Question about Dell 4100MP Multimedia Projector

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Dell 4100 mp projector

I can only get the screen that says Searching for signal. I've tried a different computer, cable, everything.

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Hold down the Fn key and press F8 at the same time. This should do the trick.

Posted on Apr 06, 2009

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If its a lab top it must be on its power cord to make the projector work

Posted on Sep 28, 2011

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1 Answer

When my computer says check signal cable what does it mean?


Your monitor is telling you that it thinks it is not receiving a video signal from the computer. You need to verify which of three components is not working, the computer, the cable, or the monitor.

The first thing to do, obviously, is to check that the cable connecting the computer to monitor is good. You will need some extra components to do the checking. I'm going to assume that the cable is detachable at both ends.
First you can try replacing the cable with different one. If the replacement cable works, then it's the cable.
Secondly, you can try different monitor. If you connect this in place of the first monitor, and it works, it's a faulty monitor (needs repairing or replacing).
Third try a different computer with the original cable and monitor, if it all works it looks like the video on your PC has malfunctioned. (This might also be your conclusion if a system comprising a different cable and monitor fails to work with the original PC)
You might just be able to verify the cable by testing the connectivity of all the wires in the cable with a meter, if you knew the pin out of the cable at both ends.
If you find out the computer is getting a signal out, there could be many causes for that, each having its own solution (or not as the case may be)

12.April.2014

Aug 08, 2012 | HP Computers & Internet

1 Answer

Samsung Syncmaster 2333


Check signal cables means there's no signal on input. If your PC still shows up on a different monitor then it's a time to replace a mainboard in your monitor.

Jun 03, 2017 | Samsung SyncMaster 2233BW 22" LCD Monitor

1 Answer

The display on screen says check digital cable... i replace the one which is working with another monitor


If it's giving you a missing signal and you've tried a different cable it would be in your best interest to try a different monitor. It's very possible that you have a either a bad graphics card or a bad monitor.

font.f1 {font: 12.0px 'Lucida Grande'; color: #000000} I hope this helps! If this did help you, please give a thumbs up!

Thank you for choosing FixYa!

Jun 29, 2011 | Samsung SyncMaster 910T 19" LCD Monitor

1 Answer

Power comes on - screen says NO SIGNAL. Have already checked cable line with another TV and it works fine. Have we hit something on the remote that has put it into that mode?


The only reason your TV would say "no signal" is that it's searching an input for a signal and not finding it. That being said, Yes, You've probably hit the "input" button on your remote. Easily fixed by selecting a different input or changing the channel on the television.

May 03, 2011 | Televison & Video

1 Answer

I have an 52 inch lg5000 tv . it supposed to be full hd. i ve tried to connect my play station 3 via hdmi cable but the only thing i get is the no signal sigh on the screen i ve tried everything . is my tv...


plug the ps in with power cable only no hdmi. When turning on Hold down the power button until you hear a second set of beeps you have now reset the video settings. Turn the console off and plug in your hdmi and switch back on it should now work.

Jun 10, 2010 | Sony Playstation 3 (PS3) Console

1 Answer

Searching for signal


The problem is with the computer, not the projector.
There are special function keys, generally with blue lettering along the top row of your keyboard. Find the one that looks like a double screen or says "CRT". Also locate the blue function key [FN], probably on the lower left on the keyboard.

Press, and hold, the [FN] key and press the [CRT] key to change to dual screen.... and wait for several seconds for the projector to detect it. If it still doesn't work after you have waited, press the key sequence again (there are 3 different screen settings).

1. Computer Screen only (normal)
2. Projector Screen only
3. Both Computer AND Projector screens

Sep 24, 2009 | Dell 2100MP Multimedia Projector

1 Answer

Infocus X1 picture freezes and dissapears and then comes on again


your display settings may be off, so change settings to factory reset and you may have to drop the resolution on your computer. you may also have a bad cable, so try a different cable.

Jul 03, 2009 | InFocus X1-RE Projector, Factory...

1 Answer

XBOX 360. No Audio or visual,yet everything else seems okay


are you using and hd cord if so check your plugs make sure you are in the right slots then if hd cords there is a switch on the plug in to the xbox that needs to be switched to the hd setting

Jun 18, 2009 | Microsoft Xbox 360 Console

1 Answer

Boot up computer. Nothing comes up on screen. Get a message:"information. No input signal." Everything is plugged in correctly.


  • check the cable on the monitor screen
  • if after removing the data cable from the computer and it has no vertical color screen then
  • try other data cable
  • try other monitor screen

May 02, 2009 | Computers & Internet

1 Answer

Samsung Syncmaster 20 inch no signal


It is a fault with your CPU's Ram module(90%). Rest goes to motherboard/Graphics card.

Dec 17, 2008 | Computers & Internet

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