Warning Temperature And Power Failure Protection; Air Filter Care And Cleaning - Sanyo PLC-XE32 Service Manual

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 cool-
ing 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 following pos-
sible 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)

Air filter care and cleaning

Air filters prevent dust from accumulating on the optical elements inside the projector. Should the air filters become clogged
with dust particles, it will reduce cooling fans' effectiveness and may result in internal heat build up and adversely affect the
life of the projector. Clean the air filters following the steps below.
1. Turn off the projector, and disconnect the AC power cord from
the AC outlet.
. Turn over the projector and remove the air filters by pulling
the latches upward.
3. Clean the air filters with a brush or rinse them softly.
4. When cleaning the air filters by rinsing, dry them well. Re-
place the air filters properly. Make sure that the air filters are
fully inserted.
cAutIoN:
Do not operate the projector with the air filters removed. Dust
may accumulate on the LCD panel and the projection mirror de-
grading picture quality.
Do not put small parts into the air intake vents. It may result in
malfunction of the projector.
recoMMeNdAtIoN:
We recommend avoiding dusty/smoky environments
when operating the projector. Usage in these
environments may cause poor image quality.
When using the projector under dusty or smoky conditions, dust may accumulate on a lens, LCD panels, or optical elements
inside the projector. This condition may degrade the quality of a projected image.
When the symptoms above are noticed, contact your authorized dealer or service station for proper cleaning.
-6-
Air filters