Main Board; Tuner; X-Reality Processor; Temperature Sensor - Sony KDL-40CX525 Service Manual

DESCRIÇÃO GERAL DO CIRCUITO
"Figure 3-4. Block Diagram" on page 20
the AZ2-F chassis. Below is a description of the components and
their functions.

MAIN BOARD

Common to all models the Main Board, designated as the BATV
Board, contains the TV control, video, and audio processing circuitry.
All these functions are accomplished using the X-Reality Processor.

TUNER

The tuner is a combination ATSC/NTSC unit. It can receive traditional
analog NTSC signals via cable or terrestrial along with ATSC digital
signals via terrestrial (8VSB) or cable (64 or 256 QAM).

X-REALITY PROCESSOR

IC9000 performs the majority of the necessary audio and video
processing on the main board.
TV Microprocessor: The CPU internal to the X-Reality processor
controls all aspects of the television functions. Input from the user
along with monitoring of critical circuits is also performed by this CPU.
Digital Audio and Video Decoder: The MPEG2 and Digital Dolby
audio streams are received from the tuner for decompression. All
video sources which are not native 1920 X 1080p 60HZ are scaled to
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SEÇÃO 3 - VISÃO GERAL DO CHASSIS
provides an overview of
HDMI Input and Switching: The customer can select the HDMI1,
HDMI2, HDMI3, HDMI4 input. Each HDMI input contains a common
EDI NVM (not shown) to provide display information data to any
device connected via the HDMI inputs.
LVDS Transmitter: Integrated into IC9000 is a Low Voltage Differential
Signaling (LVDS) transmitter. This circuit converts the 8-bit parallel
RGB video information into a set of high speed serial lines for noise-
free transmission to the TCON circuits located internally to the LCD
panel.
Scan Converter: Signal processing circuit that performs resolution
conversion (aspect ratio) and interlaced to progressive scan (IP)
conversion
AUDIO AMPLIFIER
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X-Reality processor and sends it to the speakers.

TEMPERATURE SENSOR

The temperature sensor detects over-temperature conditions on the
Main Board, LCD Panel, or ambient room temperature and sends the
shutdown signal to the processor.
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