Read Sharp AR-235 (serv.man5) Service Manual online
AR-235/275 CIRCUIT DIAGRAM - 4
C1
12
0.1u
C435
0.1u
C415
0.1u
IC223
74VHCT244
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
IC222
74LCX244
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
C123
0.1u
C1
16
0.1u
C269
0.1u
C122
1000p
C404
0.1u
R1
14
10k
IC220
74LCX244
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
IC204
74VHCT244
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
C300
0.1u
C111
0.1u
C301
0.1u
IC210
74VHCT244
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
IC206
74VHCT244
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
IC104
74L
VX4245FS
VCCA
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
GND
11
GND
12
VCCB
23
GND
13
B8
14
B7
15
B6
16
B5
17
B4
18
B3
19
B2
20
B1
21
G
22
VCCB
24
R1
13
10k
R1
12
10k
IC21
1
74LCX244
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
IC215
74LCX244
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
C342
0.1u
BR192
10JX4
1
8
2
7
3
6
4
5
BR191
10JX4
1
8
2
7
3
6
4
5
BR1
10
10JX4
1
8
2
7
3
6
4
5
R107
10J
R108
NC
BR105
10JX4
1
8
2
7
3
6
4
5
BR104
10JX4
1
8
2
7
3
6
4
5
IC207
74LCX244
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
3.3V
3.3V
5V
3.3V
5V
5V
3.3V
3.3V
3.3V
5V
3.3V
5V
3.3V
DEVID#
DEVID
FW
SELA
SELB
CSSELB#
CSSELA#
FW#
DEVCLK
/PWOFF
SVSTS#
DTR#
R
TS#
DEVCLK#
SVSTS
RT
S
DTR
DEVIDDIR
/CV_COPY#
/PRST
AR
T
/TRANSST
/RESET#
/MMRDY#
/PMRDY#
DEV
DEV#
/PMRDY
/MRESET
/MMRDY
/SCLINE
/PRLINE
SPFRSOL
SPFPSOL
SPFGSOL
SPFCLH
SPFPSOL#
SPFGSOL#
SPFRSOL#
SPFCLH#
TRCLB#
PCL1B#
PCL2#
LUM1B#
PCS2#
PCS1B#
LUM2#
LUM1B
PCL2
LUM2
PCS1B
PCL1B
PCS2
TRCLB
PCL1A
PCL1A#
Y2#
Y1B#
Y1A#
YSPF#
Y2
Y1B
Y1A
YSPF
PCS1A
PCS1A#
/SPFPOUT
SPFOPEN
/SPFCOVER
SPFP
APER
/SPFPOUT#
/SPFCOVER#
SPFOPEN#
SPFP
APER#
SFTHP
SFTHP#
TM#
/TM#
TMDO1
/SPFMODB#
SPFMODB#
SPFMODA#
/SPFMODA#
SPFMODB
SPFMODA
/SPFMODA
/SPFMODB
LED1#
LED2#
LED0#
LED3#
LED3
LED2
LED1
LED0
MIRMODA#
/MIRMODA#
/MIRMODB#
MIRMODB#
MIRMODA
MIRMODB
/MIRMODB
/MIRMODA
TMDO2
/SFTDA#
/SFTDB#
SFTDA#
SFTDB#
SFTDA
SFTDB
/SFTDB
/SFTDA
LUM1A#
TRCLA#
TRCLA
LUM1A
SELA#
SELC#
SELB#
SELB
SELA
SELC
DSR#
SVCMD#
CTS#
CTS
DSR
SVCMD
DSIN0
DSIN3
DSIN2A
DSIN2B
DSIN2A#
DSIN3#
DSIN0#
DSIN2B#
/CV_COPY
/PWOFF#
/BI#
AI#
BI#
/AI#
SELC
/OPCASDB
OPCASDA
OPCASDB
/OPCASDA
CSSELC#
(1-3D)
(1-3D)
(1-2A)
(1-2A)
(1-1D)
(1-2D)
(1-2D)
(1-2D)
(1-3D)
(1-2E,2-3D,3-1B)
(3-1D)
(3-1D) (3-1D)
(3-1D)
(3-2D)
(3-2D) (3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D) (3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-2D)
(3-3D)
(3-3D)
(3-3D)
(3-3D)
(3-3D)
(3-4D,4-3E) (3-4D,4-3E)
(3-4D,4-3E)
(3-4D)
(3-4D)
(3-4D)
(3-4D)
(3-4D)
(3-4D)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4C)
(3-4B)
(3-4B)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(12-3A)
(12-1A) (12-1A)
(12-1A)
(1
1-1D)
(1
1-1D)
(1
1-1D)
(1
1-1D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-1A)
(1
1-1A)
(1
1-1A)
(1
1-1A)
(1
1-1A)
(1
1-1A)
(1
1-1A)
(10-3A)
(6-2A)
(6-2A)
(6-2D)
(6-2D)
(6-2D)
(6-2D)
(12-3D)
(10-1D)
(10-2D)
(12-1D)
(2-3D,3-2B)
(2-3D,3-2B)
(9-4A)
(9-4C)
(9-4A,10-4C,1
1-1D)
(12-3B)
(9-4A)
(3-3D,4-1A)
(3-4D,4-1A)
(3-4D,4-1A)
(1
1-1D)
(1
1-1D)
(1
1-1D)
(12-3E)
(1
1-2D)
(1
1-1A)
(1
1-1A)
(1
1-1A)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-2D)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1
1-1C)
(1-1D)
(1-2D)
(1-2D)
(1
1-1D)
(1
1-1D)
(1
1-1D)
(12-3A)
(12-3A)
(12-1A)
(12-1B)
(3-1D)
(3-1D)
(3-1D)
(3-1D)
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
DRIVER
SECTION
1
4/13
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