Service manual
AUDIO IN
SPEAKER
AC Outlet
Adaptor
Main Board
Inverter
ControlBrightness
TFT
LCD
Panel
Digital
Signal
Analog
Signal
Video Card
12V
12V
VA C
Volume control & Mute on/off
Speaker
Audio in
DC/DC
Converter
+5V
VLCD
+3.3V
+12V
Clamp
Video Gain
Video Level
ADC
MUX
Scaling
Engine
Sync detect
Phase calibration
OSD Generator
OSD overlay
MUX
MCU port
Dithering
Output control
Output
LCD
Panel
R, G, B
Sync
Buffer
U6
SYNCMOS
SM5964
MCU
HS
VS
HS
VS
U1 MRT
MASCOT
R, G, B offset
Gamma control
Audio amp.
4. Electronic Circuit Description
4-1 Block Diagram
ViewSonic Corporation
7
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