Read Sharp MX-M623U / MX-M753U (serv.man8) Service Manual online
MX-M753 CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図
2 – 97
5VN
3.3V
5VN
5VN
3.3V
5VN
5VN
5VN
3.3V
5VN
5VN
5VN
24V1
5VN
3.3V
5VN
5VN
5VN
PSPS
<3>
TM2a
<3>
TM2b
<3>
PSPS#
<10>
CRUM_SCL
<11>
CRUM_SCL#
<3>
DGS
<3>
TM1a
<3>
TM1b
<3>
DGS#
<10>
TM1a#
<11>
TM1b#
<11>
TM2a#
<11>
TM2b#
<11>
MFPUS#
<10>
MFPUS
<4>
MPFGS
<4>
MPFGS#
<10>
reserve3_out
<4>
FRS
<3>
WEBM2A
<3>
WEBM2B
<3>
FRS#
<10>
WEBM1A#
<11>
WEBM1A
<3>
WEBM1B
<3>
WEBM2A#
<11>
WEBM1B#
<11>
WEBM2B#
<11>
(TNCRU_T)
<4>
(TNCRU_T#)
<11>
/TXD_FIN
<1>
RXD_FIN
<18>
DTR_FIN
<4>
/DSR_FIN
<18>
/TXD_LCC
<1>
RXD_LCC
<18>
DTR_LCC
<4>
/DSR_LCC
<18>
TRC_LCC
<4>
/RES_LCC
<4>
/RES_FIN
<4>
/MMCLK
<4>
MM_D
<4>
/FUMCLK
<3>
FUM_D
<3>
/DVMCLK
<3>
DVM_D
<3>
DM_D
<3>
/DMCLK
<3>
VFM-BKR_PWM
<3>
T1PUS
<4>
T1PUS#
<10>
T2PUS#
<10>
T2PUS
<4>
M1PUS
<4>
M2PUS
<4>
M1PUS#
<10>
M2PUS#
<10>
/TXD_DBG
<1>
RXD_DBG
<18>
DSR_DBG
<3>
IC33
TD62503FG
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
G
8
NC
9
1C
16
2C
15
3C
14
4C
13
5C
12
6C
11
7C
10
IC34
TC74VHCT244AFT
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
B
4
4
1
2
3
4
8
7
6
5
TP280
TP233
TP392
TP392
D61
KDS123E(NM)
D61
KDS123E(NM)
2
1
3
IC19
TC74VHCT244AFT
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
C
218
100pF(
N
M
)
TP64
BR5
4.7k
4.7k
1
2
3
4
8
7
6
5
TP281
TP489
TP489
TP113
BR60
4.7kJ
4.7kJ
1
2
3
4
8
7
6
5
TP1011
TP572
TP748
TP282
TP447
TP447
TP789
TP566
TP288
R
174
10kJ
R
1
68
4.
7kJ
R
1
68
4.
7kJ
TP553
C141
0.1uF
R
171
10kJ
R
1
38
4.
7kJ
R
1
38
4.
7kJ
R453
1kJ(NM)
TP293
R
1
56
4.
7kJ
R
1
56
4.
7kJ
IC16
TC74VHCT244AFT
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
TP420
TP420
C
7
4
1
00pF
C
7
4
1
00pF
R164
1kJ
R164
1kJ
TP229
R
170
10kJ
D103
KDS123E(NM)
2
1
3
TP46
D49
KDS123E(NM)
D49
KDS123E(NM)
2
1
3
R
3
18
4.
7kJ
C
217
100pF
TP266
TP267
TP212
TP458
TP458
TP231
TP1001
R3
2
3
1
0
k
J
TP237
R
4
58
4.
7kJ(
N
M
)
TP586
TP289
TP251
TP59
TP565
TP253
TP563
TP563
TP485
TP485
TP485
TP255
R
4
57
4.
7kJ
TP296
BR21
10kJ x4
10kJ x4
1
2
3
4
8
7
6
5
R128
1kJ
R128
1kJ
D52
KDS123E(NM)
D52
KDS123E(NM)
2
1
3
C83
0.1uF
TP775
TP292
TP72
TP587
R452
1kJ
R2
7
9
10kJ
TP45
TP567
R1
9
61
0
k
J
D59
KDS123E(NM)
D59
KDS123E(NM)
2
1
3
TP117
R169
1kJ
R169
1kJ
IC29
TC74VHCT244AFT
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
C97
0.1uF
TP533
C4
9
100pF
C4
9
100pF
C164
0.1uF
R139
1kJ
R139
1kJ
TP88
TP996
TP230
R
180
10kJ
TP252
TP439
TP439
R3
3
8
1
0
k
J
TP1013
C
5
2
1
00pF
C
5
2
1
00pF
R
1
24
4.
7kJ
R
1
24
4.
7kJ
TP247
R3
2
5
1
0
k
J
D104
KDS123E(NM)
2
1
3
C
6
6
1
00pF
C
6
6
1
00pF
TP54
TP262
A
B
C
4
3
2
1
PCU PWB (Buffer 2 & Driver 1)
A
B
C
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