[Elecraft] P3 burn-in concerns?

[Ron D'Eau Claire]

I'm not certain, but I believe the backlight on the P3 is an LED panel.
Whatever it is it's in integral part of a sandwich about 0.2 inches thick
comprising the whole display. 

73 Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Vic K2VCO
Sent: Monday, March 11, 2013 9:40 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] P3 burn-in concerns?

Many times when the "backlight burns out" on a computer monitor it is not
the backlight at all, but rather the switching supply for the backlight
that's failed. I've fixed a couple of these.

On 3/11/2013 7:12 PM, david Moes wrote:
> That would depend if the backlight is LED or cold cathode.     I service
equipment with 
> LCD displays with both types of backlights and burnout is very very rare.
on small 
> screens like the P3 the light is not being pushed hard and should last a
long long time.
>
> As for burn in.   One of our machines with a 14 inch LCD display does in
fact burn 
> in.    It takes a many months  of displaying the same image 24/7.  The
customer never 
> sees the burn as that part of the screen never changes.  but with the
different screens 
> I use in diagnostics I can see it.     If I leave it on a full white
screen over night 
> it disapears and doesnt seem to come back for another several months so
the burn in 
> seems to not be permanent.      on the P3 I doubt this will ever be an
issue.
>
> David Moes
>
> dmoes at nexicom.net
> VE3DVY
>
> On 3/11/2013 6:39 PM, Ralph Parker wrote:
>>> No. The only possible issue is backlight failure, just like your 
>>> computer or TV screen.
>> Tnx, Ron, just what I was hoping to hear.
>> I usually turn the radio on in the morning, and off in the evening, 
>> longer periods only in a contest.
>>
>> Should I be concerned about the backlight? I've only had two burn 
>> out, one in a laptop (NEC) and one on a desktop monitor (Dell).
>> I would suppose that the entire display module would have to be replaced.
>>
>> Ralph, VE7XF
>>

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

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