[Elecraft] K2 LCD Issue

[Don Wilhelm]

Don,

That normally is the symptom of a solder connection that did not receive 
adequate heat during soldering.  After a time, enough oxidation has 
developed to cause a problem.

If you are fortunate, that bad solder connection will be at the LCD.  
Re-flow the solder for the LCD leads (I suggest soldering from the side 
the LCD is mounted on), and see if that cures the problem. If it does 
not, then the problem is with the soldering of Front Panel U1.  Tell me 
which segment is not working and I can tell you which U1 pin that needs 
to be soldered better.  Since the pins of FP U1 are covered by the LCD, 
the technique for resoldering is to carve away a bit of the plastic from 
the U1 socket and soldering the pin from the socket side of the board.

73,
Don W3FPR

  On 2/24/2014 6:46 PM, donh wrote:
> Been happily on the air with my K2, but I noticed a few day ago that one of
> the segment of the LCD numeric display has stopped working.  Not a bit deal
> since it's the last digit (.x0) in the frequency display.
>
> But, I'm about to go into the radio and finally install the SSB module that
> I've had for a while and I thought while I was in there I would work on the
> LCD.
>
> Only problem is that I have not idea on how to trouble shoot this problem.
>
>