Sanyo VPC-CG65PX. - Manual (Page 142)

English
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5
Press the MENU button.
h The operation sound settings are completed.
HINT
i If you keep the MENU button pressed and turn on the power, the screen to
turn the operation sounds ON/OFF appears at once. You may find this a
convenient procedure to disable the operation sounds in places you do not
want them to be audible.