Sanyo DVD-1500A Service Manual page 71

IC BLOCK DIAGRAM & DESCRIPTION
IC602 BA6849FP(CD-ROM MOTOR DRIVER)
DRIVER
A3
2
GAIN
A2
4 CONTROL
TL
A1
7
GND
8
HALL AMP
+
H1+
9
-
+
H1-
10
-
+
H2+
11
-
+
H2-
12
-
H3+
+
13
-
H3-
14
Pin No. Name
1 N.C.
2 A
3 Output
3 N.C.
4 A
Output
2
5 N.C.
6 N.C.
7 A
1 Output
8 GND
GND
9 H
1+ Hall signsl input
10 H
Hall signal input
1-
11 H
Hall signal input
2+
12 H Hall signal input
2-
13 H
3+ Hall signal input
14 H
3- Hall signal input
TSD
CURRENT
SENSE AMP
V
CC
+ -
PS
TORQUE
SENSE AMP
+
-
V
CC
D R Q
Q
CK
SHORT BRAKE
Hall bias
Description
RNF
28
N.C.
A
VM1 3
27
N.C.
VM2
26
A
2
N.C.
VCC
25
N.C.
FG
24
A
1
23 PS
EC
22
ECR
21
GND
H
1+
FR
20
H
1-
H
2+
SB
18
H
2-
CNF H
17
3+
H
3
VH
15
Pin No. Name
15 VH Hall vias
16
N.C.
17 C Phase compensation condenser
NF
18 SB Short brake
19 N.C.
20 FR Rotation detection
21 E Output voltage control referrence
CR
22 E Output voltage control
C
23 PS Power save
24 FG FG signal output
25 V Power source
CC
26 V Motor power source 2
M2
27 V Motor power source 1
M1
28 R Resistance(output current detection) connect
NF
- 70 -
R
XF
V 1
M
V 2
M
V
CC
FG
PS
E
C
E
CR
FR
N.C.
SB
C
NF
N.C.
V
H
Description