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 2. (Cont) e. (Cont) board pops out of receptacle at back of status processor. Then grasp PC board and pull straight out. (2) To install new PC boards A9 or A10, turn board so plastic ejector is to- ward top. Align board with guides at top and bottom of status proces- sor. Slide board straight in until it contacts receptacle at back of pro- cessor. Then press firmly on board until it seats completely in recepta- cle. k. Turn on switch S1 on power supply. De- press TRANSMITTER RESYNC switch S2. Wait about 5 minutes for system to stabilize. Turn mode switch to TEST/RESET and then to SECURE. f. Bad TRANS- a. Tag, remove, and isolate Data Transmitter MITTER wire from TB7, terminal S-7. Set RESYNC multimeter to ohms and connect leads switch. to TB7, terminals S-6 and S-7. Meter should indicate over 100, 000 ohms. b. Depress TRANSMITTER RESYNC switch. Meter should indicate 0 ohms. c. If meter indicates more than 100, 000 ohms with switch depressed, connect leads to terminals with red and black wires attached on back of TRANSMITTER RESYNC switch. d. With switch depressed, meter should indicate 0 ohms. With switch released, meter should indicate over 100, 000 ohms. e. If these indications are not correct, replace switch. (1) To remove TRANSMITTER RESYNC switch, turn off switch S1 on power supply. Remove hex nut and push switch through hole in panel. Use 5-50