[Elecraft] K2 S-Meter LED Question (Alignment and Test Part II)

[Don Wilhelm]

Don,

I would suggest you first look for a solder bridge in the vicinity of FP 
DS2 (the LED array) pin 20 and/or U4 pin17.  There are via holes on the 
board between those location which are also potential places for solder 
bridges.

If you find nothing in that search, then the most likely problem is that 
U4 has a bad output at pin 17.  The 6B595 IC is subject to static 
damage, and may have been zapped when it was mounted if good anti-static 
procedures were not followed.

73,
Don W3FPR

Don Herring wrote:
>
> However, during all of this, the rightmost LED on the S-Meter is 
> constantly lit.  Any clues as to what may be causing this? 
>
>
>