Sanyo PLC-XU32 Service Manual
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Contents
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-6- Interlock switchThe interlock switch (SW904) cuts off the AC mains power supplywhen the lamp cover is removed. After opening the lamp cover forreplacing the lamp ass’y, place the lamp cover correctly otherwisethe projector can not turn on. Thermal switchThere is the thermal switch (SW902) inside of the projector toprevent the internal temperature from rising abnormally. When theinternal temperature reaches near 100˚C, turn off the AC mainpower supply automatically.The thermal switch is not reset to normal automatically even if theinternal temperature becomes normal. Reset the thermal switchfollowing procedure.Check the resistance between terminals of thermal switch byusing the tester. If it has high impedance, thermal switch may bein operative.How to reset the thermal switch1. Remove the cabinet top following to “MechanicalDisassemblies”.2. Press the reset button on the thermal switch.CAUTION:Before press the reset button, disconnect the AC cord from theprojector. Circuit ProtectionsThis projector is equipped with the following circuit protections to operate in safety. If the abnormality occurs insidethe projector, it will automatically turn off by operating one of the following protection circuits. FuseThe fuse is located inside of the projector. When either the LAMPindicator or the READY indicator is not illuminated, fuse may beopened. Check the fuse as following steps.It should be used the specified fuse as follows;How to replace the fuse1. Remove the cabinet top following to “MechanicalDisassemblies”.2. Remove the fuse from fuse holder.To install the fuse, take reversed step in the above.Fuse Part No.: 423 022 2102TYPE T4.0AH 250V FUSELITTLE FUSE INC. TYPE 215004FuseThermal switch (SW902)Reset ButtonLine Filter Board |
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