7
6
TPT1.2A LA
9. Circuit Descriptions, Abbreviations List and IC Data Sheets
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
Circuitry Description for 37&42TA2800 model
This LCD-TV PFL7422 use 1920X1080 WUXGA panel .Support PC analog input up to
1920X1080 60Hz mode
,and support NTSC-M
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.
Fig 1 47/42/37PFL7422 Video block diagram
Содержание 37PFL7422/79
Страница 27: ...27 TPT1 2A LA 6 Block Diagram 24V TPA3100 U6301 SOUND_EN L5972D013TR U7207 iTV_PWR 12V_iTV S A13 S A15 ...
Страница 44: ...Scaler Board Layout Top Side Part 1 44 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts ...
Страница 45: ...Scaler Board Layout Top Side Part 2 45 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts ...
Страница 46: ...Scaler Board Layout Top Side Part 3 46 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts ...
Страница 47: ...Scaler Board Layout Top Side Part 4 47 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts ...
Страница 49: ...6 5 4 Scaler Board Layout Bottom Side Part 1 49 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts A B ...
Страница 50: ...50 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side Part 2 3 2 1 A B ...
Страница 51: ...6 5 4 C D Scaler Board Layout Bottom Side Part 3 51 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts ...
Страница 52: ...3 2 1 C D 52 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts Scaler Board Layout Bottom Side Part 4 ...
Страница 66: ...66 TPT1 2A LA 7 Circuit Diagrams and PWB Layouts Key Board Layout Bottom Side ...
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Страница 89: ...89 TPT1 2A LA 9 Circuit Descriptions Abbreviations List and IC Data Sheets Pin assignment ...