Sanyo PLC-EF30 Service Manual

Also see for PLC-EF30: Owner's manual Specifications

-28-LAMP ABNORMALITY -2TroubleshootingBALLAST-2 ON/OFFLAMP-2 MONITORBALLAST-1 ON/OFFLAMP-1 MONITORLAMPBALLAST-1LAMPBALLAST-2UNIT PFCPFC-1 ON/OFFPFC-2 ON/OFFAC-INPUTRL12CN1BCN4BCN2B12V (+B)IC1801I /O EXP.U20B34600PFC-2TEMP. SWCONTROLFETCN3BPFC-1TEMP. SWCONTROLFETAC 90V~264VOUTPUTDC 380V~400VTEMP. SW85˚C85˚CH: ONH: ONSTABILISER( CHOPPER )LAMPDRIVER IGNITERLAMP MONITORLAMP ON/OFF CONTROLK7B K7CK7AMAINS ISOLATIONLAMPASS'YUNIT P.F.C.IC1801I/O EXP.Output voltage.At the time of a start : 20KVp-pAt the time of stability : AC 85V typ. (70~100V)Output Frequency : 88 Hz typ.DC INPUTDC380~400VUNIT LAMP BALLASTH : AbnormalityH : ONU20B39500/39800TEMP.SENSOR 85˚CCheck the unit P.F.C..Check the unit lamp Ballast.Has not the temperatureswitch operated?If the temperature aroundFET reaches 85 degrees, thePFC circuit will be shut down.Check!Check!Check! Check!When the temperaturearound a lamp driver reaches85 degrees, unit lamp ballastwill be shut down and a lampmonitor signal changes to Hfrom L.Check!Check!Check!Check!When this output voltagereaches abnormal voltage(exceeds AC-130V), unit lampballast will be shut down and alamp monitor signal changesfrom L to H.Caution : "HOT" Circuit !Caution : "HOT" Circuit !Check!