Read Sharp MX-M550U / MX-M620U (serv.man2) Service Manual online
MX-M550/M620/M700 CIRCUIT DIAGRAM / 回路図 4 - 97
SCNRST
10
RES_MFP_S
14
TDPOF
1,9
POF
14
RES_PCU
14
PCURST
10,18
EXTRSTB
11
+12VFAN
9
IORESET1
9
SFT_RST
10
SFT_RST_
SFT_RST_
CNCT_FAX
28
FAX_PWON
28
FAXRST
10
RES_FAX
28
RES_MFP_F
28
3.3V
VCC
VCC
VCC
VCC
VCC
VCC
VCC
3.3V
3.3V
3.3V
+12V
3.3
ICT1075
ICT2091
ICT407
R1219
0
ICT999
R222
0
NO ASM
ICT2092
ICT1347
ICT2094
ICT2062
IC43B
74LC
3
ICT1346
R
1218
4.
7K
NO
ASM
ICT998
R
223
2.
2K
ICT2095
R247
22
NO ASM
R865
0
NO ASM
ICT627
R1198
0
NO ASM
ICT1348
R
863
4.
7K
R
245
10
K
R
1203
1K
IC45
TD62503F
1
2
3
4
5
6
7
16
15
14
13
12
11
10
8
9
IN1
IN2
IN3
IN4
IN5
IN6
IN7
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
COM-E
NC
C204
0.1uF
R
218
2.
2K
NO
ASM
ICT
2093
R1217
0
C196
0.1uF
R
248
2.
2K
R
1216
4.
7K
R
227
4.
7K
R
228
4.
7K
ICT629
R1211
0
R1213
0
ICT496
R229
0
NO ASM
R
1167
56
K
NO ASM
R
864
4.
7K
ICT749
ICT494
ICT628
Q16
TPC610
1
2
3
D
D
G
R1176
100
R1209
0
NO ASM
R
249
10
K
R
246
10
K
R
1208
4.
7K
R
1202
4.
7K
ICT1689
IC44
TD62503F
1
2
3
4
5
6
7
16
15
14
13
12
11
10
8
9
IN1
IN2
IN3
IN4
IN5
IN6
IN7
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
COM-E
NC
R
221
4.
7K
R
1204
10
K
IC8D
74LCX14MTC
9
8
R219
0
NO ASM
IC8B
74LCX14MTC
3
4
ICT495
ICT1690
R866
22
NO ASM
C202
0.1uF
R
1210
4.
7K
IC46C
74LCX08MTC
9
10
8
ICT2085
SW1
B3SN-3012
NO ASM
1
2
3
4
R
1235
0
C1029
1000pF
R
237
10
K
R482
0
R1212
0
R
1214
0
NO
ASM
R1178
ICT997
R
1215
0
NO
ASM
IC747D
74LCX32MTC
12
13
11
IC46D
74LCX08MTC
12
13
11
C200
1000pF
ICT1383
ICT1110
IC64F
74LCX14MTC
13
12
C203
1000pF
ICT1797
ICT1111
5
5
4
4
3
3
D
C
B
A
MFP CONTROL PWB (RESET / POWER) (MX-M620N/M620U/M620)
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