I suggest the synthesizer/s. Power off; pop the top; pull and reseat
it/them. It/they is/are a small card towards the face of the rig as I
recall.
Then EACH of the TMP connectors (a slight twist of the CONNECTOR, not
the wire cable).
There may be some cruft build up after time (small corrosions; flexes
from heat/cool cycles)...
Then it gets interesting if the problem remains.
73,
Rick nk7i
On 1/27/2025 1:31 PM, n0...@juno.com wrote:
Hi Gents,
My K3 has a problem and it's intermittent. Maybe someone
has had the same issue and knows of a possible remedy.
Here are the symptoms:
1. Switch on radio. Nothing being received except I can
hear the neighbor's electric fencer and I can hear *some* "normal"
powerline noise. NO signals heard on the AM Broadcast Band
which is very unusual. It's like the signals that need to be
processed/demodulated aren't.
2. Radio doesn't transmit when the no receive problem occurs.
3. Turn off radio...
4. Turn radio on and everything is normal, sometimes.
5. It doesn't seem to matter if the radio is warmed up or not.
6. Voltage to the radio is okay at all times.
7. Audio out is okay at all times., i.e it isn't totally dead.
8. Gently "banging" on the radio doesn't help...connections all
okay in back of the radio.
9. I can hear some noise increase/decrease when the RX pre-amp
is switched in/out.
10. The attached P3 sometimes won't update either when the freq
is changed...recycle the K3's power switch and then all okay
with the P3....might be a separate issue.
11. Other bands have the same "no receive" problem.
So...any ideas to help me zero-in on something to check first after
I open the covers?
Thanks,
Charlie, N0TT
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