Question about Multimedia Projectors
After 2 years I finnaly solved the problem. There was a flaw in the lamp´s temperature circuit. A technician disassambled my BENQ PB8253 unit and fixed the problem. Charged me US$ 75.00. I´m in Brazil.
Hope this can help.
Posted on Sep 14, 2009
Hi David IB
I've had teh same experience with a BenQ MP720 ( just the XGA version of your Projector )
I queried this with BenQ Engineer in Dubai and he said that it sometimes works exactly like a short on the machine.
If I could give you a tip , If it happens again don't put back the metal cover of the Mainboard it solves the problem 100%
Posted on Mar 27, 2008
Tips for a great answer:
Aug 21, 2011 | 3M MP 7730 Multimedia Projector
Apr 13, 2008 | Compaq iPAQ MP2810 Multimedia Projector
If the lamp usage time has passed 2 000 hours (when LAMP POWER has been set to NORMAL), the projector will switch to standby mode after approximately 10 minutes of operation. The resetting procedure should thus be completed within 10 minutes.
1. Insert the power cord plug into the wall outlet and then
press the MAIN POWER switch.
2. Press the POWER button so that a picture is projected onto
3. Press the MENU button to display the menu screen, and
then press the F or G button to select the OPTION menu.
4. Press the ENTER button, and then press the F or G button
to select LAMP RUNTIME.
5. Press and hold the ENTER button for approximately
3 seconds. The confirmation screen, "LAMP RUNTIME
RESET." is displayed and select OK.
6. Turn off the power.
This will reset the cumulative usage time for the lamp
unit to zero.
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