Read Sharp MX-M550U / MX-M620U (serv.man2) Service Manual online
MX-M550/M620/M700 CIRCUIT DIAGRAM / 回路図 4 - 98
1pin <-> 2pin Patt
ern short
PONRST
2,9,10,11,23,30
RES_SCN
14
CNCT_FAX_A 9
FAX_ON
10
12V_RST
14
+12V_FAN
14
SRAM_CE2
11
RTCCS_CNTA 14
VCC
VCC
3.3V
VCC
+12V
+12V
3.3V
VCC
3.3V
3.3V
3.3V
3.3V
F3
ICP-S2.3
NO ASM
1
2
1
2
IC753
PST598IN
1
2
3
4
5
M/R
SUB
GND
VOUT
VCC
ICT2102
C43B
74LCX14MTC
4
D14
RB451F
2
1
3
ICT1833
Q17
2SB1198K
3
2
1
R
1203
1K
+
C1009
470uF/16V
R1234
1K
NO ASM
R
1207
1K
NO
ASM
ICT2101
R1230
1K
ICT2017
ICT750
C212
0.1uF
Q18
2SC2412K
3
2
1
IC43D
74LCX14MTC
9
8
ICT2104
IC43E
74LCX14MTC
11
10
6
C6102
4
5
6
S
D
D
R1226
10K
D35
RB451F
2
1
3
IC47
PST598DN
1
2
3
4
5
M/R
SUB
GND
VOUT
VCC
+
C207
10uF/16V
NO ASM
ICT2103
R1227
1K
IC48
PST598DN
1
2
3
4
5
M/R
SUB
GND
VOUT
VCC
R
1204
10
K
ICT2100
ICT2106
R950
5.6KF
C183
0.1uF
R951
4.7KF
ICT2105
R253
1K
R1232
0
NO ASM
178
10K
R1233
0
NO ASM
ICT912
C191
0.1uF
R1225
2.2K
D36
RD2.0S
R1177
0(1608)
NO ASM
R1229
5.6K
ICT2084
R1228
1K
ICT2107
R1231
0
3
3
2
2
1
1
D
C
B
A
22/30
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