Sharp CD-C440W - Block Diagram

– 13 –
CD-C440W/CP-C440W
Figure 13 BLOCK DIAGRAM (1/3)
1
2
3
4
5
98
6
7
20
12
13
24 25 30
31
3222
34
35 36
10 11
27 26 28
29
PU-IN SW
XL1
XIN
LD0
FIN2
JP–
CV+
SLC
SL1
FIN1 E F
TO
FD
SPO
SP
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
6
+4.9V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
SPINDLE
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
IC2
LC78623E
SERVO/SIGNAL
CONTROL
+B4
IC5
M56748FP
DRIVER
IC1
LA9240M
SERVO AMP.
RES. CQCK. COIN
SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE
SL+. SL–. DRF
+4.9V
62
64 45 3623 43
37
38 39
40 24 25
5853
10 12 20
32 40 43 44
5352515431302923271615
4144
Q1
+4.9V
Q81 +7.3V (B4)
REGULATOR
TO MAIN SECTION
XOUT
EFMO EFMIN CLV+ JP–
CONT2
CONT1
27 26
SOL
SPEED H/L
RCHO
RVSS
LVSS
LCHO
VVDD
VDD
LVDD
RVDD
XVDD
TO MAIN SECTION
1
9
7
3
2
5
8
6
CD O/C SW
CD D.NO
CD U/D
SW1 OPEN/CLOSE SW
SW3 DISC NO
SW2 MEHCA UP
+B4
Q94
CONT1 CONT2
SPEED HIGHT/LOW
DRIVER
SWITCHING
IC91
LOADING MOTOR
DRIVER
M
LOADING MOTOR
UP/DOWN
Q93
Q91
SOLM2 SOLENOID
+B2
SOL