Question about NEC MultiSync MT830 Multimedia Projector

1 Answer

Projector vertical running lines

I have an epson 821p mounted in ceiling a media center at my school. The projector is wired to the wall I have two computer lines going in vga mode, I have then the wire coming out to the ceiling and going into the projector. We have a company that comes out and installs them this way for are whole district.

I have other electronics running thru the ceiling, heating cooling, lights, infared sensors for alarm. I have tried several projectors and get the same results I have lines continually running thru the screen. Is something interferring? They are white lines, no color in them. The run vertical and scroll thru the whole screen. The sound seems to hum too. Any assistance would be greatly appreciated

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 563 Answers

Hi there

This is definatelly a interference from a power cable. If any of your signal cables in the ceiling is closer that 5cm to one of those , you will get interference.

The Company that did the installation should know this and I would suggest you call them and tell them that they should sort it out. They should either move the cables or insulate them by means of conduit.

Posted on Apr 16, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

MY EPSOM PROJECTOR IMAGE IS UPSIDE DOWN. WHAT DO I DO?


Hi, Your projector is probably set for ceiling mount which will project an upside down image because the projector is normally mounted upside down when installed on the ceiling. Go into the menu and select extended then select projection then select front. That should return the image to right side up.

Aug 22, 2011 | Epson EX30 LCD Projector

1 Answer

Upside down picture


turn the projector up the other way,

or

Press the Menu button.

Select the Advanced menu. You see the features and their settings on the right side:

Press Enter and use the directional buttons and the Enter button to set the following option:


Projection

Front: Projector is in front of the screen

Front/Ceiling: Projector is in front of the screen, mounted upside-down from the ceiling

Rear: Projector is behind the screen

Rear/Ceiling: Projector is behind the screen, mounted upside-down from the ceiling

Feb 22, 2011 | Epson EMP-54 Multimedia Projector

1 Answer

Wanting to mount this projector from ceiling. How and what bracket should i use.


get the epson parts

ceiling mount ELPMB35
ceiling mount adapter ELPMBAPS

Feb 22, 2011 | Epson PowerLite 50c Multimedia Projector

1 Answer

How do I flip the image on my Epson EMP 30 projector for ceiling mounting please?


Press MENU on the remote control (as show on picture below)
the menu window displayed
Press down arrow key to select ADVANCED
press ENTER on the remote control
use down arrow key to select ceiling (as show in picture)
press RIGHT arrow key to select OFF to ON status
press MENU key to exit menu
(the projected images are horizontally and vertically reversed.)
good_help_4.pnggood_help_5.png

Feb 13, 2011 | Epson EMP 30 Multimedia Projector

1 Answer

My projectors image is upside down. how do i fix


Go to Menu> Extended> Projection> select Front ( to project from the front of the screen ).Front/Ceiling ( If the projector is mounted upside-down from the ceiling ). Rear ( to project from behind onto a transparent screen ).Rear/Ceiling ( to project from behind when the projector is mounted upside-down from the ceiling ).

Apr 11, 2010 | Epson EX30 LCD Projector

1 Answer

How can i flip the screen up side down on the projecter


Go to Menu> Extended> Projection> select Front ( to project from the front of the screen ).Front/Ceiling ( If the projector is mounted upside-down from the ceiling ). Rear ( to project from behind onto a transparent screen ).Rear/Ceiling ( to project from behind when the projector is mounted upside-down from the ceiling ).
Or you can hold down the [A/V Mute] button for about 5 seconds to change the projection setup from Front to Front/ceiling or Rear to Rear/Ceiling.

Mar 31, 2010 | Epson EMP-S4 LCD Projector

1 Answer

Epson 77c Projectors occasionally freeze - controls don't work


this is maybe overheating problem, check that the fan on it is working
Fosg2000, please Rate me

Mar 16, 2010 | Epson PowerLite 77c Projector

Not finding what you are looking for?
NEC MultiSync MT830 Multimedia Projector Logo

313 people viewed this question

Ask a Question

Usually answered in minutes!

Top NEC Multimedia Projectors Experts

Electro Med Services...
Electro Med Services...

Level 3 Expert

5612 Answers

The Knight
The Knight

Level 3 Expert

68157 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a NEC Multimedia Projector Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...