Samsung LN-S2641D Owner's Instructions Manual page 7

Side Panel Jacks (LN-S3241D/LN-S4041D)
Use the left side panel jacks to connect a component that is used only occasionally, such as a camcorder or video game. (See page 10)
AV IN 2
Video and audio inputs for external devices.
S-VIDEO IN 2
Video inputs for external devices with an S-Video output.
HEADPHONE
Connect a set of external headphones for private listening.
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