Selasa, 11 Februari 2014

LCD monitor exploded?

Q. This was over a year ago but I was wondering what it could of been, this also happened to me on a very old CRT monitor. I bought a new LCD 19inch monitor for my computer and after 3 months of use, the screen went black and it a loud popping noise came from the back, and then each time I plugged in the power it smells so bad, just wondering what this could of been and what caused it.
It had been on for 9hours at the time, im not looking for a fix though as I got it replaced
No fire or smoke, just bad smell

A. Power transformer for the LCD likely went bad, the windings shorted out, and the transformer cooked itself.

The LCD uses a transformer and an inverter to reduce the voltage and convert it from AC to DC.

You are actually really lucky it did not catch on fire. I would have instantly called the manufacturer and complained, and reported it to the US CPSC.


My 19 inch LCD monitor has "stuck Pixels" how can fix this?
Q.

A. If your LCD screen has a stuck or dead pixel , it's usually malfunctioning because the liquid in the liquid crystal display (TFT LCD) has not covered the whole screen. This can be easily fixed.

Steps
Turn off your computer monitor.
Get yourself a damp cloth, so that you don't scratch your screen.
Apply pressure to the area where the stuck pixel is. Do not put pressure anywhere else, as this may make more stuck pixels.
While applying pressure, turn on your computer and screen.
Remove pressure and the stuck pixel should be gone. This works as the liquid in the liquid crystal has not spread into each little pixel. This liquid is used with the backlight on your monitor, allowing different amounts of light through, which creates the different colours.



Tips
Many people report success with this technique but these instructions won't work in every case.
These instructions will fix "stuck" pixels, not "dead" ones. Dead pixels appear black while stuck pixels can be one constant color like red, blue or green.
An alternative, but similar technique involves gently massaging the stuck pixel on your screen. Another method involves playing a video (available for download in external links below) which changes colors 30 times per second.
If these instructions don't work, you can hopefully get the monitor fixed through your manufacturer. Follow the link at the bottom of the page to the Tom's Hardware article on how many pixels it takes for your specific manufacturer to replace the whole monitor. If your monitor falls under the specifications of replacement, get in contact with the manufacturer to set up replacement plans.
Gently tapping the area can also work in some cases.
You can find a program for removal at this site: http://fixdeadpixels.uv.ro. Put the colour square from the "dead pixel remover" on the actual stuck pixel from your screen.



Warnings
Do not attempt to open the monitor as it will void the warranty and the manufacturer will not replace it.
Make sure you don't get any electrical equipment wet or it may break.





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