Samsung SCR-3232, Service Manual

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22
PIN DESCRIPTIONS
PIN DESCRIPTIONS
28 27 26 25 24 23 22 21 20 19 18 17 16
1 3 4 5 6 7 21 20 19 18 17 16 15
GND
LEVEL-SHIFT
LEVEL-SHIFT
10K
TSD
PV
CC1
PV
CC2
PV
CC1/
2
PV
CC1/
2
PV
CC1/
2 PV
CC2/
2 PV
CC2/
2
PV
CC2/
2 PV
CC2/
2
SV
CC
GND
MUTE
PV
CC1/
2
10
10
10 10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
LEVEL-SHIFT
LEVEL-SHIFT
15
2
A3
A2
A1
GND
H1+
H1-
H2+
H2-
H3+
H3-
2
4
6
8
9
10
11
12
13
14
Hall 3
Hall 2
Hall 1
HALL AMP
+
+
+
+
+
FIN
Hall Bias
SHORT BRAKE
VH
CNF
SB
FR
ECR
EC
PS
FG
V
CC
VCC
VM2
VM1
V
M
R
NF
RNF
28
27
26
25
24
23
22
21
20
18
17
15
V
CC
TORQUE
SENSE AMP
PS
V
CC
CURRENT
SENSE AMP
GAIN
CONTROL
TSD
DRIVER
TL
SERVO
SIGNAL
R
D
Q
Q
CK
+
+
PIN NO. PIN NAME FUNCTION
1 N.C. N.C
2 A
3
Output3 for motor
3 N.C. N.C
4 A
2
Output3 for motor
5 N.C. N.C
6 N.C. N.C
7 A
1
Output3 for motor
8 GND GND
9 H
1
+ Hall input Amp1.positive input
10 H
1
- Hall input Amp1.negative input
11 H
2
+ Hall input Amp2.positive input
12 H
2
- Hall input Amp2.negative input
13 H
3
+ Hall input Amp3.positive input
14 H
3
- Hall input Amp3.negative input
15 V
H
Hall Bias
16 N.C. N.C
17 C
NF
Capacitor connection pin for phase compensation
18 SB Short Brake terminal
19 N.C. N.C
20 FR Rotation detect terminal
21 E
CR
Torque control standsrd voltage input terminal
22 E
C
Torque control voltage input terminal
23 PS START/STOP switch
24 FG FG signal output terminal
25 V
CC
Power supply for signal division
26 V
M2
Power supply2 for driver
27 V
M1
Power supply1 for driver
28 R
NF
Power supply for driver division
FIN FIN GND
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Symbol
CH1-O
CH1-O
AMP1-O
AMP1-I(-)
AMP1-I(+)
BIAS
SVCC
GND
MUTE
AMP2-1(+)
AMP2-1(-)
AMP2-O
CH2-O
CH2-O
GND
CH3-O
CH3-O
AMP3-O
AMP3-I(-)
AMP3-I(+)
PVCC2
PVCC1
AMP4-I(+)
AMP4-I(-)
AMP4-O
CH4-O
CH4-O
GND
I/O
O
O
O
I
I
I
-
-
I
I
I
O
O
O
-
O
O
O
I
I
-
-
I
I
O
O
O
-
Description
Drive CH1 Output(-)
Drive CH1 )
OP-AMP CH1 Output
OP-AMP CH1 Input(-)
OP-AMP CH1 Input(+)
Bias Input
Supply Voltage(Signal)
Ground
Mute
OP-AMP CH2 Input(+)
OP-AMP CH2 Input(-)
OP-AMP CH2 Output
Drive CH2 )
Drive CH2 Output(-)
Ground
Drive CH3 Output(-)
Drive CH3 )
OP-AMP CH3 Output
OP-AMP CH3 Input(-)
OP-AMP CH3 Input(+)
Supply Voltage(CH2&CH3)
Supply Voltage(CH1&CH4)
OP-AMP CH4 Input(+)
OP-AMP CH4 Input(-)
OP-AMP CH4 Output
Drive CH4 )
Drive CH4 Output(-)
Ground
•
KA3012D
•
BA6849FP
32