Panasonic NV-SV120EF, Service Manual

Page: 117 / 135

:TO LUMINANCE & CHROMINANCE/AUDIO SECTION
:TO SYSTEM CONTROL & SERVO SECTION
1 2 3 4 5 6 7
A
B
C
D
E
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH SECAM COLOUR SIGNAL.(SP MODE)
:TO POWER SUPPLY/RF SECTION
8 9
S
V
R
:TO INPUT/OUTPUT SECTION I
F
G
ABS NORMAL S
10
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE
WITH SECAM COLOUR SIGNAL.(SP MODE)
A.HEAD SW S
AUDIO HEAD L V
AUDIO HEAD R V
AUDIO HEAD COM V
AV2 A IN (L) I
AV1 A IN (L) I
TUNER AUDIO (L) D
AV2 A IN (R) I
AV1 A IN (R) I
TUNER AUDIO (R) D
AV3 A IN (L) I
AV3 A IN (R) I
AUDIO OUT (N) V
AUDIO IN (N) V
PS 12V R
GND R
C4539
0.1 C4534
16V47
FSC V
SYS IIC DATA S
SYS IIC CLOCK S
MUTE S
A3
A2
A1
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
R4539
3600
C4538
0.1
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
IC4501
AN3656NFBPBV
L4503
10u
VCC2
C4533
16V10
C4532
16V10
C4531
16V10
C4530
16V10
GND
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
A1 A2 A3 A4
C4529
16V10 R4526
1K R4525
1K R4524
30K R4523
1K C4522
16V10 C4521
6V22
SWITCH
RCH
SWITCH
LCH
OUTPUT
SELECT
SWITCH
RCH
+
DET
NORMAL
OUTPUT
SWITCH
OUTPUT
SELECT
SWITCH
LCH
VREF
INPUT SWITCH RCH INPUT SWITCH LCH
GND (L)
AGC &
SWITCH
FM
MODULATOR/
DEMODULATOR
LPF
PNR
LCH
AGC +
GND
PREAMP
&
SWITCH
VCC
REC
DC2
ENV.DET
OUT
REC AGC
DET
PNR RCH
BPF
BPF
LPF
FM
MODULATOR/
DEMODULATOR
AGC &
SWITCH
MUTE CONTROL REC AGC ADJ.
GND(R)
VCC
VCO- FO
IIC BUS
INTERFACE
C4540
0.1 C4541
0.1
B1
R4502 56K R4505 4700 R4506 4700 R4501 56K
B2
C4501
16V10 C4502
16V10 C4503
16V10
R4507 15K R4504 30K
B3
R4508 4700 R4514 56K
B4
R1509 4700 R1516 56K
B5
R4510 15K R4503 30K
B6
R4511 4700 R4513 56K
B7
R4512 4700 R4515 56K
B8
R4518
4700
R4517
510
C4504
0.047
C4505
10V33
C4506
16V10
C4507
16V22
C4508
0.015
C4509
0.033
C4516
0.1
C4515
6V100
B9
B10
C4511
0.01
B11
C4514
0.01
C4517
0.1
B12
B13
C4519
0.22
C4520
0.015
R4520
120K
D4502
MA165
R4522
510
R4521
4700
C4524
0.047 C4523
10V33
AUDIO MAIN SIGNAL PATH IN REC MODE AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS
SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU
ORDER A PART,PLEASE REFER TO PARTS LIST.
:TO DECODER SECTION D
TW4501
TW4502
2.5
1.7
(1.0)
1.7
(4.1)
1.8
(4.3)
4.2
2.4
(0)
0
(2.0)
4.9
0.7
(2.0)
1.5
0.7
(2.0)
0
(1.8)
0
(1.9)
2.5
2.5
0.5
3.2 2.8 2.9
6.0
4.9 0
6.0
1.7 0 2.4 0.6 2.5 4.7 2.5 2.5
6.0
0
0.5
0
6.0
12.3
6.0
0.7
2.4
2.4
0.2
2.3 0 2.3 0 0 2.4 2.0 0 0 0 2.0 0 0 0 2.4
B14
TL4503
D.FM REC S B14
PS 5V R
A4
QR4501
UN2113
(BUFFER)
QR4503
XN0121600L
(MUTE)
3
4
5
1
2
QR4504
XN0121600L
(MUTE)
3
4
5
1
2
AV2 A OUT (R) I
AV2 A OUT (L) I
AV1 A OUT (R) I
R4533
220
R4531
220
R4535
220
C4544
100P
C4545
100P
R4538
220
AV1 A OUT (L) I
L4502
1.2u
C4525
6V100 C6526
0.1
R4540
22K
R4519
820 R4527
22K
TW4511
L4501
1.2u
-0.3 0
0
0
-0.3
-0.3
0
0
-0.3
0
0
-0.3
L
H
H
NV-SV120EF
Hi-Fi AUDIO SECTION SCHEMATIC DIAGRAM