Philips Q552.2L Service Manual page 52

EN 52 7. Q552.2L LA
and vivid colour management. High flat panel screen
resolutions and refresh rates are supported with formats
including 1366 × 768 @ 100Hz/120Hz and 1920 × 1080 @
100Hz/120Hz. 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
7.8 Ambilight
Sets in the xxPFL7606D/xx range are equipped with Ambilight.
For the implementation of Ambilight, refer to
1
M
PNX85500 CPLD SPI SPI
9
5
SSB
Figure 7-8 Ambilight configuration
The Ambilight implementation consists of 2 separate units in
the set, where the Ambilight module located on the right (seen
from the back of the set) acts as a Master and the module on
the left acts as a Slave.
The NVM is located on the Master Ambilight module. This
module communicates via the SPI communication protocol
2011-Jul-15
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 7-7 PNX855xx functional diagram
Figure 7-8.
1 1 1
M M M
PWM
AmbiLight AmbiLight
8 8 8
3 5 6
19111_009_110519.eps
combination with LED backlights for optimum contrast and
power savings up to 50%.
For a functional diagram of the PNX855xx, 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
with the CPLD located on the SSB whereas the Slave Ambilight
module communicates via the PWM communication protocol
with the Master Ambilight module.
The supply voltage of the modules is +24 V.
Refer to
implementation.
110519
back to
div. table
7-7.
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
Figure 7-9 and Figure 7-10 for the Ambilight board
18770_241_100201.eps
100219