Table of Contents
Advertisement
Circuit Protection
Lamp cover switch
The lamp cover switch (SW880) cuts off the drive signal
to the lamp circuit when the lamp cover is removed or not
closed completely.
After opening the lamp cover for replacing the lamp unit,
place the lamp cover correctly otherwise the projector can
not turn on.
door switches for automatic slide shutter
The projector provides 2 door switches against an accident
of the automatic slide shutter.
The door switch-A(SW8801) turns ON when the slide
shutter is opened.
The door switch-B(SW8811) turns ON when the slide
shutter is closed.
If the slide shutter stops half-open after turning on, the
POWER indicator will blink orange and the projector goes
to stand-by mode after cooling. In this case, press the
POWER ON/STAND-BY button again.
If the slide shutter is closed during operation, the projector
is automatically turned off for safety.
In this case, be sure to check the position of the slide
shutter. After opening or closing the slide shutter
manually, press the POWER ON/STAND-BY button and the
projector turns on.
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 following
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 power Supply Lines section.
Possible causes
- Air filters are clogged with dust particles. Remove dust from the air filters.
- 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 5˚C or 41 to 95˚F)
door switch-A
door switch-B
- 6 -
Lamp cover switch
Slide shutter
Hide quick links:
Advertisement
Table of Contents
