You Hear Sound From The Built-In Speaker Even When Headphones (Not Supplied) Are Connected - Sony ICD-UX570F Help Manual

Help Guide
IC Recorder
ICD-UX570F / ICD-UX575F
You hear sound from the built-in speaker even when headphones (not supplied) are
connected.
When the headphones connection is loose, you may hear sound from the built-in speaker as well. Disconnect the
headphones and connect them once again.
[Audio Output] for the FM radio function is set to [Speaker] with the OPTION menu.
Set [Audio Output] to [Headphones].
Related Topic
Switching the FM radio output between the built-in speaker and the headphones
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