Sanyo PLC-WXE46A, Service Manual

Page: 6 / 110

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Circuit Protections
Warning temperature and power failure protection
The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or the
cooling fans stop spinning, or the power supplies in the projector are failed.
- If the WARNING indicator is flashing, it may detect the abnormal temperature inside the projector. Check the follow-
ing possible causes and wait until the WARNING indicator stops flashing, and then try to turn on the projector.
- If the WARNING indicator lights red, it may defect the cooling fans or power supply circuits. Check fans operation
and power supply lines referring to the chapter “Power supply & protection circuit” in the Chassis Block Diagram
section.
Possible causes
- Air filters are clogged with dust particles. Remove dust from the air filters by following instructions in the “Air filter
care and cleaning” below.
- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are
not obstructed.
- Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F)
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top Panel
WARNING indicator