Sanyo DVD-1500A, Руководство по обслуживанию

Страница: 71 / 93

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