Samsung P55 User Manual page 64

Connecting 5.1 Channel Speakers
1
Connect the S/PDIF cable to the S/PDIF jack and connect the other end of the cable to the 5.1 channel speaker
system.
Since the procedures to connect a .1 channel speaker system may differ depending on the system model, refer to the relevant
product manual. A 5.1 channel speaker system consists of 6 speakers, an amplifier, and a decoder.
2
After connecting the speaker system, set the speaker's input mode to Digital Output.
S/PDIF
S/PDIF Cable
6
5.1 Channel Speakers
Decoder