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XGA Interface Board (PWB-0535)
CON1 : Connect with Control board
Pin No.
Symbol
Function
1 Mute
OSD, Audio Mute Function Button
2
SP-
Adjust audio volume smaller
3
SP+
Adjust audio volume louder
4
Menu
Call out or close the OSD menu or come back to the
previous menu
5
Down
Choose the next one item or value
6
Up
Choose the last one item or value
7 Sel
Select
8 GND
Ground
9 Amber
Indicate
the
system in power saving mode
10
Green
Indicate the system in active mode
11 GND
Ground
12
Power
Power on/off control port
CON3 : Connect to the PWB-0537, which is power/audio board
Pin No.
Symbol
Function
1
SENSOR
Detect audio I/P signal
2 GND
Ground
3 +12V
DC+12V
4 GND
Ground
5
CCFL_EN
Backlight lamps ON(high)/Off(Low) control
6
GPIO2/PWM2
Brightness adjustments (Low Max./ Hi. Min.)
7
MUTE+
Audio Must control (High means SPK off, Low means On)
8 GND
Ground
9 +5V
DC+5V
10 +5V
DC+5V
11
STDBY
Audio Stand-by control (Hi means stand-by, Low means Normal)
12 VOLUME
Speaker
volume control (0V means Sound off, 1.2V means MAX.)
2.6 Internal Connector & Pin Assignment
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ViewSonic Corporation
5
Confidential
– Do Not Copy
VG500-2
Summary of Contents for VG500-2
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