Circuit Descriptions, Abbreviation List, And Ic Data Sheets - Philips 32PF9968/10 Service Manual

EN 50 9. TPM1.2HU LA

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets

Index of this chapter:
9.1 General Description
9.2 Block Diagram
9.3 Feature Description
9.4 I/O PIN Definition
9.5 Abbreviation List
9.6 IC Data Sheets
Note:
• Only new (not recently published) circuits are described
here. For the other circuit descriptions, see other Service
Manuals.
• Figures can deviate slightly from the actual situation, due
to different set executions.
• For a good understanding of the following circuit
descriptions, please use the wiring, block and circuit
diagrams. Where necessary, you will find a separate
drawing for clarification.
9.1 General Description
This LCD-TV, supports ATV NTSC / DTV ATSC (RF), YC,
CVBS. Also Y PbPr signal input from SDTV to HDTV (480i,
480p, 720p, 1080i/1080p 60Hz).
9.2 Block Diagram
Combo
I2C
Tuner
IFAT +/-
TDQU4X524A
HDMI-3 side
DDC
24C02
HDMI-1
HDMI-2
Audio R/L of AV1 CVI
Audio R/L of AV2 CVI
Audio R/L of scaler Side
(CVBS/YC)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
CVBS
SIF
AV CVI x 2
CVBS/YCx1 ( side )
DDC DDC
24C02 24C02
Figure 9-1 Functional Diagram
It uses the Media Tech MT5381 IC, which has embedded ADC
for HD/Analog D-sub input (no use), 3 digital ports for HDMI 1.3
decoder digital data input, SD ADC for CVBS/YC input, video
decoder, audio demodulator, audio decoder, audio DSP
processing, USB 2.0 receiver, CC decoder, Micro controller,
OSD engine and up / down scaler.
MediaTek MT5381 is a highly integrated SOC, which include
Front-end demodulator, DTV back-end decoder and TV
controller. MT5381 support transport de-multiplexer, MPEG-2
video decoder,AC3 audio decoder, LVDS transmitter, and TV
decoder.
MT5381 embedded the MDDi de-interlacer to generate very
smooth picture quality for motion. 3D com filter also recovery
high detail for still picture. The special color processing
technology provides favorite and natural color for TV.
To enrich the features of DTV,MT5381 support HDMI receiver,
integrated with high speed VGA ADC, high resolution Video/
Audio ADC, 90dB Audio DAC and 12-bit Video DAC. It will
provide very fine quality for TV.
NAND Flash
DDR 2 x 1 NAND Flash
4MByte
4MByte
32MByte
MT5381
.MCU
.DTV receiver
.MPEG/video/audio decoder
.Scaling
.Video enhancement
.3D comb
.LVDS Transmitter
.HDMI 1.3
.ADC
TDA8932/3
SPDIF Out
LVDS to panel
RC
UART for ISP & Factory alignment
Keys
NVM
NVM
24C16
24C16
I2C
speakers