Block Diagram - Sharp CD-PC1881V Service Manual

TO MAIN SECTION
1 2 3 4 5 6 CNP11
R L
7 1
IC4
BA4558F
4
OPE AMP.
5 3
R L
17 26 50 51 56 49
P0/DFCK
P1/DFIN
54 XVDD
+5V 47 LVDD
IC2
VDD
27
LC78631E
6 AVDD
SERVO/SIGNAL
CONTROL
52
53
4 9 11 13 15 19 20 23 24 28 29
10 12 16
+B1
32 40 4344
22
AGND
Q52
IC1
+5V
64 VCC1 LA9241M
SERVO AMP.
LASER
Q1
62 LDO
DRIVER
1 2 3 4
PICKUP UNIT
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M
9 8 7 6 5 4 3 2 1
CNS10 10
9 8 7 6 5 4 3 2 1
CNP10 10
Q51
39
38
45
41
72
67
80
78
77
64
+B1
53
CE +B5
52
DAT
CL 51
42 41 20 40 24 18 28 39
54
DRF
SL+. SL–. DRF
31
SL+
IC3
SL– 30
M63001FP
SLD 25 FOCUS/
29
SP 23 20 TRACKING/
SPO 27 17 SPIN/SLED
2
FD 16
DRIVER
TO 15 1
6 7 4 5
23 15
M1
SPINDLE
MOTOR
M
M2
SLED
MOTOR
M
Figure 15 BLOCK DIAGRAM (1/3)
– 15 –
TO MAIN
SECTION
JKV1
VIDEO OUT
6
ICV4
VIDEO
OPERATION
AMP.
NJM2267M
1
XV2
27MHz
QV1
+B1
QV2 QV3
38 37 36
XV1
4.19MHz
35
29
22
21
14
8
16 26 27
CNPV2 1 2 3 4
TO MAIN SECTION
PICKUP IN
SW4
CD-PC1881V
+B1
QV4
6 20
1
VDD
21
27
36
DQ12 ICV3
35
DRAM
40
39 DQ15
SDM4260C
UCAS
28
LCAS
29
~ ~ ~ ~ ~
2 5 7 10 13 14 16 19 22 26 31 34
~ ~ ~ ~ ~
38 42 45 48 49 52 54 56 58 62 70 73 53
6
57
86 11 64
VOUT1
12 69
68 MD12
18 74
65
MD15 26 76
30 91
14 X2
ICV2
94
37
MPEG DECOEDER
13 X1
43 96
35 D61012GC
AUDO
50 100
32
AUBCK
2
HD7
33 AULRCK
5
HD4
95 CDC2PO
7
97 CDLRCK HD3
VDD,CKSEL,HSELX,
99 CDI HD0 10
HSELAAVDD,
~ ~
1 15 17 23 25 36 44 51 63 75 83 84 92
~
13 12 11 64 57
15 PWR_MPEG
ICV1
40 X2
MPEG CONTROLLER
41 X1
IX0313AW
18 MDI
19
MDO
20
MCK
22 MBUSY
CD SOL
~ ~ ~
6 7 9 25 45
14 16 17 33 39 42 50