Sharp MX-M550U / MX-M620U (serv.man2) Service Manual ▷ View online
MX-M550/M620/M700 CIRCUIT DIAGRAM / 回路図 4 - 78
BATTERY
BATTERY ON
<->
OFF
BT_OK
BT_CK
9
SRAM_PW
EXTRST
9,22
IOD[15:0]
7,9,10,30
IOA0
7,30
IOA0-
7,30
EXTRSTB
22
VCC
3.3BT
+12V
VCC
VCC
VBT
3.3BT
ICT15
IC64E
74LCX14MTC
11
10
ICT914
Q3
DTC114EUA
1
2
3
ICT995
ICT874
R483
0
NO ASM
R484
0
R
204
1K
ICT1382
R485
0
D10
DAP202U
2
1
3
D9
RLS-73
ICT1823
R486
0
NO ASM
D8
RLS-73
+
-
IC39A
LM393D
3
2
1
8
4
JP6
TS3B-SQ
3
1
2
ICT196
R
202
82
K
R208
10K
R
203
10
K
ICT769
BT1
CR2450
ICT626
IC64C
74LCX14MTC
5
6
+ C179
10uF/16V
IC64A
74LCX14MTC
1
2
D7
DAP202U
NO ASM
2
1
3
D12
RB451F
2
1
3
R
215
3.
3K
ICT1208
ICT913
ICT873
ICT1384
R
205
1K
C197
0.1uF
3
3
2
2
1
1
D
C
B
A
11/30
MX-M550/M620/M700 CIRCUIT DIAGRAM / 回路図 4 - 79
2_DAT
A
1+
16
2_DATA
1-
16
2_CLK-
16
S
2_DAT
A
1+
14
S
2_CLK-
14
S
2_DATA
1-
14
S
2_CLK+
14
2_DBL+
16
S
2_DBL-
14
2_DATA
0-
16
S
2_DATA
0-
14
2_DAT
A
0+
16
S
2_DAT
A
0+
14
2_CLK+
16
S
2_DBL+
14
2_DBL-
16
1_DAT
A
0+
16
S
1_CLK-
14
1_CLK+
16
1_DATA
0-
16
1_DATA
1-
16
1_DBL-
16
S
1_DAT
A
0+
14
S
1_DATA
0-
14
1_DAT
A
1+
16
S
1_DBL-
14
S
1_CLK+
14
1_CLK-
16
1_DBL+
16
S
1_DATA
1-
14
S
1_DAT
A
1+
14
S
1_DBL+
14
L739
MM
Z1608
D
121
BT
A
00
1
2
RV
26
AVR-M1608
C270
KT2AB
L71
6
MM
Z1608
D
121
BT
A
00
1
2
L740
MM
Z1608
D
121
BT
A
00
1
2
RV
21
AVR-M1608
C270
KT2AB
L714
MM
Z1608
D
121
BT
A
00
1
2
RV
16
AVR-M1608
C270
KT2AB
L737
MM
Z1608
D
121
BT
A
00
1
2
RV
17
AVR-M1608
C270
KT2AB
L742
MM
Z1608
D
121
BT
A
00
1
2
L719
MM
Z1608
D
121
BT
A
00
1
2
RV
20
AVR-M1608
C270
KT2A
B
RV
18
AVR-M1608
C270
KT2AB
RV
19
AVR-M1608
C270
KT2AB
L71
8
MM
Z1608
D
121
BT
A
00
1
2
RV
27
AVR-M1608
C270
KT2AB
L741
MM
Z1608
D
121
BT
A
00
1
2
L72
1
MM
Z1608
D
121
BT
A
00
1
2
RV
24
AVR-M1608
C270
KT2AB
RV
14
AVR-M1608
C270
KT2AB
RV
25
AVR-M1608
C270
KT2AB
RV
15
AVR-M1608
C270
KT2AB
L72
0
MM
Z1608
D
121
BT
A
00
1
2
L738
MM
Z1608
D
121
BT
A
00
1
2
RV
22
AVR-M1608
C270
KT2AB
L71
7
MM
Z1608
D
121
BT
A
00
1
2
L715
MM
Z1608
D
121
BT
A
00
1
2
RV
23
AVR-M1608
C270
KT2AB
RV
13
AVR-M1608
C270
KT2AB
L744
MM
Z1608
D
121
BT
A
00
1
2
RV
12
AVR-M1608
C270
KT2AB
L74
3
MM
Z1608
D
121
BT
A
00
1
2
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
MFP
CONTROL
PWB
(S
CANN
E
R
I/F)
(MX-M6
20N/M6
20U/M6
20)
12
/30
MX-M550/M620/M700 CIRCUIT DIAGRAM / 回路図 4 - 80
[RIC
I/F
(SIO
#5
)]
TXD
5
9
DSR
5
9
RXD
5
9
DTR
5
9
RTS
5
9
CTS
5
9
TXD
4
9
RTS
4
9
RXD
4
9
CTS
4
9
VCC
VCC
3.
3V
ICT
1342
C
206
0.
1uF
(1608
)
ICT
994
ICT
991
C
195
0.
1uF
ICT
1806
ICT
849
ICT
992
C
181
0.
1uF
(1608
)
ICT
993
IC
42
HIN
207
ECB-T
7 6 18 19 21
5 22 17
2 3 1 24 20
4 23 16
10
12
13
14
11
15
9
8
T1
IN
T2
IN
T3
IN
T4
IN
T5
IN
R
1OUT
R
2OUT
R
3OUT
T1
OUT
T2
OUT
T3
OUT
T4
OUT
T5
OUT
R
1IN
R
2IN
R
3IN
C
1+
C
1-
C
2+
C
2-
V+
V-
VCC
GND
R
434
4.
7K
ICT
1804
ICT
1805
C
205
0.
1uF
(1608
)
CN
703
DEBUG NO
ASM
1 2 3 4 5 6
R
435
4.
7K
C
188
0.
1uF
(1608
) ICT
791
ICT
1874
CN
14
JEY-
9P-
1A
3F
1 2 3 4 5 6 7 8 9
CD RXD TXD DTR GND DSR RTS CTS NC
ICT
1875
ICT
1343
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
MFP
CONTROL
PWB
(S
E
RIAL
I/F)
(MX-M6
20N/M6
20U/M6
20)
13/30
MX-M550/M620/M700 CIRCUIT DIAGRAM / 回路図 4 - 81
Normal :
HiZ
Sleep
:
L
(L73
1-2
CN_DA2
CN_CS1
CN_DD7
CN_DD6
CN_DD5
CN_DD4
CN_DD3
CN_DD2
CN_DD1
CN_DD0
CN_DA1
CN_DA0
CN_CS0
CN_DD8
CN_DD9
CN_DD10
CN_DD11
CN_DD12
CN_DD13
CN_DD14
CN_DD15
VIDEO0
17
MSW_MON
PWM
RES_PCU
22
CN_INTRQ
26
CN_DACK_
26
CN_IORDY
26
CN_CBLID_
26
CN_DMARQ_
26
CN_DIOW_
26
CN_DD[15:0]
26
CN_DIOR_
26
CN_DA[2:0]
26
CN_RST_
26
CN_CS[1:0]
26
DCCNT2
CN_DA[2:0]
26
CN_CS[1:0]
26
PCU_VCCW
30
CN_DTEN
CN_HSYNC
SLCDD01
10
SLCDD00
10
SLCDD10
10
SLCDD11
10
SLCDD20
10
SLCDD21
10
SLCDD30
10
SLCDD31
10
SFRAME_P
10
SFRAME_M
10
SM_P
10
SM_M
10
SLP_M
10
SLP_P
10
SCP_M
10
SCP_P
10
SLEEP
LCDDIS
10
WAKE_UP
23
LCD_VEE
10,30
LED_ON
RES_SCN
22
RES_MFP_S
22
S1_DATA1+
12
S1_DATA1-
12
S1_DATA0+
12
S1_DATA0-
12
S1_CLK+
12
S1_CLK-
12
S1_DBL+
12
S1_DBL-
12
POF
22
POF
22
SCN_SET
9
SCN_VCC
S2_DATA1+
12
S2_DATA1-
12
S2_DATA0+
12
S2_DATA0-
12
S2_CLK+
12
S2_CLK-
12
S2_DBL+
12
S2_DBL-
12
TXD_SCN
DTR_SCN
RXD_SCN
DSR_SCN
CN_DSR3
CN_RXD3
VIDEO1
17
CN_TXD3
CN_DTEN
CN_HSYNC
PROFF_CNT3
9
10
CN_DTR3
PRON_FAX
28
LED_GND
9
CNTFAN_MON
17
HDDFAN_
PRDY
9
+12V_FAN
22
CN_DASP_
25
+12V
VCC
3.3V
+5VS
+12V
3.3V
3.3V
VCC
+12V
VCC
Q1
ICP-S1.2
1
2
1
2
R1120
10K
C1004
100pF
Q4
DTC114YUA
1
2
3
+
C168
47uF/16V
Q13
DTC114EUA
+
C167
47uF/16V
CN701
PS-40PE-D4T2-M1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
RESET
GND
DD7
DD8
DD6
DD9
DD5
DD10
DD4
DD11
DD3
DD12
DD2
DD13
DD1
DD14
DD0
DD15
GND
KEY
DMAREQ
GND
DIOW
GND
DIOR
GND
IORDY
CSEL
DMACK
GND
INTRQ
ICCS10
DA1
PDIAG/CBLID
DA0
DA2
CS0
CS1
DASP
GND
R1122
10K
3.
1
2
3
4
+
C951
10uF/35V
Q14
DTA114EUA
ICT1650
CN8
TX24-100R-LT-H1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
GND2
GND2
1_DATA1+
2_DATA1+
1_DATA1-
2_DATA1-
GND2
GND2
2_DATA0+
1_CLK+
2_DATA0-
1_CLK-
GND2
GND2
/2_DBL+
LCDD0+
/2_DBL-
LCDD0-
GND2
GND2
LCDD3+
GND2
LCDD3-
GND2
GND2
CNTFAN_MON
LCDM+
LCDCP1+
LCDM-
LCDCP1-
GND2
POF_SCN
/TXD_SCN
DTR_SCN
/SCNSET
FRDY
SLEEP
GND2
GND2
VIDEO-
/RXD_PCU
VIDEO+
/TXD_PCU
GND2
DCCNT
DTR_PCU
PCU-VCCW
/POF
PWM
+12V1
GND2
GND2
1_DATA0+
2_CLK+
1_DATA0-
2_CLK-
GND2
GND2
/1_DBL+
LCDD1+
/1_DBL-
LCDD1-
GND2
GND2
LCDD2+
GND2
LCDD2-
GND2
GND2
GND2
LCDS+
LCDCP2+
LCDS-
LCDCP2-
GND2
HDDFAN_MON
+3.3V
+3.3V
GND2
/PRON_FAX
/RES_MFP
/RXD_SCN
/DSR_SCN
/RES_SCN
VCCW_SCN
PSSW
LCD-VEE
LCDDIS
WAKEUP
HDD-VCC
HDD-VCC
HDD-VCC
HDD-VCC
HSYNC
DSR_PCU
PAGE
/MSWOFF
RES_PCU
PROFF_CNT
NC
IC43C
74LCX14MTC
5
6
CN702
PS-20PE-D4T2-M1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5V1
+5VS
+5V1
L732
MMZ1608D1
1
D27
RB451F
2
1
3
L731
MMZ1608D1
1
D29
RB451F
2
1
3
D26
RB451F
2
1
3
ICT2072
R1121
10K
D28
RB451F
2
1
3
ICT2073
L733
DSS6NZ82A103Q55B
1
2
3
C172
0.1uF
5
5
4
4
3
3
D
C
B
A
MFP CONTROL PWB (ENGINE I/F CN) (MX-M620N/M620U/M620)
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