Addonics Technologies DVD R/RW - Manual (Page 6)

Chapter 3 Switch Settings on back of unit
Figure 1
S3
S2
S1
C2
C1
C1 – Analog audio connectors
C2 – Interface cable connector
S1 – Duplicator and External switch
Up position = Duplicator
Center = Neutral
Down position = External DVD±R/RW
S2 – Buzzer
6 = ON (factory default)
7 = OFF
0-5 (reserved)
S3 – functional switch
0 = Copy (factory default) 4 = Compare
1 = Test 5 = Erase
2 = Test & copy 6 = Update Firmware
3 = Verify 7 = Auto play audio
Addonics Technologies – DVD±R/RW DigiCopier Users Guide v1.0 5