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 action3. AlarmImproper adjust-If alarm sounds after entry and before modesoundsment ofswitch can be turned to ACCESS, or ifduringentry/exitalarm sounds after mode switch is turnedentry/exittime delayto SECURE and before exit from securetime delayarea, refer to TM5-6350-264-14/1, SystemManual, for adjustment of entry or exit timedelay.NOTEIf Data Transmitter is installed, it mustbe removed to reach TB8-F throughTB13-E. Remove screws that securetransmitter and carefully move it aside.Reinstall transmitter after tests.4. No alarmsa. Bad duressa.Set multimeter to dc volts and connect nega-intrusiontive lead to chassis. Connect positiveor tamperlead to TP1 (brown) on PC board Al.switchDisconnect and then reconnect wire oncircuitry.TB8-F-1. Repeat these steps for PCboard A2 and TB9-A-1 through PCboard A6 and TB13-E-1. Meter shouldindicate 0 volts with wire connectedand 18.5 to 21 vdc with wire discon-nected.b.If meter indications are incorrect for anysteps, replace the PC board(s) beingtested.c.Connect positive meter lead to TP2 (red) onPC board A1. Disconnect and thenreconnect wire on TB8-F-3. Repeatthese steps for PC board A2 andTB9-A-3 through PC board A6 andTB13-E-3. Meter should indicate0 volts with wire connected and 18.5to 21 vdc with wire disconnected.d.If meter indications are incorrect for anysteps, replace the PC board(s) beingtested.(1)To remove PC board, turn off switchS1 on top of power supply. Placethumb or finger under board5-52
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