Circuit Descriptions, Abbreviation List, And Ic Data Sheets - Philips TC7.1U CA Service Manual

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Circuit Descriptions, Abbreviation List, and IC Data Sheets

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 General
9.2 Brief IC Descriptions
9.3 Abbreviation List
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
General
This chassis uses the Philips TDA12000H processor/decoder,
and has the following key components:
IC200: TDA12000H/N1F00 MCU and Decoder.
X100: D9453D SAW Filter.
X101: F9370 SAW Filter.
TU100: TDQU2-007A ATSC 2IN1 Tuner.
IC001: M24C64-WBN6P EEPROM.
IC601: TEA2025B2X2W Audio output amplifier.
IC301: STV8172A Vertical Deflection Output IC.
Q405: 2SD2638 Horizontal Output IC.
IC801: STR-W6735 Power Controller IC.
CRT: 29" CRT (50Hz) A68QFN893X004.
IM101: Digital TV standard decode IC TVP9005 (for digital
module).
II101: ATSC QAM receiver and demodulator (for digital
module).
IM201: 8MX16 DDR EDD1216AATA (for digital module).
IM102: 16MB FLASH S29AL016D70TFI02 (for digital
module).
Figure 9-1 Blockdiagram TDA12000H processor/decoder IC200
TC7.1U CA
9.2
Brief IC Descriptions
9.2.1
IC200
The UOCIII series combines the functions of a Video Signal
Processor (VSP) together with a FLASH embedded TEXT/
Control/Graphics microcontroller (TCG microcontroller) and
US Closed Caption decoder. In addition the following functions
are added:
Adaptive digital (4H/2H) PAL/NTSC comb filter.
Teletext decoder with 10 page text memory.
Multi-standard stereo decoder.
BTSC stereo decoder.
Digital sound processing circuit.
Digital video processing circuit.
The UOCIII series consists of the following 3 basic concepts:
Stereo. These versions contain the TV processor with a
stereo audio selector, the TCG microcontroller, the multi-
standard stereo or BTSC decoder, the digital sound
processing circuit and the digital video processing circuit.
Options are the adaptive digital PAL/NTSC comb filter and
a teletext decoder with 10 page text memory.
AV stereo. These versions contain the TV processor with
stereo audio selector and the TCG microcontroller. Options
are the digital sound processing circuit, the digital video
processing circuit, the adaptive digital PAL/NTSC comb
filter and a teletext decoder with a 10 page text memory.
Mono sound. These versions contain the TV processor
with a selector for mono audio signals and the TCG
microcontroller. Options are the adaptive digital PAL/NTSC
comb filter and a teletext decoder with 10 page text
memory.
Block diagram is as follows:
9.
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