1-3 LCD TV DESCRIPTION
The LCD TV will contain a main board (include audio), a switching power board (include an inverter board),
an IR board, a function keyboard, an I/O board and a Headphone board. The main board and power board
will house the flat panel to control logic I2C bus, DDC, brightness control logic for LCD panel, DC-DC
conversion to supply the appropriate power to the whole board and transmitting TTL level signals into LCD
Module to drive the LCD display circuit.
The inverter board will drive the fourteen CCFLs (Cold Cathode Fluorescent Tube).
The switching power board will provides the power ON/OFF to control the TV and control LED indicator for
DPMS.
The function keyboard and Remote Control will provide the OSD control signal to the Main Board.
1-4 INTERFACE CONNECTORS
All signal connections to this product are via external connectors locating at the rear of the product. The
specifications of these connectors are listed in the following table.
External Connector Specification
AC-In AC Jack 3-male receptacle
Molded-over, shielded, 15-pin subminiature D male plug with75&
impedance. Compliance with PC 99 Color Theme. Refer to
RGB Input
Appendix B for pin layout. Molded-over, shielded, 21-pin subminiature
D male plug with75& impedance. (black)
Audio Input (L/R) RCA Jack (White/Red)
Audio Input 3.5 Mini Jack for PC Audio
Headphone Output 3.5 Mini Jack
Composite Video RCA Jack (Yellow)
Molded-over, shielded, 21-pin subminiature D male plug with75&
CVBS Input
impedance.(black)
S Video 4 Din Jack
8 |
ACEC
AOC
