Troubleshooting Procedures

TM 5-6350-264-14&P-9 NAVELEX EE 181-AA-OMI-100/E121 DZ-204 T.O. 31S9-2FSS9-1-9 Table 5-1. Troubleshooting Procedures - Continued Trouble Probable cause Corrective action 2. (Cont) d. (Cont) d. If either capacitor check is less than 100,000 ohms, replace the capacitor. (1) To remove capacitor, tag and remove wires. Loosen screw on mounting bracket and re- move capacitor. (2) To install new capacitor, position in mount- ing bracket and tighten mounting screw. Connect wires to capacitor terminals. e. Defective a. Tag, remove, and isolate the yellow wires (-) from electronics C15 and C16. assembly. b. Set the multimeter to ohms. Connect leads to inner enclosure and negative terminal of C15, then to inner enclosure and negative terminal of C16. If the multimeter indications at C15 and C16 are greater than 100,000 ohms, replace the electronics assembly. CAUTION Inner enclosure is heavy. Use caution when removing from outer enclosure. (1) To remove electronics assembly, loosen collar on connector P2. Turn metal tab 90 de- grees and disconnect P2 from J2. Tag and dis- connect wires that run from terminal boards to conduit. Slide the inner enclosure out of the outer enclosure. Place inner enclosure on bench. Remove screws, lock washers, and washers. Disconnect connector J1 from P1. Remove electronic assembly mounting screws from rear of inner enclosure. Remove elec- tronics assembly. (2) To install new electronics assembly, position assembly on inner enclosure. Install mount- ing screws through rear of inner enclosure. Connect J1 to P1 and install screws, lock washers, and washers. Slide inner enclosure 5-19