Had the screen turned off and when pressing the green button, a snapping 'plick' was heard and an very tiny puff off smoke came from the ventslots at the top on the backplane, verticly above the buttons.
The screen is three years, and one month, of course, old. Can i open it, and in yhat case how, and look for any components likely to have falied or is everything integrated in cicuits?
I had the same problem as lasselson. The monitor apparently failed with a "bang". Followed instructions on YouTube to get the case open. C605 capacitor had failed in exactly the way described, and the main fuse (T4A 250V HBC 20mm x 5mm) was blown. I could find no other damage at that point so replaced the fuse (in a holder!) and cap, put the cover on, applied power and "Pop!".
Had another look and found that IC651 had part of the top blown off. (The big resistors standing off the board all seem to have survived though).
Amazingly I found the top of IC651 and with a tiny dot of superglue, put it back in its original location. Had to scrape off laquer and clean the residue with isopropyl alcohol. This revealed the ST logo and figure "6561". Did a search and I'm pretty certain this is the L6561 Power Factor Corrector:
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Try a basic reset which won't affect your data. With it off, hold down the power button for 8 seconds, release and then press power button again once firmly. At worst, a factory reset which will erase everything putting it back to how it was new, will resolve the issue. On the back, bottom left, you'll find a small hole. Enter an unfolded paper clip or similar and press down until you hear a click. The kobo will rest itself.
Replace the video cable or hdmi,depending on which you may be using. Some of the small wires in that cable may have snapped. Another suggestion is to take it into a repair shop that gives free examinations or diagnosis, because one of the small leads going from the screen to circuit boards lining the display, may have broke, unfortunatelly this may lead to you having to buy a new display. Most of the time it can not be reconnected due to many wires in the same ribbon are to close. You may also have to purchase a new screen from the factory.
Your power supply board is dead, you know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
I assume this is related to your LCD monitor.
I think you mean dead pixels. The LCD monitor has tiny pixel elements, one for each red, blue, green color and each one of these colored pixels are turnes on by a transistor. When a transistor fails then the colored pixel it controls does not light up. This is a dead pixel and it shows up as a tiny black dot.
If the screen displays a blue screen, a dead blue pixel will appear as a tiny black dot in the blue screen.
You normally would not notice a few dead pixels unless they are grouped together.
believe me u cannot fix this problem you can only make ti go away, when monitor goes blank, hit windows button on keyboard and programs will open, on the TASK BAR you will see blank page windows, double click it away, usually last all day, regard robert
Unplug the monitor from the power
Unplug the monitor from the computer
Plug the monitor back in.
Try turning it on.
DOES IT SAY "NO SOUCRE DETECTED" or soemthing like that???
if it DOESN'T it means there is something wrong with the computer.
if it DOES:
plug it back on to the computer, turn the computer power off.
Press and hold the power button on the computer for about 15 seconds.
Plug the computer back on.
Try turning the computer on.
if it's not turning on again there a problem either with your monitor cable, or the plug, or the video card plug. It is unlikely that your video card is broken if you hear no wired series of short and long beeps when you try turning the computer on.
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Be very careful! Some monitors/TV's have 30,000+ volts DC in them even when not plugged into AC house current. The crack/snap sound was most likely an electrical component breaking down and shorting against the metal of the case of the monitor. I would take the monitor to an authorized repair center because the danger of getting shocked/killed is very possible while working on this type of problem at home.