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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
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
SP COM
2
SP L
3
GND
4
C
5
B
S
SP
L
S
BIAS
H
S
PAL 9H
H
S
D.A.REC
H
R
TUNER AUDIO
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
VIDEO MAIN SIGNAL PATH IN REC MODE
L3304
68u
C3048
C3049
C3050
0.1
0.1
16V47
R3023
470
1.7
A8
A7
A5
A4
A3
A2
A1
B1
B2
B3
B5
B7
2
3
JK3201
K2HA408B0053
(REAR JACK)
AUDIO
IN
R3022
1
2
3
680
2.4
Q3202
2SB709A
(AMP)
C3051
6V470
LB4079
0:A/B/E
VLP0147:
C/D
R4073
0:A/B/E
470:C/D
C4075
470P
T4081
EQQ7QF024Q
R4081
C4082
12K
470P
3
2
C4081
0.022
1
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)
0
QR4082
(4.8)
UN2213
(BIAS
H
:ON)
C4066
2200P
0
QR4061
0
UN2211
(PAL 9H
H
:ON)
5.0
R4084
0
QR4081
1K
(4.8)
UN2111
(D.A.REC
H
:OFF)
R4039
5.3
10K
(0)
R4085
1K
THE MEASUREMENT MODE OF THE DC VOLTAGE O
WITH PAL COLOUR SIGNAL.(SP MODE)
4
VIDEO MAIN SIGNAL PATH
VIDEO
AUDIO
VI
IN
OUT
OU
4
5
6
7
TL4505
TL3003
TL4
R3039
68
C4079
470P
LB4
0:A/
VLP
(C/D)
C/D
R3212
R40
75
470
4
0.3
(4.6)
R4082
0.3
Q4081
3300
(-0.8)
6
2SD602
(OSC)
R4088
0
C4085
0.022
L4081
470u
C4083
6V220
0
QR3004
0
UN2213
(LP/EP:ON)
0
0.7
Q4082
(-24.5)
2SD1149
(PB:ON)
0
(-15.9)
0.7
Q4083
(-24.0)
2SD601A
(PB:ON)
5
36
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