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Input signal on screen ,screen is black,except for it says no input signal! could this be a bad cpu? what do u think it is?

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Are the lights on, on the computer itself? I would check the cable from the monitor to the desktop. See if any pins are bent. If all looks okay, try a different cable. Also, have you updated the video drivers recently?

Posted on Jun 28, 2009

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No input signal on monitor-not connected to tv-computer works fine except for the no input signal


no input or signal means that the monitor is not receiving any signal from the CPU and if the power light is amber then and the cpu works fine then there could be a problem with the cable connecting the CPU and the monitor ...check the cable.

Mar 03, 2014 | Dell Computers & Internet

1 Answer

Sanyo just says no signal Screen is blaack except for NO SIGNAL moving around all over the screen


This happens when there is no signal.
For instance, if you have the screen set for VGA input, and either the computer is off, not connected, or in screen saver mode.
Check to see what input is selected, and more importantly, if there is a signal at that input!

Feb 24, 2011 | Sanyo Televison & Video

1 Answer

When booting the screen says no signal and the it begins beeping intermedately


I think the graphics card has become unseated as the PC does not need a monitor to start up so there would be no beeps; Here is a list of beep codes with there meanings.
BEEP CODE MEANING POSSIBLE CAUSE
1 Beep (No video) Memory refresh failure Bad memory
2 Beeps Memory parity error Bad memory
3 Beeps Base 64K mem failure Bad memory
4 Beeps Timer not operational Bad motherboard
5 Beeps Processor error Bad processor
6 Beeps 8042 Gate A20 failure Bad CPU or Motherboard
7 Beeps Processor exception Bad processor
8 Beeps Video memory error Bad video card or memory
9 Beeps ROM checksum error Bad BIOS
10 Beeps CMOS checksum error Bad motherboard
11 Beeps Cache memory bad Bad CPU or motherboard

Apr 19, 2010 | Gateway Profile 5.5 PC Desktop

1 Answer

No input signal


that is the problem of cpu not a monitor to confirm disconnect signal cable and power on. monitor will show "no signal check signal cable" it means that monitor is ok and fault lies in cpu .then open the cpu and disconnect ram and listen the beep. contineus beep should be heard then ram is faulty replace it. if no beep heard then motherboard is faulty .

Mar 08, 2010 | HP vs17

2 Answers

I have a blank screen on my HPf1905 monitor. I have a HPm7330n computer. How do I know if its the monitor or the video card? Monitor shows a message no input signal,then goes to sleep mode.


if the message you recieve is no input signal if only means that you have a problem with your video card, the monitor is fine but you need to have your video card check

Nov 21, 2009 | Computers & Internet

1 Answer

Gateway fpd1960 19in. flatscreen lcd monitor has "input analog' across the screen, then goes black. tput new cable on still no picture except when i push input button on the side of panel only for a moment...


checkl in your menu or settings if you have inout it to VGA signal...have you tried other mintor in your current CPU if it works? you can scan the input of the signal from your menu and it should be VGA input.

Oct 12, 2009 | Gateway FPD1960 19" Flat Panel LCD Monitor

1 Answer

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

Mar 27, 2008 | Gateway FPD2275W LCD Monitor

1 Answer

No signal on first boot


I think is a power supply problem,,

Mar 10, 2008 | Nokia 445 Pro 21" CRT Monitor

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