Circuit Descriptions, Abbreviation List, And Ic Data Sheets - Philips 21PT2327/79 Service Manual

EN 28 9. TC8.1A CA

9. Circuit Descriptions, Abbreviation List, and IC Data Sheets

Index of this chapter:
9.1 General
9.2 Chassis Block Diagram
9.3 Brief IC Descriptions
9.4 Abbreviation List
Notes:
• 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 Toshiba TPMA8891 processor/decoder,
and has the following key components:
Item Part No.
IC201 13-PA8891-PSP
TU101 07-389FI5-NA3G
Z101 45-SAW296-6M00G K2966M
IC001 13-24C08A-PUP27
IC601 13-TDA749-6AS
IC901 13-000040-53P
IC301 13-LA7804-0NS
Q402 11-4508DZ-0CX
IC801 13-TEA150-6PP
9.2 Chassis Block Diagram
Below find the chassis block diagram:
TUNER
( TU101)
SAWF
( Z101)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Name of IC Function
TMPA8891CXBNG MCU & Decoder
FSBP05P-3-E Tuner
SAW Filter
AT24C08A EEPROM
TDA7496SA Audio output amplifier
HCF4053B Analog Switch
LA78040N-E Vertical Deflection Output IC
BU4508DZS Horizontal Output IC
TEA1506P Power Controller IC
AV1 AV2
4053BP
( IC901)
Video &
Audio
Decoder & MCU
TMPA8891
(IC201)
SDA SCL
EEPROM
( IC001)
Figure 9-1 Chassis block diagram
AV output
TDA7496
SA
(IC601)
Audio
CRT
R
Board
G
B
Horizontal
Output circuit
+24V
Vertical Output
LA7804
( IC301)
CRT
H_17130_034.eps
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