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 1. (Cont) h. Defective a. Set multimeter to ohms. fuse. b. Remove fuse from fuse holder. Connect meter leads to each end of fuse. c. If meter indicates more than 100,000 ohms, replace fuse. 2. Nuisance a. Audible Alarm Ensure that the Audible Alarm unit is mounted rigidly alarms. unit mounting. to a flat surface, that the door is flat, and there is no play when the door is locked. b. Defective a. Set the multimeter to ohms. Connect meter leads tamper to tamper switch terminals that have wires con- switch. nected. (1) Depress the switch plunger. Meter should read 0 ohms. (2) Release the switch plunger. Meter should read more than 100,000 ohms. b. If meter indications are not correct, replace tamper switch. (1) To remove door tamper switch, remove tam- per switch support mounting screws. Push switch through outer enclosure. Tag wires and use a soldering iron of 50 watts maxi- mun to unsolder wires. Unscrew switch from switch support and remove switch. (2) To install new door tamper switch, screw switch into switch support. Use a solder- ing iron of 50 watts maximum to solder wires. Position switch enclosure support bracket and install tamper switch support mounting screws. (3) To remove pry-off tamper switch, remove mounting screws from tamper switch brack- et. Remove snap on button cap. Remove hex nut and push switch through switch 5-17