Question about HP w2207 Monitor

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HP W22 lcd monitor turns on and off

This monitor turns on and off. I tried CRT monitor on same computer and CRT monitor works just fine. I tried the HP monitor on another computer and it turns on and off. So I am sure it is the monitor.
1) any ideas as to what may be the problem? (overheating)
2) which internal components may need replacement?
3) How do I take the back cover off without breaking the plastic tabs...Do you have any illustration as to where the plastic snaps/tabs are so I can push on the proper areas without breaking anything.
4) is this a common problem...I talked to HP and they have no record of this type of problem....my hunch is that it is a common problem.

Thanks

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This is a fairly common problem with lcd monitors but it can be caused by many different components.
To remove the back cover you need to insert a thin plastic strip to prise it apart. Don't use anything metal as this will damage the plastic casing. If you slide the plastic strip along the join you should be able to feel where the clips are. Once you have got 1 clip released it should be fairly easy to release the others. The clips rarely break so don't worry about them breaking. Once inside take a look at the electrolytic capacitors. These look like miniature tin cans and are normally slightly concave at the top. If any are bulging or have a brown liquid oozing from them they will need replacing. Also check all the solder joints are OK especially on the transformers. If your screen has a pinkish hue then 1 or more of the backlights is failing. The inverter detects the power difference in the backlights and shuts down as a safety precaution.

Posted on Sep 12, 2009

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