Circuit Description - ViewSonic VP2030b-1 Service Manual

4. Circuit Description

1. Outline
1.1 Buttons on the front panel: Power On/Off button, button 2 (ENTER / INPUT SELECT), up arrow button, down
arrow button, button 1 (MENU).
1.2 D-sub 15pin connector, DVI-I connector and AC-IN jack are located on the back side of the cabinet.
1.3 OSD menu includes the following function;
Auto Image Adjust (only active under analog input)
l
Contrast/Brightness
l
Input Select
l
Color Adjust
l
Information
l
Manual Image Adjust
l
Setup Menu
l
Memory Recall
1.4 Contrast and Brightness can be directly controlled with UP / DOWN buttons.
2. Connectors
2.1 AC inlet : CEE22 typed connector
2.2 Video signal connector for analog input: 15P Mini D-Sub
16
Viewsonic Corporation
PIN
CN6
1
DB15HD
17
2
3
4
5
6
7
8
9
10
11
12
13
14
15
13
MNEMONIC SIGNAL
RV Red Video
GV Green Video
BV Blue Video
NC None
GND Ground (DDC return)
RG Red GND
GG Green GND
BG Blue GND
+5V +5V (for DDC)
SG Sync GND
NC None
SDA DDC Data
HS Horizontal Sync
VS Vertical Sync
SCL DDC Clock
Confidential - Do Not Copy VP2030b-1