Optoma EzPro 756 Multimedia Projector "black lines" Questions

...lines in image w/ 2 inch black bar horizontal. these thin white lines are vertical on image and are in proportion to each other. I tapped on the unit and the lines went away then came back shortly. ...

...help we have a projector in focus lp340,and the picture is in black white with 2 black lines thanks there may be the problem with the Tunnel. it will be in the Optical Unit. That needs to be

we have a black line on the left site... We have a black line on the left site the light tunnel needs to be adjusted or replaced if it collasped.

Black and white vertical lines Screen has a black and white vertical line Make sure the unit is not full of dust.... when it gets hot the video goes screwy...

There is black line across the screen InFocus does all their own repairs, at least in Canada. This may not be a generic problem. For a black line to occur on a three panel LCD projector, the problem ...

...black lines: projector TDP-ET20 I just bought this projector a couple of days ago, it was working fine until i plug in my Macbook pro with an HDMI cable. Ever since that operation, there are thin ...

...black lines with svga cable? When i use a regular vga cable the picture is fine but when i swapped it out for an svga cable black lines appeared on the screen! especially on a white backround! is ...

...black vertical lines? FAULT: If lines are flickering with black and white and there is no data in line its mean the DLP unit is faulty. SOLUTION: the only solution is this that you replace the DLP ...

black line in middle of screen i have a black line that is in middle of screen of projected pix. what is this caused by. Hi there This is a common Mainboard problem on Projectors and the board will ...

black lines appear and as it runs they either grow in width or decrease or sometimes disappear and appear again. This also happens when there is no external input, just the blue default startup screen