Question about Dell UltraSharp 1800FP 18.1" LCD Flat Panel Monitor

1 Answer

COMPUTER WON,T YURN ON

THE MONITOR SAYS NO INPUT SIGNAL AND THE CPU WON,T TURN ON?

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  • IQUIT May 11, 2010

    The monitor is working normally, the tower is having the problem. What model is the tower. Dell's have some built in trouble shooting inticators:


    1. Power LED, in it's normal state, it will be solid Green or Blue. If it is Amber or Flashing Amber then there is a failure indicated.

    2. Either on the front panel between the USB ports and the Headphone jacks or on the back next to the PS2 ports (Again depending on the model) are diagnostic LEDs. If on the front they are numbered 1 2 3 4, if on the Back ABCD. If the LEDs stay on in a pattern (Example: 24 or such on the front, AAGG on the back) then that indicates a failure too.

    Post the model information and what the LEDs look like when you try to turn on the tower and we'll try to help diagnose the problem.

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First of all,is your power cable properly connected to your system unit.if it is not,connect it properly and turn the system unit on again
secondly,make sure your signal cable from the monitor to the system unit is properly connected
after following these instructions,reboot your computer again.
thank you for consulting fixya with your problems

Posted on Feb 14, 2009

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Posted on Jan 02, 2017

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1 Answer

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Screen will not stay on, getting message no input signal


The message input signal means no signal is being feed to the monitor.
Check the cable use to connect the monitor to the video card.. fix and secure the connection.
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Turn off the CPU disconnect the video card from the motherboard and reconnect.
Try to open your CPU and see if it reacts with your monitor. If nothing happens replace your video card

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My Philips 170C monitor does not work when I turn on. It only says "attention signal off".


it thinks this is no input signal. make sure your computer is on and the cables are secure, switch your screen with a known good one from a freind. this will rule out your computer. if the pc is fgood maybe go into the bad monitor menu settings and make sure the input mode is correct. if this is not the cause you may need to have it repair, your monitor video or display board maybe bad.

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Screen shows message "no input signal" and monitor goes to sleep.


monitor show "no input singnal" error masage when not gating any type of video singnal ,
so if u realy check your monitor wires for correctty plugged in .
then:-

Two possibilities:

either the video/mainboard of the monitor is defective; or
the video card/ CPU is the faulty.

A way to verify is to try the PC with another monitor or to try the monitor in another PC.

thanks

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NO SIGNAL INPUT - message


Hi Rick,
Most common cause of this error is when the video signal cables are knocked off rendering the connection from the monitor to the CPU loose. Turn off the PC and secure all connections. Have you had your computer moved or repaired where you need to remove connections? Some PCs have more than one video cards (video output) and you may have connected it in the wrong video port. You can isolate the problem further by connecting your CPU to a known working monitor (office, freind's, neighbor, 2nd home PC). The other way is to isolate the problem is to connect your problematic monitor to a known working PC and see if video will be displayed. If video is present, your CPU's video card has gone bad or the contacts are not seated properly in the slot. Best Regards

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I think is a power supply problem,,

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