July 2009 LCD DV 42LH40
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MAIN PWB SECTION
MAIN PWB SECTION
The Main PWB also contains the T-CON (TFT Driver) section. This set does not use a normal T-CON
board.
There are two LVDS cable feeds that go directly to the Panel. These carry the TruMotion 120Hz duel
12 bit LVDS, (video signal) that has already been prepared for the panel drivers.
The Main board receives its operational B+ from the Power Supply via P700.
STAND-BY
• STBY 5V pins 7~10
The Main board also develops several B+ sources on the board.
LVDS
• VCC-LCM+3.3V,
• VDD-LCM+16V,
• VGH+24V
• VGHM+24V
• VGL-5V
AUDIO
• 3.3V
• 1.8V
Mstar IC100 (Video) / MICROPROCESSOR
• 1.2V, 1.26V, 1.8V, and 3.3V
RUN
• 12V pins 13 and 14
• 24V pins 17 and 18.
TUNER and VSB CIRCUIT
• 9V which is used to make 5V TU
• 5V
• 3.3V
• 1.2V
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