Y/C/AUDIO/HEAD AMP/21PIN/IN/OUT 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
YNP
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
J4501
2
1
6
3
8
20
19
Q4507
PERI SW
Q4509
AMP
Q4505
MUTE SW
L4001
TRAP
Q4007
AMP
Q4501, Q4502
BUFFER
D4510
D4511
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)
TU_AUDIO_MUTE_H
MICON/
OPE.
VV-H
EXT_IN_L
TV
TU_AUDIO
TU_VIDEO
Y/C_VIDEO
Y/C_AUDIO
Q4003
V.REC
ST SW
2
PRE
AMP
H-2
44
69
4
2
J701
FRONT
AUDIO
FRONT
VIDEO
CLOCK
DEIVER
50
SYNC.
SEP
V.SYNC
MICON/
OPE.
Q4010
BUFFER
2FSC_A
AUDIO SIGNAL (PB)
AUDIO SIGNAL(REC)
RECORD LUMINANCE SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD COLOR SIGNAL
TUNER VIDEO SIGNAL
PLAYBACK COLOR SIGNAL
TUNER AUDIO SIGNAL
