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Sheet DP028BREAKDOWN DETECTION FLOW CHARTNO JIB MOVEMENT (UP AND / OR DOWN)FROM THE PLATFORM (OR TURNTABLE) CONTROL PANELFolio 4/5CPlatform jib faultTurntable jib faultMaintain the controlactivated and check for12V voltage at terminals410 (up) and 409 (down) ofthe printed circuitMaintain the controlactivated and check for12V voltage at terminals406 (up) and 405 (down) ofthe printed circuit12VOKNOOpen the platform controlpanel (or turntable) and checkthe wiring of jib switch SA7 (orSA6)YESReplace the U1 moduleSee FicheC058 or C07WiringOKNORepair wiringYESCheck the electric continuity ofthe switch contacts when closedENDNOThe faultpersistsENDYESReplace theprinted circuitSee FicheC063ContinuityOKNOENDYESReplace the jib switchSA7 (or SA6)See FicheC043 (orFiche C044)Repair the connection or replace theelectric wiring harness between the jibswitch SA7 (or SA6) on the printed circuit ofthe turntable control panelENDEND