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Name: Sharp MX-M623U / MX-M753U (serv.man8)
Brand: Sharp
SKU: 58861
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mx-m623u, mx-m753u (serv.man8) service manual

Model: MX-M623U MX-M753U (serv.man8)
Pages: 127
Size: 10.06 MB
Type: PDF
Document: Service Manual
Brand: Sharp
Device: Copying Equipment / CIRCUIT DIAGRAM
File: mx-m623u-mx-m753u-sm8.pdf
Date: 2018-11-20

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MX-M753  CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図  
2 –  108
5VN
5VN
5VN
5VN
5VN
5VN
3.3V
3.3V
3.3V
/WEBEND1#
<6>
/DVCH4
<18>
/WEBEND1
<17>
/WEBEND2
<17>
/DVCH3
<18>
/DVCH3#
<6>
/DVCH2#
<6>
/DVCH1#
<6>
/DVCH2
<18>
/DVCH1
<18>
/DVCH4#
<6>
/WEBEND2#
<6>
(/THPS1#)
<6>
(/THPS1)
<17>
(/POED)
<17>
/MPLD2
<18>
/MPLD2#
<6>
/MPLD1#
<6>
/MPED#
<6>
/MPLD1
<18>
/MPED
<18>
(/POED#)
<6>
/TLS
<17>
/TLSin
<3>
/T2PEDin
<4>
/T1PEDin
<4>
/T2PED
<18>
/T1PED
<18>
reserve4_in
<18>
reserve4_in#
<4>
DM_LD
<17>
DM_LD#
<3>
DVM_LD#
<3>
FUM_LD#
<3>
MM_LD#
<4>
DVM_LD
<17>
FUM_LD
<17>
MM_LD
<18>
R100
1kJ
C1
9
5
100pF
D7
KDS123E(NM)
2
1
3
R99
1kJ
R
324
4.
7kJ
D48
KDS123E(NM)
2
1
3
R153
1kJ
R401
1kJ
D146
KDS123E(NM)
2
1
3
C1
5
9
100pF
C1
5
9
100pF
D8
KDS123E(NM)
2
1
3
D88
KDS123E(NM)
2
1
3
D133
KDS123E(NM)
2
1
3
R37
1kJ
D3
KDS123E(NM)
2
1
3
R326
1kJ
R8
0
1
0
k
J
D9
KDS123E(NM)
2
1
3
R
6
27
10kJ
C
1
100pF
R
2
10kJ
R353
1kJ
R36
1kJ
R8
1
1
0
k
J
R
9
10kJ
C
2
65
100pF
R
8
10kJ
R6
1
6
1
0
k
J
C
4
6
1
00pF
C
4
6
1
00pF
C
9
100pF
D39
KDS123E(NM)
2
1
3
D2
KDS123E(NM)
2
1
3
R1
1
9
4.
7kJ
R38
1kJ
D40
KDS123E(NM)
2
1
3
R30
1kJ
R
6
25
10kJ
C
2
47
100pF
C
2
100pF
C3
9
100pF
R120
1kJ
C2
6
0
1
0
0
p
F
D56
KDS123E(NM)
2
1
3
R
152
4.
7kJ
D10
KDS123E(NM)
2
1
3
R
354
4.
7kJ
R339
1kJ
R1
0
1
0
k
J
C
6
1
1
00pF
C
6
1
1
00pF
R624
1kJ
D89
KDS123E(NM)
2
1
3
C
8
100pF
C
1
0
1
00pF
R
4
10kJ
D121
KDS123E(NM)
2
1
3
R
340
4.
7kJ
C2
5
9
100pF
R
3
10kJ
R600
1kJ
C1
6
9
100pF
C1
6
9
100pF
R35
1kJ
D1
KDS123E(NM)
2
1
3
R5
4
7
1
0
k
J
R1
1
1
0
k
J
R
414
2kJ
C
7
100pF
C
3
100pF
R626
1kJ
R29
1kJ
D137
KDS123E(NM)
2
1
3
C
4
0
1
00pF
R28
1kJ
R546
1kJ
C
1
55
100pF
C
1
55
100pF
D96
KDS123E(NM)
2
1
3
D90
KDS123E(NM)
2
1
3
C
D
E
4
3
2
1
12/19
C
D
E

MX-M753  CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図  
2 –  109
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
/M1LUDin
<4>
/M1PEDin
<4>
/M2LUDin
<4>
/M1LUD
<18>
/M2LUD
<18>
/POD1in
<3>
/POD3
<17>
/POD3in
<3>
/POD2in
<3>
/POD1
<17>
/POD2
<17>
/M1PED
<18>
PCU_DTR
<17,18>
PCU_TXD
<17,18>
M2SS1
<18>
M2SS2
<18>
M2SS3
<18>
M2SS4
<18>
M2SS1in
<4>
M2SS2in
<4>
M2SS3in
<4>
M2SS4in
<4>
M1SS1
<18>
M1SS1in
<4>
PCU_TXD#
<6>
M1SS2in
<4>
M1SS3in
<4>
M1SS4in
<4>
M1SS2
<18>
M1SS3
<18>
M1SS4
<18>
PCU_RES#
<6>
PCU_DTR
<17,18>
PCU_DTR#
<6>
PCU_TXD
<17,18>
/RSV_DAT
<17>
/RSV_DAT #
<6>
JOBEND_INT
<17>
JOBEND_INT##
<6>
PCU_RES
<17,18>
PCU_RES
<17,18>
C
2
3
1
00pF
R6
2
0
4
.7
k
J
C
1
22
100pF
C
1
25
33pF(
N
M
)
D33
KDS123E(NM)
2
1
3
C
3
3
1
00pF
R1
6
4
.7
k
J
R1
6
4
.7
k
J
C
2
2
1
00pF
R53
1kJ
C
1
40
100pF(
N
M
)
R52
1kJ
D147
KDS123E(NM)
2
1
3
R601
1kJ
D24
KDS123E(NM)
2
1
3
C
3
4
1
00pF
R6
1
7
4
.7
k
J
R2
4
4
.7
k
J
R2
4
4
.7
k
J
R93
1kJ
R93
1kJ
D79
KDS123E(NM)
2
1
3
R54
1kJ
R96
1kJ
R96
1kJ
D36
KDS123E(NM)
2
1
3
D86
KDS123E(NM)
2
1
3
R6
9
4.
7kJ
R2
9
51
k
J
R307
10kJ
C
1
7
1
00pF
R297
1kJ
D23
KDS123E(NM)
2
1
3
R2
6
5
1
k
J
D83
KDS123E(NM)
2
1
3
R6
7
4
.7
k
J
R6
8
4
.7
k
J
R2
6
0
1
k
J
R602
1kJ
C
2
1
1
00pF
R6
1
9
4.
7kJ
R58
1kJ
R58
1kJ
R1
7
4
.7
k
J
R59
1kJ
R59
1kJ
R306
1kJ
D16
KDS123E(NM)
2
1
3
C
1
31
33pF(
N
M
)
R2
2
4
.7
k
J
R2
2
4
.7
k
J
R256
1kJ
C
1
6
1
00pF
R603
1kJ
C
1
5
1
00pF
D34
KDS123E(NM)
2
1
3
R61
1kJ
R61
1kJ
D15
KDS123E(NM)
2
1
3
R252
1kJ
C
3
5
1
00pF
C
2
66
100pF
R264
1kJ
C
2
68
100pF
C
2
0
1
00pF
C
3
6
1
00pF
D22
KDS123E(NM)
2
1
3
D21
KDS123E(NM)
2
1
3
R2
3
4
.7
k
J
R2
3
4
.7
k
J
D150
KDS123E(NM)
2
1
3
R60
1kJ
R60
1kJ
D81
KDS123E(NM)
2
1
3
C2
6
9
100pF
D17
KDS123E(NM)
2
1
3
D35
KDS123E(NM)
2
1
3
C
1
43
100pF(
N
M
)
D149
KDS123E(NM)
2
1
3
R2
5
0
1
k
J
R95
1kJ
R95
1kJ
D84
KDS123E(NM)
2
1
3
R1
8
4
.7
k
J
R7
0
4
.7
k
J
R2
5
4
.7
k
J
R2
5
4
.7
k
J
R94
1kJ
R94
1kJ
A
B
C
4
3
2
1
PCU PWB (Input section 2 & Inter Lock)
A
B
C

MX-M753  CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図  
2 –  110
INT24V1
5VLD
3.3V
INT24V1
3.3V
3.3V
3.3V
3.3V
3.3V
>
DSW-Fin
<3>
DSW-F
<17,18>
DSW-Lin
<3>
DSW-L
<17>
DSW-L(F)
<17>
/DSW-DSKin
<4>
/M2SPDin
<4>
/M1SPDin
<4>
/DSW-DSK
<18>
/M1SPD
<18>
/M2PEDin
<4>
/T2SPD
<18>
/T2SPDin
<4>
/T1SPDin
<4>
/M2PED
<18>
/T1SPD
<18>
/M2SPD
<18>
DSW-F(R)
<17,18>
DSW-R
<18>
DSW-MPFin
<4>
/TANSET
<18>
/TANSETi n
<4>
DSW-F
24V1(DSW)
DSW-L
(24V1)
Transfer
Bias PWB
HV
DSW-R
+
C54
47u/35V
+
D14
KDS123E(NM)
2
1
3
D57
KDS123E
2
1
3
Q12
TPC8109
Source
1
Source
2
Source
3
Gate
4
Drain
5
Drain
6
Drain
7
Drain
8
R142
5.6kJ 1/4W
D37
KDS123E(NM)
2
1
3
R155
20kJ
C
3
8
1
00pF
TP120
D155
1SS355
+
C57
47u/35V
+
D38
KDS123E(NM)
2
1
3
R111
1kJ
C
3
7
1
00pF
D132
KDS123E
2
1
3
D58
1SS355
R2
7
4
.7
k
J
R1
5
4
.7
k
J
R1
0
2
4
.7
k
J
IC13
NJM7812DL1A
IN
1
OUT
3
GND
2
C
2
7
1
00pF
R2
6
4
.7
k
J
R143
2.4kJ 1/4W
R97
1kJ
C
4
5
1
00pF
R642
20kJ
D25
KDS123E(NM)
2
1
3
C275
0.1uF
R1
1
0
4
.7
k
J
D131
KDS123E
2
1
3
C63
22000pF
IC17
NJM7805DL1A
IN
1
OUT
3
GND
2
C62
0.1uF
D154
1SS355
TP235
TP1010
R51
1kJ
TP1009
C274
0.1uF
C
1
4
1
00pF
R154
3.3kJ
R7
9
4.
7kJ
R641
20kJ
D63
1SS355
C
4
1
1
00pF
TP195
D55
1SS355
R103
1kJ
R65
1kJ
R633
3.3kJ
D43
KDS123E(NM)
2
1
3
R7
1
4
.7
k
J
C
2
4
1
00pF
R98
1kJ
D45
KDS123E(NM)
2
1
3
C81
22000pF
+
C80
22u/16V
+
D28
KDS123E(NM)
2
1
3
R62
1kJ
+
C64
47u/35V
+
R634
3.3kJ
C
D
E
4
3
2
1
13/19
C
D
E

MX-M753  CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図  
2 –  111
12V
3.3V
12V
3.3V
Vref
Vref
3.3V
Vref
3.3V
Vref
Vref
12V
3.3V
Vref
12V
3.3V
3.3V
Vref
Vref
TH_UM_IN
<17>
TH_LM_IN
<17>
TH_US_IN
<17>
TH_UM
<1>
FTH_UM
<5>
THOPEN_UM <3>
FTH_LM
<5>
TH_LM
<1>
THOPEN_LM <3>
R580
24kF
R515
0J(NM)
C243
22000pF
R587
200kF
R553
19.1kF
D136
RB420d
D120
KDS123E(NM)
2
1
3
D117
KDS123E
2
1
3
TP990
R490
10kF
TP877
11
10
R489
10kF
R545
2kF
R584
200kF
5
4
R502
4.7kJ
TP922
R586
24kF
R582
300kF
R582
300kF
R492
620F
R585
300kF
R568
1kJ
5
6
TP937
R514
100J
C241
0.1uF
+
-
IC51C
LM339
+
-
9
8
14
R495
10kF
R573
10kJ(NM)
TP951
R551
27kF
R552
2.4kF
R549
2kF
TP936
R528
0J(NM)
TP819
R5
TP989
C236
22000pF(NM)
+
-
IC56C
LM324D
+
-
10
9
8
D134
RB420d
+
-
IC60C
LM339
+
-
9
8
14
C242
0.1uF
C234
22000pF(NM)
R569
1kJ
D135
RB420d
R527
100J
R491
620F
R581
200kF
C235
0.1uF
R516
100J
5
4
D118
KDS123E(NM)
2
1
3
R534
100J
R579
300kF
C238
0.1uF
12
13
C251
0.1uF
D119
KDS123E(NM)
2
1
3
R488
620F
+
-
IC60A
LM339
+
-
7
6
1
3
12
R548
19.1kF
11
10
TP871
R583
24kF
D113
KDS123E
2
1
3
TP831
C239
22000pF
TP910
TP808
+
-
IC51A
LM339
+
-
7
6
1
3
12
+
-
IC56A
LM324D
+
-
3
2
1
4
11
R503
4.7kJ
TP988
C240
22000pF
A
B
C
4
3
2
1
PCU PWB (Input section 3 (Analog))
A
B
C

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