A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
PLAYBACK VIDEO SIGNAL
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD LUMINANCE SIGNAL
PLAYBACK COLOR SIGNAL
TUNER VIDEO SIGNAL
DEFLECTION SIGNAL
D1004
1SS133
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
X4001
3.579545MHz
C4004
220
6.3V
YK
C4042
100
6.3V
KA
C4045
220
6.3V
K
A
C4012
22
6.3V
KA
C4023
22
6.3V
KA
C4031
3.3
50V
KA
C4034
4.7
25V
KA
C4035
1
50V
KA
C4027
33
6.3V
KA
C4064
0.022
B
C4005
0.01
F
C4006
0.015
B
C4002
0.022
100V
MKT
C4019
0.047 F
C4015
0.047 F
C4016
0.068 B
C4033
820P B
C4032
0.0033
B
C4041
0.1
F
C4044
0.1
F
C4038
180P
CH
C4036
390P
B
C4069
0.1
F
C4066
0.022
B
C4043
0.1 F
C4060
0.01
F
C4061
0.01
F
C4054
0.1 F
C4037
0.1
F
C4074
0.01
F
C4028
0.1
F
C4014
0.047
F
C4076
0.1
F
C4075
150P
CH
C4021
0.1
F
C4020
0.1
F
C4059
0.1 F
C4055_1
1B
C4029
0.01 F
R4021
22K
R4023
33K
R4022
820
R4010
3.3K
R4044
100K
R4006
47K 1/4W
R4007
39K 1/4W
R4002
10K
R4003
10K
R4047
12K
1/4W
R1025
100
R4048
68 1/4W
R4032
100 1/4W
R4004
15 1/4W
R4052
8.2K
R4053
6.8K
R4045
12K
R4054
18K
R4056
10M
R4059
10M
R4058
2.7K
R4060
1.5M
R4061
10M
R4062
3.3M
R4012_1
820
R4064
6.8K
R4068
2.2M
R4051
2.7K
R4057
6.8K
R4042
820
R4043
3.3K
R4041
1.8K
R4029
47K 1/4W
R4026
39K
R4038
680K
R4028
47K
1/4W
R4065
330K 1/4W
R4034
100K
R4033
2.2K
R4035
100K
R4015
2.2
R4011
22K
R4001
560
R4025
1.5K
R4019
330K
R4018
12K
R4017
6.8K
R4055
1K
R4020
180
R4037
390
R4024
5.6K
R4039
8.2K
C4048
10
16V
KA
C4047_1
10
16V
KA
C4057
1
50V
KA
C4053
4.7
50V
KA
C4024
100
6.3V
KA
C4046
3.3
50V
KA
C4030
10
16V
KA
C4049
10
16V
KA
C4051
33
6.3V
KA
C4052
4.7
50V
KA
C4058
47
6.3V
KA
C4062
1
50V
KA
C4063
47
6.3V
KA
C4065
1
50V
KA
C4067
1
50V
KA
C4050
0.22
50V
KA
C4025_1
220
6.3V
KA
C4010
47
6.3V
KA
Q4001
KTC3198
AUDIO
PB SW
Q4002
KTC3198
AUDIO
PB SW
Q4006
KTC3203_Y
BIAS OSC
Q4007
2SC2412K
SYNC IN
Q4011
2SC2412K
BUFFER
Q4012
2SC2412K
BUFFER
W837
W858
W818
TP4001
V.ENV
W920
Q4010
2SA1037AK
BUFFER
Q4005
KTA1266
BIAS CTL
Q4009
2SA1037AK
BUFFER
L4001
22uH 0305
L4003
100uH
0305
L4005
47uH
0305
L4006
47uH
0305
L4009
100uH 0305
L4004
22uH 0305
CP4003
TMC-T02X-E1
1
2
Q4003
KRA103RTK
SW
CP4002
IMSA-9604S-06Z14
1
2
3
4
5
6
CP4001_1
TOC-C04X-B1
1
2
3
4
DURING PLAYBACK
MEASURED WITH THE DIGITAL TESTER
NOTE:
THE DC VOLTAGE AT EACH PART WAS
CAUTION: DIGITAL TRANSISTOR
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
T4001
1626009
COIL,BIAS OSC
1
2
3
4
5
6
IC4001
LA71201M-MPB
Y/C/AUDIO/HEAD AMP IC
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53
54
55
56
57
58
59
6
60
61
62
63
64
65
66
67
68
69
7
70
71
72
73
74
75
76
77
78
79
8
80
9
H.SW
Y/C_CS
ENV_DET
Y/C_CLK
H.AMP_SW1
Y/C_DATA
P.CON+5V
P.CON+5V
VCR_A_MUTE
P.CON+5V
GND
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
ENV_DET
H.SW
SD_VIDEO
P.CON+5V
SD_SYNC
TU_VIDEO
FRONT_VIDEO
P.CON+5V
Y/C_VIDEO
TU_AUDIO
SD_VIDEO
P.CON+5V
DUMMY_V.SYNC
FRONT_AUDIO
P.CON+5V
TU_VIDEO
TU_AUDIO
SD_VIDEO
Y/C_AUDIO
VD
VCR_A_MUTE
P.CON+5V
SD_SYNC
V.REC_ST_H
CTL+
CTL-
GND
HOT
Y/C_AUDIO
P.CON+5V
VD
(SYSCON PCB)
Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM
TO FULL ERASE HEAD
FROM/TO HEAD AUDIO CONTROL
FROM/TO MICON
FROM/TO IN/OUT
FROM POWER
0.6
FROM/TO CHROMA/IF
VMA213
PCB800
NC
NC
0
0
0
0
NC
+
Vref
2.3V
SP,LP
EQ
AMP
ALC
ALC
A-VCC
1
2
3
A-GND
HA
PRE GND
R
P
P
R
P
P
H
L
H
L
REC:LP<EP
PB:EP
DET
PB,EE
PB,EE
VREF
REC
AMP
MUTE
AUTO
BIAS
LINE
AMP
REC
FM-EQ
FM
AGC
VHS
SOPB
P
R
PB
FM EQ
P
R
S-EQ
MAIN
DE-EM
LIM
DOUBBLE
FM
DEM
SUB
LPF
B
S
DET
EMPHA
FIL
MAIN 4.7K
Y-VCC
V.SYNC
SEP
SEP
6DB
QV/QH
AGC
TC2
BAL
TC1
REG
4V
1
2
3
VDD
4Fsc
CLOCK
PLL
TIMMING
OUT
DRIVER
AUTO-BIAS
CLAMP
CCD
VSS
OUT
IN
VCA
VCA
CLAMP
VCP
ALWAYS
5V
B
VX01
320FH
VCO
SLD
PHASE
EQ
fo-ADJ
PHASE
EQ
Q-ADJ
FM
AGC
FIL
Y-GND
R
P
FBC
1/2
VIDEO
AGC
Y/C
MIX
NC1
N.L.
DEEM
Y-LPF
CLAMP
DETAIL
ENH
NL
EMPHA
NL
EMPHA
FM
MOD
NORMAL
R-EQ
TEST
YNR/COMB
3.58M
BPF1
B.D
P
PB
AMP
CNC
BGA
BGA
BGA
R
P
AFTER
BEFORE
3.58M
BPF2
B-UP
AMP
Main
CONV
ACC
AMP
DET
ACC
C-LPF
4.21M
BPF
Sub
CONV
R
R
P
P
P
LPF
R
P
REC
AFC
PB
APC
REC
APC
P
R
R
P
R
P
C-VCC
SERAIL
DECODER
C-GND
C-ROT
RF-SW
IN
AUDIO
MUTE
HA SW
ENV
DET
ACC
DET
HA VCC
COMPOUT
KILL
DET
DET
CHROMA
GND
HA
R
R
P
P
R
PB-C
PB-C
R
R
P
P
VSS
SYNC
2.8
0
0.7
3
4
NC
5
SP_COM
SP-CH2 (L)
SP-CH1 (R)
AUDIO PB
AUDIO REC
CTL+
CTL-
AE HEAD(-)
AE HEAD(+)
NC
0.5
2.8
0
0
0
4.8
4.8
4.8
5.0
1.9
2.6
4.0
3.3
3.3
5.0
5.0
0
0.8
2.2
2.3
2.2
0
4.0
1.8
0.7
0
1.8
1.7
5.0
0.7
0.7
2.0
2.0
2.0
0
2.2
4.9
0
2.0
NC
2.3
2.2
2.2
2.3
2.2
2.2
2.5
2.3
2.2
2.3
2.4
5.0
1.0
1.0
1.7
1.4
0
0
1.5
0.1
2.2
0
1.7
0
3.0
2.8
3.1
3.1
2.6
2.0
4.0
2.3
2.3
1.6
2.9
3.6
0
4.9
2.8
NC
2.0
1.8
1.7
2.3
0
5.0
5.0
0
0
4.9
5.2
0
0
0.7
0.7
0
0
5.2
0
5.3
4.0
3.4
5.0
FE HEAD(GND)
FE HEAD(HOT)
5.2
NC
1
2
FROM/TO CYL