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IC Block Diagrams
IC001 < Audio AMP.> TA8200AH
+
6
Ripple Filter
IN 1
IN 1
+
4
400Ω
5
+
3
Pre-GND
400Ω
+
1
IN 2
IN 2
+
2
IC1401 < VIDEO Switch > MM1188XS
1
2
IN 3
Vcc
SW2
SW1
L
L
H
L
-
H
IC281 <SECAM Decoder> LA7642N
EQU-Adj
Vcc
16
15
ACC
Bell/EQU
Adj
1
2
F0-Fil
Kil-Fil
+
9
Vcc
+
OUT 1
7
AMP.1
20KΩ
PW-GND
10
20KΩ
OUT 2
12
AMP.2
+
11
8
+
SW
CLAMP
CLAMP
CLAMP
15K
6dB
3
5
6
4
SW1
OUT
GND
IN1-Y
OUT
IN 1
IN 2
IN 3
Kil-Out
AV/SECAM
Video In
4.43MHz In
13
14
12
System
SW3
Bell/EQU
PLL
SW1
Filter
DET
LIM
KILLER
ID-KIL
F0 Adj
ID
4
5
3
4.43DC
ID-Fil
4M-DC
R-Y Out
IC501 < Vertical Output > LA78041
Vcc
+
RL
RL
+
SW
6dB
(-6dB)
8
9
7
IN1-C
SW2
IN 2
SC-In
4MHz In
11
9
10
Pulse
SW2
DET
VCO
Pulse
I/F
Filter
Clamp
SW/ALC
6
7
8
B-Y Out
GND
-7-
Thermal
Protection
-
AMP
+
Pump
Up
1
3
2
4
5
6
7
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