A) Cd Servo Circuit - Panasonic SA-AK750PL 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
10
C
4 AIN VREF 5
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
G
62
+
M7301
TRAVERSE MOTOR
H
1 2 3
4 5 6
: + B SIGNAL LINE
W7022 0 W7020 0
R7601
C7601 C7670 C7626
4.7
6.3V33 0.1 0.1
Q7601
W7025 B1ADCF000001
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
1k
R7336 TRV GAIN
10
C7352
0.018
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
R7325
R7335
38 100
62
37 36
+
M7302
SPINDLE MOTOR
4 5 6
7 8 9
: CD DA SIGNAL LINE : CD SIGNAL LINE
W7019 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
82k C7230
0.1
62
24
C7244
0.015
C7223
W7012
C7216
6.3V4.7
0
680P
C7203
C7161
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
6.3V220
0.1
50
W7015
49
0
C7204
48 ARFDC
0.1
C7102
47 AVDD2 [50] ARFFB
0.47
[49] ARFOUT
46 RFIN
C7142
62
3300P 50 45 RFOUT
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
R7349
62
18k 88 30 SRVMON1
[26] DVSS1
62
29 SRVMON0
89
C7154 0.1
28 DVDD1
C7155 0.1
27 IODD2
R7329
1k 26
R7328 10k
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
R7330
5.6K
C7315
0.47
R7331
3.3k 22k
R7315
330 3.3k
R7332
1k
7 8 9
67
10 11
62
14
R7217
1k
C7225
1000P
C7226
1000P
R7218 1k
62
13
W7010
C7263
0
0.1
67 68 69 70 71 72 73 74 75
C7234
0.1
W7009
76
0
C7235
77
6.3V10
DVSS2 78 W7008
0
REGON
DVDD2 [76] 79
IODD1 [77]
X2 80
W7006
0
X1 81
NTEST
82
D2 83
D1 84
D0 85
D3 86
C7233 C7232
D4 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
R7254
4
D13 94 R7253
1K
10
D12 95
D11 96
SDRCK [100] C7166
W7003 W7001
0.01
D10 97
0 0
D9 98
D8 99
100
9 8 7 6 5 4 3 2 1
W7002 W7004
0 0
1
X7201
H2B169500005
10 11
SA-AK750PL
12 13 14
A
D7650
MAZ80560ML 62
62
16
19
B
62
18 C7227
50V1
C7228 62
17
50V1
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
W7007
15 ST_REQ
0
14 3.3V
62
TO
12 13 DGND
MAIN CIRCUIT
12 LD SW
(CN2801) IN
11 TX
SCHEMATIC
W7028 C7243
10 7.5V
DIAGRAM - 4
0 0.1
9 PGND
8 MCLK
7 MDATA
6 MLD
E
5 BLKCK
4 STAT
62
3 3 RST
2 RESET_SW
62
1 1 LOADING
S7201
62
REST SW
2
R7220
1M
F
3
2
62
11
62
10
G
SA-AK750PL CD SERVO CIRCUIT
H
12 13 14