Question about Samsung SyncMaster 940N Flat panel Monitor

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Installation after plugging into tower and monitor keeps telling me no signal. have checked each end of the cable

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Check the pins of the cable to make sure there are no bent pins. Move the cable at both ends to see if the cable is split.
Leave only the monitor connected to the video card, nothing else like svideo.
Open the PC get the video card out and the put it back into place properly, if it's not fixed with screws it could get out of the slot due to vibration or shock.

Posted on Aug 03, 2008

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I have nothing to plug p3 and p4 into when all on no signal


Sometimes if a VGA cable is not screwed into to both your Tower and your Monitor, it can get loose and thus resulting in no signal.
Another cause of a Monitor Displaying the no signal message would be due to the Graphic Card failing, or possibly due to the Graphic Card not correctly being seated.

Other Thoughts
--------------------
Usually P3 and P4 refers to a cable on your power supply that needs to be attach to your motherboard to supply extra power.

Note:
If your P4 cable is not plugged in before turning on your computer, this will also result in your Monitor displaying the no signal message.
Keep in mind though, if your computer has not been opened or is not a custom built PC, you should not have to worry about such issues as your P4 cable should in theory be connected. However I guess safely checking won't hurt anyone.

Mar 30, 2015 | Computers & Internet

1 Answer

I NEED TO HELP WIRING MY COMPAQ HOME COMPUTER


Set all items up ready to be installed Plug in your mouse and keyboard into the back of the tower. If u are using the old style connectors these have pins and will also be colour coordinated so you know where to plug into tower. They will have a notch inside so plug in carefully so not to break pins. If they are USB connections they will be square at the end and u will see where these plug in at the back of the tower these do not have colour coordination as u can plug in anywhere. Next your VGA cable, this is the cable that looks the same both ends with 15 pins in it. One end goes into your monitor and the other into the back of the tower these are shaped so they only fit in one way, again caution that you do not force in as you could bend the pins. Next ensure u have the power leads into the tower and the monitor, these are the cables with a plug on one end and a female 3 hole socket at the other, u will see where these plug into both devices. Next plug into wall ensuring socket is off first Then switch on Switch on your tower....monitor should come on by itself, if not hit the power button on your monitor Voila ...done

Oct 27, 2011 | HP Compaq Evo D310 PC Desktop

1 Answer

VX922 only shows "No Signal" on black screen


The monitor shows no signal probably it didnt detect the tower
Ill be advising you to remoev the cable that conencts the cable
used a clean cot or rug clean both ends of the cable , clean also the area whre you plug in the cable , the ports on the monitor and on the CPU make sure its clean .
Then plugged it in , in case nothing happens
try to used another cable that conenct from the monitor to the CPU
you may aslo try to used other CPU to checked if monitor is working fine or try other monitor to checked if the port on the your CPU is working fine

May 23, 2011 | ViewSonic VX922 19" Monitor Flat Panel

3 Answers

No signal to monitor


Check all conections between the tower and the screen, make sure all are secure, if no joy, unplug the tower and remove the side panel to see if the graphics card is in securely, maybe take the graphics card out and put it back in again to be sure. If you have another monitor or monitor cable try replacing to see if the situation improves.

May 05, 2011 | Acer Aspire M1641-U1521A PC Desktop

2 Answers

Monitor not connecting to tower. it is plug in to the tower. but shows that it is not connected.


three things can be the issue here:

1. No signal from the tower (VIDEO CARD)
2. Bad cable or bent pin on the d-sub 9-15 pin vga connector.
3. Bad signal board inside the monitor itself.

Things to try:

1. another computer.
2. check the signal cable for bent pins.
3. check the video card in the tower.

Before you "think its a bad monitor" you always want to assume the computer first as computers are 9 times out of 10 why the monitor is not coming on such as BIOS errors, Bad video card, bad power supply etc etc.

PLEASE BE CONSIDERATE! When rating and leaving positive feedback for your free answer today.

May 27, 2010 | Sceptre DCL 7A 17" Flat Panel LCD Monitor

1 Answer

I have acer aspire series computer for 2 years.one day when i open my computer my monitor display no signal what are the reasons


Hi! it means that the monitor is not picking any signal from the tower or computer.Check all physical cables first esp the video cable from the monitor to the tower.Check if the computer has power by checking lights, sound coming of the machine. Check if monitor cable is securely plugged in to the vga or hdmi port.If you are using a adapter for that cable try to directly plugin the cable without using the adapter.If still no signal, check if you have a external video card or internal.if you have a external video card and thats the one that youre using then remove the external video card(you need to open up the tower and physically remove the external video card) and connect the video cable to the onboard card then check if will get a signal.hope this helps...

May 20, 2010 | Computers & Internet

3 Answers

My monitor has kicked into sleep mode and won't "wake up".


Unplug all the Cables from Compaq Presario 5103 CL and leave the Keyboard, mouse and monitor cable pluged in.

Now make sure the power cable of the monitor should be pluged in and the power cable of the tower should be pluged in.

Now to check if the montor is fine just unplug the video cable only which will show no input signal on the screen. If it shows this signal the monitor is fine. Plug back in the video cable.

If the monitor is going to sleep mode it might be possible that the old computer ( Compaq Presario 5103 CL ) is in stand by mode. hit any key on the keyboard and it should come back .

If it is not in the stand by mode then do one thing. Check the same monitor with the new computer. If it is working. Perfect ..!

Do one thing now ..!

Unplug all the cables from your old system and then press the power button for 30 sec and let it go. Now plug the keyboard, mouse and the monitor try again.
If it works Perfect. If not ..!

Then you need to open the tower and check on the processor FAN is it running..? If its not running you will not get the display as the fan is responsible for the display on the screen. Otherwise...!

Check the Tower possibly the Tower is not getting the power.

Try these steps and let me know If it works

May 04, 2010 | Compaq Presario 5000 PC Desktop

1 Answer

The monitor says ''NO SIGNAL'' All the tower lights are on and I can hear it satrting up. What should I do?


It is telling you that there is no video signal coming from the video card. Check to see if the cable from the computer to the monitor is tightly plugged in.
If it is and you still get no signal, I'm thinking your video card has gone bad.

Nov 07, 2009 | Acer Computers & Internet

1 Answer

Monitor comes up shows "acer" then says no signal and goes black


The interface between the monitor and the cable might need replacement. Please check it.

Jan 12, 2009 | Acer AL2016 W 20" TFT LCD Monitor

2 Answers

Monitor to tower hook up problems


Open your monitor's cover and plug out vga cable and check continuity of wirs this way-d314a67.jpg

Mar 26, 2008 | Gateway FPD2275W LCD Monitor

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