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8.5.
LUMINANCE & CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRA
R :TO POWER SUPPLY/RF SECTION
S
:TO SYSTEM CONTROL & SERVO SECTION
A
:TO Hi-Fi AUDIO SECTION
H
I
:TO INPUT/OUTPUT SECTION
D :TO DECODER SECTION
G
S
MUTE
H
S
MESECAM DET
H
S
TRACKING ENV.
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
LP/EP COM
2
LP/EP L
3
SP R
4
SP COM
5
SP L
6
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)
A
AUDIO IN (N)
A
AUDIO OUT (N)
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
VIDEO MAIN SIGNAL PATH IN REC MODE
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
AUDIO MAIN SIGNAL PATH IN REC MODE
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
A3
A2
A1
R4014
16K
R4020
4700
B1
B2
B3
B4
B5
B6
R4001
3300
C4001
6V100
C3071
0.1
B7
B8
B9
2
3
T4001
EQQ7QF024P
C4020
220P
3
4
2
C4021
0.022
1
6
C4022
1500P
C4025
5.3
C4026
R4019
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)
C4003
R4003
4700P
22K
0
R4002
QR4001
100K
0
UN2211
(PAL EP
H
:ON)
5.0
R4015
0
0.7
QR4002
4700
(4.8)
(-24.5)
UN2111
(D.A.REC
H
:OFF)
5.3
(0)
R4016
0.7
2200
(-24.0)
THE MEASUREMENT MODE OF THE
WITH PAL COLOUR SIGNAL.(SP MO
4
50
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