On Mar 16, 11:34 am, G-squared <stratu...@[EMAIL PROTECTED]
> wrote:
> On Mar 16, 6:41 am, "JohnR66" <nos...@[EMAIL PROTECTED]
> wrote:
> > "G-squared" <stratu...@[EMAIL PROTECTED]
> wrote in message
> >
> > news:e878aa78-353d-4673-
> a021-9cba91ff2...@[EMAIL PROTECTED]
> > On Mar 15, 1:29 pm, md <mardahl2...@[EMAIL PROTECTED]
> wrote:
> > > You're signing to the choir.... They also last 20 years. But,
> > damn,
> > > they are heavy arn't they. :-)
> >
> > Signing to the choir? Like they can't hear? Must make a neat sound.
> >
> > Before you guys get all misty-eyed on CRTs, they really _do_ suck
> on
> > so many levels. Geometry is mediocre along with convergence, they
> > react to magnetic fields - and rearly in a good way. They drift
> like a
> > balloon in the wind. They have those wonderful high voltages inside
> to
> > attract dust. And heavy and bulky and --- good riddance.
> >
> > GG
> >
> > I wonder how long LCDs really last. They say one thing, but using
> laptops as
> > an example, They seem to dim or color ****ft after 3 or four years.
> It seems
> > to be a backlight issue more than anything. My Viewsonic 17"
> computer
> > monitor is still good now at 3.5 years. I keep the brightness at
> 33% because
> > it is too bright otherwise.
>
> Good question and I don't know the answer. I do know that running an
> LCD at reduced level will do nothing either way regarding life of the
> unit - unless they reduce the light level of the backlight for overall
> settings which is a possibility. I've heard of varying the backlight
> dynamically to increase the contrast ratio number as we consumers fall
> for 'bigger is better' even when it can be proven false. Varying the
> backlight dynamically would have all sorts of oddities but statically
> changing it with the controls wouldn't be bad assuming the color
> temperature is constant.
>
> It's only one unit but our 4+ year old Samsung DLP currently has
> around 10,000 hours (was 9100 a few months ago) and has its second
> bulb and color wheel. I replaced them - it's considered user
> replaceable - for a total cost of $195.30. I have 2 friends with the
> same model with similar stories but that's only 3 units.
>
> As a general rule for all electronics don't bang or vibrate them and
> keep the dust cleaned out so that they aren't overheated. Heat is the
> number one killer and dust the biggest culprit. Every year about this
> time I take the computers in to work to give them a blast with the air
> hose (20 - 30 PSI max) and they never look as dirty as they actually
> are judging by the size of the 'cloud'.
>
> GG
You should not blow out electronics. The grit moves into unsealed
connection devices; switches (power & logic), board/memory slots, ic
and power.


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