While attempting to set the vox /antivox /speaker / headphone settings on my
K3-100 (#2389) - and during a moment when I was not touching the rig - I heard
a pop on the audio and then a loud bzzzzzzzz noise which has not let up. At the
time I was using an external speaker but disconnected it and the noise
continued through the internal speaker. I cannot turn down the noise when I
rotate the AF or RF knobs, though in the extreme counter-clockwise position it
does change pitch.
The receiver seems to still be working properly, though the noise covers and
distorts weak signals. Audio also sounds ok through headphones, though with
that continuous bzzzzz right in front of me it's not easy listening. The rig
also seems to work well on transmit although other operators tell me they also
hear the bzzzz. It is there in all modes, and takes a couple of seconds to
start up when I turn the rig on. Needless to say, I don't like running the K3
while there's an obvious defect. I hope I haven't fried another DSP board. Any
ideas about what my problem might be?
Thanks very much & 73,
Bill Jaker, WB8RAE Town of Maine, NY
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