Read Sony DPP-EX5 (serv.man2) Service Manual online
5-3
DPP-EX5 V2
IC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
DUAL MOTOR DRIVER
—TOP VIEW—
GND
GND
INPUTS
DEC A, DEC B,
DEC C, DEC D
ENA A, ENA B,
ENA C, ENA D
PHA A, PHA B,
PHA C, PHA D
OUTPUTS
OUT A, OUT B,
OUT C, OUT D,
OUT A
*
, OUT B
*
,
OUT C
*
, OUT D
*
OTHERS
CR A, CR B,
CR C, CR D
R
S
A, R
S
B,
R
S
C, R
S
D
V
MM
A, V
MM
B,
V
MM
C, V
MM
D
V
REF
A, V
REF
B,
V
REF
C, V
REF
D
: DECAY
: ENABLE
: PHASE
: OUTPUT
: C AND R CONNECTION
: RS CONNECTION
: POWER SUPPLY VOLTAGE FOR MOTOR
: VOLTAGE REFERENCE
1
2
3
4
5
6
7
8
9
10
PIN
NO.
O
—
O
—
—
I
I
I
—
—
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
PIN
NO.
PIN
NO.
PIN
NO.
I/O
SIGNAL
I/O
SIGNAL
I/O
SIGNAL
I/O
SIGNAL
—
—
I
I
I
—
—
O
—
O
O
—
O
—
—
I
I
I
—
—
—
—
I
I
I
—
—
O
—
O
OUT B
*
R
S
B
OUT B
V
MM
B
V
REF
B
PHA B
ENAB
DEC B
CR B
V
CC
V
CC
CR C
DEC C
ENA C
PHA C
V
REF
C
V
MM
C
OUT C
R
S
C
OUT C
*
OUT D
*
R
S
D
OUT D
V
MM
D
V
REF
D
PHA D
ENA D
DEC D
CR D
NC
NC
CR A
DEC A
ENA A
PHA A
V
REF
A
V
MM
A
OUT A
R
S
A
OUT A
*
ENA A, ENA B,
ENA C, ENA D
0
0
1
PHA A, PHA B,
PHA C, PHA D
0
1
x
OUT A, OUT B,
OUT C, OUT D
0
1
OFF
OUT A
*
, OUT B
*
,
OUT C
*
, OUT D
*
1
0
OFF
0
1
x
: LOW LEVEL
: HIGH LEVEL
: DON’T CARE
OUT A
OUT A
*
V
MM
A
V
MM
B
OUT B
*
OUT B
38
40
37
4
1
3
+
_
BLANKING
ONE SHOT
BLANKING
ONE SHOT
CR A
V
REF
A
R
S
A
32
36
39
R
S
B
V
REF
B
2
5
CR B
9
+
_
CURRENT
SENSOR
CURRENT
SENSOR
GATE CIRCUIT
GATE CIRCUIT
OUT C
OUT C
*
V
MM
C
18
20
17
V
MM
D
OUT D
*
OUT D
24
21
23
+
_
BLANKING
ONE SHOT
BLANKING
ONE SHOT
CR C
V
REF
C
R
S
C
12
16
19
R
S
D
V
REF
D
22
25
CR D
29
+
_
CURRENT
SENSOR
CURRENT
SENSOR
GATE CIRCUIT
GATE CIRCUIT
ENA B
DEC B
PHA B
14
13
15
ENA C
DEC C
PHA C
14
13
15
TEMPERATURE
SENSOR
130
d
C 150
d
C
ENA A
DEC A
PHA A
34
33
35
ENA D
DEC D
PHA D
27
28
26
GND
GND
STEP-DOWN SWITCHING REGULATOR
1 2
3 4
5
1 : V
IN
2 : SW
OUT
3 : GND
4 : V
OS
5 : ON/OFF
ON/OFF
SOFT
START
LACH
&
DRIVER
RESET
V
REF
OSCILLATOR
OVER CURRENT
PROTECTION
OVER HEAT
PROTECTION
VIN
ON/OFF
1
5
PREG
+
_
+
_
COMPARATOR
ERROR
AMPLIFIER
SW
OUT
2
V
OS
GND
4
3
MTD2009J-4072 (SHINDENGEN)
SI-8050JD-TP (SANKEN)
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