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: [email protected] [mailto:[email protected]] On Behalf Of Vic K2VCO Sent: Monday, March 11, 2013 9:40 PM To: [email protected] 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 > > [email protected] > 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/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
