Sharp XL-MP150 Service Manual page 20

XL-MP150
PICKUP UNIT(306)
VREF
16
15
E
14
A
B
13
F
12
C
11
10
9
8
7
6
5
4
3
2
1
TR-
TR+
TR+
FO+
FO+
FO-
PD
TR-
VR
LD
GND
CNP3A
+
M1A
M
SPINDLE
-
MOTOR
+
M2A
M
SLED
-
MOTOR
SW1A
PICKUP-IN
GND
16
LD
15
VREF
14
PD
13
VCC
+B
12
VR
11
E
10
A
9
B
8
F
7
C
6
GND
5
TR+
4
FO-
3
FO+
2
TR-
1
CNP1
36 35 34 33 32 31
1 2
SP+
6
6
SP-
5 5
SL+
4 4
SL-
3
3
PUIN
2 2
GND
1 1
CNP2
(MGND)
Figure 4-5 BLOCK DIAGRAM (5/6)
+B
LASER
DRIVER
Q1
30 29 28 27 26 25 24 23 22 21 20 19
IC2
LA6261
FOCUS/TRACKING/
SPIN/SLED DRIVER
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
+B
Q2
4 – 5
(AGND)
+B +B
+B
AVDD
SLCO
80 79 78 77 76 75 74 73 72
EFMIN
1
TP1
2 RFOUT
LPF
3
4 PHLPF
AIN
5
CIN
6
BIN
7
DIN
8
FEC
9
TP3
RFMON
10
TP2
11 VREF
JITTC
12
MP3 DECODER
EIN
13
FIN
14
TEC
15
TP4
TE
16
TEIN
17
LDD
18
LDS
19
AVSS
20
21 22 23 24 25 26 27 28 29
+B +B
(MO_SPEED)
(MO_B+)
(MO_B-)
(MO_A+)
(MO_A-)
XL
16.934
LC7
PROC