Hi,
For anyone wanting to add the 100K resistor on the /MUTE line, there is no
need to remove an IC - the trace from pin 17 of the MCU runs over to C23 on
the front side of the control board - that trace can be easily cut and the
resistor added from C23 to U6 pin 17 on th eback of the board.
73,
Don W3FPR
----- Original Message -----
Fred and others,
I've lost track of who originated what mod to eliminate that QSK click
that started for me when I installed the DSP option into the K2. What
provided a good enough solution for me was the 100K resistor in series
with pin 17 /MUTE of the MCU U6 on the control board. Why this worked I
can't tell you for sure.
The down side is that I think I had to remove a soldered IC so I could
cut a trace and install the resistor. Getting the IC out was no problem
for me since I have the appropriate vacuum desoldering equipment and
experience to do it without hazard. Then too maybe I'm confusing this mod
with another mod.
Under some conditions - maybe 1-3% of the operating time - a light
thumping remains in my full range headphones for short periods from
unknown causes. It's so transitory that I never did anything further
about it.
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