Question about BenQ PB2140 Multimedia Projector
I use a Benq LCD projector to give powerpoint presentations. Lately the projector shuts down shortly after powering up. Just before it shuts down the Power and temperature indicator lights flash in red and the lamp light flashes in yellow. Clearly the problem is temparature related but the fan is running. What do I do? My projector shus off shortly after powering up also. I have unplugged the projector, rebooted my computer and even got a new bulb. Nothing seems to work. Is there a short in projector somewhere??
Check if your blowerfan that cools the lamp - sits in front of Projector is running.
Posted on Apr 01, 2008
Had the same problem with PB2140, during startup the lamp went off and power and lamp leds turned on. This happened after the projector fell down. I read a post there hat mentioned it was probably the power supply so i disassembled the projector. I found out that a small transistor of the power supply was torn away but it was still inside the projector. I found it, put it back and the projector works just fine. Thanks!
Posted on Oct 29, 2008
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