Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.2 Main Supply
9.4 Abbreviation List
9.5 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.
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.
•
The addition of the TDA10023 Channel Decoder to support
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”.
Figure 9-1 Architecture of TV522 platform
Matrix
HD@50Hz
HD@100Hz
FHD@50Hz
Matrix
HD@50Hz
HD@100Hz
FHD@50Hz
32
DDR-II
64MB
PNX5050
HD-DNM
PCI/XIO
32
DDR-I
32MB
TV522/82M/22M - Architecture Block Diagram
NXP
PNX8541
Digital Colour Decoder
10-bit video
3-field HD MADI
DVB-T
MPEG2
USB2.0
FLASH
64MB
Pac3
HP Amp
ADI8191
HDMI switch
TDA10048
Hybrid Tuner
Saw
MASTER
IF
FLASH
8
STi7101
MPEG4 HD
32
DDR1
64MB
CI
AmbiLight 2
Class D
TDA8932T
YUV20
RGB30
HDMI Side
HDMI 1
HDMI 2
HDMI 3 /
MPEG4
Matrix
HD@50Hz
HD@100Hz
FHD@50Hz
Matrix
HD@50Hz
HD@100Hz
FHD@50Hz
32
DDR-II
64MB
PNX5050
HD-DNM
32
DDR-I
32MB
NXP
PNX8541
Digital Colour Decoder
10-bit video
3-field HD MADI
DVB-T
MPEG2
USB2.0
FLASH
64MB
Pac3
HP Amp
ADI8191
HDMI switch
TDA10048
TDA10048
TDA10023
Hybrid Tuner
Saw
MASTER
IF
FLASH
8
STi7101
MPEG4 HD
32
DDR1
64MB
Class D
TDA8932T
YUV20
RGB30
I_17960_070.ep
s
22050
8
