Section vi: dual circuit, Outline, Principles of operation – Toshiba TW40F80 User Manual
Page 45: System component diagram of dual unit, Fig. 6-1
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45
3. SYSTEM COMPONENT DIAGRAM OF DUAL UNIT
From tuner
SY
SC
Video/color/
deflection
process IC
µPC1832GT
R- Y
B- Y
R- Y
B- Y
Y
I
Q
Control
Y
I
Q
OSD
ON-screen
display super
impose
TC4W53F
MC74HC4053F
2M memory X2
MSM518221-30ZS
Sub screen
process IC
TC9092AF
Main/Sub
picture
superimpose
MC74HC4053F
Y
I
Q
Y
I
Q
Y
I
Q
I
2
C BUS
Sub screen
control micro-
processor
CXP85116B-514Q
I
2
C BUS
Wide aspect
conversion
TC9097F
G
B
R
To CRT
V/C/D IC
TA1222N
From tuner
SY
SC
From main microprocessor
Fig. 6-1
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