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R :TO POWER SUPPLY/RF SECTION
VIDEO MAIN SIGNAL PATH IN REC MODE
S
:TO SYSTEM CONTROL & SERVO SECTION
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
A
:TO Hi-Fi AUDIO SECTION
H
AUDIO MAIN SIGNAL PATH IN REC MODE
I
:TO INPUT/OUTPUT SECTION
D :TO DECODER SECTION
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
G
S
MUTE
H
A3
S
MESECAM DET
H
A2
S
TRACKING ENV.
A1
P4002
(TO A/C HEAD)
AUDIO ERASE IN
1
GND
2
AUDIO HEAD (R)
3
AUDIO HEAD (W)
4
CTL HEAD (-)
5
F
CTL HEAD (+)
6
S
CTL HEAD (+)
S
CTL HEAD (-)
P4001
(TO FULL ERASE HEAD)
FULL ERASE OUT
1
FULL ERASE IN
2
E
R
BIAS 5V
R
GND
LB4004
R
GND (SYS)
0
R
GND (A)
R
GND (HA)
R
GND (V)
R
GND (NA)
S
BIAS
H
D
P5001
(TO CYLINDER UNIT)
LP/EP R
1
B1
LP/EP COM
2
B2
LP/EP L
3
B3
SP R
4
B4
SP COM
5
B5
SP L
6
B6
GND(HA)
7
AUDIO HEAD L
8
C
AUDIO HEAD COM
9
AUDIO HEAD R
10
A
AUDIO HEAD R
A
AUDIO HEAD COM
A
AUDIO HEAD L
B
S
PAL EP
H
S
D.A.REC
H
D
TUNER AUDIO (N)
B7
A
AUDIO IN (N)
B8
A
AUDIO OUT (N)
B9
A
R
PS 5V
R
VIDEO 5V
NOTE:THE MEASUREMENT MODE OF THE DC VLOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
1
2
T4001
EQQ7QF024P
R4014
C4020
16K
220P
3
4
2
C4021
R4017
0.022
0.3
3300
(-0.8)
1
6
C4022
1500P
C4024
0.022
R4020
C4026
R4019
C4025
5.3
4700
16V10
6800
10V22
5.3
Q4006
(4.4)
2SB710A
(ERASE HEAD
R4018
DRIVE)
4700
0.3
5.3
(4.9)
(0)
L4002
0
QR4005
68u
(4.8)
UN2212
(BIAS
H
:ON)
C4023
10V47
C4008
25V3.3
C4004
C4003
R4003
1200P
4700P
22K
0
R4001
R4002
QR4001
3300
100K
0
UN2211
(PAL EP
H
:ON)
C4001
6V100
R4006
22K
C3071
0.1
5.0
0
R4015
0
0.7
QR4002
Q4003
4700
(4.8)
(-24.5)
UN2111
2SD1149
(D.A.REC
H
:OFF)
(PB:ON)
5.3
0
(0)
(-15.9)
R4016
0.7
Q4004
2200
(-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
A5
A6
A1
A2
C3042
5.0
1
Q3001
2.2
2SD601A
(AMP)
R3015
3300
1.5
R3017
1K
C3027
50V1
4.9
C5007
1.3
0.1
(3.3)
L5001
68u
5.2
C5005
C5006
0.1
6V47
C5004
LB5004
0.01
0
2.4
B6
0.3
(4.6)
Q4005
2.4
2SD602A
B5
(OSC)
C5003
LB5003
0.01
0
2.4
B4
C5002
2.3
0.01
(0)
B3
2.3
(0)
B2
C5001
2.3
0.01
(0)
B1
5.2
R4008
C4012
330K
50V4.7
0.5
C4011
8200P
2.5
R4007
10K
LB4003
J0JBC0000070
2.5
C4009
LB4001
6V22
J0JBC0000070
2.5
LB4002
0
R4004
220
2.6
C4006
25V4.7
C4005
6V22
2.6
IC3001
HA118425SF
L4001
0
C4013
C4014
0.01
6V47
NV-SV120EB/EC/EP
LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM
6
7
A7
A3
A10
R3009
R3010
C3028
R3011
TW3001
15K
10K
50V4.7
100
2.5
0
0
2.8
2.3
2.7
2.8
80
79
78
77
76
75
74
B-Y
INVERT
CR DET
81
TANK
COME
MESECAM
0
82
DET
COLOR
R
DET
DET
LEVEL
DETECTOR
83
P
84
ENVDET
HPF
85
SP2
86
CH2
SP2
REC
CH1
MUTE
87
SP1
88
SP1
VCA
EXT
89
INT
SP2
90
SP
SP2
CH2
91
SP
CH1
SP1
EXT
INT
92
SP1
93
FH
94
TRAP
SP ON
PREAMP
95
R
P
REC ON
96
EP ON
0
97
VCA
DET
REC
98
EQ
99
100
BAND
GAP
1
2
3
4
5
6
7
0
0
0
5.2
2.1
2.6
2.8
C4016
C4017
C4018
C4019
0.1
16V10
50V1
16V10
R4013
100
R4009
R4011
R4012
R4010
33K
24K
820
10K
B7
B8
B9
8
9
10
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