Service manual

4. Circuit Description
1. Outline
1.1 Power On/Off, (2) Enter button, up arrow button, down arrow button, (1) MENU button, Volume “+” button, Volume
“-“button and Mute button on the front panel.
1.2 D-sub 15pin connector, audio line-in receptacle, and AC-IN 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)
Contrast/Brightness
Audio Adjust
Color Adjust
Information
Manual Image Adjust
Setup Menu
Memory Recall
1.4 Contrast and Brightness can be directly controlled with UP / DOWN key.
1.5 Audio volume can be controlled with Volume “+” key ,Volume “-“ key and UP/DN key when Audio Adjust menu is
active.
1.6 Pushing Mute key can disable audio output.
2. CONNECTORS
2.1 AC inlet : CEE22 typed connector
2.2 Audio : Line-in,
CN9
2
3
4
5
1
Line-in receptacle
(Line-in receptacle is green)
ViewSonic Corporation Confidential - Do Not Copy VA2012w-2_VA2012wb-2
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