TM 1-1520-238-T-69–3709–146. ALL CHANNEL 4 NO. 2 EDGE-LIGHT PANELS – DO NOT LIGHT9–146Tools:NomenclaturePartNumberTool Kit, ElectricalSC518099CLA06Repairer’sMultimeter, DigitalAN/PSM-45Personnel Required:68XArmament/Electrical Systems RepairerOne person to assistReferences:TM 1-1520-238-23Equipment Conditions:RefConditionTM 1-1520-238-23Non-transparent barrierremovedWARNINGTurn 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 5 VDC between (A326):TB1-46-A and TB1-46-G.Is voltage present?YESReplace terminal board(A326)TB1-46(TM 1-1520-238-23).NOGo to step 2.2. Check for open between:P110-BB and (A326)TB1-46-A,P110-FF and (A326)TB1-46-G.Does open exist?YESRepair open wire.Go to paragraph 9–132.NOGo to step 3.3. Detach wire ends from (A326):TB1-46-A and TB1-46-G. Check for shortbetween:P110-BB and ground,P110-FF and ground.Does short exist?YESRepair shorted wire.Go to paragraph 9–132.NOReplace multi-channel dimmingcontroller (TM 1-1520-238-23).END OF TASK
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