Tip & How-To about Computers & Internet
LCD monitors use a special power supply called a Switching Power supply. Due to the stress these put on the parts inside, the parts called capacitors wear out.
It is a fairly easy job to open a monitor (Power off, eh?). Carefully unscrew the board that has the power cable connected to it. Each of the parts marked C101, C102 etc or similar, is a capacitor.
On the side of the capacitor are some values EG: 1000uF/16V or 470uF 25v or 2200uF 10v. Each of these parts has a special job to do in the monitor. The larger the value, the more likely it fails.
I simply replace them all.
BE VERY CAREFUL in the area of the large capacitor labeled 180uF 200v! (Or similar) This may have a charge on it. I unplug a working desk lamp and place the prongs of the plug across this capacitor before I do ANYTHING. Safety first, eh?
This is a picture of a Dell monitor Power Supply. The black cylinders are the capacitors.
Take care and good luck. I have fixed HUNDREDS of monitors this way.
Posted by John... on
Sep 08, 2012 | Hanns.G Corporation HW173D Monitor
Jun 20, 2012 | Acer AL1917 LCD Monitor
Apr 25, 2010 | Samsung SyncMaster 740N 17" LCD Monitor
Apr 05, 2010 | HP Compaq FP 7317 17" Flat Panel LCD...
Apr 01, 2009 | Samsung SyncMaster 920NW Monitor
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