Petr,
The most likely cause is the switch lever inside the headphone jack.
The switch is the 3 contacts closest to the rear of the K2 RF Board.
Replacement of the headphone jack is the normal fix (Elecraft PN E620028).
If you want to try a temporary fix (the speaker will be active all the
time), you can solder a jumper between the center solder pad of that
switch to the solder pad to the right.
While you have that temporary fix in place, the speaker can be silenced
by placing an unwired 3.5mm plug (either mono or stereo) into the
external speaker jack.
73,
Don W3FPR
On 5/26/2014 10:33 AM, Petr Ourednik wrote:
Hello
Sorry for bothering with maybe stupid task...
My daddy called me this morning that he has no audio on his K2 from
internal speaker. When he plug in the phones it works. (Yda evening int.
spkr worked too)
Is it the problem of switching contact inside of the Phones socket on
the front panel or it can be issue somewhere else please?
I have no K2 on the table and I did not found so much in the manual...:(
Thank You for hints.
73 - Petr, ok1rp
K2/4800
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