Thread: KX-155 LEDs
View Single Post
  #13  
Old November 18th 03, 11:57 PM
Aaron Coolidge
external usenet poster
 
Posts: n/a
Default

wrote:
: John Purner wrote:
: : I have the same problem with one of my KX155's and my ADF. Funny thing is
: : that about five minutes after takeoff. The problem clears up. It seems like
: : low voltage, but it isn't.

: As I said it my post, I'm pretty sure that it's a pseudo-grounding
: of the high-voltage that runs the displays. They're not LED's, and they
: require a fairly high voltage, which is easier to bleed off due to
: humidity. It's definately high enough to make you notice if you
: accidentally brush up against it!

: -Cory

John, Cory, try this:
Take the displays out. Burnish the silver contacts on the displays.
I used a pencil eraser. Note that the contacts are not gold, if they
were they would not tarnish. Put a bead of dielectric grease on the
display's contacts. This will create a gas-tight contact, and keep
the condensation from bleeding off the +150V used to light the
displays. Put the displays back in.

This is what Conrad up at the Radio Shop at KORH did to my KX155's
when I was having similar difficulties a few years ago. No further
problems.

--
Aaron Coolidge (N9376J)