Sanyo PLC-XF47 Service Manual
Also see for PLC-XF47: BrochureSpecificationsOwner's manualOwner's manual
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Contents
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- 6 -Circuit ProtectionsLamp Cover switchSW902When the lamp cover is removed or no close completely,the lamp cover switch (SW90) cuts off 1V_PFC line tothe PFC unit, and then a projector will be shut down.After opening the lamp cover for replacing the lamp unit,place the lamp cover correctly, otherwise the projectorcan not be turned on.Lamp Cover● Lamp cover switch● Power Failure ProtectionPower failure protection diodes detect abnormal voltage on the power suply circuits or the fan operation stop.When both of the WARNING tEMP. and REAdY Indicators are flashing:READYLAMPLAMP REPLACEWARNING TEMP.WARNINGTEMP.READYLAMPREPLACELAMPFRoNt INdICAtoRSWARNING TEMP.IndicatorREADYIndicatorREADYLAMPLAMP REPLACEWARNING TEMP.WARNINGTEMP.READYLAMPREPLACELAMPREAR INdICAtoRSTemperature switches (SW 903~906)are arranged near the four lamps.Temperature switches will operate, iftemperature reaches 10 degrees.Temperature switches--- open at 10 degrees.SW903 ---Lamp1SW904 ---LampSW905 ---Lamp3SW906 ---Lamp4When temperature switches becomeopen, they cut off 1V_PFC line to PFC(power factor control) unit, and then aprojector will be shut down.● temperature Check of LampsTemperature switchSW906 (For Lamp4)Temperature switchSW905 (For Lamp3)Temperature switchSW903 (For Lamp1)Temperature switchSW904 (For Lamp)- 6 -When the projector detects an internal problem, it will shut down automaticallyand both of the WARNING TEMP. and READY Indicators starts flashing. In thiscondition, the projector cannot be turned on even if you press the POWER ON/STAND-BY button on the remote control unit or on the side control. If this casehappenes, disconnect and reconnect the AC power cord, and then turn on theprojector again to check its operation. If the projector shuts down again or fails tobe turned on, the internal check and repair will be required.Check items listed below;● Power Failure Protection● AC Current Sensor (See the previous page.)● temperature Check of Lamps● Lamp Cover Switch |
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