Sharp CD-C440W Service Manual page 17

+B
C50
0.1
R38
C34
33K
0.033
R36
R37
47K
47K
3 C32 R34
K 27P 1K
R32
56K
R35
C31
470
1 0.0027
C53
220P
GND
C21 C90
1/50 0.01
D2
1SS133
+B
D7
RL104A
D6
RL104A
D5
RL104A
C46
R49
0.022 10K
CD_PUIN
21 20 19 18 17 16 15 14 13 12
TO MAIN SECTION
P20 1-B,C
• The numbers 1 to 12 are waveform numbers shown in page 37.
7
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R77 1K
R46 1K
R47 1K
R45 1K
R78 1K
R48 1K
R60
C22
1K
0.01
+B
µ-COM
INTERFACE
DEF1
1
R18
2 TA1
3.3M
PDO
2KX8
3
C41 RAM
R58
0.047 680
4 VVSS
ISET
5
C42
VCO ERROR
0.047
CLOCK COERECT
OSC
FLAG
R57
CONTROL CONTROL
27K
VVDD
6
FR
7
R56
VSS
8
1.2K
EFMO
9 SLICE
SYNC-DETECT
LEVEL
EFMIN EFM DEMODULATE
10
CONTROL
IC2
TEST2
11
LC78623E
CLV+
CLV
12
DIGITAL SERVO/SIGNAL
CLV_
13 SERVO
CONTROL
V/P
14
HLF
EXTERNAL
15
SERVO
TES
COMMAND
16
+B
C59
0.022
CD_LD_M–
+B
LOADING MOTOR
DRIVER
IC91
TA7291S
R97
3.9K
+B
R98
C91
6.8K
47/16
8 9
Figure 17 SCHEMATIC DIAGRAM (2/14)
CD SIGNAL
+B
EFLG
48
SBSY
SUB-CODE
47
XL10
XVSS 46
R61
XIN
45
220
X-TAL
XOUT
GENERATOR 44
XVDD
43
MUTER
42
+B
RVDD
41
RCHO
40
R74
C68
RVSS
39
2.7K
10/50
C67
LVSS 38
10/50
LCHO
37
R73
36
LVDD 2.7K
MUTEL
35 C43
330/6.3
NC 34
TEST4
33
DIGITAL
OUTPUT OUT
SWITCHING
DRIVER
Q94
KRC107 M
3 2
R82
R94
150
6.8K
1
L1
0.82µH
C51
100/16
0.022
+B
Q91
KTA1271 Y
R96
10K
Q93
KRC102 M
3 2
R92
2.2K
1
SOL
SOL
1
GND(M)
2
M–
M–
3
M+
M+
4
D_GND
5 GND(D)
OPEN CLOSE
6
CD_D_NO
DISC NO.
7
D_GND
GND(D)
8
9 MECHA UP
D_GND
GND(D)
10
9 8
11 10
TO MAIN
SECTION
P20 3-H
10
– 17 –
CD-C440W/CP-C440W
MAIN PWB-A1(1/3)
+B
Q84
TO MAIN
1
KTC3199 GR SECTION
CD_R-CH
C70
R76
R80
220P
390
4.7K
A_GND
TO DECK
2
SECTION
C69
R75
220P CD_MUT P23 12-E
390
3
CD_L-CH
R79
C82
4.7K
1/50
+B Q83
4
KTC3199 GR
REGULATOR
Q81
KTC3203 Y
+B CD_7V
5
R81
220
R84
22
C52
CD_GND
6
+7.3V
M_12V TO MAIN/CD
7
SECTION
SOLM2
SOLENOID
1 1
2 2
M3
–
3 3
M
T/T
4 4
UP DOWN
+
5
5 SW1
OPEN
6 6
CLOSE
7
TRAY MOTOR
8
PWB-G
9
10
SW2
MECHA UP
1 1
SW3
2 2 DISC NO
11 12
P21 9-A
TO MAIN
SECTION
P20 1-C
P21 9-A
TO MAIN
SECTION
P21 8-H
P21 7-H
P23 12-B