264-14&P-10 NAVELEX EE 181-AA-OMI-110/E121 C-9412 T.O. 31S9-2FSS9-1-10 Table 5-2. Troubleshooting Procedures - Continued Trouble Probable cause Corrective action 1. (Cont) a. (Cont) k. If meter indicates 0 ohms in step i. above, remove PC boards Al through A6. (1) To remove PC boards Al through A6, place thumb or finger under board ejector and lift up until board pops out of receptacle at back of status processor. Then grasp PC board and pull straight out. (2) Check for continuity by connecting meter leads to the following points: J12-3 to J1-4 J12-4 to J1-12 J12-5 to J2-4 J12-7 to J2-12 J12-8 to J3-4 J12-9 to J3-12 J12-10 to J4-4 J12-11 to J4-12 J12-12 to J5-4 J12-13 to J5-12 J12-14 to J6-4 J12-15 to J6-12 (3) To reinstall PC boards Al through A6, note that these boards are identi- cal and may be installed in any slot, 1 through 6. Turn PC board so that plastic board ejector is toward top. Align board with guides at top and bottom of status processor. Slide board straight in until it contacts re- ceptacle at back of processor. Then press firmly on board until it seats completely in receptacle. l. If meter indicates more than 0 ohms re- place Status Processor Interconnecting Wiring Subassembly (SPWS). (1) To remove status processor, turn off switch S1 on power supply. Tag and disconnect Data Transmitter wires from TB6 and TB7. Remove screws that secure Transmitter to standoffs 5-14