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
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
X4001
3.579545MHz
L4007
100uH
L4011
22uH
L4012
68uH
C4017
1
50V
KA
C4058
22
6.3V
KA
C4010
47
6.3V
KA
C4004
47
6.3V
KA
C4011
1
50V
KA
C4016
4.7
25V
KA
C4034
1
50V
KA
C4043
1
50V
KA
C4001
47
6.3V
KA
C4024
4.7
25V
KA
C4077
0.1
B
C4009 0.1
F
C4074
470P
CH
C4015
0.022
100V
TF
C4052
0.01
B
C4044
0.1
F
C4038
0.1
F
C4049
180P
CH
C4047
22P CH
C4006
0.015
B
C4002
0.01 B
C4048
0.01
B
C4050
220P
CH
C4055
0.1
F
C4025
0.0015
B
C4005
0.01
B
C4003
0.1
F
C4018
0.0027
B
C4020
0.01
B
C4027
0.0015
B
C4053 0.01 B
C4078
0.1
B
C4079
0.1
B
C4073
47P CH
C4080
0.1
B
C4072
0.1
B
C4041
390P
CH
C4083
33P
CH
C4066
1F
C4065
1F
C4084
6P
CH
C4032
0.022
B
C4054
0.047
B
C4082
0.047 B
C4075
330P B
C4051
0.01 B
C4046
0.01 B
C4028
0.22
B
C4029
0.056
B
C4036
0.022
B
C4076
0.1
B
R4057
2.2K
R4045
680K
R4009
2.7K
R4020
10K
R4011
22K
R4002
10K
R4003
10K
R4013
10K
R4008
12K
R4015
2.2
1
/4W
R4067
47K
R4060
220K
R4062
220K
R4026
33K
R4050
680K
R4068
47K
R4019
4.7K
R4010
3.3K
R4027
120
R4001 820
R4048
4.7K
R4049
1K
R4047
10K
R4023
6.8K
R4025
330K
R4022
6.8K
R4032
27K
R4034
820
R4063
3.3M
R4065
2.2K
R4036
47K
R4051
27K
R4056
1M
R4031
27K
R4055 8.2K
R4078 100
R4033
1K
R4061
680
R4064
680K
R4029
2.2M
R4024 10K
R4028
6.8K
R4044
8.2K
R4052
33 1/4W
R4039
33K
R4014
1.8K
R4046
680
R4070
10M 1/4W
R4053
6.8K
R4012
22K
R4072
22K
R4007
680
R4006
33
1/4W
R4016
100
C4062
1
50V
KA
C4060
4.7
50V
KA
C4057
47
16V
KA
C4035
100
6.3V
KA
C4059
4.7
25V
KA
C4061
1
50V
KA
C4007
1
50V
KA
C4030
10
16V
KA
C4022
10
16V
KA
C4070
47
6.3V
KA
C4026
100
6.3V
KA
C4008
100
6.3V
KA
C4021
33
6.3V
KA
C4023
22
6.3V
KA
C4031
2.2
50V
KA
C4033
2.2
50V
KA
C4039
1
50V
KA
C4037
1
50V
KA
C4045
47
6.3V
KA
C4071
1
50V
KA
Q4006
2SD734
BIAS OSC
Q4001
2SC3331
AUDIO
PB SW
Q4002
2SC3331
AUDIO
PB SW
Q4008
2SC2412K
EP SW.
W821
W836
W864
W849
W815
W826
W896
Q4005
2SA1318
BIAS CTL
Q4009
2SA1037K
BUFFER
Q4007
2SA1037AK
BUFFER
L4002
100uH 0305
L4003
100uH
L4001
100uH 0305
L4005
47uH
0305
L4010
100uH
0305
L4008
100uH 0305
L4009
100uH
0305
Q4011
DTC144EKA
TRICK PB SWITCH
CAUTION: DIGITAL TRANSISTOR
S103Y
S103X
S008
S008_1
TUNER VIDEO SIGNAL
D4005
MTZJ6.8B
D4006
MTZJ6.8B
T4001
1626007
COIL,BIAS OSC
1
2
3
4
5
6
CP4003
TMC-T02X-E1
1
2
Q4003
DTA124ES
SW
CP4002
IMSA-9604S-06Z14
1
2
3
4
5
6
IC4001
LA71067M-MPB
Y/C/AUDIO/CCD/HEAD AMP IC
1
10
100
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
81
82
83
84
85
86
87
88
89
9
90
91
92
93
94
95
96
97
98
99
L4004
2623003
15.6KHZ TRAP
1
2
3
4
6
TP4001
JWF-50K-1
ENV
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
PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
TU_AUDIO
P.CON+5V
FRONT_AUDIO
SP/LP/EP-H
INPUT_SEL
TRICK_PB-H/EE-H
GND
P.CON+5V
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
SP/LP/EP-H
TRICK_PB-H/EE-H
P.CON+5V
V.REC_ST_H
C_ROTARY
VCR_A_MUTE
TU_VIDEO
REC/EE/PB
DUMMY_V.SYNC
CTL-
CTL+
DOC_XO_CTL
ENV_DET
FRONT_VIDEO
INPUT_SEL
COMP
ENV_DET
COMP
CHROMA_VIDEO
H.SW
Y/C_AUDIO
H.SYNC
SD_VIDEO
DUMMY_V.SYNC
P.CON+5V
P.CON+5V
Y/C_VIDEO
SD_VIDEO
TU_VIDEO
CTL+
TU_AUDIO
V.REC_ST_H
CTL-
CHROMA_VIDEO
Y/C_AUDIO
H.SYNC
TRICK_PB-H/EE-H
V.REC_ST_H
VCR_A_MUTE
DOC_XO_CTL
SP/LP/EP-H
REC/EE/PB
C_ROTARY
P.CON+5V
H.SW
Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM
(SYSCON PCB)
G-2
G-1
3
FROM/TO CHROMA/IF
FROM/TO IN/OUT
FROM/TO MICON
TO FULL ERASE HEAD
FROM/TO HEAD AUDIO CONTROL
FROM/TO CYL
SP_COM
TO SHIELD COVER HEAD AMP
FROM POWER
PCB010
VMX180
NC
NC
NC
NC
AUDIO PB
AE HEAD(+)
CTL-
CTL+
AUDIO REC
AE HEAD(-)
0
0
0.7
0.7
0
0
0
5.2
5.2
0
2.5
2.4
5.1
0
0.3
2.8
4.6
0
1.0
0
1.8
1.8
1.8
1.8
5.1
0
1.8
1.8
1.8
1.8
0
2.4 2.4 2.4
0 2.4 5.0 2.3 2.3 2.8 2.3 1.5 2.0
0
0 1.4 4.0 2.3 2.2 3.0 4.1 3.4 4.9 3.4 5.0 5.0
5.0 4.2 2.3 0.1
0
2.2
0
2.7
2.5
3.0
3.2
2.8
2.8
4.9
2.8
3.5
2.5
1.5
1.0
3.0
4.4
0
4.6
4.8
1.0
2.1
0
2.8
3.4
2.0
0.2
1.0
5.0
1.6
0
4.9
0
0
0.8
0.8
0.8
0
0
5.0
NC
5.0
1.5
2.4
2.4
0
2.4
2.4
2.4
2.4
VIDEO OUT
AFC
DET
SYNC
AUTO-BIAS
VSS
VSS
R
P
TIMMING
ACC
AMP
PB
H.A
CH3
OUT
REC SP
OUT
REC EP
ALC-LEVEL
PB-Y
R
P
NC1
DEEN
N.L.
MIX
Y/C
PB-C
1
3
2
R
P
P
R
AFTER
BEFORE
R
P
R
P
KIL
R
P
NOMAL
HA TEST
P
R
R
P
R
P
TEST
R
P
R
NOMAL
VHS
SQPB
SW
SW
H.AMP
H.AMP
L
H
CH1
CH2
CH4
L
H
L
H
H.A GND
Y-Vcc
Y-GND
4Fsc
IN
OUT
C.SYNC
BGA
BGA
TEST
R-EQ
PHASE-EQ
PB
CLOCK
PULL
OUT
CCD
DRIVER
FM-EQ
S-EQ
AFC
REC
APC
PB
APC
REC
BPF1
3.58M
BPF2
3.58M
CONV
V/I
DEM
FM
SUB
LPF
ENH
DETAIL
EMPHA
NL
LIM
DOUBLE
Y-LPF
YNR/COMB
INS.
Chara
6DB
SEP
SYNC
1/2
FBC
TC2
AGC
V-AGC
CLAMP
VCP
CLAMP
VCA
CLAMP
VDD
C-VCC
5V
ALWAYS
SLD
VCO
320FH
VX01
C-LPF
BGA DET
ACC
AMP
B-UP
C-GND
REG
DET
KIL
KIL
KIL
B.D.
GCA
AMP
CONV
Main
BPF
4.21M
BALANCER
CONV
Sub
MOD
FM
REC
FM-EQ
DC
WC
FM
AGC
DELAY
FM-EQ
PB
+
AMP
AGC
IN
IN
AMP
CTL
R
HA SW
C ROT
RF SW
MUTE
AUDIO
R/P
R/P
AUDIO
R/P
Y/C
FILT
REC AGC
COMP OUT
ENV DET
H.A VCC
H.A GND
AMP
LINE
BIAS
AUTO
MUTE
A.GND
P
A-Vcc
2.3V
Vref
ALC
/EE
PB
Vref
AMP
REC:
EP/LP
PB:EP
REC
PB/EE
AMP
EQ
0
SP-CH1 (R)
SP-CH2 (L)
5.3
5.2
0
NC
4.3
NC
NC
NC
NC
2.6
2.2
0.4
3.4
4.2
5.0
4.8
2.6
2.0
0
FE HEAD(GND)
FE HEAD(HOT)
1
1.1
0
0
2
4
