Service manual

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
PIN
MNEMONI
SIGNAL
1
RV
Red Video
2
GV
Green Video
3
BV
Blue Video
4
NC
None
5
GND
Ground(DDC return)
6
RG
Red GND
7
GG
Green GND
8
BG
Blue GND
9
+5V
+ 5V (for DDC)
10
SG
Sync GND
11
NC
None
12
SDA
DDC Data
13
HS
Horizontal Sync
14
VS
Vertical Sync
15
SCL
DDC Clock
CN6
DB15HD
1 6 2 7 3 8 4 9 5
11 12 13 14 15
10
16 17
4. Circuit Description
15
ViewSonic Corporation Confidential
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Do Not Copy VX912