Studio Technologies 240 - Manual (Page 34)

Issue 1, August 2013 Model 240 User Guide
Page 34 Studio Technologies, Inc.
Appendix B
The following list provides details on the 3-pin header connectors located on the Model
240’s printed circuit board. Shown are both reference numbers and associated functions.
P5: Headphone Output
Pin 1 common
Pin 2 tip (left)
Pin 3 ring (right)
These pins are electrically in parallel with
pins 3, 4, and 5 respectively of the back
panel 5-pin XLR headset connector.
P6: Microphone Input
Pin 1 common
Pin 2 high (+)
Pin 3 low (–)
These pins are electrically in parallel
with pins 3, 2, and 1 respectively of the
back-panel 5-pin XLR headset connector.
P7: Main Output 1
Pin 1 common
Pin 2 high (+)
Pin 3 low (–)
Pins 2 and 3 are electrically in parallel with
pins 2 and 3 respectively of the back-panel
3-pin XLR main out 1 connector.
Careful! The back-panel main out 1 XLR
has pin 1 floating.
P8: Main Output 2
Pin 1 common
Pin 2 high (+)
Pin 3 low (–)
Pins 2 and 3 are electrically in parallel with
pins 2 and 3 respectively of the back-panel
3-pin XLR main out 2 connector.
Careful! The back-panel main out 2 XLR
has pin 1 floating.
P9: Main Output 3
Pin 1 common
Pin 2 high (+)
Pin 3 low (–)
Pins 2 and 3 are electrically in parallel
with pins 2 and 3 respectively of the back-
panel 3-pin XLR main out 3 connector.
Careful! The back-panel main out 3 XLR
has pin 1 floating.
P10: Main Output 4
Pin 1 common
Pin 2 high (+)
Pin 3 low (–)
Pins 2 and 3 are electrically in parallel
with pins 2 and 3 respectively of the back
panel 3-pin XLR main out 4 connector.
Careful! The back panel main out 4 XLR
has pin 1 floating.
P11: Aux Headphone Line Input 1 Left
Pin 1 common
Pin 2 high (+)
Pin 3 not used
P12: Aux Headphone Line Input 2 Right
Pin 1 common
Pin 2 high (+)
Pin 3 not used
P13: Line Input 1
Pin 1 common
Pin 2 high (+)
Pin 3 low (–)
These pins are electrically in parallel with
pins 1, 2, and 3 respectively of back-panel
3-pin XLR line input 1 connector.