Circuit Descriptions, Abbreviation List, And Ic Data Sheets - Philips TC8.1L CA Service Manual

EN 24 9. TC8.1L 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 Name of IC
IC201 TMPA8891CXBNG
TU101 FSBP05P-3-E
Z101 K2966M
IC001 AT24C08A
IC601 TDA7496SA
IC901 HCF4053B
IC301 LA78040N-E
Q402 BU4508DZS
IC801 TEA1506P
IC1001 MSP3425G
9.2 Chassis Block Diagram
Below find the chassis block diagram:
TUNER
( TU101)
SAWF
( Z101)
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Function
MCU & Decoder
Tuner
SAW Filter
EEPROM
Audio output amplifier
Analog Switch
Vertical Deflection Output IC
Horizontal Output IC
Power Controller IC
Multi Sound Processor
AV output
AV1 AV2
TDA7496
4053BP
SA
( IC901)
(IC601)
Video &
Audio
Audio
MSP3425
(IC1001)
SIF
Decoder & MCU
TMPA8891
(IC201)
SDA SCL
EEPROM
( IC001)
Figure 9-1 Chassis block diagram
R
G CRT
Board
B
Horizontal
Output circuit
+24V
Vertical Output
LA7804
( IC301)
CRT
H_17630_018.eps
271107