Sharp QT-CD111, Service Manual

Page: 11 / 32

QT-CD111/111C
– 11 –
Figure 11 SCHEMATIC DIAGRAM (2/4)
7 8 9 10 11 12
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
L802
0.68
µ
H
CNS803
BI803
SW702
PICKUP IN
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
CNS801
B1801
1
CNS802 BI802
R833
5.6K
R835
470
C830
2P
(CH)
C833
0.001
R836
47K
C834
0.033
R832
56K
C831
0.0027
R838
33K
R837
47K
C832
27P
(CH)
R834
1K
C822
220P
IC804
BA5914FP
FOCUS/TRACKING/SPIN/SLIDE DRIVER
C844 330/10
R810
82K
D802
1N4148
R849 100K
C851
0.022
C821
1/50
R827 220K
C846
330/10
Q804
8050D
R877
220
C889
10/16
ZD801
MTZJ5.6B
R878
100
C887
0.022
R875 10K
R876 10K
R873
100
C890
100/10
C867
10/16
R874
100
C868
10/16
XL801
16.93MHz
R880
100
C843
100/10
C873
0.01
L801
0.82
µ
H
R860
1K
IC802
LC78623D
SERVO/SIGNAL CONTROL
C847
0.01
0.047
C842
27K R857
1.2K R856
C841
0.047
C802 47/16
R801
1K
C801
0.01
C870
0.0022
C869
0.0022
R858
680
C850
0.1
C845
4.7/50
R871
4.7K
6 5 4 3 2 1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
5
4
3
2
1 5
4
3
2
1 5
4
3
2
1
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
9
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
1
2
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
15
16
33
34
33
34
35
36
37
38
39
41
40
42
43
44
45
46
47
48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
47
48
0V
3.5V
3.5V
2.5V
2.5V
7.4V
7.4V
0V
0V
2.7V
3.8V
3.2V
3.5V
3.5V
2.5V
0V
0V
0V
0V
2.5V
2.5V
+3.8V
-3.2V
0V
4.8V
7.4V
5.5V
+B
AUDIO GND POWER GND DIGITAL GND D7.4V L-CH R-CH
+B
+B
+B
+B
+B
+B
+B
LD
VR
PD
GND
FO–
FO+
TR+
TR–
PD
VR
LD
E
K
C
B
A
F
MON
LD
FO–
FO–
FO+
FO+
TR+
TR+
TR–
TR–
F
B
A
E
K
+B
+B
+B
+B
+B
+B
+B
+B
PU-IN
SL–
SL+
SP–
SP+
FO+
FO–
TR–
TR+
TR+ TR– FO– FO+
K
A
B
E
F
DEF
NC
C
C
D
LI
C
S–
M
V+
V–
OF
FL
S
FF
JP
–
TEST1
CS
TEST5
4.2M
16M
TST11
RES
CQCK
COIN RWC
SQOUT
WRQ
FSX
SBCK
EFLG
SFSY
SBSY
PW
XVSS
XIN
XOUT
XVDD
MUTER
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
NC
MUTEL
TEST4
TEST3 DOUT C2F EMPH CONT5 CONT4 CONT3 CONT2 CONT1 VDD FSEQ PCK JP– JP+ TGL TOFF
TES
HFL
V/P–
CLV–
CLV+
TEST2
EMFIN
EMFO
Vss
FR
VVDD
ISET
VVss
PDO
TAI
DEFI
GND
VO4–
VO4+
VIN4
VIN4'
BIAS IN
VCC
VCC
VIN3'
VIN3
VO3+
VO3–
OP IN +
OP IN -
OP OUT
GND
VO2-
VIN1'
NC
NC
GND
VIN2
VIN2'
VO2+
MUTE
VO1-
VIN1
VO1+
CD MOTOR PWB-B
P12 1 - E
TO MAIN SECTION
PICKUP UNIT
M
M
VOLTAGE
2V
0V
0.1V
2.2V
0V
2.5V
0V
2.5V
0V
0V
0V
4.1V
4.1V
5V
0V
2.7V
2.4V
0V
0V
0V