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VIDEO MAIN SIGNAL PATH IN REC MODE
P
:TO POWER TRANSFORMER SECTION
R
:TO POWER SUPPLY/RF SECTION
S
:TO SYSTEM CONTROL & SERVO SECTION
H
L3304
68u
R
AV 12V
C3048
0.1
G
S
VIDEO OUT
R
RFC VIDEO OUT
S
IIC CLOCK
A8
S
IIC DATA
A7
S
HEAD SW
A5
S
MESECAM
H
A4
S
TRACKING ENV.
A3
S
FM MUTE
H
A2
F
R
RFC AUDIO OUT
A1
P4002
(TO A/C HEAD)
AUDIO ERASE IN
1
GND
2
AUDIO HEAD (R)
3
AUDIO HEAD (W)
4
CTL HEAD (-)
5
E
CTL HEAD (+)
6
S
CTL HEAD (+)
S
CTL HEAD (-)
P4001
(TO FULL ERASE HEAD)
FULL ERASE IN
1
FULL ERASE OUT
2
D
P
UNREG 6V
R
GND
P5001
(TO CYLINDER UNIT)
SP R
1
B1
SP COM
2
B2
SP L
3
B3
GND
4
C
5
B5
B
S
SP
L
S
BIAS
H
S
PAL 9H
H
S
D.A.REC
H
R
TUNER AUDIO
B7
A
R
TUNER 5V
R
VIDEO 5V
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR.(SP MODE)
1
2
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
JK3201
K2HA408B0053
(REAR JACK)
AUDIO
VIDEO
IN
IN
C3049
C3050
R3022
1
2
3
4
5
0.1
16V47
680
TL4505
TL3003
2.4
R3023
470
Q3202
1.7
2SB709A
(AMP)
C3051
R3039
6V470
68
LB4079
0:A/B/E
VLP0147:
C4079
C/D
470P
(C/D)
R4073
0:A/B/E
470:C/D
C4075
R3212
470P
75
T4081
EQQ7QF024Q
R4081
C4082
12K
470P
3
4
2
C4081
R4082
0.022
0.3
3300
(-0.8)
1
6
C4084
1800P
C4086
R4086
5.3
6V47
2200
5.3
Q4084
(4.4)
2SB710A
(ERASE HEAD
R4087
DRIVE)
2200
0.3
5.3
(4.9)
(0)
L4081
0
QR4082
470u
(4.8)
UN2213
(BIAS
H
:ON)
C4083
6V220
C4066
2200P
0
0
QR3004
0
QR4061
UN2213
0
UN2211
(LP/EP:ON)
(PAL 9H
H
:ON)
5.0
0
R4084
0
0.7
QR4081
1K
Q4082
(4.8)
(-24.5)
UN2111
2SD1149
(D.A.REC
H
:OFF)
(PB:ON)
R4039
5.3
10K
0
(0)
(-15.9)
R4085
0.7
1K
Q4083
(-24.0)
2SD601A
(PB:ON)
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
3
4
5
AUDIO MAIN SIGNAL PATH IN REC MODE
A1
A2
QR4504
AUDIO
VIDEO
UN2115
0
OUT
OUT
(BUFFER)
QR4506
UN2215
-0.4
0
(MUTE)
6
7
8
(B)
TL4503
TL3002
R3038
2200
C3047
0.1
LB4073
0:A/B/E
VLP0147:
C/D
C4603
6800P
R4075
470
R4602
47K
L5001
56u
C5006
C5005
0.1
6V100
0.3
(4.6)
Q4081
2SD602A
(OSC)
R4088
0
C4085
C4052
C4051
R4061
0.022
0.1
6V220
330K
(C/D)
C4061
0.01
R4062
R4063
C4062
10K
180
6V33
C4016
15P
C4063
50V3.3
R4071
C4065
15K
1800P
R4015
C4042
20K
25V4.7
C3066
0.1
B8
B9
B10
B11
6
7
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
A3
A4
A5
(A/C/D/E)
R3018
R4018
15K
10K
(A/C/D/E)
2.5
0
0
80
79
78
C3046
50V1
B-Y
INVERT
4.9
81
TANK
COME
0
82
COLOR
1.3
R
DET
DET
LEVEL
(3.3)
DETECTOR
83
P
5.2
84
ENVDET
HPF
0
85
2.4
B5
86
0
87
88
C5003
0.01
2.4
B3
89
2.4
SP2
B2
90
SP2
C5004
0.01
2.4
B1
91
SP1
5.2
92
SP1
C4041
C4053
0.5
93
25V4.7
1000P
(C/D)
2.5
FH
94
TRAP
SP ON
LB4077
0:A/B/E
J0JBC0000070:C/D
PREAMP
2.5
95
(C/D)
LB4078
0:A/B/E
REC ON
J0JBC0000070:C/D
2.5
96
C4064
1800P
EP ON
0
97
2.6
REC
98
EQ
99
C4018
6V22
2.6
100
IC3001
1
2
3
HA118425F
0
0
0
C4011
R4016
0
15K
R4017
R4013
10K
47K
B7
B10
NV-MV20GC/GCS/GM/GL/EE/GCU/GCF/GH
LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM
8
9
A7
TW3001
C3042
25V4.7
2.8
2.3
2.7
2.8
77
76
75
74
CR DET
MESECAM
DET
CH2
REC
CH1
MUTE
VCA
EXT
INT
CH2
CH1
EXT
INT
R
P
VCA
DET
BAND
GAP
4
5
6
7
0
2.1
2.6
2.8
C4010
C3062
16V10
16V10
C4601
16V10
R4014
4700
R4601
470
B11
10
11
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