On Fri, 10 Jul 2015 06:58:06 +0000 (UTC), "Yes"
wrote:

I did some deeper Googling and ran across a reference to "backlight"
failure. I don't know what that means, only that the symptoms I
described seem to match that term. Of course, the warranty on my
monitor expired about four months ago :-)

It would seem that the remedy is to replace the monitor, which is not a
big deal, but there was no info about how soon that you should do so
once the problem crops up. Between Paul's and Flasherly's responses,
at least I can rule out the video card. I would have hated to have to
deal with two problems at once. One at a time is more manageable.

Good thing, as that involves a bulb or related support circuitry
changes, being more apt to find common replacement parts, than, say,
aberrations you may be experiencing from non-power related logic
circuitry directly addressing the 3 colors/black&white comprising a
pixel display (the surrounding cathode tubes further facilities by
brightening the pixel).

Most "video cards" are not: Most all MBs, though curiously not shrunk
yet far enough for yet having slots for prohibitively expensive "video
boards," in other words they're almost exclusively sold across the
broader market already chipped with video (dunno, personally, about
these newer offerings, with the CPU now formally incorporating video
subsystems).

Tedious, is it not, dealing with it? Good thing is you'll feel so
much better when your vast technical expertise accomplishes so many
amazing things you know.

Like that Behringer soundprocessing board, alongside possibly surface
mounted automated machine soldering, for the arrays of capacitors I
attempted to resolder last evening (bought 20 of them, at 15-cents
each, for starters...polarized 10u farads), to replace ostensible
Behringer ****.

Got as far as finishing two. Tolerances were too small and tight,
totally for working under a x15 or x20 stereoscopic workbench
microscope with a small, close and tight 20-watt soldering iron.

That I could do it, doing two (had to solder them from the backside of
the board's contacts, otherwise too much and tight of miniature real
estate) made me feel -- sooo savvy, like accomplished. I felt exactly
that way all the way to the garbage can, where I dumped the rest of
the capacitors alongside the Behringer unit. Just in time to return
and write a nasty-assed review of Behringer on Amazon. Mark my words,
matey.

--
Enduser: To be kept in the dark and never, ever watered.