Read Sharp QT-CD50H (serv.man3) Service Manual online
QT-CD50
Figure 12 SCHEMATIC DIAGRAM (4/5)
NOTES ON SCHEMATIC DIAGRAM can be found on page 14.
A
B
C
D
E
F
G
H
1
2
3
4
5
6
– 12 –
FE_BIAS
CD SERVO PWB-A
SERVO AMP.
/SPIN/SLIDE DRIVER
FOCUS/TRACKING
TRK+
TRK–
FCS–
TRK–
FCS–
FCS+
PD
VR
LD
GND
F
C
B
A
D
E
VCC
VC
L. SW
L. SW
L. SW
SL–
SL+
SP–
SP+
1
6
SL_P
IA_O
SL_M
SL_O
ISET
VCC
CLK
DATA
XLT
XRST
SENS
PHD
LD
RF_M
RF_1
RF_0
C8
CP
CC1
FOK
CC2
VC
TDFCT
TZC
ATSC
TEI
LPF1
TEO
VEE
EI
E
F
C.OUT
TA_
FSET
TG2
TGU
SRCH
FE_M
FE_O
FLB
FGD
FDFCT
FE1
FE0
MUTE
VREG-OUT
GND-2
IN2-2
IN2-1
GND-1
IN1-2
IN1-1
OP-OUT
OUT2-1
OUT2-2
VREG-8
OUT1-2
OUT1-1
GND-3
OUT4-1
OUT4-2
IN4-1
IN4-2
VREF-IN
VCC-2
VCC-1
IN3-2
IN3-1
OUT3-2
OUT3-1
OP-IN1
OP-IN2
+B
+B
10/10
C129
4
C
0.022
C119
0.01
C108
1K
R108
510K
R120
C
18K
R127
0.1
C136
0.047
C135
470/16
C169
220/10
C137
0.04
C179
5.6K
R126
0.01
C175
2P
C104
12K
R105
8.2
R12
82
R1
220K
R123
0.033
C107
1
1
2
CNP101
FW101
8
7
6
5
7
6
5
4
3
3
9
10
16
16
1
16
15
14
13
12
11
6
5
4
3
2
CNS103
1
3.3/50
C128
15K
R122
330K
R121
0.0047
C118
330K
R113
470K
R112
0.047
C115
0.001
C116
100/10
C117
4.7/50
C124
27K
R115
3.9K
R116
0.1
C121
0.1
C120
0.1
C122
680K
R117
150K
R118
0.033
C125
82K
R119
4.7K
R107
51K
R103
10
R102
100/10
C101
SS9012 H
Q101
10K
R104
Q102
SS9012 H
0.001
C102
50K(B)
VR101
R176 47K
R177 47K
R178 47K
R179 47K
0.01
C112
0.01
C111
150K
R111
100K
R109
TP3
0.022
C113
0.1
C114
0.033
C109
0.01
C105
12P
C103
10K
R106
CXA1782BQ
IC101
36 35
PHD1
PHD2
36 35
34 33 32 31 30 29
25
26
27
28
8
12
11
10
7
6
5
4
3
2
1
48
47
46
45
44
43
42
41
40
39
38
37
22
23
24
21
17
18
19
20
16
15
14
13
10
R129
SS9012 H
Q103
C133
0.002
15K
R131
2.2K
R130
KA9258D
IC102
8
14 13 12
10
9
7 6 5 4 3 2 1
21
15 16 17 18 19 20
22 23 24 25 26 27 28
9
11
FOCUS
BALANCE
ERROR
TP6
TP5
150K
R180
150K
R181
TP2
FOCUS
1
2
8
7
6
5
4
3
7
6
5
4
3
16
15
9
10
11
12
13
14
PICKUP UNIT
MD
LD
SHORTLAND
TRACKING
CD MOTOR PWB-J
NOT REPLACEMENT
ITEM
–
+
+
–
SW301
PICKUP IN
6
5
4
3
2
1
M101
SPIN
MOTOR
M
M102
SLIDE
MOTOR
M
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