28
27
IC BLOCK DIAGRAM
IC, TA1230Z
IC, AN5285K
IC, LA7832
IC, TA1201CN
IC, LA4600
IC, TC90A45P[TV-21ST3]
IC, STR-G6651
IC, MM1454XD
IC, MM1311AD
BUF
4.5fH
TRAP
SUB SIGNAL
BPF
3.5fH
BPF/TRAP
LIMMIT
FM
DEMOD.
15KHz
LPF
15KHz
LPF
COMP.
DE-
EMPHA.
DE-
EMPHA.
MATRIX
MATRIX
CONT.
3fH
TRAP
Q-DET.
1KHz
BPF
32fH
OSC
32fH 32fH
FILTER
CONTROL
GND
VCC
MONO
COMPULSION
Q SIGNAL
OFFSET
REMOVEL
BIAS
MODE
SW
GND
FILTER
AUTO ADJ.
BAND
GAP
REG.
DISCRIMI-
NATION
12
13
5
6
7
8
9
10
16
17
4
3
1
18
14
11
15
20
19
2
MPX
IN
R
L
MONO
STEREO
BILINGUAL
MONO
OUT
MUTE
MAIN OFFSET
REMOVEL
SUB OFFSET
REMOVEL
LIMITER
REMOVEL
L OUT
R OUT
56
55
54
53
52
51
50
SIF
GND
SIF
VCC
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
D
GND
32FH
VCO
H
AFC
H
OUT
SYNC
OUT
FBP
IN
X
RAY
ABL
TV IN
ACL
EXIT
VIDEO
BLANK
DET
AV SW
OUT
DC
RESET
Y IN
AFT
CHROMA
IN
VCC
TV DET
OUT
SIF
VCC
PIF
TANK
PIF
TANK
SIF
GND
LIMIT
IN
AUDIO
TV IN
DE
EMPHASIS
L AUDIO
IN
R AUDIO
IN
34
33
32
31
30
29
24
25
26
27
28
19
20
21
22
23
14
15
16
17
18
D.VCC
9
10
11
12
13
GND
4
5
6
PIF
END
PIF
IN
R OUT L OUT RF
AGC
SIF
TANK
AGC
FILT
PIF
IN
PIF
VCC
LOOP
FILT
APC
FILT
VCXO
FAST
BLANKING
R IN
G IN
B IN
R OUT
G OUT
B OUT
V OUT NFB
V RAMP
V SEPA
FILT
SCL
SDA
7
8
1
2
3
FM
DET
LIMMITTER
VCO
90
SW
VCXO
AFC
KILLER
COLOR
ACC
AFT
BPF
ACC
CLAMP
3.58
TRAP
Y-DL
LPF
32fH
VCO
H C/D
AFC-1
X-RAY
H.RAMP
H.OUT
AFC-2
V C/D
BUS INTERFACE
ANALOG RGB
LOCK
DET
AGC
DET
RF
AGC
0
DET
1
DET
x2
SHARPNESS
CONTRAST
BRIGHT
MATRIX
CUT OFF/
DRIVE
V.RAMP
H.VCC
ATT.
TNT
DEMODU
DC P.B.
SMOOTH
WPS
H SYNC SEPA.
V SYNC SEPA.
CLAMP
ADC
V IN
FSC IN
PLL
SYSTEM CLOCK
1H LINE
MEMORY
BPF
BPF
DINAMIC
COM FILTER
BPF
COLOR
KILLER
DAC
Y OUT
C OUT
KIL
ADAC
1/2
13
7
15
10
4
4
1
7
10
R IN
L IN
CTL
50K
50K
VCA
Level
Sensor 1
Level
Sensor 1
Level
Sensor 2
SW
CTL
VCA
9
2
5
6
GND
VREF
LS1
LS2
V/I REG.
R OUT
L OUT
3
8
VCC
10
9
8
7
4
1
2
3
5
6
STANDBY SW
STANDBY SW
P.P
GND
R OUT
L OUT
R IN
GND
L IN
CH1
INPUT AMP
CH2
INPUT AMP
PRE DRIVE
AMP
PRE DRIVE
AMP
OUTPUT
AMP
OUTPUT
AMP
REF
AMP
Vcc
Rf1
Rf2
RN11
RN12
TSD PROTECTER
REPLE FILTER
FILTER
NOISE
PREVENTION
4
1
2
5
3
START
VCC
O.V.P
LATCH
DRIVE
OSC
T.S.D
REG
COMP2
FB OCP
SOURCE
GND
DRAIN
COMP1
Vth(2)
Vth(1)
1
2
3
4
5
6
7
GND
PULSE
VCC
OSC
STOP
INPUT
V OUT
PS
V OUT
POMP UP
VERTICAL
DRIVE
VERTICAL
OUTPUT
THERMAL
PROTECT
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BIAS
R IN
MUTE
QSUR
DET
QF6
R OUT
L OUT
GND
QF5
QF4
QF3
QF2
QF1
V REF
L IN
VCC
QSURROUND
-6dB
6dB
6dB
6dB
-6dB
14
8
2
32
13
7
1
31
11
5
9
3
-6dB
15
26
10
17
21
GND
28
V OUT
Y IN
Y OUT
C IN
C OUT
VCC
TV-L
V1-V
V2-V
V3-V
V1-Y
V2-Y
V1-C
V2-C
TV-L
V1-L
V2-L
V3-L
TV-R
V1-R
V2-R
V3-R
BIAS
SDA
SCL
MUTE
ADR
S2
Y IN
S1
L OUT
18
4
30
19
16
12
6
23
24
29
20
27
22
25
BIAS
I C LOGIC
2
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