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IC Block Diagrams
TDA4665T <1H Delay Line, IC181>
16
SIGNAL
(R-Y)
CLAMPIMG
colour-difference
input signals
14
SIGNAL
(B-Y)
CLAMPIMG
9
analogure supply
Vp1
5
SANDCASTLE
DETECTOR
Sandcastle
pulse input
TDA4665
TDA8395T <SECAM Decoder, IC161>
CVBS
16
LINE
MEMORY
pre-amplifiers
LINE
MEMORY
FREQUENCY
PHASE
DETECTOR
digital supply
10
Gnd1
CLOCHE ref.
TUNING
BANDGAP
CLOCHE
ACC
INTER-
CONTROL
FACE
1
15
f ref./IDENT
SAND
SAMPLE
AND
HOLD
SAMPLE
AND
HOLD
3MHz shifting clock
DIVIDER
BY 192
6MHz
LP
CCO
1
Vp2
PLL ref.
Vp
3
5
8
TUNING
DE-
PLL
EMPHASIS
SWITCHING
IDENT
-55-
11
(R-Y)
LP
colour-difference
Addition
output
output signals
stage
buffers
12
(B-Y)
LP
DIVIDER
BY 2
3
Gnd2
GND TEST
6
2
TDA8395
9
-(R-Y)
10
-(B-Y)
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- Specifications
- Lamp Replacement
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