ViewSonic VG500-2 VLCDS24349-2W Service Manual page 8

2.6 Internal Connector & Pin Assignment
XGA Interface Board (PWB-0535)
CON1 : Connect with Control board
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
CON3 : Connect to the PWB-0537, which is power/audio board
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
ViewSonic Corporation
Symbol
Mute
OSD, Audio Mute Function Button
SP- Adjust audio volume smaller
SP+ Adjust audio volume louder
Menu Call out or close the OSD menu or come back to the
previous menu
Down Choose the next one item or value
Up Choose the last one item or value
Sel Select
GND Ground
Amber Indicate the system in power saving mode
Green Indicate the system in active mode
GND Ground
Power Power on/off control port
Symbol
SENSOR Detect audio I/P signal
GND Ground
+12V DC+12V
GND Ground
CCFL_EN Backlight lamps ON(high)/Off(Low) control
GPIO2/PWM2 Brightness adjustments (Low Max./ Hi. Min.)
MUTE+ Audio Must control (High means SPK off, Low means On)
GND Ground
+5V DC+5V
+5V DC+5V
STDBY Audio Stand-by control (Hi means stand-by, Low means Normal)
VOLUME Speaker volume control (0V means Sound off, 1.2V means MAX.)
Function
Function
5
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VG500-2