Lenovo 4157 User Manual - Page 18

Connect the ac power adapter cable to the speaker., Connect the speakers to the computer.

Page 18 highlights

6. If you have powered speakers with an ac power adapter: F_LR a. Connect the cable that runs between the speakers, if necessary. On some speakers, this cable is permanently attached. b. Connect the ac power adapter cable to the speaker. c. Connect the speakers to the computer. d. Connect the ac power adapter to the ac power source. 7. If you have unpowered speakers with no ac power adapter: F_LR a. Connect the cable that runs between the speakers, if necessary. On some speakers, this cable is permanently attached. b. Connect the speakers to the computer. 10 User Guide

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6.
If you have powered speakers with an ac power adapter:
F_LR
a.
Connect the cable that runs between the speakers, if necessary. On some
speakers, this cable is permanently attached.
b.
Connect the ac power adapter cable to the speaker.
c.
Connect the speakers to the computer.
d.
Connect the ac power adapter to the ac power source.
7.
If you have unpowered speakers with no ac power adapter:
F_LR
a.
Connect the cable that runs between the speakers, if necessary. On some
speakers, this cable is permanently attached.
b.
Connect the speakers to the computer.
10
User Guide