Block Diagram - Sharp CD-CH1500 Service Manual

CD-CH1500
PICKUP IN
33 32 31 30 29 28 27 26 25 24 23 22
NM1 NM2
MOB1 SPINDLE SLED
MAIN CAM MOTOR MOTOR
MOTOR
M
NSW1
M
17
SL+
18
SL–
19
SP–
20
SP+
21
22
16
26
32
28
29
30
31
8 24
7 11 23
+5V
Q5
Q3
X1
16.934MHz
CD/CD-RW_SEL
21 20 19 18 17 16 15 14 13 12 11 10
TO MAIN PWB
Figure 14 BLOCK DIAGRAM (1/6)
MOB2
TRAY
MOTOR
M
M
15
14
13
12
10
9
6
5
TR– 4
TR+ 3
FO+ 2
FO– 1
25 27
31 30 29 28 24 35 26
33 FOO
34
TRO
36 RFGC
37 TEBC
38 SEL
IC2
40 FMO
TC9490F
41 DMO
SERVO/SIGNAL
46 XI
CONTROL
47 XO
6 DVDD
15 PVDD
25 AVDD
39 AVDD3
43 DVDD
48
XVDD
51 DVDD
50 53 57 58 59 60 61 62 63
+5V
9 8 7 6 5 4 3 2 1
(IC901)
– 14 –
LASER
DRIVER
+3.3V
Q4
9 8 7 6 5 4 3 2 1
12 11
13 14 20 21 22 23 24
15 17 18 19
Q1
20 19 18 17 16
13
/HSO
DVSS
7
AVSS 22
DVSS 42
TESIN
44
XVSS 45
DVSS 49
DVSS
54
VSS 56
64
KEY
SWB101-SWB110
CNP1
+5V