Philips P&S 22HFL4372D/10 Service Manual page 42

EN 42 7. Q552.1HE LA
The TV550 combines front-end video processing functions,
such as DVB-T channel decoding, MPEG-2/H.264 decode,
analog video decode and HDMI reception, with advanced
back-end video picture improvements. It also includes next
generation Motion Accurate Picture Processing (MAPP2). The
MAPP2 technology provides state-of-the-art motion artifact
reduction with movie judder cancellation, motion sharpness
and vivid colour management. High flat panel screen
resolutions and refresh rates are supported with formats
including 1366 × 768 @ 100 Hz/120 Hz and 1920 × 1080 @
2010-Nov-19
Circuit Descriptions
PNX85500x
TS input
CI/CA
TS out/in for
PROCESSOR
PCMCIA
DVB-T/C
DVB
channel decoder
VIDEO
CVBS, Y/C,
DECODER
RGB
Low-IF DIGITAL IF
MPEG/H.264
AUDIO DEMOD
SSIF, LR
AND DECODE
SPDIF AUDIO IN
HDMI
HDMI
RECEIVER
SYSTEM
CONTROLLER
(8051)
2
I C GPIO IR
Figure 7-8 PNX85500 functional diagram
100 Hz/120 Hz. The combination of Ethernet, CI+ and H.264
supports new TV experiences with IPTV and VOD. On top of
that, optional support is available for 2D dimming in
combination with LED backlights for optimum contrast and
power savings up to 50%.
For a functional diagram of the PNX85500, refer
to Figure
MEMORY
CONTROLLER
MPEG
SYSTEM
PRIMARY
VIDEO
OUTPUT
AV-PIP
SUB-PICTURE
3D COMB
SECONDARY
VIDEO
OUTPUT
Motion-accurate
VIDEO
pixel processing
DECODER
SCALER,
DE-INTERLACE
AND NOISE
REDUCTION
AUDIO DSP
450 MHz
AV-DSP
560 MHz
DRAWING
MIPS32 ENGINE
24KEf CPU
DMA BLOCK
2
ADC SPI UART I C GPIO Flash USB 2.0
x 8
back to
div. table
7-8.
LVDS for
flat panel display
LVDS
(single, dual or
quad channel)
VIDEO
analog CVBS
ENCODER
AUDIO DACS analog audio
2
I S
AUDIO OUT
SPDIF
SD Ethernet
Memory MAC
Card
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