[Elecraft] K2/10 Low power

[Don Wilhelm]

Byron,

There is no single cause, other than to say that somewhere in the 
transmit RF chain there is a problem.

Turn to the back of the K2 manual and do the Transmit Signal Tracing 
procedures.
While doing the procedures, work in the order listed.  You may ignore RF 
voltages that are greater than the listed expected value.
What you are looking for is the first point where the RF voltage is 
substantially lower than the expected value.  That is the output of the 
failing stage.  Check that stage in detail - component values, solder 
connections, DC voltages etc.
Refer to the schematic to identify the components associated with that 
stage.

73,
Don W3FPR

On 1/3/2017 8:46 AM, Byron Allen wrote:
> Serial # 4455
>
> What would cause the following low power after all the bandpass filters
> have been peaked?  maximum power setting
>