Schematic Diagram - Panasonic SA-AK785LM-K Service Manual

16 Schematic Diagram

16.1. CD Servo Circuit
1 2 3
SCHEMATIC DIAGRAM - 1
A
CD SERVO CIRCUIT
B
OPTICAL PICKUP UNIT
(FOR REFERENCE ONLY)
C
CN7001
2
C3 1
1 0.22
VR1 2
3
3
4
12 11 10 9 8 7
5
6
D
7
8 GND GUARD
9
10
1 2 3 4 5 6
11
L1
12 GND GUARD
TRACKING
13
C2
C1
14
0.22
0.47
15
16
L2
FOCUS
E
F
C7335 15 16 17 18 19 20 21 30 22
0.1
GND
IC7002
C7334
BA5948FPE2
10V220
4 CH DRIVE IC
G
GND
14 13 12 11 10 9 8 29 7
TP 39 TP 38
TP 37 TP 36
+
W7014
+
0
M7301*
TRV MOTOR
M7302*
SPL MOTOR
+7.5V
H
1 2 3
4 5 6
: +B SIGNAL LINE : CD AUDIO INPUT SIGNAL LINE
+3.3V
C7626
0.1
W7021
0
W7018
0
R7211
W7008
W7007
0 C7244
0
C7203
6.3V220
W7001
D7650
0
C7204
D7650
0.1
MAZ8056GML
Q7601
B1ADCF000001
40 AVSS2
LASER POWER DRIVE
W7012 W7010
VCC 1 Q7601
39 NC
0 0
C7216
F 2
680P
E 3
38 ARFIN
W7011
LD 4
0
W7009 0 C7614
R7650
LD GND 5 37
6.3V100 ARFFB
5.6
W7006 TP 51
W7017
GND 6 C7161
0
(RF) 0 0.1
A 7
36 ARFOUT
C7613 0.1
W7016
8
TP 90
0
B 9 ARFDC
35
W7013 0
C7223
VREF 10
50V4.7
LPD 11 34 RFIN
TP 50
W7003 C7102
12
(RF) 0.47
0
T- 13
33 RFOUT
C7142
T+ 14
3300P
F- 15 RFENV
32
F+ 16
31 CENV
C7107
0.022
30 AVDD2-2
29 LD
W7002
0
28 PD
TP 28
VREF
27
A
W7004
0
26 C
25 B
TP
(VREF)
24 D
23 F
TP 87 22 E
R7327 R7349
21 AVSS2-2
1K 18K
23 24 25 26 27 28
R7329 R7328
1K 10K
C7352
C7339
0.018
0.018
6 5 4 3 2 1
R7323 R7331
6.8K 27K
R7325 R7315
R7335 100 330 3.3K
R7332 1K
4 5 6
7 8 9
C7255
0.1
C7227
R7217 C7225
W7019
50V1u
1K 1000P
0
R7218 C7226 C7228
1K 1000P 50V1u
C7230
R7221
0.1
100
C7217
0.1
C7231
6.3V220
82K
TP
0.015
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
IC7001
MN6627553PA
SERVO PROCESSOR
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5
C7154
0.1
C7155
0.1
7 8 9
10 11 12 13
TP 16 TP 14
TP 19
TP 18
TP 17
57 58 59 60
TP 13
CN7002
+3.3V
25
W7020
24
0
+1.5V
DVDD2 61 23
22
NTEST2 62 21
20
TEST 63 19
TP 25
18
SBCK / IPFLAG 64 17
R7260 TP 12
16
100
C7253
TX 65 15
470P
TP 7 D.GND
14
MCLK 66 13
TP 8
12
MDATA 67 11
TP 9
10
MLD 68 9
R7253 TP 4
8
10
STATS 69 7
W7026
C7243 0.1
TP 31
6
0
BLKCK 70 W7025 5
0
4
NRST 71 3
W7024
R7254
2
0 1K
TP 3
DVSS2 72 1
C7166
0.01
X2 73
W7023 X7201
H0H169500013
0
X1 74 S7201
R7220 REST SW TP 2
1M
IODVDD2 75
S7202
NSRVMONON 76 CD OPEN SW
R7214
TP 24 X7201 TP 1
270
FLAG0 GIOO 77
GI01 78
GI02 79
DQSY 80
4 3 2 1
TP TP TP TP
TP
TP 10
SA-AK780/785 CD SERVO
10 11 12 13
14
A
B
C
(1)
LCH OUT
A.GND
RCH OUT
+3.3V
SRDATA2(SD)
SRDATA1(SD)
BCK(MD & SD)
LRCK(MD & SD)
SRDATA(MD & SD)
+3.3V
D
LD_SW TO
MAIN CIRCUIT
D.GND
(CN2801) IN
IPFLAG(SD)
SCHEMATIC
TX
DIAGRAM - 5
MCLK
MDATA
MLD
BLKCLK
STAT
/RST
RESET_SW
LOADING
E
CD OPEN SW
P.GND
(25)
+7.5V
F
G
11
CIRCUIT
H
14