Gs1-Board; Hsl-Board; H4L-Board; H3L-Board - Sony KLV-40ZX1M Training Manual

GS1-Board

Except for some regulator circuits on the B-Board, the GS1-Board is the
power supply system board, which includes the following components
and circuits.
• Main Power Supply
o 12V for Audio, BT3-Board, and LD1-Board Circuits
• Standby Power Supply
o 3.3V for standby circuits
• 390V for Backlight Circuits (LD1-Board)
• 18V for Backlight Circuits (LD1-Board)

HSL-Board

• HDMI Terminal Connection
• EDID EEPROM
• USB Service Only Terminal Connection

H4L-Board

• IR Sensor

H3L-Board

• Power LED
• Timer LED
• Standby LED

H1L-Board

• Power Key
• Function Keys
CTV-54

TV-STAND

The TV-STAND contains the speaker system which includes left, right,
and sub-woofer speakers. The speaker system is replaced as assembly
or speaker module.
NOTE: The LCD Panel (video) will work fine with the TV Stand disconnected.
The audio output mute lines on the BM3-Board are activated.

LCD Panel Assembly

The LCD Panel Assembly includes the LCD Panel, BT3-Board (TCON/
HFR), 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. The panel resolution on the EX1S chassis model
is 1920 X 1080 lines. This is considered a 1080P Full High-Definition
model.
The BT3-Board (TCON & HFR) performs all the control, timing, charge,
and discharge functions driving the operation of the LCD Panel. The HFR
(High Frame Rate) section performs the 60Hz to 120Hz frame refresh rate
conversion.

All-White LED Edge Backlight System

Reference Figure 1-3
The top, bottom, left, and right edge LEDs generate the white light that is
captured and evenly spread across the panel by a Light Guide Plate. The
captured light then passes through the liquid crystals in the LCD Panel.
The light guide operates in the same way a fiber optic cable operates.
There is a light source which generates the light and the fiber optic cable
(glass fibers) retains the light within its boundaries.
Chassis Layout
7