Sharp CD-C471H Service Manual page 23

C28
0.1
R44
33K
6
33
1 R42
K
47K
5
R39
P
1K
3
K
38 C23
70 0.0027
C22
220P
C57
0.001
C35
1/50
D1
1SS133
D4
RL104A
P12
1 2 3 4 5 6 7 8 9 10 11 12 13 14
CNS12
TO DISPLAY PWB
P24 2-A
7
R57 1K
R61 1K
R62 1K
R63 1K
R60
C38
1K
0.01
+B
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50
U-COM
0V INTERFACE
DEF1
1
0V TA1
2
R51
3.3M 0V
PDO
2KX8
3
C39 RAM
R50
0V
0.047 680
VVSS
4
1.9V ISET
5
C40
0.047
VCO CLOCK ERROR COERECT
OSC CONTROL FLAG CONTROL
R52
27K
VVDD
4.8V
6
R53
0V FR
7
1.2K
0V VSS
8
SYNC-DETECT
EFMO
2.5V
9
EFM DEMODULATE
SLICE LEVEL
2.5V EFMIN
CONTROL
10
IC2
0V TEST2
11
LC78622K
CLV+
0V
12
SERVO/SIGNAL
CLV
0V CLV–
DIGITAL SERVO
13
CONTROL
4.8V V/P
14
HLF
0V
15
EXTERNAL
SERVO
0V TES OUTPUT
COMMAND
16
11
17 18 19 20 21 22 23 24 25 26
4.8V
+B
C56
0.022
CD_LD_M+
+B
IC81
TA7291S
LOADING MOTOR DRIVER
1 2 3 4 5 6 7 8 9
R81
2.7K
R83
R82
3.9
C82
6.8K
47/16
R85
56 (1/2)
CD SIGNAL
8 9
Figure 23 SCHEMATIC DIAGRAM (2/13)
CD SIGNAL
49
C41
EFLG
48
2.2V
12P
SBSY
SUB-CODE
47
0V
0V
XVSS C42
46
15P
XIN 2.1V
45
X-TAL
R93
XOUT 2.2V
GENERATOR 44
220
XVDD
43
4.8V
MUTER
4.8V
42
4.5V R72
RVDD
41
2.7K
RCHO 2V
40
4FS R74
1BIT RVSS 0V C72
39
390
10/50
DAC
DIGITAL
0V R71
R73
LVSS
38
2.7K
FILTER
390
2V
LCHO
37
4.5V
LVDD
36
C71
MUTEL
10/50
4.8V
35 +B
0V
NC
34
33
TEST4
R55
L61
0V
150
0.82µH
DIGITAL
OUT
C51
C50
100/16
0.022
27 28 29 30 31 32
+B
+B
R54
330
Q51
1
KRC107 M
2
3 2
3
2.9V
0V
R80
0V
1 6.8K
+B
Q91
KTA1271 Y
0V
12V
Q93
12V
KRC102 M
R87
12V
10K
0V
3 2
R86
D91
0V
1 2.2K
1SS133
1
2
3
4
5
6
7
8
9
10
CNP10
CD SERVO PWB-C
10
– 23 –
CD-C471H
R-CH
1
A_GND
2
CD_RCH
L-CH
3
D-GND
4
A_GND
+B 7.3V
5
M_12V
6
CD_LCH
+B
CNP11
Q52
4.9V KTC3203 Y
6.5V
R66
5.5V
220
R64
C75
22
0.001
L99
CD
1 1 3
2.2µH
2 2 2
DIGITAL
3 3 1
OUT
IC99
GP1F32T
OPTICAL FIBER
DATA LINK
JACK PWB-A4
SOLM2
SOLENOID
LOCK
BIM5
SOL
1 6
M3 T/T
GND(M)
2 5
+
UP/DOWN
M+ 3 4
M LOADING
3
M– 4
–
SW1
GND(D) 2
5
OPEN
OPEN/CLOSE
6 1
CLOSE
DISC NO.
7
SENSOR
GND(D)
8
UP/DOWN
9
PWB-F
GND(D)
10
CNS10
SW2
MECHA UP
1 1
SW3
2 2
DISC NUMBER
CNS5
11
CNS11
TO MAIN PWB
P24 6-A
12