Question about BenQ PB7220 XGA DLP Projector Multimedia Projector

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Projection display dark on left side

The 1/3 left side of the projection display has a line or "crack" with everything to the left dark as if there is a mirror inside the projector that is cracked?

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Re: Projection display dark on left side

It sounds as if your light tunnel has come loose and most of the time it has to be repaired by a technician, Like myself or someone in your area. I am new to this site and thought i would try out my skills here and see if i could help some people. Let me know if that helps. You can also ship it to me and i can take a look at it and evaluate it for you. I repair projectors for " Luckstrike here in Louisville, Kentucky. email me if you need more info or call 502-773-7969 and ask for Jay

Posted on Jan 31, 2008

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Dark Spot on Lower left screen

1,white spots appeared on screen,means the DMD is broken,you need a new DMD. USD150-200
any questions, feel free to ask me
have a nice day!
Jerry Lampdeng Limited

Feb 03, 2014 | Acer H5360 3D DLP Projector

1 Answer

My image is upside down after I mounted my projector to the ceiling

There are projection mode settings which will allow you to adjust the orientation of the image. Adjusting this setting will rotate the image so that it is not displayed upside down when attaching the projector to the ceiling.

To activate this setting:

  1. Press the Menu button on the projector.
  2. Using the Arrow buttons, select the Image icon on the left side.
  3. On the Image screen under the Projection label, select the icon that represents ceiling mounted projection. Note: You may see both front and rear ceiling mounted projection modes. You may choose which ever best suits your needs.
  4. Press Menu on the projector controls to exit the settings menu.

Nov 19, 2011 | Multimedia Projectors

1 Answer

How to change setting picture just opposite

If opposite means that you want to rotate the image or picture for projector mount in the ceiling.

KEYS location: (keys are located back side of the projector there is 2 keys 1 for menu and second is a joystick witch have 4 arrow keys and center press is a enter key)

Press MENU button to display the menu screen.
then use joystick UP and DOWN to select the OPTION menu. Press joystick for ENTER to display the option screen. Then press joystick UP and DOWN to select INSTALLATION.
Then press joystick RIGHT and LEFT to select your required image rotation there is four type of rotations.
3.REAR DESK (A translucent screen is required for rear projection)
4.REAR CEILING (A translucent screen is required for rear projection)

If opposite means negative to positive so there is no any setting in your projector witch is chang your picture or image positive to negative.

Jan 21, 2011 | Panasonic PT-LB60NTE LCD Projector

1 Answer

The image from my cp x251 is uneven the top and right side are angled but the bottom and left side are straight and perfect on the screen.

this is a common problem with projection systems this is the reason that most screens are lined with black felt its non-reflective and works great to hide uneven edges also try balancing out the difference with the keystone adjustment


Feb 08, 2010 | Hitachi CP-X251 LCD Projector

1 Answer

Vp800 LCD Projector has dark blob on display.

blow out any dust with canned air. chances are there is an object blocking the image. or there is a crack or burn spot on the 2nd fly-eye lens (diffuser). the first one is right next to the lamp (if you remove the lamp, you'll see it). the second is right on the other side of it.

Jul 14, 2009 | Multimedia Projectors

1 Answer

Someone changed a setting

The setting is in the Menu. It sounds like you went to the "Image" section which lets you make the adjustments you list. Try the "Source" menu, then "Mirror". That's where you will find options for Rear Screen Projection, which makes the image backwards.

Feb 05, 2009 | BenQ MP610 Multimedia Projector

2 Answers

Optoma EP721 - reverse image

Go to menu, select Projection and choose your desired projection scheme (Desktop, ceiling mounted, behind the screen, etc.)

Jun 03, 2008 | Toshiba TDP S3 Multimedia Projector

1 Answer

Projection horizontal lines and flickering

This is the problem I had with a couple of my projectors, one of them I just replaced the bulb and the other needed whole new brains (controller board)

Feb 01, 2008 | Dell 3200MP Multimedia Projector

1 Answer

Projection Problem

send it in for repair. one of the diffuser lenses, the lcd panel, or the lcd frame are loos and need tightening.

Dec 19, 2007 | Boxlight CP 10t Multimedia Projector

3 Answers


The Stress of impact on the imaging forming unit that is directly behind the projection lens has a flat glass surface. If it is cracked the stress cracks would project with any image because they are on the same plane as the image

Nov 22, 2007 | BenQ MP610 Multimedia Projector

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