Sharp XL-70 Service Manual page 29

L803
10µH
+B
L801
10µH
C844
0.0068
R825
82K
C845
100/10
C846
0.1
C847
0.1
C848
R828
R826
39P
1.2K
2.7K
C839
2P
R827
R829
27K
68K
C863
470P
C855
C849
100/10
0.056
+B
B
7
Q861
2SB562 C
6.3V
5V
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
IC804
LA6541D
FOCUS/
TRACKING/
C857
SPIN/SLED
47/16
DRIVER
16 17
+B
R823
1K
R824
27K
13 2.2V 12
2.1V
14 2.1V 11
2.2V
15 4.3V 10
2.1V
16 9
2.1V
2.1V
10
8
17 2.5V
2.1V
9
18 3.4V 7
2.1V
19 0V 6
2.1V
20 2.1V 5
2.1V
21 2.1V 4
2.1V
8
22 2.1V 3
1.7V
23 2.1V 2
0V
24 5V 1
2.1V
IC801
TA2109F
SERVO PRE AMP.
8 9
Figure 29 SCHEMATIC DIAGRAM (6/6)
+B
IC804
LA6541D
2
3
18 19 20 21 22 23 24 25 26 27 28 29
30
C842
47/10
R822
22
4.1V
Q801
3.4V KTA1266 GR
SWITCHING
C843
0.1
+B R80E
82K
R80A
82K
R80C
82K
R80F
82K
R80G
68K
+B
10
– 29 –
CD PWB-A3
C861
0.001 CD_L
L804
2.2µH
A_GND
CD_R
M_GND
M_12V
D_GND
CD_6.2V
+B
SP+
6
SP-
5
SL+
4
SL-
3
PU-IN
2
GND
1
PICKUP UNIT
TR-
TR-
1 1 1
TR+
TR+
2 2
2
FO+
FO+
3
3 3
FO- FO-
4 4 4
GND GND
5 5 5
PD PD
6
6 6
VR VR
R821
7 7 7
150
LD
LD
8 8 8
C C
1 1 1
R80B F F
2 2
2
68K
B B
3
3 3
A A
4
4 4
E E
5
5 5
VREF
1/2V
6
6 6
+5V
+5V
7 7 7
11
XL-70/70C
1 1
M
2 2
M801
CD LID MOTOR
CFW807
1 1
2
2 SW730
CD LID OPEN/CLOSE
OPEN/CLOSE
SWITCH
PWB-A6
1 1
2
2
3 3 TO MAIN PWB
4 4
CNP605
P25 8-H
5 5
6 6
7 7
CD MOTOR PWB-C
+
NM802
SP+
M
6
6
SPINDLE
SP- MOTOR
-
5 5
SL+
+
4 4
SL- NM801
M
3 3
SLED
PU-IN
-
MOTOR
2 2
GND
1 1
NSW801
PICKUP IN
TR-
TR+
FO+
FO-
ACTUATOR
GH6C605B3A1
1/2VCC
+
-
C
+
-
F
+
-
B
+
A -
+
-
E
GND
MON
LD
VCC
12