[Elecraft] voltage display problem

[Don Wilhelm]

Joe,

I might point out that the most likely cause for failure of Control 
Board U6 is static damage.  When handling it (or other static sensitive 
devices), follow good ESD practices.

Most modern active devices *are* static sensitive to one extent or 
another.  An antistatic mat and a wrist strap are a good investment.  
For inexpensive antistaric measures, look for a mat a bit bigger than a 
computer keyboard size at those places dealing in computer components - 
TigerDirect (www.tigerdirect.com) is usually my first place to look, but 
there are many more - search on 'antistatic' at the site.

73,
Don W3FPR

MARY HAYS CARNEY wrote:
> Don:
> Thanks for the quick reply.  Indeed the voltage at pin 5 of U6 is as expected (2.31 for 11.9 v in).
>
> To be sure: the firmware chip is U6, on the control board??  I'll replace that and see what happens.
>
>