Read Sharp UP-3500 (serv.man29) Service Manual online
UP-3500 (V)
CIRCUIT DIAGRAM
– 47 –
EFTC#
RS3_DTR#
RS3_SIN
RS3_CTS#
RS3_RTS#
RS3_RI#
RS3_DCD#
RS3_DSR#
RS3_SOUT
RS4_CTS#
RS4_SOUT
RS4_DCD#
RS4_SIN
RS4_DTR#
RS4_DSR#
RS4_RTS#
RS4_RI#
FPGA_DSR4
FPGA_CTS4
FPGA_SIN4
FPGA_RI4
FPGA_DCD4
EFT_RTS#
EFT_DTR#
EFT_SOUT
FPGA_SOUT4
FPGA_DTR4
FPGA_RTS4
EFT_CTS#
EFT_SIN
EFT_DSR#
EFT_RI#
EFT_DCD#
FPGA_RI3
FPGA_SIN3
FPGA_SOUT3
FPGA_CTS3
FPGA_RTS3
FPGA_DTR3
FPGA_DSR3
FPGA_DCD3
5V
3.3V
EFTC#
EFT_VCC
5V_2
3
2
3.3V
3.3V
3.3V
3.3V
5V
EFT_VCC
3.3V
3.3V
3.3V
GND-FRAME
GND-FRAME
GND-FRAME
GND-FRAME
C131
100pF
C130
100pF
R235
33
C133
0.1uF
R404
(0)
R232
33
IC16
ICL3241ECA-1
28
24
1
2
14
13
12
21
19
18
17
16
15
23
25
26
27
3
9
10
11
20
4
5
6
7
8
22
C1+
C1-
C2+
C2-
T1in
T2in
T3in
R1outB
R1out
R2out
R3out
R4out
R5out
EN#
GND
VCC
V+
V-
T1out
T2out
T3out
R2outB
R1in
R2in
R3in
R4in
R5in
SHDN#
R244
0
C140
100pF
R238
33
+
C123
10uF/50V
1
2
C124
0.1uF
CN13
RS232C CN(D-SUB 9Pin)
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
C127
0.1uF
C122
0.1uF
R246
10K
C142
100pF
R248
10K
R405
(0)
+
C134
10uF/50V
1
2
CN23
RS232C CN(D-SUB 9Pin)
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
C135
0.1uF
R247
0
R395
0 (3216)
1
2
R406
(0)
C128
100pF
R237
33
C132
100pF
R233
33
C129
100pF
R250
0
IC17
ICL3241ECA-1
28
24
1
2
14
13
12
21
19
18
17
16
15
23
25
26
27
3
9
10
11
20
4
5
6
7
8
22
C1+
C1-
C2+
C2-
T1in
T2in
T3in
R1outB
R1out
R2out
R3out
R4out
R5out
EN#
GND
VCC
V+
V-
T1out
T2out
T3out
R2outB
R1in
R2in
R3in
R4in
R5in
SHDN#
IC18
SN74LV157AP
W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SELECT
1A
1B
1Y
2A
2B
2Y
GND
3Y
3B
3A
4Y
4B
4A
STROBE
VCC
C141
100pF
R234
33
R429
0 (3216)
1
2
R421
0 (3216)
1
2
R240
33
C139
100pF
C136
0.1uF
SP1
5
SHORT PIN & SOCKET
1
3
2
R428
0 (3216)
1
2
R413
0
R251
47
K
R249
0
R241
33
C126
0.1uF
C125
0.1uF
C143
100pF
R243
0
C137
0.1uF
R239
33
R242
0
R245
10
K
R236
33
C138
0.1uF
RS232 ch3-4
<RS232 ch3>
FPGA
FPGA
Intersil ICL 3241
<RS232 ch4>
MODIFIED 08,03,27
MODIFIED 08,03,27
modified 07,06,09
MODIFIED 08,03,27
MODIFIED 08,03,27
MODIFIED 08,03,27
MODIFIED 08,03,27
Intersil ICL 3241
1-2 short: 5V (default)
2-3 short: RI#
MODIFIED 07,10,12
MODIFIED 07,10,12
MODIFIED 07,10,12
MODIFIED 07,10,12
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
9/16
RS232C DRIVER (CH3-CH-4)
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