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8.5.
LUMINANCE & CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRA
P :TO POWER TRANSFORMER SECTION
R :TO POWER SUPPLY/RF SECTION
S :TO SYSTEM CONTROL & SERVO SECTION
H
R
AV 12V
G
S
VIDEO OUT
R
RFC VIDEO OUT
S
IIC CLOCK
S
IIC DATA
S
HEAD SW
S
MESECAM
H
S
TRACKING ENV.
S
FM MUTE
H
F
R
RFC AUDIO OUT
R4652
3300
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)
VIDEO HEAD R
1
VIDEO HEAD COM
2
VIDEO HEAD L
3
4
C
B
S
BIAS
H
S
PAL 9H
H
S
D.A.REC
H
R
TUNER AUDIO
A
R
TUNER 5V
R
VIDEO 5V
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK
WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE.
1
VIDEO MAIN SIGNAL PATH IN REC MODE
L3304
68µ
C3049
C3050
0.1
16V47
2.4
R3023
Q3202
270
1.7
2SB709A
A8
A7
A5
A4
A3
A2
A1
R4651
0
R4081
12K
B1
B2
B3
B7
HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
2
3
JK3201
K2HA408B0069
(REAR JACK)
AUDIO
VIDEO
IN
IN
R3022
1
2
3
680
TL4505
(AMP)
C3051
6V470
LB4079
0:A/B/E
VLP0147:
C/D
R4073
0:A/B/E
470:C/D
C4075
470P
T4081
EQQ7QF024Q
C4082
470P
3
4
2
C4081
0.022
1
6
C4084
1800P
5.3
C4086
R4086
6V47
2200
5.3
Q4084
(4.4)
2SB710A
(ERASE HEAD
R4087
DRIVE)
2200
0.3
5.3
(4.9)
(0)
L4081
0
QR4082
470µ
(4.8)
UN2213
(BIAS
H
:ON)
C4066
2200P
0
QR4061
0
UN2211
(PAL 9H
H
:ON)
5.0
R4084
0
0.7
QR4081
1K
(4.8)
(-24.5)
UN2111
(D.A.REC
:OFF)
H
5.3
(0)
R4085
0.7
1K
(-24.0)
4
VIDEO MAIN SIGNAL PATH IN
AUDIO
OUT
4
5
6
7
TL3003
TL
R3039
75
C4079
470P
LB
0:
VL
(C/D)
C/
R3212
R4
47
75
0.3
(4.6)
R4082
0.3
3300
Q4081
(-0.8)
2SD60
(OSC)
R4088
0
C4085
0.022
C4083
6V220
0
Q4082
2SD1149
(PB:ON)
0
(-15.9)
Q4083
2SD601A
(PB:ON)
NOT
5
38
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