Can an LCD display be damaged by the wrong display output?

[Scott van Looy]

Today Gene Heskett did spake thusly:

> On Tuesday 28 November 2006 07:06, Rick Bilonick wrote:
>> I have a Planar 20" PL2010M LCD monitor. I attached it to an Athlon 64
>> system running FC6 and using the nvidia proprietary driver (the latest
>> available). I tried (foolishly) the 1920x1080 interlaced output. The
>> monitor said it was outside the range. I reset to 1600x1200
>> noninterlaced and everything was fine. Later I connected a similar
>> computer (running FC5) that was displaying 1920x1080i (same nvidia card
>> - 5700LE or such). I noticed my mistake right away and I immediately
>> disconnected the monitor. Now, the PL2010M won't display anything. The
>> on light switches quickly from green to a constant yellow and displays
>> "no input signal" on the screen regardless of whether I'm using the
>> analog or digital input. I can no longer bring up the setup menu (e.g.,
>> to change from analog to digital) - no menu whatsoever. I called Planar
>> and they said it wouldn't damage the display but it seems like too much
>> of a coincidence.
>
> No, I suspect (I'm a C.E.T.) where you made the mistake was in
> disconnecting it, no doubt while powered up on both ends of the
> connection.  Now go find one of your old grammer school teachers and tell
> her you've been a bad boy & take the knuckle rapping she will dish
> out. :-)

Tsk. "Grammar"

> I suspect that in the process of unplugging it, a ground connection was
> the first to be opened.  In that case the input electronics in the
> monitor, and possibly even the output stages of the video card are pretty
> historical.  From your description its plain the monitor needs a trip to
> the shop, maybe even back to the factory shop, probably for a fresh copy
> of its video board.
>
> I'd test the video card in the computer with another monitor to see if it
> survived.

I'd reboot with it plugged in and see if I got the console...far easier 
than a trip to the shop... ;)

-- 
Scott van Looy - email:me at ethosuk.org.uk | web:www.ethosuk.org.uk
site:www.freakcity.net - the in place for outcasts since 2003
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