[Elecraft] K2 KAT2 pad B problem

[Jay Sissom]

I'm sorry, I mean U1 (the PIC 16C77), not U4.  U1 pin 5 is 3.8V
(forward), U1 pin 4 is 0V (reflected).

Thanks
Jay


On Sun, Jun 7, 2009 at 9:17 PM, Jay Sissom<jsissom at gmail.com> wrote:
> Hello, I'm having a problem with my KAT2.  I have built the board and
> I'm on page 17 of the manual where you measure the voltage at pin B.
> I always get 0 volts here.  Here are some other observations:
>
> I have the ATU menu set to CALn, Power set to 5.0, frequency set to 7.100Mhz.
>
> After pressing tune:
>  pin B = 0V
>  U4 pin 5 = 3.8V
>  U4 pin 4 = 0V
>  C55 setting 009
>
> With an external wattmeter between the dummy load and Ant 1, it reads 6.5W.
>
> Any ideas where to look for the problem?
>
> Thanks & 73
> Jay
> W9IUF
>