TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).w. AFES, CREW (continued).(1) POWER ON LAMP DOES NOT LIGHT WHENMASTER SWITCH IS TURNED ON. All otherelectrical systems operate.Initial Setup:Tools/Test Equipment:l Digital multimeter (DMM) (Item 13, Appendixl General mechanic’s tool kit (Item 24,Appendix I)Personnel Required: TwoEquipment Conditions:l Crew AFES T/A panel MAINT switch inmaintenance position (para 21 -3).NOTEl Instead of usingmultimeterfor voltage check, STE/lCEtroubleshooting,INDIVIDUALBATTERY VOLTAGE TEST-TEST89 maybe performed.l Instead of usingmulti meterfor continuity check, STE/lCEtroubleshooting, TEST 91 maybe performed.Turn crew AFES T/A panelMaintenance switch to verticalposition before disconnecting anyelectrical wiring harnesses. Failureto comply may result in dischargeof extinguisher cylinders and injuryto personnel.1. Place red lead of multimeter in pin socketB of harness 12352316 and ground blacklead of multimeter.2. Check for 24 ± 3 vdc.3. Repeat procedure for socket A.B. 1. Reconnect wire harness 12352316 to crewAFES T/A panel.Continued on next page2-347
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