Lcd Panel Assembly; Tcon Board - Sony KDL-40EX520 Service Manual

LCD Panel Assembly

The LCD Panel Assembly includes the LCD Panel, TCON Board,
and LED Backlight system.
The LCD Panel contains the actual liquid crystals, color filters, and
polarizers. The liquid crystals are manipulated by the applied voltage
to pass a specific amount of light - from the backlight- depending on
the level of voltage applied.
A new LCD Panel assembly from parts will include the following
items.
1. LCD Panel
2. LED Backlighting Components (varies)

3. TCON Board

TCON Board
The TCON Board communicates between the LCD Panel and the
microprocessor on the Main Board. The TCON performs all the
control, timing, charge, and discharge functions driving the operation
of the LCD Panel. (NOTE: The TCON Board is not available as a
replacement part for all models).
KDL-32EX421/32EX423/32EX520/32EX521/32EX523/40EX520/40EX521/40EX523/46EX520/46EX521/46EX523
SECTION 3 - CHASSIS OVERVIEW
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