Panasonic SC-HTB770 Owner's Manual page 18

Fit the speaker(s) securely onto the screw(s).
Red connector: The speaker attached to the red connector cable is to be placed on the right side.
White connector: The speaker attached to the white connector cable is to be placed on the left side.
A Left speaker connector
Front speaker
≥ Move the speaker so that the screw is in this position.
18
RQT9778
DO
Center speaker

White
Red
B Right speaker connector
Front speaker
≥ In this position, the speaker will likely fall if moved to
the left or right.

DO NOT
Center speaker