Philips 32PFL5404H/12 Service Manual

Circuit Descriptions
EN 41Q543.1E LA 7.
2009-Nov-20
7.4 Front-End
The Front-End consist of the following key components:
• Tuner HD1816AF
• IF demodulator DRX3926K
• AGC amplifier UPC3221GV
• SAW filter 36M125.
Below find a block diagram of the front-end application.
Figure 7-6 Front-End block diagram
The DRX3926K is a multi-standard demodulator supporting
DVB-C, DVB-T and analogue standards. The demodulated
digital stream is fed into the parallel transport stream data ports
of the PNX8543. The demodulated analogue signal in the form
of CVBS is connected to the analogue video CVBS/Y input
channel, while the SIF is connected via the SSIF2 positive input
port.
7.5 HDMI
In this platform, the TDA9996 HDMI multiplexer is
implemented. The EDID contents are no longer stored in a
separate EEPROM, but directly in the multiplexer. Each input
has its own physical sub address: the first 253 bytes are
common, where the last 3 bytes define the specific input. The
EDID contents are, at +5V power-up, downloaded to RAM. The
following figures show the HDMI input configuration and EDID
control.
Figure 7-7 HDMI input configuration
Figure 7-8 EDID control (embedded EDID)
Some delta’s w.r.t. TDA9996 compared to earlier chassis/
platforms are:
• +5V detection mechanism
• stable clock detection mechanism
• integrated EDID
• RT control
• HPD control
• TMDS output control
• CEC control
• new hot-plug control for PNX8543 for 5th HDMI input
• new EDID structure: EDID stored in TDA9996, therefore
there are no EDID pins on the SSB. Only in the event of a
5th HDMI input, an additional EEPROM is foreseen, as
was implemented in previous platforms.
Some delta’s with respect to PNX8543 compared to earlier
chassis/platforms are:
• 2 HDMI inputs (A & B)
• HDMI deep colour RGB/YCbCr 4:4:1 10/12 bit detection.
After replacement of the TDA9996 HDMI multiplexer, the
default I
2
C address should be reprogrammed from C0 to CE,
and the HDMI EDIDs should be reprogrammed as well. Both
actions should be executed via ComPair.
18440_211_090227.eps
090227
I2C-TUNER
IF-AGC
NXP Hybrid
Tuner
SAW
Filter
IF Amplifier DRX3926K PNX8543
I2C-SSB
CVBS
2nd SIF
TS
18440_213_090227.eps
090720
TDA9996
1P06 1P04 1P03 1P02
1P 05
HDMIA-RX
ARX
BRX
CRX
DRX
HDMIB-RX
PNX8543
D
C
A
B
Out
1M96
A B
HDMI 2
HDMI Side
(optional)
HDMI 3
(optional)
HDMI 1
HDMI 4
(optional)
Edid
18440_214_090227.eps
090720
TDA9996
CPU
I
2
C
Platform with embedded EDID
4 × HDMI
inputs
253 common Bytes
+ 1B sub addres of
S ource Physical Address
+3B for input A
+3B for input B
+3B for input C
+3B for input D
EDID : 253 B
3B 3B 3B 3B

Philips 32PFL5404H/12 Specifications

Picture and Display

aspect ratio	Widescreen
brightness	450 cd/m²
response time	5 ms
viewing angle	178º (H)/178º (V)
diagonal screen size	32 inch / 81 cm
panel resolution	1366 x 768p

Supported Display Resolutions

computer formats	640 x 480 60 Hz, 800 x 600 60 Hz, 1024 x 768 60 Hz, 1360 x 768 60 Hz, 1920 x 1080 60 Hz
video formats	480i 60 Hz, 480p 60 Hz, 576i 50 Hz, 576p 50 Hz, 720p 50, 60 Hz, 1080i 50, 60 Hz, 1080p 24, 50, 60 Hz, 1080p 24, 25, 30 Hz

Sound

output power (RMS)	2 x 10 W
sound system	Nicam Stereo

Power

ambient temperature	5°C to 35°C
mains power	220–240 V, 50 Hz
power consumption (typical)	83 W
standby power consumption	0.15 W

Weight and Dimensions

set dimensions	810 x 519 x 95 mm
set dimensions with stand	810 x 570 x 230 mm
weight including packaging	16 kg
product weight	10 kg
product weight with stand	13 kg
box dimensions	981 x 651 x 199 mm
VESA wall mount compatible	200 x 200 mm