[Elecraft] [MM] XG1 signal problem

[Don Wilhelm]

Brian,



I would advocate removing the switch from the PC board and see if the 
resistance goes higher - in theory, it should be infinite.
I don't know of an easy way - sorry.  It may be the switch, or it could 
be the diodes in the output, but something is not right if you measured 
104 ohms with the switch in the 50 uV position.

73,
Don W3FPR

Brian - N5BCN wrote:
> Hi Don,
>
> The resistance from R4/R5 junction to R6/R8 junction with switch at 50 uV is
> about 104 Ohms.  The value with the switch at 1 uV is 0.1 Ohms.  104 Ohms
> isn't "very high," perhaps a bad or dirty switch?  No solder bridges visible
> around the switch.
>
> Is there an easy way to clean it without removing it from the PCB?
>
> Thanks.
>
> Brian - N5BCN
>
> -----
> K2 #6800 KSB2 KAT2 KIO2 KNB2
>   
>