[Elecraft] Frequency Counter Probe not working S/N 5567

[Don Wilhelm]

Terry,

I'm glad you found it - congratulations on the good troubleshooting steps.

73,
Don W3FPR
 

> -----Original Message-----
> 
> Thanks for your assistance, I found the problem and the Freq. counter is
> now working.
> 
> I used one of the 2n2222's from the RF board and replaced Q9.  But, this
> did not fix the problem so I checked the voltage at the base and Q9 and
> found none.  Checking the voltage at Q10 I found .73Vdc.  Checked for
> voltage at RP4 pin 1 and found none, checked RP4 pin 2 and found
> 3.something.  Reheated pins 1 and 2 and bang problem fixed, .73Vdc at Q9
> base and freq. counter working.
> 
> Thanks for your help.  It's been a long time since I followed a
> schematic.  All in all a good learning experience.  Now back to
> building.
> 
>