Schematic Diagram; A) Cd Servo Circuit - Panasonic SA-AK450P Service Manual

19 Schematic Diagram

19.1. (A) CD Servo Circuit

1 2 3
SCHEMATIC DIAGRAM - 1
A
CD SERVO CIRCUIT
OPTICAL PICKUP CIRCUIT
(FOR REFERENCE ONLY)
LASER DIODE
CN7001
6
1 VCC 1
8
2 F 2
B
3 E 3
11 C
4 LD 4
C
12
5 LD GND 5
6 GND 6
7 A 7
8 GND (GUARD) 8
1 GND NBOUT
8
9 B 9
10 VREF 10
2
VCC GND 7
11 LPD 11
C
12 GND (GUARD) 12
4
3
BIN NAOUT 6
9 13 T- 13
14 T+ 14
C 10
5
4 AIN VREF
5
15 F- 15
C
16 F+ 16
2
3
C
D
E
14 16
C7335
F
0.1
C7334
10V220
13 13
62 62
39 38
G
62
+
M7301
TRAVERSE MOTOR
H
1 2 3
4 5 6
: + B SIGNAL LINE
W7022 0 W7020 0 W7019
R7601 C7626
C7601 C7670
4.7 0.1
6.3V33 0.1
Q7601
B1ADCF000001
W7025
0
LASER POWER DRIVE W7017
0
C7614
R7650 5.6
6.3V100
W7023
0
C7613
0.1
W7026
0
62
28
VREF
W7024
0
62
90
GND1
R7327 R7349
1k 18k
TRV GAIN
R7336
10
C7352
0.018
R7329
1k
FO GAIN
17 18 19 20 21 22 23 24 25 26 27 28
GND
IC7002
BA5948FPE2
4 CH DRIVE IC
C7338
0.056
GND
12 11 10 9 8 7 6 5 4 3 2 1 R7323
3.3k
R7325
330
R7335
100
62
37 36
+
M7302
SPINDLE MOTOR
4 5 6
7 8 9
: CD DA SIGNAL LINE : CD SIGNAL LINE
0 W7018 0
C7218
62
0.082
51
R7221
(RF) 100
C7241
1000P
W7014
R7212 C7231
0
6.3V220
820
C7217
0.1
W7005
0
R7211
C7230
82k
0.1
62
24
C7244
0.015
C7223
W7012
C7216
0 50V4.7
680P
C7203
C7161
6.3V220 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
0.1
50
W7015
49
0
C7204
48 ARFDC
0.1
C7102
47 AVDD2
[50] ARFFB DVDD2 [76]
0.47
[49] ARFOUT IODD1 [77]
46 RFIN
C7142
62
45 RFOUT
3300P 50
44 RFENV
C7107
43 CENV
0.022
42 LD
41 PD
40 A IC7001
39 C MN6627954MA
SERVO PROCESSOR/
38 B
DIGITAL SIGNAL PROCESSOR/
37 D DIGITAL FILTER D/A CONVERTER
36 F
35 E
34 VREF
R7111
33 CTRCRS
10k
32 OSCIN
31 AVSS2
62
88 30 SRVMON1
[26] DVSS1 SDRCK [100]
62
89 29 SRVMON0
C7154 0.1
28 DVDD1
C7155 0.1
27 IODD2
26
R7328 10k
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
R7330
5.6K
C7315
0.47
R7331
22k
R7315
3.3k
R7332
1k
7 8 9
67
10 11 12
62
14
D7650
MAZ80560ML 62
R7217
1k
62
C7225
1000P
C7226
1000P C7228
50V1
R7218 1k
62
13
W7010
C7263
0.1 0
71 72 73 74 75 C7234
0.1
W7009
76
0
C7235
77
16V10
DVSS2 78 W7008
0
REGON 79
X2 80
W7006
X1 81 0
W7007
NTEST 82
0
D2 83
62
D1 84 12
D0 85
D3 86
D4 C7233 C7232
87
0.1
6.3V220
D5 88 62
7
D6
89 62
8
D7 90
62
9
D15 91 62
31
D14 92
DRVDD 93
62
4 R7254 62
R7253
D13 94 3
1K
10
D12 95
62
D11 96
C7166
W7003 W7001 S7201
0.01
62
D10 97 REST SW
0 0
D9 98
D8 99
100
5 4 3 2 1
R7220
W7002 W7004
1M
0 0
1 3
X7201
H2B169500005
2
SA-AK450P/PC CD SERVO CIRCUIT
10 11 12
SA-AK450P / SA-AK450PC
13 14
A
62
16
19
B
18 C7227
50V1
62
17
C
LB7262-LB7264
D0GBR00JA008
CN7002
22 AGND
21 LCH OUT
20 AGND
19 RCH OUT
C7253
18
DGND
470P
D
W7029
17 ST_IN
0
16 ST_CLK
15 ST_REQ
14 3.3V
TO
13 DGND
MAIN CIRCUIT
12 LD SW
(CN2801) IN
11 TX
SCHEMATIC
W7028 C7243
10 7.5V
0 0.1 DIAGRAM-5
9 PGND
8 MCLK
7 MDATA
6 MLD
E
5 BLKCK
4 STAT
3 RST
2 RESET_SW
1 LOADING
1
2
F
62
11
62
10
G
H
13 14