Logitech Z607 Setup Manual page 11

5. Channel Level:
Controls volume of speaker channels Press once to cycle
through front (F) speakers, rear (R) speakers, center (C) speaker,
and subwoofer (S), select the channel and adjust the volume of
that unit or channel from 5 to -5 System will save channel volume
adjustment
6. +Vol:
a Increases the master volume
b When selecting channel level button first, +vol increases
the volume of the selected channel
7. AUX: Selects 3 5mm AUX input
8. RCA/DVD: Selects RCA input
9. FM RADIO: Selects FM Radio
10. Bluetooth/Bluetooth Pairing:
a Short press selects Bluetooth mode
b Long press will start Bluetooth pairing mode, LED will quickly
blink 'bt' on the display
11. SD/USB: Selects SD/USB input
English 11