Sharp CD-C440W Service Manual page 17

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