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Basics Sound - 53
Sound Output
All sound output features for the Power Macintosh G3
computer are provided by an I/O card. The Audio I/O card
(standard feature) provides one mini jack for sound output
on the back of the enclosure. The AV I/O card (optional
build-to-order feature) provides three sound output
connectors—two RCA jacks for right and left sound out, and
one 1/8-inch mini jack for a stereophonic phone plug.
The output jacks are connected to the sound amplifier. The
mini jack is intended for connecting a pair of headphones or
amplified external speakers. There is one built-in speaker.
Inserting a plug into the sound output mini jack disconnects
the internal speaker.