TM 1-1520-238-T-58–1938–107. PILOT CLOCK EDGE–LIGHTING – DOES NOT LIGHT8–107Tools:NomenclaturePartNumberTool Kit, ElectricalSC518099CLA06Repairer’sMultimeter, DigitalAN/PSM-45Personnel Required:68XArmament/Electrical Systems Repairer(2)References:TM 1-1520-238-T-6TM 1-1520-238-23WARNINGTurn off power before detaching orattaching wires and connectors. Highcurrent 28 VDC or 115 VAC is present.Failure to do so could result in death orserious injury.1. On pilot center circuit breaker panel, close LTPRI circuit breaker. Check for 5 VDC between(A326):J9–A15 and J9–A16.Is voltage present?YESGo to step 3.NOGo to step 2.2. Check for 5 VDC at(A326)TB1–33–D.Is voltage present?YESRepair open wire between(A326):J9–A15 and TB1–33–D,J9–A16 and TB1–34–D.Go to paragraph 8–105.NORefer to TM 1-1520-238-T-6 totroubleshoot pilot edge–lights.3. Check for 5 VDC betweenP121–1 and P121–3.Is voltage present?YESReplace pilot clock(TM 1-1520-238-23).NORepair open wire between:P487–A15 and P121–3,P487–A16 and P121–1.Go to paragraph 8–105.END OF TASK
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