From: ohg...@gmail.com   
      
   On Monday, July 25, 2022 at 1:41:31 PM UTC-4, Peabody wrote:   
   > ohg...@gmail.com says...   
   > > There is another possibility however. Most Samsung LEDs   
   > > are built with a zener inside each die. Ordinarily, the   
   > > zener does nothing but if the LED fails open, the entire   
   > > voltage of the array will appear across the zener   
   > > causing it to conduct and (hopefully) short hard   
   > > effectively jumping out the bad LED. If it does, the   
   > > problem will fix itself until another wayward LED crops   
   > > up or if an interconnect gets resistive.   
   > If I connect my computer to the TV via HDMI, and display a   
   > competely white (all FFs) BMP image full screen, would I be   
   > able to detect an LED that's not lighting up? Would there   
   > be a dark area on the screen, or is the failure of one LED   
   > not enough to cause a detectable darker area on the screen?   
   > When I try this, I don't see anything unusual. The display   
   > is a little darker in the corners, but I think that's normal.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)