Lamp didn't strike
lamps are affected by strikes. each strike erodes a part of the anode.
so in essence, the lamp wears out. However a Xenon has a much longer
hour life as once it is running, it cares "relatively" little about how
long. SO for commercial units, this is an advantage. there are also
larger potential issues about colour stability over life.
with UHP, they care only minimally about strikes, it really is not even
a strike, so while frequent on and off can kill it early, with normal
usage, you are going to be fine. However with a UHP, if a lamp runs for
longer times... then you have issues. THe way i had it explained to me
was as such;
With a UHP, it gets up to proper operating temp in about 5 mins. once
it is there... it SLOOWWWLLLLLYYYYY continues to heat up. After about
2-3 hours, it starts going outside the nominal operating range. once it
does so, it starts to degrade the lamp. thereby lowering life
expectancy. if you shut it off after about two hours or so and let it
cool for ten mins then do it again for two hours... you are in a much
better place. In a grand scheme, apparently if you run the proj for an
average of 4-6 hours every time, then expected lamp life goes to about
50%. THis is very rough and in a general sense so just take it as
TIPS TO EXTEND PROJECTOR LAMP LIFE:
Lamp life for a projector will vary based on many factors including
application, installation, intake of cool air and exhaust of hot air,
usage, and proper maintenance. Heat buildup can reduce lamp life and
even damage your projector. Here are some tips to help your projector
lamps last longer.
Once you turn on your projector, wait at least five minutes before
turning it off to allow the fan to properly cool the unit. After the
fan has cooled your projector, you may unplug it and store it as
Do not obstruct the air intake or exhaust vent. Paper should not be placed on top of a projector, or where vents are located.
Keep the exhaust vent at least two feet from any object.
If the projector is built into a compartment, wall, ceiling or shelf
mount, the minimum distance requirement (usually at least two feet)
stated in your owners manual must be maintained.
Clean the projector's air intake filter every three to six months -- or more frequently -- based on your operating environment.
Do not move your projector until the lamp has cooled (about five minutes).
Run your projector for two weeks and/or 20 hours shortly after your
purchase. If the lamp is going to fail, it will usually occur within
the first ten hours of operation. Lamp warranties typically last just
90-180 days from the date of purchase, rather than the first
When you purchase a replacement lamp for your projector, remove the
existing lamp and use the old lamp as your spare. If your projector is
new, test the original lamp for the two weeks/20 hours before removing
and storing as a spare.
I hope the info. which i have given you solves ur problem if not i am sad to say you have to get it repaired..
Please don't forget to rate me as fixya..
ASK Proxima C170...
on Feb 12, 2008