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My mum's computer monitor stopped working after a power cut. When she went to turn it on there was a burning smell coming from the back and the screen stayed dark although the green monitor light stayed on.
The computer works ok with a different monitor so I think maybe a fuse or something has gone in the monitor itself? I know nothing about computers but was wondering if this was possibly the case and if it was an easy job to fix? How do you fix it yourself if it is just a blown fuse?
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Whenever you experience an unusual smell coming from anything electrical, always turn it off and/or disconnect it from any power source until you learn more about the problem. A fire can make make any problematic device seem suddenly unimportant.
An extremely common component in nearly any electronic device is a capacitor. The sizes vary from baby-tooth-sized to bowling-ball-sized found in the power box for most photography studios. The hissing sound is likely caused by one of these. The noisy capacitor may be going bad or another component or an electrical short may be causing it to get too much power. I've attached a video of what happens when capacitors get too much power.
An electrical short could also be causing both symptoms. If the smell is similar to burning organic matter, you likely have an insect (a crispy critter) that can be removed to remedy your problem. However, an electrical burn usually releases gases from burning rubber or plastic and has a distinctly different type of odor. If that's the smell and you are handy with a soldering iron, remove the cover to your monitor and look for signs of burning or overheating. Otherwise, the task should be left to an electronics shop for repair.
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I have a strong suspicion that you have burned a capacitor or two on the monitor. You will need to bring this in to have it serviced as it will require the monitor to be opened up and new capacitors replaced/resoldered.
If the cpu were damaged, you would still get something at boot.
Smell your power supply? Do you smell arcing or burning. If so, it may be your power supply. You can get a power supply tester for about $20. The power supply has several different voltages that it supplies. So, the system might seem to be on but not really.
Depending on the size of your system, you can get a power supply for between $20 and $125.
I am willing to bet that it is the power supply. A cheap power supply can easily burn out.
The problem can be the inverter board or worst case will be the lamps, you need to have spare lamps for testing, that is how I narrow down the problem to find out if the inverter is bad or bad lamps. see example here: http://s807.photobucket.com/home/budm/allalbums
Your monitor is broken. If it is still under warranty see if you can send it back to phillips. If it isn't you will problably have to get a new one. This problem may have been caused by a liquid getting into the monitor.
It is normal for computer monitors to run hot and smell out of the vent holes. The question is how much and how bad.
Under-sized power resistors on the circuit board often smell like burned toast, this is normal. If the smell is very irritating and "aromatic" like burned varnish, however, causing your nose or eyes to burn, than the cause is probably due to an overheated transformer and failure will occur eventually (soon)
(Transformers are made of a spool of wire, insulated with Varnish. When overloaded or shorted inside, they stink)
If you see smoke, stop using it. Otherwise you have nothing to loose, since nobody fixes monitors anyway, but keep an eye on it to make sure it does not cause a fire. Always plug your monitors into a power bar with its own fuse or breaker.
Finally if the monitor does to catch on fire, the more the merrier, since most dealers and manufactures are much more likely to give you a new one, when you rave and rant about a lawsuit for almost burning your house down.
The best time to get warranty is during a sale on Saturday afternoon !!!
More realistically, if the monitor does catch on fire, shut off the power bar, real fast. Then unplug it and throw it in the Bathtub :)
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