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TPT1.2A LA
9. Circuit Descriptions, Abbreviations List and IC Data Sheets
Index of this chapter
9.1 Circuit Descriptions
9.2 Abbreviations List
9.3 IC Data Sheets
9.1
Circuit Descriptions
This LCD-TV PFL7422 use 1920X1080 WUXGA panel .Support PC analog input up to
PAL D/K PAL B/G PAL I SECAM B/G and SECAM D/K(RF), Y/C, CVBS. Also for Y Pb Pr signal input from SDTV to HDTV (480i, 480p,
720p, 1080i ,1080P 60Hz and 576i, 576p, 720p, 1080i, 1080P 50Hz), digital port for HDMI(480iW, 576iW, 480p, 576p, 480pW, 576pW, 720p
50/60Hz, 1080i 50/60Hz, 1080p 50/60Hz.)
.
This F3 platform LCD - TV use Trident LX66 scalar IC , which has embedded ADC for HDTV/Analog D-sub input up to 108MHz/10bit,
digital port for HDMI/DVI decoder digital data input , 3D digital comb video decoder for CVBS and Y/C input, TXT decoder and built-in dual
8/10-bit LVDS transmitter scaler .
There are video processing and some audio function in scaler board. The 47/42/37PFL7422 uses Trident SVP-LX66 as Scaler engine, which
has embedded Analog D-SUB, digital HDMI receiver, scaling input signal to panel OSD mapping and simple 3D de-interlacer. The extra DDR
is to accomplish video frame rate conversion and to provide OSD and de-interlacer with enough memory.
The external CPU (M30620SPGP) can provide control signals such as backlight control, RC (Remote Control), detect keypad input, IIC I/O
communication, TV tuning control, sound control and power control .
Embedded Video decoder is used to execute all video signal processing except HDTV. HDTV is go through embedded ADC converter.
3D comb and 3D de-interlacer are included in scaler. Scaler can decode CC, TT, V-chip data to display.
In AP model, Tele-text (TT) function is necessary, but China Model is no need.
One audio decoder MSP34XXG is used for TV sound processing, and output to TPA3100D2PHPR . Post D-class amplifier is in scaler
board.
9. Circuit Descriptions, Abbreviations List and IC Data Sheets
Circuitry Description for 37&42TA2800 model
Fig 1 47/42/37PFL7422 Video block diagram
1920X1080 60Hz mode
,and support NTSC-M
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