Chris,
In all probability, the little plastic lever which operates the switch
inside the headphone jack has broken. It usually fails with no speaker,
but it can fail either way.
It is a bit of a pain, but you can shut off the speaker by plugging an
empty jack into the external speaker jack o
Just bought a new K2 #4913. All is great, however, inserting a
headphone doesn't cut off the speaker. The headphone plug is a standard
3.5 mm plug. The schematics show the plug should cut the speaker.
Is there an internal parameter that needs setting? If not what's the
easy way to access
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