Service manual
– 15 –
CD-C422/C422C/C2800/C2800C
Figure 15 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
+5V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
SPIN
MOTOR
M
M
M2
SLIDE
MOTOR
PICKUP UNIT
9
IC2
LC78623D
SERVO/SIGNAL
CONTROL
+B1
IC5
M56748FP
DRIVER
IC1
LA9241M
SERVO AMP.
6
1
9
5
+B1
+12V(+B5)
( TO IC401 )
RES. CQCK. COIN
SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE
Q93
Q91
SL+. SL–. DRF
7
3
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)
SOL
9
8
7
6
5
4
3
2
1
CNP10
M
+5V
62
64 45 3623 43
37
38
39
40
24
25
10 10
265853
10
12
20
32
40
43
44
5352515431302923271615
4144
Q1
TO MAIN SECTION
IC91
TA7291
MOTOR
CONTROL
XOUT
EFMO
EFMIN
CLV+
JP–
CONT2
CONT1
RCHO
RVSS
LVSS
LCHO
VVDD
VDD
LVDD
RVDD
XVDD
SW1
OPEN/CLOSE
SW2
MECHA UP
SW3
DISC No.
M3
LOADING
SOLM1
TO DISPLAY
SECTION
CNS10