Panasonic NV-SV120EG Service Manual page 136

R :TO POWER SUPPLY/RF SECTION
S :TO SYSTEM CONTROL & SERVO SECTION
V :TO LUMINANCE & CHROMINANCE/AUDIO SECTION
I :TO INPUT/OUTPUT SECTION
D :TO DECODER SECTION
G
S MUTE H
S SYS IIC CLOCK A3
S SYS IIC DATA A2
V FSC A1
F
I AV2 A OUT (R)
I AV2 A OUT (L)
I AV1 A OUT (R)
E
I AV1 A OUT (L)
R PS 5V
R PS 12V
R GND
D
V AUDIO IN (N)
V AUDIO OUT (N)
C
R RFC AUDIO OUT
S RFC MUTE H
B
I AV3 A IN (R) B1
I AV3 A IN (L) B2
D TUNER AUDIO (R) B3
I AV1 A IN (R) B4
I AV2 A IN (R) B5
D TUNER AUDIO (L) B6
I AV1 A IN (L) B7
I AV2 A IN (L) B8
V AUDIO HEAD COM B9
V AUDIO HEAD R B10
V AUDIO HEAD L B11
S A.HEAD SW B12
S ABS NORMAL L B13
S D.FM REC H B14
A
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
1 2
AUDIO MAIN SIGNAL PATH IN REC MODE
A4
L4502
1.2u
C4525 C6526
6V100 0.1
QR4501
UN2113
(BUFFER)
0 -0.3
2.5
QR4503
48
XN0121600L
(MUTE)
0
2
-0.3
3
0.2
49
4
5
0.5
-0.3
50
1
0
R4533 C4530
220 16V10
6.0
51
R4531 C4531
220 16V10 6.0
52
R4535 C4532
220 16V10
6.0
53
QR4504
XN0121600L
0
(MUTE) C4544
54
100P
0
2
-0.3
3
55 GND
4
5
0
-0.3 C4545
56
100P
1
0
R4538 C4533
220 16V10 6.0
57
L4503
10u
12.3
58 VCC2
C4539 C4534
R4543 C4535
0.1 16V47
220 16V10
6.0
59
R4537
DET
C4536
10K
16V22
0.7
60
2.4
61
R4540 C4538
22K 0.1 2.4
62
R4539
3600
0
63
0
QR4502 64
0
UN2113
QR4507
(BUFFER)
0 -0.4
UN2216
(MUTE)
IC4501
1
AN3656NFBPBV 2.3
C4540
0.1
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
3 4 5
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
A1 A2 A3
C4529 R4526 R4525
16V10 1K 1K
2.5 4.7 1.5 3.2 2.8 2.9 4.9 0
47 46 45 44 43 42 41 40 39
IIC BUS
INTERFACE
SWITCH
RCH
SWITCH
LCH
OUTPUT
SELECT
SWITCH
RCH
+
OUTPUT
SELECT
SWITCH
LCH
NORMAL
OUTPUT
SWITCH
INPUT SWITCH RCH
2 3 4 5 6 7 8 9 10
0 2.3 0 0 2.4 2.0 0 0 0
C4541 C4501 C4502
0.1 16V10 16V10
B1 B2 B3 B4 B5
6 7
A4
R4521
4700
R4522 C4524
510 0.047
R4524 R4523 C4522 C4521
30K 1K 16V10 6V22
1.7 0 2.4 0.6 2.5
38 37 36 35 34 33
R4520
120K
C4520
0.015
2.5
PNR RCH 32
C4519
1.7
0.22
(1.0)
AGC & REC AGC
31
SWITCH DET
R4519
1.7
820
(4.1)
30
1.8
FM
(4.3)
MODULATOR/ 29
DEMODULATOR
4.2
ENV.DET
28
OUT
LPF
2.4
(0)
27
BPF
C4517
0
0.1
(2.0)
REC
26
DC2
BPF + AGC
4.9
VCC 25
0.7
LPF
PREAMP
(2.0)
& 24
SWITCH
FM
MODULATOR/ GND 23
DEMODULATOR
0.7
(2.0)
22
TW4501
0
(1.8)
21
C4509
0
0.033
(1.9)
20
C4508
0.015
2.5
AGC &
19
SWITCH
C4507
16V22
2.5
PNR
18
LCH
INPUT SWITCH LCH
C4506
0.5 16V10
17
11 12 13 14 15 16
2.0 0 0 0 2.4
C4503
16V10
C4504
0.047
R4518
4700
R4517
510
C4505
10V33
B6 B7 B8
NV-SV120EB/EC/EP
NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS
SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU
Hi-Fi AUDIO SECTION SCHEMATIC DIAGRAM
ORDER A PART,PLEASE REFER TO PARTS LIST.
8 9
C4523
10V33
R4527
22K
TW4502
D4502
MA165
B14
TL4503
B13
TW4511
B12
C4514
0.01
B11
C4511
0.01
B10
B9
C4515
6V100
C4516
0.1
L4501
1.2u
10