Sharp QT-CD131H Service Manual page 13

R871
C850
9 4.7K
0.1
48
47
46
45
44
R838
C834
33K
0.033
R836
R837
47K
47K
R833
43
5.6K
- 42
C830
C832 R834
2P R832
27P(CH) 1K
56K
(CH)
41
M
R835 C831
40
470 0.0027
39
F 38
37
36
C822
F
35
220P
34
33
32
D802
R810
1N4148
82K
R827
220K
C821
1/50
R877
+B
MTZJ5.6B
C887
0.022
11 10 9 8 7 6 5
P14 1 - F
TO MAIN SECTION
• NOTES ON SCHEMATIC DIAGRAM can be found on page 21.
7
+B
R860
C847
+B 1K
0.01
6 4 6 3 62 61 60 59 58 57 56 55 54 53 52 51 50 49
1
R858 C841
2
680 0.047
3 PDO
DEFI
1
C842
2 TAI
4
VVss
0.047
5 ISET
R857 27K
6 VVDD
LA78623D
FR
7
R856 1.2K
SERVO/SIGNAL
8 Vss
9 EMFO
CONTROL
10
EMFIN
TEST2
11
12
CLV+
HFL
13 CLV- 15
14 16 TES
V/P
15
16
17 18 19 20 21 22
+B
+B
1
VO1–
+B
2
VO1+
3 VIN1
4 VIN1G
5
NC
6 NC
C846
7 MUTE
330/10
29
8
GND
CONSTANT 9
VIN2G
VOLTAGE
10 VIN2
REGULATOR
Q804
11 VO2+
S8050D
220
+B
12 VO2–
R878
GND
13
100
OP OUT
14
C889
10/16
ZD801
L802
0.68µH
8
Figure 13 SCHEMATIC DIAGRAM (2/6)
F
E
B
A
K
R801
1K
C801
0.01
+B
48
47
46
XVSS
16.93MHz
48
EFLG
XIN 45
47 SBSY
XOUT 44
IC802 XVDD
43 +B
MUTER 42
C868
+B
RVDD
41 2.2/50
40
RCHO
39
RVSS
C867
38
35 LVSS
MUTEL
2.2/50
34 NC
LCHO 37
TEST4
33
LVDD 36
C890
35
100/10
34
33
R880
26 31
23 24 25 27 28 29 30 32
100
+B
C843
L801
100/10
0.82µH
+B
GND 28
27
VO4–
VO4+ 26
VIN4 25
24
VIN4G
BIAS IN 23
+B
22
VCC
30
VCC 21
+B
VIN3G 20
19
VIN3
VO3+ 18
VO3–
17
OP IN + 16
OP IN –
15
+B
9 10
– 13 –
+B
5 5
5
4 4 4
3 3 3
2 2 2
1
1 1
+B
1 1 1
2 2 2
3 3 3
4
4 4
5
5 5
6
6 6
7 7 7
8 8 8
XL801
R874 C870
100 0.0022
R876
10K
R873 C869
100 0.0022
TR+
TR–
FO–
FO+
SP+
6 6 6
SP–
5 5 5
SL+
4 4
4
SL–
3 3 3
PU-IN
2 2 2
1 1 1
11
QT-CD131H/132H
LD
LD
PD
1
VR MON
K
K
E
E
A A
B
F
B
F
C
TR-
TR+
TR+
FO+ FO+
FO-
FO-
GND TR+
PD
FO+
VR
LD
TR– FO–
TR–
PICKUP UNIT
CD MOTOR PWB-C
M701
M
SPINDLE
MOTOR
M702
M
SLED
MOTOR
SW702
PICKUP IN
12