[Elecraft] K2 LCD Issue

Luc Favre luc-favre at orange.fr
Tue Feb 25 05:49:30 EST 2014


I had the same issue and resoldering the LCD did the job.
73
Luc/F6HJO

Le 25/02/2014 01:02, Don Wilhelm a écrit :
> 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.
>>
>>
>
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