[Elecraft] K160RX (Long)

[W3FPR - Don Wilhelm]

David,

To repeat the old adage - check soldering, then re-check soldering, and when 
that is done, check the soldering.

In particular, look for too much solder causing solder bridges.

Plug the K160RX into the K2 and select any band other than 160 meters - then 
power off and check the resistance from pins 2, 5 and 6, and 12, 13 and 14 
to ground again - the reading should be high, if it is not, check for those 
solder bridges at the connector and at the relays.  After that, plug the 
module in, turn power on and select 160 meters then turn power off - you 
should now see continuity through the low pass filter - put one lead on 
either of pins 2, 5 or 6 and check continuity to pins 12, 13 and 14 - if the 
continuity readings show low resistance, the toroids should be well tinned 
and soldered - then check to be certain there is a high resistance to ground 
from these pins - if you find a low resistance, look for solder bridges at 
each of the capacitors and at the toroid leads.

Hope yo find it without much frustration.

73,
Don W3FPR

----- Original Message ----- 

> I am posting this again.
> I have a problem with "HI CUR" On the K160RX
> It comes on for a second and then shows .5 watts
> regardless of the power setting.
> In troubleshooting here is what I have done
> I compared in and out of the of the module
> with the setup of
> Power 1.0 watts setting
> I got this with the RF Probe
> AT C1 7.5-8.3v
> AT L1/C2 9.9-10.3v
> At L2/C3 7.5-8.3v
> I compared this to 80m
> and the results were the same
> So The next thing I did was check switching My
> switching is ok all the relays are functioning
> Next
> I pulled the K160RX board out and checked to see if
> there may be short across the bottom of the plug for
> the module. by comparing the reading from 1 pin to the
> rest and so on IE pin 1 to pin 2 pin 3 etc then move
> to the next pin I have a descrepency that I cannot
> prove or disprove Pin 2 to pin 7,8,9 (input) and
> 12,13,14 all check short. If I read the schematic
> correctly There should not be any direct connection
> from pin 2 to 7,8,9 12,13,14 which really puts all
> these connections to ground, Correct?
> thanks