Question about Office Equipment & Supplies

1 Answer

Cant find source on OPTOMA EP774

My OPTOMA EP774 keeps saying cant find source..
I tried to activate the secondairy monitor but it still cant find source
i'v tried an other VGA cabel but still doest work...

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 2,237 Answers

Make sure the resolution matches.

Posted on Dec 23, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

My Optoma EP 719 DLP shows a message saying D-Sub 2 source block, my remote is missing and it wont bring up the menu when i press the button on the device

I would look and look and look for that remote .unless your dog ate it then I would try the manufacturer's website tech support

Apr 25, 2015 | Optoma Office Equipment & Supplies

1 Answer

Optoma lamp led flashing

the are a few reasons for this but the most two common ones are the intermitant lamp failure or colour wheel tracking rotation sensor when you startup the projector the lamp should drive half brightness approx then you should hear the colour wheel drive if it is at this point the projector goes off and restarts the chances are it is dust on the colour wheel sensor.Rmove sensor this has three wires going to it supply and pulse wire it is mounted on a small pcb board with one screw remove the screw and board complete with sensor and clean the sensor with a cotton bud dipped in spirits then wipe over with clean cotton bud.This usually solves the problem.


Apr 17, 2013 | Optoma EP774 Projector

1 Answer

Have an optoma 33 projector. Get vertical lines on the screen? Any suggestions?

It could be the display source, such as the computer or laptop connected to it. Try another source if it is possible, if it still isn't working than it is best to get it checked by a professional because the hardware could be broken

Jan 06, 2013 | Computers & Internet

1 Answer

Pico 301 turn on but can not be locked on any source it just keep running the auto source finder on and on endlessly

If the set has a source button on the set itself try to defeat it (unsolder) to see if it is causing this--more common than most people think.

Dec 03, 2012 | Televison & Video

1 Answer

New beamer optoma hd65,message: no source found

adjust the resolution to match. also, make sure the monitor port is activated.

Nov 04, 2009 | Optoma HD65 DLP Projector

2 Answers

Projector constantly searching for source

try activating the output of the laptop:


Jun 12, 2009 | Optoma EP771 DLP Projector

1 Answer

Whhit line on the middle of the screen

send it in to optoma. possibly a colorwheel or main board issue.

May 19, 2009 | Office Equipment & Supplies

3 Answers

Optoma EP716 source detection

It sounds like your module that controls the menu and the "cycling through" may not be in sync or may needs to be replaced. I had times have had to make sure the Optoma EP716 had to be first plugged in and "on" before the PC can communicate with it. Once the Optoma is "ON", then turn your PC/Notebook on. If there is no connection via USB, "S" cable and/or your VGA (be sure your PC/Notebook is set to have the external VGA "active"). Let me know if this works or not. Then we can try to move forward with other options for troubleshooting. long have you had this multimedia and how many hours of use does it have?...JGUAM

Oct 21, 2007 | Optoma EP716 Multimedia Projector

Not finding what you are looking for?
Office Equipment & Supplies Logo

Related Topics:

154 people viewed this question

Ask a Question

Usually answered in minutes!

Top Office Equipment & Supplies Experts


Level 3 Expert

8073 Answers


Level 3 Expert

2237 Answers


Level 3 Expert

81400 Answers

Are you an Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides