Panasonic NV-SJ30AM Service Manual page 61

8.3. LUMINANCE & CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRA
R :TO POWER SUPPLY/RF SECTION
S :TO SYSTEM CONTROL & SERVO SECTION
H
S FM MUTE H
S VIDEO OUT
S HEAD SW
R RFC AUDIO OUT
P4001
(TO FULL ERASE HEAD)
FULL ERASE IN
FULL ERASE OUT
G
S D.A.REC H
S CTL HEAD(+)
S CTL HEAD(-)
P4002
(TO A/C HEAD)
AUDIO ERASE IN
GND
A.HEAD(W)
F
A.HEAD(R)
CTL HEAD(-)
CTL HEAD(+)
R TUNER 5V
S FSC
R REG 12V
S REFRESH H
S BIAS L
S TRACKING ENV.
E
D
P5001
(TO CYLINDER UNIT)
10PIN:D/E
5PIN:A/B/D
EP R
EP COM
EP L
SP R
SP COM
SP L
GND
AUDIO HEAD L
AUDIO HEAD COM
AUDIO HEAD R
C
S PAL PB H
S PICTURE 2
S Y/C VIDEO OUT
S FM MUTE H
B
S S-VHS PB H
S PAL 9H H
S A.VR L
S NTSC L
S SP L
A
S PICTURE 1
R AV 12V
R VIDEO 5V
1
VIDEO MAIN SIGNAL PATH IN REC MODE
A1
A2
1
2
LB4005
1
0:A/B/D
2 VLP0147:C/E
3 B1
4
5
6
B2
1 B3
2 B4
3 B5
4 B6
5 B7
6 B8
7
(D/E)
8
9
10
(A/B/C)
R4011 10K
B9
B12
B13
C3054
2200P
R3008 1500
B14
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
2
QR4502
UN2115
QR4504
(BUFFER)
UN2215
(MUTE)
(A/D/E)
R4009 C4012
47K 6800P
B10
R4006
15K
B11
Q3001
2SD601A
(AMP)
12.3
QR4102
0
UN2213
(REF.
T4001
VLT0895
R4022 C4028
6800 470P
3
2
1
C4024
1500P
C4036
0.022
R4019
5.0
2200
(4.4)
R4020 C4027
3300 6V47
C4029
6800P
R3005
27K
R3004
18K
0 0
QR3003 QR3002
5.0 0
UN2213 UN2213
(PAL:ON) (SP L :ON)
3 4
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
R4007
39K
5.1
2.8
C3021
2.2 0.01
R3010
2200
12.4
QR4101
12.3
UN2111
(REF. L :ON)
0
H :ON)
4
0.4
(4.0)
R4021
0.4
3300 Q4004
(-0.4)
6 2SD602A
(OSC)
L4001
470u
C4026 C4025
16V220 0.022
0.4
(5.0)
Q4003
2SB710A
(BIAS L :ON)
5.1
R4018
10K
0
(4.9)
R3003
15K
L3001
390u
0
0
(4.9)
QR3001
0
UN2213 QR4002
(INV.) UN2111
(D.A.REC H :OFF)
B15
THE MEASUREMENT MODE OF THE DC VOLT
WITH PAL COLOUR SIGNAL.(SP MODE)
5
A3 A4 A
R4101
4.7
R4102 C4101
1K 0.01
12.3
R4103
2200
0
Q4101
0.4
2SD199600A
(5.0)
(REF.CONTROL)
-1.1
(4.8)
QR4103
5.1(0)
UN2111
QR4104
(D.A.REC:ON)
UN2213
5.1
(D.A.REC H :ON)
5.1
0
(12.9)
R4016
5.2 0.7
Q4001
4700
(-26.5) (-26.8)
2SD1149
(PB:ON)
0
R4017
(-18.0)
Q4002
2200
2SD601A
0.7
(PB:ON)
(-26.4)
6
32