my moniter shuts down while cpu is on.

June 24, 2017 at 11:08:25
Specs: windows 8 x82, intel dual core 2.70ghz, RAM-2GB
my moniter shuts off but cpu works on the same time. keyboard and mouse works as i tried alt+F4 to shut down when display was off.
The monitor started and worked fine when i removed the power cord (of moniter only) and inserted it again after 5-10 seconds. But after 2-5 mins it again repeated the problem.
Also when i remove the power of moniter only and insert the power cord again. If i keep a gap of 5-10 sec in the process of removing and insertion only then the moniter works. If i do it without any time delay it remains in off condition without any effect.

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#1
June 24, 2017 at 11:16:31
By CPU I take it you mean your computer? The CPU is the chip inside that does all the work...

How old is the monitor - and make/model?

Have you another monitor which you can connect and see if that does the same?

As tt's only the monitor which appears to actually go off - powers down completely(?) - I suspect the problem is the monitor in question; probably its power supply...


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#2
June 24, 2017 at 19:15:46
Sounds your monitor has a hardware problem. Maybe power unit problem.
Have you tried another monitor? To exclude the "CPU" having problems?

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#3
June 25, 2017 at 08:01:24
@sluc
I replaced the power cable to cross check the defects in power cable BUT POWER CABLE IS FINE as i tried the cable on other devices like my cpu.
i also cross verified my UPS by connecting my computer to a simple household 220v ac supply.
Unfortunately i dont have another monitor or cpu to cross check the defects
@trvlr
Yes you got it by 'cpu' i mean the whole lot inside the cabinet like hard disk, ram, motherboard, optical drive...
my computer &monitor build year is 2009.
also it's a dell brand monitor build by LG

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#4
June 25, 2017 at 09:04:50
Can you nip over the a chum and connect "your" monitor to his/her computer; and thus test "your" monitor that way?

If it is the monitor (the PSU possibly being prime suspect) then the monitor will misbehave as when connected to your computer.


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#5
June 25, 2017 at 22:35:24
i had this idea previously. but unfortunately there is no one who can help me to cross verify by connecting his devices (cpu or moniter)

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#6
June 26, 2017 at 04:09:14
I was not pointing to the AC cable connecting your monitor to the UPS or wall plug.
My concern is the power unit where the AC cable is connected to, either an external brick or build-in to the monitor.

Do you have a TV with compatible video input? VGA?
Connect your CPU (box) to it. If the TV shows stable video signal, than the problem is your monitor.


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