Question about BenQ PB7220 XGA DLP Projector Multimedia Projector
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Posted on Jan 02, 2017
SOURCE: BenQ 8700
I had a similar problem with my Benq 8700+. The aspect ratio would show in the R low corner on changinbg resolutions, and would close down to a single line ("anamorphic" for example) which would remain on the screen. I checked the manual (useless) and went through all the set up screens (again useless). In despiration, I decided to try to unplug the projector and did so for 30 seconds to allow the charge to drain from the circuits powering the chips in the 8700+. Upon returning power and restarting, the screen resolution appears/disappears properly once again. Give thjis a try.
Posted on Dec 04, 2007
First, ensure that the button that enables/disables the touchpad is not deactivated if your unit has one.
If the keyboard still works, and you can navigate past your log-in password and enter your windows environment, here is a quick way to check and ensure your laptop still has the correct software driver for your touchpad mouse.
1: Press and hold your windows key, and press the R key.
2: This will open a run command prompt. Type "devmgmt.msc"
3: This will bring up your device manager. It contains all of the software drivers of your unit. If your mouse has a missing driver, it should boldly stand out from the list as an expended menu, within either your mouse drivers, or unknown drivers. You should see a yellow asterisk or exclamation mark next to the damaged or missing driver.
4: If the driver is missing, you can often re-download it from the manufacturers website and have the computer automatically re-install it once you have the driver saved onto your computer.
This solution is only for a single scenario though. Why your driver would have gone missing should it in fact be missing or damaged would still be questionable. It is possible that another program, such as a malicious spyware or virus, could have modified or deleted it. If that were the case, simply re-installing it would not erase the software that is causing damage from your machine.
This is only a software related fix. If it is hardware related, such as the touchpad hardware itself is defective or damaged, then it would need to be replaced by a certified technician, most likely at a service center. I would recommend taking it to your nearest Best Buy and having a Geeksquad agent inspect it, test a usb or ps2 mouse with it, and give you a better idea of which of the two possibilities (hardware or software) the fault is really being caused by.
Hope that helps.
Posted on May 01, 2008
possible bent pins on the cable.
possible video card death in the computer.
but, most likely one of two things can remedy your problem :
- 1 - try to reselect the source on your projector, so that it is detecting the port where your computer is plugged in. if that fails to solve the problem.........
- 2 - right-click on the desktop, and select "properties". then select "displays", then try the "advanced" tab, and mess around in there. can't tell for sure what options you will be facing at this point, since i don't know what graphics card is in your computer, nor do i know how that card is interfacing with your computer.
good luck, and i hope i was able to give you some help!!!!
(funny thing is, i was on here trying to solve a projector issue i am having, and saw your question pop up on the screen, and figured i might be able to help).
Posted on Jan 16, 2009
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