TM 1-1520-238-T-69–2769–84.PILOT COLLECTIVE STICK – DOES NOT EXTEND LANDING/SEARCH LIGHT9–84Tools:NomenclaturePartNumberTool Kit, ElectricalSC518099CLA06Repairer’sMultimeter, DigitalAN/PSM-45Personnel Required:68XArmament/Electrical Systems RepairerOne person to assistReferences:TM 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. Check for 28 VDC at (A76)J1-V.Is voltage present?YESGo to step 2.NOGo to paragraph 9–263 totroubleshoot circuit protectionsystem (dc emergency bus –pilot station).2. Check for open between:P463-V and J107-m,DS11-1 and ground,J107-k and DS11-6.Does open exist?YESRepair open wire.Go to paragraph 9–80.NOGo to step 3.3. On pilot collective stick, set and holdEXT/RET/L/Rswitch (S1) to EXT, check foropen between P107-m and P107-k.Does open exist?YESReplace pilot EXT/RET/L/Rswitch (S1)(TM 1-1520-238-23).NOReplace landing/search light(TM 1-1520-238-23).END OF TASK
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