[Elecraft] P3 burn-in concerns?

[Vic K2VCO]

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/