Hi,
I have (2) Infocus LP 350 projectors. The bulb was burned out on
the first one when I got it on E-bay. I have replaced the bad lamp with a
new lamp -- it did not work; the new lamp never lit up?
Then I replaced the lamp with the working lamp from
the second LP 350 projector that works. Since the projector turns off the lamp
after 2050 hours of use, I followed the procedure to reset the
recorded lamp hours (hold down left " VOLUME - " button, followed by pressing
menu button for 5 - 10 seconds). However, neither of the good lamps work in the
first projector.
A while after turning power on, the green status LED turns to orange
and blinks -- which is the indication of a lamp with over 2000 hours of service.
To confirm the procedure, I reset the lamp hours on the second projector. So I know that I
am following the correct procedure to reset the lamp hours on the first
one.
If I am interpreting the symptoms correctly, the projector responds as if the lamp is still bad, but I know it is NOT because I swapped the "new" lamp with the working lamp in the second projector (and the new lamp worked in second projector). So, the possibility of a second bad lamp is eliminated.
The status check of the recorded hours used requires a working lamp because you
have to go to the projector status information under the display of the
menu. Since the lamp does not work, I cannot confirm the reset of the lamp hours ...
I took the projector covers off to see if the "VOLUME -" switch was not making contact (which would create the condition where the lamp hours could not be reset). I was able to confirm that the "VOLUME -" switch did make contact and close with a DVM (ohm meter). I also looked for loose connections, and found none.
When I put the covers back on, the projector behaved in the same way. It is as if the projector is NOT enabling power to the lamp after the initial start up delay; instead the status LED changes from GREEN to blinking ORANGE. The projector responds to changing it to standby mode when initially started -- GREEN to ORANGE status light, not blinking. So, I am not sure what to try next ..
Can I force a "general reset" with a "hidden button", or by removing the battery under the projector lamp?
Would appreciate advise/help from anyone with similar experiences.
Thanks! Jerry
That model has a history of bad ballasts. you'll need to replace it.
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Projdoc: Thanks for your suggestion!! I have checked further and NO power is being delivered during lamp warm up time, so your suggestion to replace that ballast makes sense.
Does anyone have any recommendations for a source for parts numbers so that I know what to order and a source for parts so I have some idea where to order?
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