Read Sharp CD-C423H (serv.man4) Service Manual online
– 31 –
CD-C423H
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Figure 31 SCHEMATIC DIAGRAM (5/10)
C69
220P
220P
C70
220P
220P
R75 270
R76 270
R73
2.7K
2.7K
R74
2.7K
2.7K
D81
1SS133
1SS133
IC91
TA7291S
LOADING MOTOR DRIVER
R86 1K
Q93
KRC102 M
KRC102 M
C22
0.01
0.01
2
SS133
R60
1K
1K
R87 1K
R88 1K
R80 330
IC2
LC78622K
SERVO/SIGNAL
CONTROL
LC78622K
SERVO/SIGNAL
CONTROL
R58
680
680
C41
0.056
(ML)
0.056
(ML)
C42
0.047
0.047
R57
27K
27K
R56
1.2K
1.2K
C43
100/10
100/10
C93
0.001
0.001
R45
1K
1K
R46
1K
1K
R47
1K
1K
C57
100P
C55
100P
C54
100P
C56
100P
C67
10/16
10/16
C68
10/16
10/16
R18
3.3M
3.3M
D91
1SS133
R96
10K
10K
Q91
KTA1271 Y
KTA1271 Y
R98
10K
10K
R95
2.2K
2.2K
R97
5.6K
5.6K
C96
0.001
0.001
C91
47/16
C92
0.022
0.022
L1
2.7
2.7
µ
H
R82
100
100
D7
1SS133
D5
1SS133
C52
47/16
47/16
R70 1K
R71 1K
R79 1K
R78 1K
R77 1K
R72 1K
R99
56
R34
1K
1K
C31
.0027
54
K
R37
47K
47K
R38
33K
33K
6
K
4
33
CNP10
21 22 23
20
24 25 26 27 28 29
32
1 2 3 4 5 6 7 8 9
30
31
2
1
2
1
1
2
3
4
5
6
B
9
5
Y
Z
X
9
8
7
6
5
4
3
2
1
10
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23
24 25 26 27 28 29 30 31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SW3
DISC NO.
DISC NO.
SW2
MECHA UP
MECHA UP
CNS5
SW1
OPEN/CLOSE
OPEN/CLOSE
BIM5
CNS10
XL80
16.934MHz
C82
12P
12P
R81
220
220
C50
0.1
0.1
C59
0.022
0.022
C83
15P
15P
C51
0.022
0.022
/CS
TEST5
X-TAL
GENERATOR
4M
16M
/RES
/CQCK
COIN
SQOUT
RWC
WRQ
FSX
PW
SFSY
SBCK
TEST11
U-COM
INTERFACE
SUB-CODE
EFLG
SBSY
XVSS
XIN
XOUT
XVDD
MUTER
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
MUTEL
TEST4
TEST1
4FS
DIGITAL
FILTER
DOUT
TEST3
DIGITAL
OUT
RAM
ERROR COERECT
FLAG CONTROL
VCO CLOCK
OSC CONTROL
SLICE LEVEL
CONTROL
SYNC-DETECT
EFM DEMODULATE
EXTERNAL
OUTPUT
CLV
DIGITAL SERVO
C2F
EMPH
CONT5
CONT4
CONT3
CONT2
CONT1
VDD
FSEQ
PCK
JP_
JP+
TGL
TOFF
DEF1
PDO
VVSS
ISET
ISET
VVDD
FR
FR
VSS
EFMO
EFMIN
TEST2
CLV+
CLV–
V/P
HLF
TES
SERVO
COMMAND
1BIT
DAC
2KX8
TA1
PUIN
SL–
SL+
DRF
TO MAIN PWB(1/3)
MICON SECTION
P28 1-B
TO MAIN PWB(1/3)
MICON SECTION
P28 1-E
CD_OPEN/CLOSE
MECHA_UP/DOWN
DISC_NO
3
2
1
SENSOR PWB-E
M3 T/T
UP/DOWN
LOADING
UP/DOWN
LOADING
SOLM2
SOLENOID
LOCK
SOLENOID
LOCK
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-F
POWER AMP.
SECTION
P32 2-F
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-E
POWER AMP.
SECTION
P32 2-E
TO MAIN PWB(1/3)
MICON SECTION
P28 1-E
MICON SECTION
P28 1-E
MAIN PWB(1/3)
A.P.SECTION
P29 7-B
MAIN PWB-A1(2/3)
+B
+B
D_GND
(UCOM)
+5V
(DRIVER)
+12V
+4.3V
CD_L
A_GND
GND
CD_R
D_GND
CD-LD(M+)
GND(D)
MECHA UP
GND(D)
DISC NO.
OPEN CLOSE
GND(D)
M+
GND(M)
SOL
SQOUT
COIN
DSP_RES
WRQ
RWC
CQCK
CD-LD(M–)
M
+B
+B
+B
+B
M–
–
+
C80
100/10
C81
0.022
3
2
1
L80
2.2mH
CNP80
CD
DIGITAL OUT
DIGITAL OUT
IC80
GP1F32T
OPTICAL FIBER
DATA LINK
GP1F32T
OPTICAL FIBER
DATA LINK
11
5
CD SIGNAL
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