Read Sharp AR-C170 (serv.man6) Service Manual online
AR-C170M PCU PWB 3 - 6
8
8
7
7
6
6
5
5
D
C
B
A
PCU PWB (SRAM, EEPROM, Flash Memory, Mini-OP Section)
LWR\
CSELSRAM
A3
A13
A1
A5
A12
A13
A14
A9
D10
HWR\
A3
A6
D14
D9
D2
D8
A14
A12
D3
A8
A11
D12
A12
A13
A10
D1
A2
A2
A8
D12
RD\
A2
D4
D11
D15
HWR\
D0
D5
D7
D15
A7
A14
D14
A9
A11
A7
A1
D11
A8
D8
A0
A1
A5
D13
RD\
A9
A11
A7
D10
A15
A5
D9
A15
D6
A4
RD\
A3
A6
A10
A4
D13
A6
A10
A4
DATA_OP7
DATA_OP6
DATA_OP5
DATA_OP4
DATA_OP3
DATA_OP2
DATA_OP1
DATA_OP0
DATA_OP6
DATA_OP5
DATA_OP4
DATA_OP3
DATA_OP2
DATA_OP1
DATA_OP0
+3.3V
+3.3V
+3.3V
+3.3V
+5V
+3.3V
+5V
D[15..0]
<2,4,7>
A[20..0]
<2,4>
HWR\ <2,4,7>
RD\
RD\
<2,4>
LWR\
<2>
CS_EEPROM\
<2>
CS_SRAM\
<2>
RES_FROM\
<2>
RD\
<2,4>
HWR\
<2,4,7>
WP_FROM\
<4>
RY/BY\_FROM
<2>
CS_FROM1\
<2>
KEY6
<1>
KEY4
<1>
WU_PCU\
<1,2>
KEY1
<1>
KEY5
<1>
KEY3
<1>
KEY2
<1>
DATA_OP[7..0]
<4>
VPP_MON\
<4>
Type
3.3V
5.0V
3.3V
5.0V
EXIS
suppo
3.3V-
suppo
3.3V-
OPEN DRAIN
GND-LOOPSW
From
Mini-OP
Mini-OP
Not Mouted ( except : Printer only m
Not Mouted ( except : Printer only model )
Not Mouted ( except : Printer o
Not Mouted ( AR-C170M only )
R
257
47K
J
R
257
47K
J
R44
4.7KJ
R44
4.7KJ
A2
C81
0.1uF
C81
0.1uF
11
10
IC29E
nm_74VHCT14(+5V/GND2)
IC29E
nm_74VHCT14(+5V/GND2)
1
2
IC29A
nm_74VHCT14(+5V/GND2)
IC29A
nm_74VHCT14(+5V/GND2)
C
9
8
n
m_1000pF
C
9
8
n
m_1000pF
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
1G
1
2G
19
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
VCC
20
GND
10
IC30
nm_74VHCT244
IC30
nm_74VHCT244
R
162
nm_4.7K
J
R
162
nm_4.7K
J
1
8
2
7
3
6
4
5
B
R
52
47K
JX
4
B
R
52
47K
JX
4
R95
nm_33J
R95
nm_33J
R48
nm_4.7KJ
R48
nm_4.7KJ
C59
0.1uF
0.1uF
C59
0.1uF
0.1uF
13
12
IC29F
nm_74VHCT14(+5V/GND2)
IC29F
nm_74VHCT14(+5V/GND2)
nm_DAN202U
A14
1
A12
2
A0
10
A1
9
A2
8
A4
6
A5
5
A6
4
A7
3
I/O0
11
I/O1
12
I/O2
13
I/O3
15
I/O4
16
I/O5
17
I/O6
18
I/O7
19
GND
14
CE
20
A10
21
OE
22
A11
23
A9
24
A8
25
A13
26
WE
27
A3
7
VCC
28
IC25
IS61LV256(SOJ)
IC25
IS61LV256(SOJ)
R143
33J
R143
33J
3
4
IC29B
nm_74VHCT14(+5V/GND2)
IC29B
nm_74VHCT14(+5V/GND2)
C
9
3
n
m_1000pF
C
9
3
n
m_1000pF
C102
nm_0.1uF
nm_0.1uF
C102
nm_0.1uF
nm_0.1uF
R
158
nm_4.7K
J
R
158
nm_4.7K
J
R154
nm_1KJ
R154
nm_1KJ
C70
nm_0.1uF
C70
nm_0.1uF
R47
10KJ
R47
10KJ
K
A1
A2
A14
1
A12
2
A0
10
A1
9
A2
8
A4
6
A5
5
A6
4
A7
3
I/O0
11
I/O1
12
I/O2
13
I/O3
15
I/O4
16
I/O5
17
I/O6
18
I/O7
19
GND
14
CE
20
A10
21
OE
22
A11
23
A9
24
A8
25
A13
26
WE
27
A3
7
VCC
28
IC24
IS61LV256(SOJ)
IC24
IS61LV256(SOJ)
R
258
47K
J
R
258
47K
J
5
6
IC29C
nm_74VHCT14(+5V/GND2)
IC29C
nm_74VHCT14(+5V/GND2)
C
9
4
n
m_1000pF
C
9
4
n
m_1000pF
R50
33J
R50
33J
C
9
9
n
m_1000pF
C
9
9
n
m_1000pF
R161
nm_1KJ
R161
nm_1KJ
R46
0J
R46
0J
K
A1
A2
RDY/Busy
1
A12
2
A0
10
A1
9
A2
8
A4
6
A5
5
A6
4
A7
3
I/O0
11
I/O1
12
I/O2
13
I/O3
15
I/O4
16
I/O5
17
I/O6
18
I/O7
19
Vss
14
CE
20
A10
21
OE
22
A11
23
A9
24
A8
25
NC
26
WE
27
A3
7
Vcc
28
IC22
nm_HN58V65AP
IC22
nm_HN58V65AP
9
8
IC29D
nm_74VHCT14(+5V/GND2)
IC29D
nm_74VHCT14(+5V/GND2)
C
9
2
n
m_1000pF
C
9
2
n
m_1000pF
1
8
2
7
3
6
4
5
BR34
nm_1KJX4
BR34
nm_1KJX4
C
100
nm_1000pF
C
100
nm_1000pF
1
8
2
7
3
6
4
5
B
R
33
nm_4.7K
JX
4
B
R
33
nm_4.7K
JX
4
nm_DAN202U
WORD MODE -> BUS = [LOWER TYPE : UPPER BITY]
Q18
Q17
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