Circuit Description - ViewSonic VA702-3 Service Manual

4. Circuit Description

1. Outline
1.1 POWER On/Off , LED, Button"2" , Up arrow- button , Down arrow button , Button"1" , button , Down arrow button ,
Button"1" , on the front panel.
1.2 Video signal connector, and AC-IN are located on the back side of the cabinet.
1.3 OSD menu includes the following function;
AUTO IMAGE ADJUST
CONTRAST / BRIGHTNESS
COLOR ADJUST
INFORMATION
MANUAL IMAGE ADJUST
SETUP MENU
MEMORY RECALL
1.4 CONTRAST and BRIGHTNESS can be directly controlled with UP / DN key.
.
2. CONNECTORS
2.1 AC inlet : CEE22 typed connector
2.2 Video signal connector 14P + Mini D-Sub
ViewSonic Corporation
PIN MNEMONI
1 RV
2 GV
3 BV
4 NC
5 GND
6 RG
7 GG
8 BG
9 +5V
10 SG
11 NC
12 SDA
13 HS
14 VS
15 SCL
Confidential - Do Not Copy
9
SIGNAL
Red Video
Green Video
Blue Video
None
Ground(DDC return)
Red GND
Green GND
Blue GND
+ 5V (for DDC)
Sync GND
None
DDC Data
Horizontal Sync
Vertical Sync
DDC Clock
VA702-3_VA702b-3