Block Diagram - Vizio VX37L HDTV10A Service Manual

Chapter 10
System Block Diagram
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Keypad/IR
Board
Our LCD TV system works at the AC power supplying 100V~240V AC +/- 10% @
50/60 HZ. The Main Board is supported power by the Power Board, which converts
the AC source to the DC 5V & 12V& 24Vsource. The 5V is the system stand-by
energy, and the 12V works when we start our system. Indicating LED back light
shows the state of our system by its light colors. "Orange" means stand-by, or
"White" means working. The 24V supports energy for the inverter, which keeps the
LCD back light module stable.
Our LCD TV system, VX37L HDTV 10A, supports different kinds of multi-media
formats. They are 1x RF ( ATSC/QAM/NTSC), Composite Video / S-Video, Analog
RGB, Component YPbPr, HDMI1.1 with HDCP and stereo audio outputs. As shown
in the figure "main board block diagram", MT5372 processes video signals and
audio signals and WM8776 processes audio signals. MT5372 is also a LVDS
generator. The processed video signals are transmitted to panel terminal as LVDS
format.
CONFIDENTIAL DO NOT COPY
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System Block Diagram
LCD display device
Digital
Video bus
J2 j7
Main Board
P5 P6 P7 P8
Power Board
J1
P3 P1 P2
AC IN
Speakers
J6
P11 U12 P10 P9
Page 10-1
File No. SG-0209