Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM
X4001
4.433619MHz
84
11
19
23
26
79
75
54
Y/C/AUDIO/CCD/H.AMP
IC4001
HA118217F
18
9
21
78
73
24
52
46
4
63
62
99
81
55
58
60
R
P
35
39
42
2MLPF
HPF
ACC
CTL TRAP
fh HPF
R
P
R
P
VCA
CCD
LPF
C.K
6dB AMP
6dB AMP
N-->P
CLEAR
SYNC
C SQUELCH
SQUELCH
B.D
BPF
FBC
VIDEO ALC
DELAY
CLPF
R
P
MAIN
CONV1
MAIN
CONV2
CLPF
+
R
P
R
P
R
P
R
P
+
B.E
C.K
TRAP
LPF
+
REC
MUTE
SERIAL CONT
INTERFACE
REC
EQ
VCA
LINE
AMP
R
P
HPF
1M HPF
7M LPF
FM MOD
LAG LEAD
LPF
629
TRAP
FM AGC
P.EQ
S DL
SQPB
SQPB
G EQ
Y CCD
C CCD
LPF
28
30
31
ATT
ATT
ATT
VIDEO
AGC
R
P
D LIM
DEMO
SLPF
MAIN
DE-EMPH
CLAMP
D.E
N.C
Y APA
CLAMP
R
P
MIX
LEVELADJ
R
P
R
P
YLPF
FBC
ALC
NL EMPH
NL DE EMPH
MAIN EMPH
CARRIER
OFFSET
W.C/DC
F0/DEV ADJ
S-DET
Q4006
BUFFER
88
87
89
86
H.AMP
8
7
REC
MUTE
LINE
MUTE
ENV
DET
L4001
15.6KHz
TRAP
L4005
1
3
6
Q4004,Q4005
FE HEAD
4
ENV.DET
H.SW
MICON/
OPE.
SDA
SCL
VCR_A_MUTE
V.REC_ST_H
CTL+
CTL-
CYL.
CP4001
3
2
4
SP COM
SP-CH2 (L)
SP-CH1 (R)
CP4005
1
AUDIO PB
6
5
2
AE HEAD (+)
AUDIO REC
AE HEAD (-)
AC HEAD
4
3
CTL+
CTL-
PB SW
5
Q4002
OSC
Q4001
NORMAL A
REC ST SW
CP4004
1
2
FE HEAD (HOT)
FE HEAD (GND)
FRONT_VIDEO
FRONT_AUDIO
REC_TU_AU1
REC_TU_V
Q4003
V.REC
ST SW
2
PRE
AMP
REAR_VIDEO
REAR_AUDIO
Y/C_VIDEO_OUT
Y/C_AUDIO_OUT
IF/21PIN/
IN/OUT/
POWER
SYNC
SEP
50
VV_H
29
AGC
Q4015
PB SW
V.SYNC
YNP
H-2
VPS/PDC
IC4002
LC74793/JM
6
2
7
16
SYNC IN
X'tal IN
SDA
SCL
69
AUDIO SIGNAL (PB)
AUDIO SIGNAL(REC)
RECORD LUMINANCE SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD COLOR SIGNAL
TUNER VIDEO SIGNAL
PLAYBACK COLOR SIGNAL
TUNER AUDIO SIGNAL
REC-MUTE
ON
LINE-MUTE
ON
OFF
OFF
