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Westinghouse monitor model lcm 19w4. Screen keeps going black and you have to turn it off then back on to get screen back. Sometimes screen will work properly for hours, but sometimes keeps happening every couple minutes or even only a few seconds at a time. Carol

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This looks like a power supply problem, due to internal
over heating. When it cools down, the power supply turns
back on, or an "over current/ thermal" protection circuit
trips. Shutting of the monitor off resets it, and then it trips
again.

I had an old Samsung 19" with an identical problem.
(see my other post)

Mine was caused by a leaky capacitor, but every
monitor is different. (I have considerable knowledge of
electronics, as well as a degree in engineering, so
I was able to fix it, but I would not recommend this to
a non-tech person.)

The 19w4 seems to be a fairly new wide format monitor,
probably still under warranty. I would take it back to the
store on a busy Saturday afternoon and scream blue
murder.

There is absolutely nothing you could have done to cause
this problem, nor is it normal wear and tare.

It is the result of sub-standard manufacture, and you have
every reason to take it back. Your case is stronger if
you don't try to open it.

Good luck, Martin.
please rate my answers.



Posted on Jun 14, 2008

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