Sharp CD-C430H Service Manual page 21

+B
R45
1K
R46
1K
R47
1K
B
C50
0.1
R38
C34
33K
0.033
R36
R37
47K
47K
33
C32
6K
27P
R32
56K
R35 R34
470 1K
C53
220P
C21 D2
1/50 1SS119
+5V
+B
R49
C46
100K
0.022
PUIN
1 2 3 4 5 6 7 8
• The numbers 1 to 12
7
R60
C22
1K
0.01
+B
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50
DEF1
1
R18
2 TA1
3.3M
PDO
3
C41
R58
0.047
680
4
VVSS
ISET
5
C42
0.047
VCO
OSC
CLOCK
R57
CONTROL
27K
6
VVDD
FR
7
R56
8
VSS
1.2K
EFMO
9
SLICE
LEVEL
EFMIN
10 CONTROL
TEST2
11
CLV+
12
CLV
DIGITAL
CLV_
13 SERVO
V/P
14
HLF
15
SERVO
TES COMMAND
16
17 18 19 20 21 22
IC2
LC78623D
SERVO/SIGNAL
CONTROL
+B
+B
C59
0.022
CD-LD M–
LOADING
CD-LD M+ MOTOR DRIVER
IC91
TA7291S
1 2 3 4 5 6
C95
0.001
9
10 11
P22 6 - G,P23 8 - G,P23 9 - G
TO DISPLAY PWB
are waveform numbers shown in page 30.
8
Figure 21 SCHEMATIC DIAGRAM (2/9)
+B
49
EFLG
48
µ-COM
SBSY
SUB-CODE
INTERFACE
47
XVSS 46
XIN
45
X-TAL
XOUT
2KX8 GENERATOR 44
RAM
XVDD 43
MUTER
42
ERROR 41
RVDD
COERECT
RCHO
FLAG
40
CONTROL
39
RVSS
LVSS 38
LCHO
37
SYNC-DETECT
EFM DEMODULATE
36
LVDD
MUTEL
35
34
NC
33
TEST4
EXTERNAL
DIGITAL
OUTPUT
OUT
23 24 25 26 27 28 29 30 31 32
+B
D_GND
Q91
2SB561 C
+B
11.8V
0V
Q93
R96
KRC102 M
10K
11.8V
R95
3 2.2K
2
7 8 9
0V
11.8V
1 0V
R98
10K
12 13 14
9 10
– 21 –
CD-C430H,CP-C430H
MAIN PWB-A1 (1/3)
+B
C96
0.022
C68
10/16
CD_R
R74 R76 C70
2.7K 270 220P
GND
C67 C69
R75
10/16 220P
CD_L
270
R73
2.7K
C43
100/10
C58
0.022
+B
+12V
REGULATOR
Q81
KTC3203 Y
M+12V
5.2V
4V
R82 R81
100 220
4.7V
L1
0.82µH
+4.3V
+B
C51 C52
0.022 47/10
GND
F1
T500mA
L 250V
+B
+5V
D+5V
CD SIGNAL
MOTOR
PWB-F
CNP10 CNS10
+B 1
SOL
1 1
GND(M)
2 2 2
+
M+
3 3 3
–
M–
4 4 4
GND(D)
5 5 5
R99
OPEN CLOSE
6 6 6
10K
DISC NO.
7 7
GND(D)
8 8
MECHA UP
9 9
GND(D)
10 10
1
SW3
DISC NUMBER
2
CNS5
11
20
19
18
17
D_GND
16
15
SOLM2
LOCK
M3
M
SELECT
MOTOR
SW1
OPEN
CLOSE
SW2
MECH UP
12