Question about BenQ PB7220 XGA DLP Projector Multimedia Projector

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Laptop Lenovo R61 is connector to BenQ Projector. Problem is that Laptop desktop can not come up on the Projector. When pressing Fn+F7, desktop can not come op on the projector but error message "Computer 1/YrPbPr1, Source detect" and on the top left corner of the projector "Computer1/YrPbPr1, Auto, 1024x768 59 Hz, Presentation. And then black out on the projector.

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Posted on Jan 02, 2017

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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

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SOURCE: Resetting the lightbulb in my benq projector

press and hold exit button for 3 seconds or more and OSD will pop up, then follow instructions

Posted on Mar 15, 2008

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SOURCE: touch pad quit working, fn-f7 doesn'make a difference

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

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SOURCE: I cannot ger the projector to project the image on the laptop. I have held down the Fn Key and F8 to no avail

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

  • 38 Answers

SOURCE: sony vaio stuck in presentation mode

Right click on your desktop, go to display and change your resolution to one that is more pleasing.

Posted on Mar 25, 2009

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Shut down the laptop. Plug the VGA monitor cable from the external monitor or projector into the blue VGA port on the back of the computer. Turn on the external monitor or projector first, and then the Lenovo laptop. Allow the notebook to boot into Windows normally. Press the "Fn" and "F7" keys at the same time to switch the display from the laptop to the external monitor or projector. Press the "Fn" and "F7" keys again to enable the display on both the laptop and the external display device. Press the "Fn" and "F7" keys again to display screen contents only on the laptop LCD. choose support you need enable tv out on thinkpad

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If your LCD or DLP projector displays no image, this could be a variety of problems. First, check that the projector has power. On the top of the LCD or DLP projector should be some lights. With power, those lights will be on. If it has power, check to make sure that the projector lamp is firing. If so, go to the source. Make sure that it is connected with a VGA cable or USB cable to your computer, or with an RGB cable, S-Video cable or DVI connection to your VCR/DVD Player. From a laptop computer, the VGA cable should be connected to the VGA out connection, and into the VGA in connection on the projector. Are both ends tight?

If everything has checked out so far, the solution probably lies with the external monitor port. Check this by holding the Fn key on the keyboard, then press the F7 key. (On some computers, the key might be F5 or F3. Try these if F7 doesn't work) Each time you press the Fn / F7 combination, you will cycle your display through the following settings:

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