Read Sharp AM-300 (serv.man4) Service Manual online
AM-300DE
6 – 5
5. Scanner & Printer I/F Block (4/10)
A
B
C
D
E
F
G
H
I
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
CNCIS
CNCIS
HLW12S-2C7
AO
GND
(VDD)
GND
VDD
(SEL)
VREF
(GND)
SP
CLK
VLED
BLED_GND
GLED_GND
RLED_GND
NC
TP16
TP17
TP25
TP20
R404
100K
33
R429
C273 0.1U
DG
GLEDR
GLEDG
GLEDB
AG
R396 N.M.
R392
0
R395
270
R398 18P
AG
B
C
E
R457 N.M.
N.M.
R456 N.M.
TP78
Q36
AG
R458
0
CISAIN
L6
MMZ1005Y102C
C270 33P
C287
0.1U(1608)
DG
DG
CISLEDV
C269 10P
CISSPO
CISCLKO
CISVDD
DG
R406 N.M.
R403
0
(1608)
B
C
E
Q35 N.M.
AG
R455
0
R454 N.M.
C268 0.1U
CISVDD
AG
DG
R412 100
R413
N.M.
(1608)
C267
47U/16V
R411
270
CISVDD
R401 0
(1608)
R402
N.M.
(1608)
R400
N.M.
(1608)
AG
DG
CISVDD
R461
N.M.
(1608)
R462
N.M.
(1608)
DG
AG
CISVDD
C264 0.1U
C263
220U/25V
R390
N.M.
(1608)
TP21
DG
AG
+5V
+3.3V
+3.3VR
R388
MMZ1608Y102B
R385
N.M.
(1608)
R387
N.M.
(1608)
B
C
E
GLEDG
GLEDB
Q29 2SC2412K
Q30 2SC2412K
B
C
E
DG
DG
DG
DG
1K
R436
R409 4.7K
R394 4.7K
R438 1K
R437 10K
R439 10K
CISBLED
CISGLED
CISRLED
DG
R445 1K
R417 4.7K
R446 10K
DG
C
E
B
Q31 2SC2412K
R443 N.M.
R442 N.M.
GLEDR
CISLEDV
+24V
B
C
E
Q32
2SA1530A
R444 6.8K
R447 20K
R448 20K
CISVON
DG
DG
Q34
RT1N436C
B
E
C
R449 4.7K
DG
C284
0.1U
(1608)
C283 N.M.
A
K
D24
1SS355
IC36
NJM78L12UA
31
2
VIN
VSS
VOUT
R440
560-F
(1/2W)
R441
560-F
(1/2W)
C285
0.1U
(1608)
DG
12
CISLEDV
F8
KAB5002
201
NA29010
B
C
E
Q33 2SA1530AA
R453 33
C286 0.1U
+5V
R450
150
(3216)
DG
DG
R451 150
(3216)
R452 2K
/ADF_SET_DOC
DG
C 1000P
C114
R142
R140 10K
+3.3V
1
2
DG
/FRSNS
GND
CNFRT
CNFRT
B2B-PH-K-R
GND
2
/ORGSNS
1
CNORG
CNORG
B2B-PH-K-M
DG
R154 10K
R155
100
DG
1000P
C118 1000P
/ADF_READ_DOC
+3.3V
/CIS_HOME
C125 1000P
DG
R159
100
R158 10K
+3.3V
DG
GND
2
/HOME
1
CNHPS
CNHPS
A2001WV2-2P
/MDPAGE
/MCPRDY
/MSCLK
/MDSRDY
MPDATA
/MCMD
100
100 100
100
100
100
R171
R166 R167
R165
R170
R168
18 16 14 12 9 7 5 3
20
10
DG
IC15
74AHCT244PW
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4
1G 2G
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
VCC
GND
2 4 6 8 11 13 15 17
1 19
+5V
C127 0.1U
DG
R172 4.7K
DG
/DSRDY
/CPRDY
PDATA
/SCLK
/CMD
/DPAGE
/MPCURES
DG
B
E
C
Q8
RT1N436C
+3.3V
R162 1.5K
PCURESET
CNSCM
CNSCM
B4B-PH-K-S
A
B
/A
/B
1
2
3
4
MG
C121
4700P(1608)
C119
4700P(1608)
C122
4700P(1608)
C120
4700P(1608)
/SCNMTA
SCNMTB
/SCNMTB
SCNMTA
A
K
A
K
A
K
A
K
D10
D7
D8
N.M.
N.M.
N.M.
N.M.
D9
MG
+24V
MG
C124 100U/50V
C123
N.M.
(1608)
12
F3
KAB3202
202
NA29
MG
R156
0.47
(1W)
R146
0.47
(1W)
MG
3
5
7
8
10
12
19
24
2 13
TAB
VmmA
Out1
RsA
Out2
Out3
RsB
Out4
VmmB
VsB
VsA
TAB
MTD2007F
N.C.
N.C.
N.C.
LG
N.C.
N.C.
N.C.
6
4
1
15
16 17 18
20
21
22
23
25
26
27
28
14
11
9
Vcc
PHASEB I0B I1B
VrefB
CR
VrefA
I1A
I0A
PHASEA
Vcc
IC12
+5V
VLED
B
E
C
Q7
RT1P141C
DG
+5V
C117 0.1U
TP28
C116 4700P
R153 13K
+5V
DG
TP26
R149
N.M.
R150
N.M.
R151
N.M.
R148
N.M.
R147
N.M.
R145
N.M.
18 16 14 12 9 7 5 3
20
10
DG
+5V
C115 N.M.
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
VCC
GND
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4
1G 2G
N.M.
IC13
2 4 6 8 11 13 15 17
1 19
SCAN_PH1 SCAN_I01 SCAN_I11
SCAN_I12
LEDON
SCAN_PH2 SCAN_I02
DG
DG
RT1N436C
Q4
B
E
C
DG
DG
R137 4.7K
TP29
TP27
R144 3.3K
R143 10K
DG
B
E
C
Q6
RT1N436C
DG
R152 4.7K
B
E
C
Q5
R157 4.7K
RTT1N436C
DG
DG
R139 3.9K
R141 4.7K
DG
+5V
CRNT1
CRNT0
/STS /SYNC /VSYNC
CISCLKO
CISSPO
DG
+3.3V
R169
100
R422
150
C126 1U
R160
100
R161
100
R421
150
18 16 14 12 9 7 5 3
20
10
IC14
74LV244A
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4
1G 2G
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
VCC
GND
2 4 6 8 11 13 15 17
1 19
DG
R163
N.M.
R164
N.M.
R173
N.M.
R420
N.M.
R419
N.M.
/MSTS
/MSYNC
/MVSYNC
CISSP
CISCLK
(1-C3)
(1-C3)
(1-C3)
(1-C3)
(4-H5)
(4-H5)
(1-C6)
(1-B4)
(1-B4)
(1-C3)
(1-A3)
(4-G6) (4-G5)
(6-F4)
(6-B6)(7-B2)(7-B4)(7-D3)
(6-B5)
(1-C5)
(1-C4)
(1-C4)
(1-C4) (1-C4) (1-C4) (1-C4) (1-C4) (1-C4)
(3-F3)
(1-F3)
(4-C1)
(4-C1)
(1-C5)
(1-C5)
(1-C5)
(1-C6)
(1-C6) (1-C6)
(1-C3)
(1-C3)
(1-C3) (1-C3)
(6-B4)(6-G2)(9-A4)
(7-D5) (6-B5) (6-B4) (6-B5) (6-F4) (6-F4)
100
CISVDD
+
R
+
+
+
C
Scanner
&
Printer
I/F
Block
4/10
NOTE:
This
mark
indicates
a
safety-critical
part(s).
Click on the first or last page to see other AM-300 (serv.man4) service manuals if exist.