Service manual

4.1D-SUB CONNECTOR PINASSIGNMENT
Pin No.
Symbol Signal Description
1 R RED 0.7vp-p (VIDEO)
2 G GREEN 0.7vp-p (VIDEO)
3 B BLUE 0.7vp-p (VIDEO)
4 N.C.
5 GND GROUND
6 GND GROUND
7 GND GROUND
8 GND GROUND
9 VCC_+5V PC +5V
10 GND GROUND
11 N.C.
12 DDC_SDA DDC1/2B TTL
13 DDC_SCL DDC1/2B TTL
14 VGA_VSYNC VSYNC TTL positive or negative
15 VGA_HSYNC HSYNC TTL positive or negative
4.2 Main DC+12V Input (J800 on I/F Board)
Pin No.
Symbol Function
1 GND Ground
2 DC+12V Main DC+12V Input
3 GND Ground
4.3 Audio Input Jack (J701 on I/F Board)
Pin No. Symbol Function
1 Ground
2 L_CH_Audio Input
3 R_CH_Audio Input
4 L_CH_Audio Return
5 R_CH_Audio Return
4. Circuit Description
ViewSonic Corporation
7
Confidential – Do Not Copy
VG500b