Circuit diagram

1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
A B C D E F G DP
D1
D2
D3
D4
LED_C
A B C D E F G DP
D1
D2
D3
D4
LED_V
Q8
1815
Q7
1815
Q6
1815
Q5
1815
Q12
1815
Q11
1815
Q10
1815
Q9
1815
a b c f d e g dp
R39
100
R40
100
R41
100
R42
100
R43
100
R44
100
R45
100
R46
100
a b c f d e g dp
R36
3.3K
R37
3.3K
R35
3.3K
R38
3.3K
R49
3.3K
R50
3.3K
R47
3.3K
R51
3.3K
P0 P1 P2 P5P3 P4
D3
4148
D4
4148
D5
4148
D6
4148
D7
4148
D8
4148
S1
SW-SPST
S2
SW-SPST
S3
SW-SPST
S4
SW-SPST
S5
SW-SPST
S6
SW-SPST
LED4 LED5 LED6 LED7 LED8 LED9 LED2
a b c f d e g dp
R48
3.3K
Q13
1815
LED_COM BUS
1
2
3
4
5
6
CON4
C35
22uF
VCC
1
CH0
2
CH1
3
CH2
4
CH3
5
COM
6
SHDN
7
Vref
8
DCLK
16
CS
15
DIN
14
BUSY
13
DOUT
12
MODE
11
GND
10
VCC
9
U8
ADS7841P
+5VA
+5VA
C38
104
C29
104
R20
510
U7
TLV431B
+5VA
C37
22uF/25V
+5V
C28
104
-5V
R4
430 1%
R12
10K 1%
R16
100 1%
R7 22K 1%
D1
4148
D2
4148
C26 104
C25
474
R11 470 1%
R14 4.7K 1%
R15 10K 1%
R1347K
R17 4.7K
3
2
1
84
U1A
LM358
C4
104
5
6
7
U1B
LM358
C27
104
+5VA
-5V
+5VA
C22
104
3
2
6
74
U3
OP07
-5V
C20
103(MONO)
R1
33K 1%
+5VA
R19
33K
C33
104
C34
22uF
R18
100
C3
22uF
C1
104
-5V
C6
104
C2
104
+5V
T_S
-5V
R10 4.7K 1%
R21
10.5K 1%
R22
4.7K 1%
VR6
1K
C36
224
C8
104
+5VA
Vref
L1
3.3uH
Control
C_S+
V_S
R6
430
AGND
V_C
C_C
M1 M2 M3 M4 M5 M6 M7 M8
M9
L2
3.3uH
3V_SW
C_S-
R3
10K 1%
R2 2.1K 1%
R5
22K 1%
25V
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
CON3 12X2
D1A
D2A
D3A
D4A D4B
D3B
D2B
D1B
D2A
P3
D1A
KEY_COM
S1 S2
KEY_COM
S3 S4 S5 S6
P1
D4B
D4A
P6
P0 D3B
D1B
P5
P4
D2B
D3A
P2
ON_OFF
+5V
P7
MANSON ENGINEERIAL INDUSTRIAL LTD.
SHEET 1 OF 1
REVISION: 1.2 DATE: 2011-07-01
TITLE:
DRAWN BY: CHECK BY: APPROVED BY:
DWG NO: SSP-7080 control schematic diagram
C39
104
3
2
6
47
U2
OP27
8 1
1%
VR4 1K
VR5 200
VR3
10K
C23
104
C19
104
C15
104
C17 104
C18
10uF/16V
USB+
+5VA
PD3
1
PD4
2
GND
3
VCC
4
GND
5
PB6
7
PB7
8
VCC
6
PD5
9
PD6
10
PD7
11
PB0
12
PB1
13
PB2
14
PB3
15
PB4
16
PB5
17
AVCC
18
ADC6
19
AREF
20
GND
21
ADC7
22
PC0
23
PC1
24
PC2
25
PC3
26
PC4
27
PC5
28
PC6
29
PD0
30
PD1
31
PD2
32
U9
ATMEGA48
1
2
3
4
5
6
CON2
Download Interface
+5V
+5V
RESET
R52 10K
C24
104
1
23
U10
HT7044A
USB+
P0 P1 P2
P3P4
P5P6P7
PD BUS
M1
M2
M3
M4
M5
M8
M7
M9
M6
LED SEG BUS
+5V
R53
10K
KEY_COM
CS
C13
104
T_S
OVP_SET
3
2
6
74
U4
OP07
-5V
C16104
C7
104
G
13
RCK
12
SER
14
SRCLR
10
SRCK
11
QA
15
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
QH1
9
U11
MC74HC595A
CLK
DIN
DOUT
CLK
3V_SW
R27
10K
R28
10K
A1
B1
X0
12
X1
14
X2
15
X3
11
Y0
1
Y1
5
Y2
2
Y3
4
INH
6
A
10
B
9
X
13
Y
3
U6
MC74HC4052
R23
2K 1%
R24
3K 1%
DOUT
RESET
DIN
LED_COM
LED_COM
+5VA
AGND
OVP_SET
C14
104
2.5V
2.5V
R26
10K
R9
7.5K
1
2
3
4
5
6
7
8
9
10
11
CON1
+5VA
C40
104
VOL-A
VOL
CURR-A
CURR
P0 P1 P2 P5P3 P4 P6 P7
RLY1
RELAY
R57
1K
close
open
+5VA
S2
R58
47
R59
1K
OUT
IN
1%
D9 4148
1
2
3
4
CON5
+5VA
VR9
10K
R56
10K 1%
OVP_SET
CS
ON_OFF
R54
1.5K
LED1
X0
12
X1
14
X2
15
X3
11
Y0
1
Y1
5
Y2
2
Y3
4
INH
6
A
10
B
9
X
13
Y
3
U12 MC74HC4052
R55 10K
C9
104
C10
104
C11
104
C5
1uF
CV 16V 27V 36V ALM V OVP CC
D10 4148
C12
474
R25
8.2K
D12
4148
D11 220K
slave
mas
R8
680
LED10
slave
C31
10uF
C30 104
1
2
CON6
USB-
USB+
C32
102
C41
102
C42
102
C43
102
C44
102
C45
102
C46
102
C47
102
C48
101
C49
102
C50
102
C51
102
C60
102
C61
102
C62
102
C56
102
C57
102
C58
102
C59
102
P0 P1 P2 P3 P4 P5 P6 P7
KEY_COM
PB6 PB7 PB0 M1 M2 M3 M4 M5 M6 M7
PB6
PB7
PB0
C63
102
C64
102
M8 M9
A
B
C
D
E
F
G
H
I
C52
101
C53
101
CLK CS
C54
101
C55
101
IN OUT
KEY-COM
VOL
CURR
ON_OFF
LED3
PD3/OC2
1
PD4/TO
2
GND
3
VCC
4
GND
5
VCC
6
PB6
7
PB7
8
PD5/OC0B
9
PD6/OC0A
10
PD7
11
PB0
12
PB1/OC1A
13
PB2/2C1B
14
PB3/MOSI
15
PB4/MISO
16
CK/PBS
17
AVCC
18
ADC6
19
AREF
20
GND
21
ADC7
22
ADC0/PC0
23
ADC1/PC1
24
PC2
25
PC3
26
PC4
27
PC5
28
RESET
29
PD0
30
PD1
31
PD2
32
U16
ATMEGA48
C74 104
C81
104
+5VA
A
B
C
VR7
A
B
C
VR1
C77 104
C78 104
C79 104
C76 104
+5VA
+
C75
10uF/25V
R76
10K
C80
104
1
23
U17
HT7033A
+5VA
1
2
3
4
5
6
CON7
Download Interface
+5VA
A1B1
A1
B1
R75 10K
R74 10K
R73 10K
R72 10K
Y1
1
Y0
2
Z1
3
Z
4
Z0
5
INH
6
VEE
7
VSS
8
VDD
16
Y
15
X
14
X1
13
X0
12
A
11
B
10
C
9
U15
CD4053
R70 10K
R71 10K
C72
4.7uF
C71
4.7uF
CURR
VOL
Vref
C70
4.7uF
C73
4.7uF
+5VA
1
2
3
4
5
6
CON4A
+5VA
KEY_COM
VOL
Vref
CURR
Output Control
9800-7080-0000
1
2
CON8
XPWANG