PB LCD Monitor powers off after 5 seconds

Packard bell / 900w
May 29, 2010 at 07:06:16
Specs: Windows XP, 128mb
My LCD monitor comes on briefly with full clear
picture when the power button is pressed but
then switches off . The monitor remains on
standby with no picture at-all. What is the fault?
Is it serious or repairable?

See More: PB LCD Monitor powers off after 5 seconds

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#1
May 29, 2010 at 07:35:16
Probably nothing at all wrong with the monitor. More likely your graphics hardware not sending a signal to the monitor, probably because it is overheating.

Plug another monitor in if one is available. If the same thing happens that will confirm it.

Stuart


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#2
May 29, 2010 at 07:41:51
Not sure about that because it happens when the monitor is
disconnected from the PC. I tested the monitor on its own with
the VGA cable removed. I suspect an electronic fault with the
monitor. For example a faulty inverter or backlight can be
replaced fairly easily. So am hoping it is something of that
nature. I read another forum and that suggested faulty
capacitors.

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#3
May 29, 2010 at 08:44:13
A monitor disconnected from a computer will behave in exactly the way you describe. It is the lack of a signal from the graphics card that puts the monitor into standby.

If it were a faulty inverter or back light you would get nothing, just a blank screen as soon as it was turned on. As you get a full clear picture, if only briefly its a good indication the monitor is working fine.

Stuart


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Related Solutions

#4
May 30, 2010 at 09:57:54
I appreciate your help. Thanks for your effort and time. However I
think you dont fully understand the fault. If connected to the pc
the monitor shows the desktop and GUI for only 5 seconds and
then switches to standby with an amber LED showing instead of
blue.
If disconnected from the PC it does the same thing with the
screen illuminating faintly for 5 seconds and then going to
standby. I am pretty sure that there is a fault with the monitor.

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#5
May 30, 2010 at 13:37:07
Stuart, you may be right after all. Maybe there is no fault with the
monitor. I read another forum earlier and the symptoms I have
described can be caused when the monitor is set for DVI. It is
expecting a DVI signal. If it gets a VGA signal it switches to
standby. That could be the cause. AM going to test it at college
recieving a DVI signal through a DVI cable. Hopefully that will
solve it.

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