Sharp XL-3700 Service Manual - Page 24

Schematic Diagram 3/8

Page 24 highlights

C823 C822 0.1 100/10 XL-3600 XL-3700/C A CD PWB-A3 CD PICK-UP UNIT (308) B HPC-3LX LD VCC MON C2A C3A GND +5V +B C801 0.022 C802 47/16 A3.3V A_3.3V +B R819 33K C C807 100/10 E R802 82K R803 82K C806 C812 100/10 8 C A B F 1/2VCC GH6C605B3A1 C4A 1/2V VR1A PO+ TR- TR+ 1 2 E3 C4 A5 B6 C F 7 8 GND 9 LD 10 VR 11 PD 12 FO+ 13 TR- 14 TR+ 15 FO- 16 FFC 1 VREF 2 +5V 3 E 4 C 5 A 6 B C 7 8 9 F GND 10 LD 11 VR 12 PD 13 FO+ 14 TR- 15 TR+ 16 FO- R804 47K R805 82K R806 82K R801 47K L805 2.2µH C815 0.022 Q801 KTA1266 GR R809 10 C805 100/10 R812 47K 0.6V 0.022 3.3V 1 VCC 1.6V 2 FNI 1.6V 3 FPI 1.6V 4 TPI 1.6V 5 TNI 0V 6 MDI 2.6V 7 LDO 0V 8 SEL 1.6V 1.6V 9 TEBC 10 TEN 1.6V 11 TEO 12 RFDC C813 1.5P 0V GND 24 RFN 23 1.6V 1.1V R818 10K RFO 22 2.3V AGCI 21 RFGC RFGO 20 1.2V C810 0.1 19 1.6V R816 100 9 RAS RFRP FEN 18 17 0.7V 16 1.6V C811 0.1 FEO 1.6V 15 1.6V RFGO R817 10 47K VRO 14 GVSW 2.0V 13 R856 1K IC802 TA2157F C867 0.1 HEAD AMP. REDC FEO R820 10K C817 22P (CH) R821 8.2K C818 0.1 VREF C819 100/10 FO- CNW801 CNP801 ACTUATOR C814 0.0068 D R815 820 +B 3 R807 2.2K 2 +B +B 28 27 26 25 24 23 22 21 20 19 18 17 16 15 IC803 MM1469PH FOCUS/TRACKING/ SPIN/SLED DRIVER GND V04- V04+ VIN4 VG4 BIAS VCC VCC VG3 VIN3 VO3+ V03- PO1+ PO1- C803 330/10 C804 0.022 VO1- VO1+ VIN1 VG1 TRB REG MUTE GND VG2 VIN2 V02+ V02- GND OPO C816 0.022 E CD MOTOR PWB-C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R808 2.2K R810 2.2K CNP703A + M M701 SPINDLE MOTOR - + SP+ SP- 6 6 SP+ 5 5 4 4 CNW802 6 SP+ 5 SP- 4 SL+ M M702 SLED MOTOR SW702 - SL- PU-IN 3 2 GND 1 3 2 1 3 SL- 2 PU-IN 1 GND +B PICKUP IN R811 4.7 C808 100/10 C809 0.022 7.3V 3.3V Q802 2SB562 C F +B C871 0.022 G C820 100/10 H • NOTES ON SCHEMATIC DIAGRAM can be found on page 17. • The numbers 1 to 17 are waveform numbers shown in page 18. 1 2 3 4 5 6 Figure 24 SCHEMATIC DIAGRAM (3/8) - 24 -

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  • 2
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  • 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
  • 33
  • 34
  • 35
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– 24 –
XL-3600
XL-3700/C
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• The numbers
1
to
17
are waveform numbers shown in page 18.
• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.
Figure 24 SCHEMATIC DIAGRAM (3/8)
1/2V
+5V
+5V
A3.3V
3.3V
1.6V
0V
1.1V
2.3V
1.6V
0.7V
1.2V
1.6V
1.6V
1.6V
2.0V
1.6V
1.6V
1.6V
1.6V
1.6V
0V
0V
2.6V
1.6V
1.6V
0.6V
7.3V
3.3V
FOCUS/TRACKING/
SPIN/SLED DRIVER
HEAD
AMP.
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
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
GND
FO+
FO–
TR+
TR–
VR
E
A
B
F
C
VREF
+B
+B
+B
+B
+B
+B
VCC
FNI
FPI
TPI
TNI
MDI
LDO
SEL
TEBC
TEN
TEO
RFDC
GND
RFN
RFO
AGCI
RFGC
RFGO
FEO
VRO
RAS
FEN
RFRP
FEO
VREF
RFGO
+B
LD
PD
GVSW
REDC
A_3.3V
HPC-3LX
C
FO+
1/2VCC
C
F
B
A
E
GND
MON
LD
VCC
TR–
ACTUATOR
GH6C605B3A1
TR+
FO–
F
CD
PICK-UP UNIT (308)
C
B
TR–
+
+
+
+
+
TR+
PO+
FO–
GND
A
E
LD
VR
PD
C
FFC
VIN1
VG1
TRB
REG
MUTE
GND
GND
GND
VG2
VIN2
V02+
V02–
V03–
OPO
PO1–
PO1+
VO3+
VIN3
VG3
VCC
VCC
BIAS
VG4
VIN4
V04+
V04–
VO1–
VO1+
2
5
7
3
15
13
1
8
9
6
10
11
4
14
12
16
2
5
7
3
15
13
1
8
9
6
10
11
4
14
12
16
SP+
SP–
SL+
SL–
PU-IN
GND
5
1
4
3
2
6
4
5
2
6
1
4
3
CD
MOTOR PWB-C
GND
PU-IN
SL–
SP+
SP–
SP+
PICKUP IN
SLED
MOTOR
SPINDLE
MOTOR
+
+
M
4
6
M
2
M
3
5
1
CD PWB-A3
C3A
C2A
C4A
VR1A
82K
82K
47K
82K
82K
47K
47/16
0.022
100/10
0.022
100/10
33K
47K
0.1
10K
0.1
100
1.5P
10K
22P
(CH)
8.2K
0.1
0.1
100/10
100/10
0.0068
820
1K
0.1
TA2157F
47K
0.022
2.2
μ
H
KTA1266 GR
100/10
0.022
2SB562 C
4.7
0.022
100/10
2.2K
2.2K
330/10
0.022
MM1469PH
2.2K
0.022
100/10
10
CNW801
CNP801
CNP703A
R803
R802
R804
R805
R806
R801
C802
C801
C807
C806
C812
R819
R817
C811
R820
C810
R816
C813
R818
C817
R821
C818
C823
C822
C819
C814
R815
R856
C867
IC802
R812
C815
L805
Q801
R809
C805
M701
M702
SW702
CNW802
C871
Q802
R811
C809
C808
R808
R810
C803
C804
IC803
R807
C816
C820
2
3
8
9
10