Sharp CDC2900 - 3-CD Compact Stereo System

– 17 –
CD-C622/C2900
Figure 17 BLOCK DIAGRAM (1/3)
27
1
2
3
4
1
8
6
7
18 24 40 20
4 5
15
23
16 26
27
7
2
2520
29
21 22
35
14
38
39 28 41 42
37 36
PU-IN SW
XL1
XIN
LD0
FIN2
JP–
CV+
SLC
SL1
FIN1 E F
TO
FD
SPO
NC
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
6
+5V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
SPINDLE
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
IC2
LC78622NE
SERVO/SIGNAL
CONTROL
+B1
IC3
M63001FP
FOCUS/
TRACKING/
SPIN/SLED
DRIVER
IC1
LA9241M
SERVO AMP.
RES. CQCK. COIN SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE
Q51
SL+. SL–. DRF
9
8
7
6
5
4
3
2
1
GND (D) MECHA UP GND (D) DISK NO. OPEN/CLOSE GND (D) M– M+ GND (M)
9
8
7
6
5
4
3
2
1
CNP10
M
+5V
+B1
62
64 45 3623 43
37
31 38 39 40
24 25
10
1
2
2
1
3
3
2
1
4
5
6
10
265853
10 12 20
32 40 43 44
5352515431302923271615
4144
Q1
Q52
+4.3V
Q81 +7.3V (B1)
REGULATOR
TO MAIN SECTION
(TO IC601)
XOUT
EFMO EFMIN CLV+ JP–
CONT2 CONT1
LCHO
LVSS
RVSS
RCHO
VVDD
VDD
LVDD
RVDD
XVDD
SW1 OPEN/CLOSE
SW2 MECHA UP SW3 DISC No.
M3 LOADING
SOLM1
TO MAIN SECTION
CNS10
+B5
~~
CNP11
BI1B
2
1
BI1A
CNP99
+5V
2
4 8
33
38
39
46
~
646251
11
22