Satellite L350D-20F - very high peep tone causing headache

Hello there,
A few weeks ago I bought a new Toshiba laptop Satellite L350D-20F.
Does somebody recognize my problem with this laptop; a constant *very high peep tone* that causes headache?
It is not caused by loudspeakers but comes from the inside body of the laptop.
What can I do?
Thanks for any reply.
Best regards,
Renate
The Netherlands

hi Renate_1
try to mute mic and speakers
if the sound is still audible this could be a broken coil on mainboard.
this have to be repaired means new mainboard.
consult a servicepartner.

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