Sharp QT-CD161 Service Manual page 15

R860
C847
1K
0.01
6 4 6 3 6 2 1 6 6 0 5 9 5 8 5 7
1
R858 C841
2
680 0.047
3 PDO
C842
1 DEFI
VVss
4
0.047
TAI
2
ISET
5
IC802
R857
VVDD
6
27K
LA78623D
FR
7
R856
Vss
SERVO/SIGNAL
8
1.2K
EMFO
9
CONTROL
EMFIN
10
TEST2
11
15 HFL
16 TES
12 CLV+
13
CLV–
14
V/P
15
16
17 18 19 20 21 22 23 24
L801
0.82µH
+B
1
VCC
MUTE
2
3
VIN1
4
VG1
5
VO1+
6
VO1–
7
GND
8
GND
9
GND
10 VO2–
11
VO2+
12 VG2
13 VIN2
14
REG OUT
REG-B
15
C844
330/10
L802
0.68µH
• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
7 8
F
E
B
A
K
R801
1K
C801
0.01
6 5 5 5 5 4 5 3 5 2 5 1 0
5 4 9
48
47
XVSS
46
XIN
EFLG 45
48
SBSY
47
XOUT
44
XVDD
43
MUTER
42
C868
RVDD
41 10/16
RCHO
40
RVSS
39
C867
LVSS
38
NC
34
10/16
TEST4
33 LCHO
37
LVDD
36
C890
MUTEL
35
100/10
34
33
R880
32
25 26 27 28 29 30 31
100
C873
C843
0.01
100/10
+B
VCC 30
BIAS IN 29
VIN4 28
27
VIN4G
VO4+ 26
VO4– 25
24
GND
GND 23
22
GND
VO3– 21
20
VO3+
VG3 19
VIN3 18
CD 17
RESET 16
9
Figure 15 SCHEMATIC DIAGRAM (2/6)
– 15 –
5
4
3
2
1
1
2
3
4
5
6
7
8
XL801
16.93MHz
R874
C870
100 0.0022
C869
R873
0.0022
100
TR+
TR–
FO–
FO+
SP+
6
SP–
5
SL+
4
SL–
3
PU-IN
2
1
TUNER GND
10
QT-CD161/141
LD
LD
PD
VR
M0N
K
K
5 5
E E
4 4
A
A
3 3
B
2 2
F
1 1
B
F
C
TR–
1 1
TR+
2 2
FO+
3 3
FO–
4 4
GND
TR+
5 5
PD
FO+
6 6
VR
7 7
8 LD
8
FO–
TR–
TR–
PICKUP UNIT
IC801
PIN PIN PIN
NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE
1 2.5V 23 2.5V 0V
45
2.5V 24 2.5V 2.5V
2 46
2.5V 2.5V 2.5V
3 25 47
4 2.5V 26 2.5V 0V
48
5 2.5V 27 2.5V 0V
49
2.5V 28 2.5V 2.4V
6 50
7 2.5V 29 2.5V 4.1V
51
8 2.5V 30 2.2V 4.7V
52
9 2.5V 2.2V 0V
31 53
0V
10 2.5V 32 54 0V
11 2.5V 33 0V 55 5V
12 2.5V 34 5V 5V
56
5V
13 2.5V 35 57 2.5V
14 2.5V 36 4.8V 58 2.5V
2.5V 37 0V 0.9V
15 59
2.5V 38 5V 0.9V
16 60
17 2.5V 39 0V 61 2.1V
18 2.5V 40 0V 4.2V
62
2.5V 41 1.5V 0V
19 63
20 2.5V 42 2.4V 64 5V
2.5V 43 2.5V
21
22 0V 44 2.5V
CD MOTOR PWB-B
M701
6 6
M
SPINDLE
MOTOR
5 5
M702
4 4
M
SLED
MOTOR
3 3
2 2
SW702
PICKUP IN
1 1
IC803
PIN PIN
NO. VOLTAGE NO. VOLTAGE
0V
1 7.2V 16
2 0V 17 0V
3 2.8V 2.5V
18
0V 2.6V
4 19
5 3.6V 3.5V
20
6 0V 2.9V
21
GND GND
7 22
23
8 GND GND
9 GND 24 GND
10 3.2V 25
3.2V
11 3.2V 26 3.2V
12 0V 27 0V
2.6V 28 2.6V
13
29
14 5.1V 0.4V
15 6.6V 30 7.2V
11 12