Panasonic SC-HC20GA, Service Manual

Page: 85 / 115

85
17 Schematic Diagram
17.1. CD SERVO CIRCUIT
A
B
C
D
E
F
G
H
1 2 3 4 5 6 7 8 9 10 11 1 2 13 14
1 2 3 4 5 6 7 8 9 10 11 1 2 13 14
A
B
D
E
F
H
G
C
S C-HC 2 0G A /GN CD S ER V O CIRCUIT
S CHEM A TIC DI A GR A M-1
: + B S IGN A L LINE
CD S ER V O CIRCUIT
: CD A UDIO INPUT S IGN A L LINE
TO
M
A IN
(CN80 7 ) IN
CIRCUIT
S CHEM A TIC
DI A GR A M- 2
TP 39
TP 38
TP 3 7
TP 3 6
TP 90
TP 2 8
TP 51
TP 50
TP 88
TP 89
TP
8
7
TP
8
6
TP 2 4
TP 13
TP 1 2
TP 7
TP 8
TP 9
TP 31
TP 4
TP 3
TP 2
TP 1
TP 11
TP 10
TP 1 6
TP 14
TP 19
TP 18
TP 1 7
C 722 3
50 V 4. 7
D 76 50
M A Z805 6 GML
C 722 5
1000P
50 V 1
C 7227
1 k
R 72 1 7
LB
7262
0.1
C 726 3
R 72 18 1 k
LB
726
4
LB
726
3
LB 7262 -LB 726 4
D0GBR00 JA 008
50 V 1
C 722 8
C 7226
1000P
C 72 1 7
0.1
C 72 44
0.015
8 2k
R 72 11
100
R 722 1
C 72 31
6 .3 V22 0
C 72 30
0.1
8 2 0
R 72 1 2
C 72 41
1000P
C 72 18
0.08 2
C 72 1 6
6 80P
0.4 7
C 7 10 2
0.1
C 72 04
1 6V 10
C 72 35
C 72 34
0.1
C 7 1 6 1
0.1
C 72 03
6 .3 V22 0
C 7 315
0.4 7
C
7
339
8
2
00P
3.3 k
R 7 315
18K R 7 3 2 8
R 7 330
5. 6 K
10 k
R 7 111
C 7 14 2
3300P
10
R 72 53
C 7 1 66
0.01
S72 01
RE S T S W
1M
R 722 0
R
72
14
4
7
0
3 1
2
X72 01
H 2 B1 6 9500005
1K
R 72 54
C 7 155 0.1
0.1 C 7 154
10
C
7
1
6
4
10
C
7
1
6
5
4 7 0P
C 72 53
0.1
C 72 33 C 72 3 2
6 .3 V22 0
0.1
C 72 43
6
5
8
9
11
1 2
10
18
15
1 7
1 6
2 0
19
13
14
7
2
1
4
3
22
1
22
2 1
CN 7 00 2
0.0 22
C 7 10 7
7 9
77
76
7 8
49
4 7
48
50
7 4 7 1 72 67 6 8 5 6 55 58 5 7 5 2 51 54 53 6 5 66 6 1 62 59 6 0 6 4 6 3 7 0 6 9 7 3 7 5
10 8 7 9 1 2 11
99
100
95
94
9 6
9 7
90
91
89
93
9 2
98
4 6 5 2 1 3
81
8 2
80
8 6
8 7
88
84
83
85
45
19 1 7 15 14 1 6 18
43
2 3 2 1 2 0 22
41
2 4
39
3 7
33
35
34
2 9
30
27
26
2 8
3 2
31
3 6
38
2 5
40
4 2
44
13
4 6
IC 7 001
MN 6627 954M A
S ER V O PROCE SS OR
C
726
4
0.1
C 76 01
6 .3 V 33
4. 7
R 76 01
C 76 14
6 .3 V 100
C 767 0
0.1
C 7626
0.1
Q76 01
B1 A DCF000001
L AS ER DRI V E
TO OPTIC A L
PICK UP UNIT
5. 6 R 76 50
+
S PINDLE MOTOR
C 7 334
10 V22 0
C 7 335
0.1
+
TR AV ER S E MOTOR
C 76 13
0.1
GND1
6
5
8
9
10
1 2
11
7
2
1
4
3
14
13
1 6
15
CN 7 001
5. 6 K
R 7 3 27
27 K
R 7 349
10
R 7 33 6
100
R 7 335
1 k
R 7 33 2
22k
R 7 331
3.3 k
R 7 3 2 3
330
R 7 3 2 5
2 . 7 K
R 7 3 2 9
C 7 35 2
3900P
1
k
R
7
339
C 7 338
0.05 6
19 18 1 7 2 0 15 1 6
14 1 2 9 11 10 13
22 2 3 30 2 1 2 8 27 2 4 2 5 26
2 1 6 7 2 9 8 3 4 5
IC 7 00 2
B A 5948FPE 2
4 CH DRI V E IC
MLD
7 .5 V
MCLK
MD A T A
R S T
S T A T
BLKCK
PGND
3.3 V
S T_IN
T X
LD S W
DGND
S T_CLK
A GND
A GND
DGND
S T_RE Q
RE S ET_ S W
LCH OUT
RCH OUT
LO A DING
A
9
A
11
TRP TR
V
P
B
A
1
A
0
A2 A
4
A6 A
8
A7 A
5
A
3
A
1
A
10
NWE B
A
0
PC NR
AS
NC
AS
PR
A
M
V
DD15
PR
A
M
V
DD33
PR
A
M
VSS
33
S
POUT
F
A
B
E
GND
T-
F-
F+
T+
LPD
V REF
LD GND
GND (GU A RD)
GND (GU A RD)
LD
V CC
P
V
CC1
D4+
D1-
P
V
CC
2
NC NC NC NC
NC NC NC IN
2
NC PC1 PC
2
IN1 GND PGND1
FO G A IN
GND
IN4 IN3
V
CC
FOP
V
REF
PGND
2
D3+
D
2
-
D3-
D
2
+
D1+
D4-
TR V G A IN
[50] A RFFB
RFIN
A
B
F
E
D
C
PD
LD
V REF
CEN V
AV DD 2
RFEN V
AVSS2
IODD 2
[ 26 ] D VSS 1
D V DD1
O S CIN
RFOUT
A RFDC
[49] A RFOUT
CTRCR S
S R V MON0
S R V MON1
D V DD 2 [ 76 ]
X2
X 1
REGON
D5
D 7
D8
D9
D15
D13
D11
D10
D1 2
D14
D 6
S DRCK [100]
DR V DD
NTE S T
D1
D3
D4
D0
D 2
IODD1 [ 77 ]
D VSS2
A
RFIN IREF
OUTL
T
X
MLD
E
X
T1
FL
A
G
S
T
A
T
NR
S
T
MCLK
E
X
T
2
OUTR
E
X
T0
PLLF
A
VSS
1
S
MCK
PMCK
D
VSS
3
BLKCK
MD
A
T
A
AV
DD1
PLLF0
D
S
LF
D
QSY
T
X
T
N
S
R
V
MONON
W 7 0 2 5
0
W 7 0 2 3
0
W 7 01 7
0
W 7 0 26
0
W
7
0
2
1
0
W
7
01
6
0
W 7 0 2 4
0
W
7
013
0
W 7 01 2
0
W 7 014
0
W 7 0 22 0 W 7 0 2 0 0 W 7 019 0 W 7 018 0
W 7 015
0
W
7
0
27
0
M 7 301* M 7 30 2 *
W 7 005
0
W 7 0 2 9
0
W 7 0 2 8
0
W 7 00 6
0
W 7 00 7
0
W 7 008
0
W 7 009
0
W 7 010
0
W 7 001
0
W 7 003
0
W 7 004
0
W 7 00 2
0
W
7
01
1
0
V REF
(RF)
LB
76
01
LB
76
0
2
LB
76
04
LB
76
03
C 76 05
1 2 P
C 76 0 6
1 2 P
LB 76 01-LB 76 04
J 0 JY B0000013