Recently, my new PC monitor turns dark (turns into black screen) frequently. Now, I simply can't use my desktop PC due to this problem. What's the problem & what can I do to fix it? Does it have to do with the power supply of the PC / terminal box? Please help ! ! !
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Re: Monitor turn dark frequently
It sounds like your PC trouble, you may try (it is better to make sure the monitor connect other PC ok)
1) check PC ram, change ram sticks position if there are two ram stick, or change a new ram if only one ram inside. not fix go next
2) check VGA cable connection, reseat the cable. still not fix go next
3) if you use AGP VGA card change VGA cable to onboard VGA interface (setup bios VGA to onboard),
is this helpful to you olease feedback thanks.
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It appears as if the monitor's back lighting is failing. To test the theory, take a bright flashlight and shine it on the lcd monitor screen when it goes black. If you can see the images that were on the screen before it went dark while shining the flashlight on the screen, then the back lighting is failing. Depending on the monitor, it could have florescent or L.E.D. back lighting, but it's usually more economical to simply replace the monitor with a new better performing monitor, than to attempt repairing the back lighting on the failing monitor.
It sounds to me like the picture tube in the monitor is going out. I began to wonder if it was your video card until you mentioned that you used it with various computers. This tells me it's the monitor itself. Unfortunetly, I think your monitor may be due for retirement.
try to start your pc in safemode with vga mode with thjis faulty monitor
hope you know how to do it
start pc (powerr on)
then continuously press F8 key then it will show you boot menu
select safemode with command prompt
then if it show desktop on screen this means your monitor is having problem with resolution try to downgrade your monitor's resolution
rightclik on desktopgo to properties
here you can find screen resolution make it to 800X 600 just for one time
then restart your pc it will auto select proper screen resolution
Monitor going black after a few seconds can be causd by a faulty power supply or inverter. Some monitors have both as one unit.
Sometimes it is basic failed capacitors, After that then I would look at transistors.
The average monitor from 17 to 20 and sometimes the 22s have usually 4
bulbs in them. One bad bulb will also cause the inverter to not fire up.
Bad bulbs usually show pinkish tint, or flickering or are dark at center top or bottom of the display.
This is most probably cause by one or more Faulty Electrolytic Capacitors, I find these are the MOST commonest form of "Fault" in these LCD's TFT's units. I ususally simply replace "On Spec" all High Value Electros, in fact ALL Electro's are suspect and often I just "Shotgun" and replace 'em all. Usually fixes all problems. Always use High Temperature Caps.