Sharp CD-CH1500 Service Manual page 27

CONSTANT
VOLTAGE
Q3
2SD2012
L2
3.3V
0.82µH
8
22 L7
0.82µH
0
C27
0.0047
C30
47/10
R31
10K
C32
0.022
C33
0.022
R41
3.3K
RF
C34
22P
1.7V
1.7V
Q1
2SC1740 R
+B
7
C97 100P
C98 100P
C99
100P
C93 100P
C94 100P
C95 100P
C96 100P
C58 100P
C59 100P
C60
100P
R75
R76
R38
1K
0.3V
4V
Q5
KRA102 M
4V
SWITCHING
C38
10/50
R45
8.2K
TP14
FE
R46
1.2K
R43
820
0.7V
4V
13 GVSW 12
SBAD
0V
1.7V
14 VRO TEO 11
R42
1.7V
1.7V
FEO
15 TEN 10
56K
1.7V 1.7V
10
16 FEN 9
TEB
C40 0.8V 0V
RFRP 8
17 SEL
0.1(ML)
1.7V
2.7V
RFIS
9
18 LDO 7
C36 0V
1.7V
RFGO
19 6
MDI
27P
1.7V
C41 1.2V
20 RFGC TNI 5
0.1(ML)
1.7V
2.4V
AGCI 4
21 8
TPI
1.1V 1.7V
R35
22 RFO 3
FPI
1.7V 1.7V
1K
23 RFN 2
FNI
0V
0V
24 GND 1
VCC
R36
2.2K
IC6
TA2147F
SERVO PRE
R37
AMP.
33K
8
Figure 27 SCHEMATIC DIAGRAM (8/11)
FW2
GND(D)
1
1
CANA_A
2
CANA_B
3
CANA_C
4
CANA_D
5
CANA_E
6
CANB_A
7
CANB_B
8
8
CAM SWITCH PWB-G
FW3
1
GND(D)
1
TRAY_A
2
TRAY_B
3
TRAY_C
4
4
10K
10K
R78
R77
8.2K 8.2K
+B
SLED DRIVER
C45 C48
470/10
100/10
+B
C46
0.022
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
LEVEL SHIFT
LEVEL
SHIFT LEVEL LEVEL
IC5
SHIFT LEVEL
SHIFT
LEVEL SHIFT
2
1 2 3 4 8
5 6 7 9 10 11 12 13
3
R71
10K
R72
10K
TE
R44
68K
LASER
DRIVER
Q4
KTA1266 GR
2.7V
R48
10
+B
9 10
– 27 –
TRAY SWITCH
PWB-F
SWB104 MODE 1
SWB105 MODE 2
SWB106 MODE 3
SWB107 MODE 4
SWB108 MODE 5
SWB109 TRAY 1
SWB110 TRAY 2
SWB101
DISC DETECT 1
SWB102
DISC DETECT 2
SWB103
DISC DETECT 3
IC5
BA5939S
FOCUS/
TRACKING/
SPIN/
C49
0.1
1
2
3
4
C50
0.1
SHIFT
SP+
6
SP–
5
SL+
4
SL–
14
15 16
3
PU-IN
2
GND
1
R73
8.2K
R74
8.2K
TR–
TR–
1 1 1 1
TR+
TR+
2 2 2 2
FO+
FO+
3 3 3 3
FO–
FO–
4 4 4
4
GND GND
5
5 5 5
PD
PD
6 6 6
6
VR VR
7 7 7 7
LD
LD
8 8 8 8
C67
0.001
R51 R53
68K
68K
C C
1 1 1
1
F F
R54 47K
2 2 2
2
R55 68K B B
3 3 3
3
R56 68K A A
4
4 4 4
R57 47K E E
5
5 5 5
1/2V
VREF
6
6 6 6
+5V +5V
7 7 7 7
11
CD-CH1500
– MOB1
1
M
MAIN CAM
2
+ MOTOR
3
–
4 MOB2
M
TRAY MOTOR
+
+
NM1
SP+
M
SPINDLE
6 6 6
SP–
MOTOR
–
5 5 5
SL+
+
4 NM2
4 4
SL–
M
SLED
3 3 3
PU-IN MOTOR
–
2 2 2
GND
1 1 1 NSW1
PICKUP IN
CD MOTOR
PWB-E
TR+
FO+
FO–
TR–
ACTUATOR
LTOH41M1
1/2VCC
C
+
–
F
+
–
B
+
–
A
+
–
E
+
–
GND
MON
LD
VCC
PICKUP UNIT
12