Pioneer DV-646A Operating Instructions Manual page 115

A1 Language General
Audio2 Video1 V2
Virtual Surround — Off
Legato PRO TruSurround
Audio Out — 2Channel
Speaker Setting
Surround effect from 2 speakers
Move Exit
SETUP
Language General
A1 Audio2 Video1 V2
Virtual Surround — Off
Legato PRO — Standard
Audio Out — 2 Channel
Speaker Setting 5.1 Channel
Setting up audio output
Move SETUP Exit
Language General
A1 Audio2 Video1 V2
Virtual Surround — Off
Legato PRO TruSurround
Audio Out — 2Channel
Speaker Setting
Surround effect from 2 speakers
Move SETUP Exit
Language General
A1 Audio2 Video1 V2
Virtual Surround — Off
Legato PRO — Standard
Audio Out — 2 Channel
Speaker Setting 5.1 Channel
Setting up audio output
Move SETUP Exit