Philips ME8 Service Manual page 118

EN 118 9. Q528.2E LA
9. Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 Main Supply
9.3 Abbreviation List
9.4 IC Data Sheets
Notes:
• Only new circuits (circuits that are not published recently)
are described.
• 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 (chapter 6) and
circuit diagrams (chapter 7). Where necessary, you will find
a separate drawing for clarification.
9.1 Introduction
This chassis (member of the "TV522" platform) is a derivative
from the Q528.1E LA chassis (member of the "TV520"
platform). It comes with a new styling called "ME8(+)" which, in
some sets, incorporates a light strip on the front side of the set
referred to as "Light Guide". This generates a diffuse light
through a light pipe.
TV522/82M/22M - Architecture Block Diagram
HDMI Side
HDMI 1
ADI8191 ADI8191
HDMI 2
HDMI switch HDMI switch
HDMI 3 /
MPEG4
Hybrid Tuner Hybrid Tuner
Saw Saw
DDR1 DDR1
64MB 64MB
32 32
STi7101 STi7101
MPEG4 HD MPEG4 HD
Circuit Descriptions, Abbreviation List, and IC Data Sheets
DDR-II DDR-II
64MB 64MB
NXP NXP
PNX8541 PNX8541
Digital Colour Decoder Digital Colour Decoder
10-bit video 10-bit video
MASTER IF MASTER IF
3-field HD MADI 3-field HD MADI
DVB-T DVB-T
MPEG2 MPEG2
TDA10048 TDA10048
CI
8 8
FLASH FLASH
Figure 9-1 Architecture of TV522 platform
Some more delta's w.r.t. the previous Q528.1E LA chassis are:
• The addition of a PCMCIA controller (STI7101) with
Common Interface slot.
• The implementation of an integrated audio Class-D Power
Amplifier (TDA8932BTW/N2).
• Integrated SAW filter for IF filtering.
• Decoding of MPEG4-encoded transport streams through
the STi7101 MPEG4 PCMCIA decoder/controller.
• Reception of DVB-C (in some sets).
• Some modifications to the on-board DC-DC converters.
The STi7101 MPEG4 decoder/PCMCIA controller has been
described in the Q528.1E LB Service Manual. Unlike there, in
current chassis this device is now incorporated onto the SSB
(no bolt-on panel needed).
For a description of all other circuitry, refer to the Q528.1E LA
Service Manual.
9.1.1 Features
The main features for this chassis are:
• The introduction of a module referred to as "Light Guide" on
the front side of the set (in some sets).
• Support of DVB-C reception (in some sets).
• For all other features: refer to the Q528.1E LA/LB Service
Manual.
9.1.2 TV522 Architecture Overview
For details about the chassis block diagrams refer to chapter
"Block diagrams, Test Point Overview, and Waveforms". An
overview of the TV522 architecture can be found in next figure
"Architecture of TV522 platform".
DDR-I DDR-I
32MB 32MB
32 32
32 32
YUV20 YUV20
PNX5050 PNX5050
HD-DNM HD-DNM
FLASH FLASH
64MB 64MB
HP Amp HP Amp
Class D Class D
TDA8932T TDA8932T
Matrix Matrix
RGB30 RGB30 Matrix Matrix
HD@50Hz HD@50Hz
Pac3 Pac3 HD@50Hz HD@50Hz
HD@100Hz HD@100Hz
HD@100Hz HD@100Hz
FHD@50Hz FHD@50Hz
FHD@50Hz FHD@50Hz
AmbiLight 2
PCI/XIO
USB2.0 USB2.0
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