Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man4) Service Manual ▷ View online
MX-M350/M450 CIRCUIT DIAGRAM / 回路図 3 - 10
"H"
YO_TEST[1:0]
XPLLBYPS[2:0]
"L"
BYPASS
NORMAL
ACTIVE BUFFER TEST SIGNAL
LCS1
9
LCS2
9
LCS0
9
LCS3
7,26
+3.3V2
+3.3V2
+2.5V
+3.3V2
+3.3V2
+2.5V
R767
4.7K
R768
0
NO ASM
C54
0
.1uF
R771
4.7K
NO ASM
R772
0
+
C64
22uF/16V
C85
0
.1uF
C750
0.1uF
C100
0.1uF
C106
0.1uF
C738
0.1uF
C739
0.1uF
C751
0.1uF
+
C57
22uF/16V
+
C736
22uF/16V
R765
4.7K
NO ASM
+
C737
22uF/16V
R766
0
C740
0.1uF
C741
0.1uF
IC700B
MB87R1060V94
J5
M5
R5
V5
V5
AB9
AB12
AB15
AB18
AB15
AB18
V22
R22
R22
M22
J22
E18
E15
E12
E15
E12
E9
F5
K5
N5
U5
N5
U5
AA5
AB6
AB6
AB10
AB13
AB17
AB21
AA22
AB13
AB17
AB21
AA22
U22
P22
K22
P22
K22
F22
E21
E17
E14
E10
E17
E14
E10
E6
A1
AF1
AF26
A26
E5
H5
L5
T5
W5
AB5
AB8
AB11
AB16
AB19
AB22
W22
T22
L22
H22
E22
E19
E16
E11
E8
AF16
AE15
AD14
AC13
AF22
AE22
AD22
AC22
AF2
AE26
D24
G22
D26
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDE
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VDDI
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
AVDDH1
AVDDH2
AVDDH3
AVDDH4
AVSS1
AVSS2
AVSS3
AVSS4
AVSS5
AVSS6
AVSS7
AVSS8
AVSS9
C742
0.1uF
C53
0.1uF
+
C115
22uF/16V
C88
0.1uF
C96
0.1uF
R769
4.7K
C128
0.1uF
R770
0
NO ASM
C745
0.1uF
C746
0.1uF
+
C114
22uF/16V
+
C743
22uF/16V
+
C744
22uF/16V
C747
0.1uF
C748
0.1uF
C749
0.1uF
R773
4.7K
NO ASM
R774
0
3
2
1
3
2
1
D
C
B
A
5/26
MX-M350/M450 CIRCUIT DIAGRAM / 回路図 3 - 11
3
3_MD6
3_MD30
MAA9
MAA6
3_MD25
MAA6
MAA1
3
SDQMA1
3_MD21
3_MD17
MAA10
3_MD15
3
MAA1
3_MD13
MAA12
MAA10
3
3_MD10
SDQMA0
3_MD26
3_MD23
MAA8
MAA7
MAA4
MAA9
SDQMA7
3
3_MD9
3
MAA5
MAA5
3_MD29
3_MD3
3
MAA8
3_MD14
MAA3
SDQMA5
3
MAA11
3_MD19
MAA10
MAA1
MAA5
3
3_MD16
MAA6
3_MD28
MAA7
3_MD22
MAA3
MAA6
SDQMA6
MAA12
3
SDQMA3
3
MAA9
3_MD24
3_MD7
MAA4
MAA0
MAA8
MAA0
MAA2
MAA5
MAA4
MAA1
SDQMA2
3_MD8
3
3_MD11
3
MAA2
MAA0
3
3_MD20
3_MD12
MAA9
MAA2
SDQMA4
MAA11
MAA11
MAA2
3_MD2
MAA7
MAA10
MAA7
3
3_MD5
3
MAA0
MAA4
3_MD27
3_MD1
3_MD0
MAA8
MAA11
MAA12
3_MD4
MAA3
MAA12
3_MD31
MAA3
3_MD18
BSEL1A
2,3
MCASA
2,3
MAA[12:0]
2
MEMCLK0
20
SDQMA[7:0]
2
MWE
2,3
CKEA
2,3
MEMCLK0
20
MRASA
2,3
MEMCLK0
20
MCS0
2,3
MEMCLK0
20
BSEL0A
2,3
3_MD[63:0]
2
+3.3V2
+3.3V2
+3.3V2
+3.3V2
IC5
NT5SV16M16BS-75B
23
24
25
26
29
30
31
32
33
34
22
35
24
25
26
29
30
31
32
33
34
22
35
2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
3
9
43
49
6
12
46
52
9
43
49
6
12
46
52
17
18
18
19
16
16
38
37
37
39
15
20
21
15
20
21
1
14
27
28
41
54
27
28
41
54
36
40
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
QD0
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD10
QD11
QD12
QD13
QD14
QD15
QD11
QD12
QD13
QD14
QD15
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
CAS#
RAS#
RAS#
CS#
WE#
CLK
CKE
CKE
UDQM
LDQM
BS0
BS1
LDQM
BS0
BS1
VCC
VCC
VCC
VSS
VSS
VSS
VCC
VCC
VSS
VSS
VSS
A12
NC
C12
0.1uF
C11
0.1uF
IC4
NT5SV16M16BS-75B
23
24
25
26
29
30
31
32
33
34
22
35
24
25
26
29
30
31
32
33
34
22
35
2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
3
9
43
49
6
12
46
52
9
43
49
6
12
46
52
17
18
18
19
16
16
38
37
37
39
15
20
21
15
20
21
1
14
27
28
41
54
27
28
41
54
36
40
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
QD0
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD10
QD11
QD12
QD13
QD14
QD15
QD11
QD12
QD13
QD14
QD15
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
CAS#
RAS#
RAS#
CS#
WE#
CLK
CKE
CKE
UDQM
LDQM
BS0
BS1
LDQM
BS0
BS1
VCC
VCC
VCC
VSS
VSS
VSS
VCC
VCC
VSS
VSS
VSS
A12
NC
IC7
NT5SV16M16BS-75B
23
24
25
26
29
30
31
32
33
34
22
35
24
25
26
29
30
31
32
33
34
22
35
2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
3
9
43
49
6
12
46
52
9
43
49
6
12
46
52
17
18
18
19
16
16
38
37
37
39
15
20
21
15
20
21
1
14
27
28
41
54
27
28
41
54
36
40
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
QD0
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD10
QD11
QD12
QD13
QD14
QD15
QD11
QD12
QD13
QD14
QD15
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
CAS#
RAS#
RAS#
CS#
WE#
CLK
CKE
CKE
UDQM
LDQM
BS0
BS1
LDQM
BS0
BS1
VCC
VCC
VCC
VSS
VSS
VSS
VCC
VCC
VSS
VSS
VSS
A12
NC
ICT1354
ICT1433
ICT1376
ICT1340
C297
0.1uF
C298
0.1uF
C13
0.1uF
IC6
NT5SV16M16BS-75B
23
24
25
26
29
30
31
32
33
34
22
35
24
25
26
29
30
31
32
33
34
22
35
2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
3
9
43
49
6
12
46
52
9
43
49
6
12
46
52
17
18
18
19
16
16
38
37
37
39
15
20
21
15
20
21
1
14
27
28
41
54
27
28
41
54
36
40
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10/AP
A11
QD0
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD1
QD2
QD3
QD4
QD5
QD6
QD7
QD8
QD9
QD10
QD11
QD12
QD13
QD14
QD15
QD11
QD12
QD13
QD14
QD15
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VCCQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
VSSQ
CAS#
RAS#
RAS#
CS#
WE#
CLK
CKE
CKE
UDQM
LDQM
BS0
BS1
LDQM
BS0
BS1
VCC
VCC
VCC
VSS
VSS
VSS
VCC
VCC
VSS
VSS
VSS
A12
NC
C14
0.1uF
5
4
3
5
4
3
D
C
B
A
MFP CONTROL PWB (SDRAM OnBOARD/DIMM)
MX-M350/M450 CIRCUIT DIAGRAM / 回路図 3 - 12
SDRAM DIMM Slot
3_MD63
3_MD38
3_MD43
3_MD53
3_MD44
3_MD41
3_MD46
3_MD35
3_MD62
3_MD33
3_MD51
3_MD60
3_MD57
3_MD58
3_MD58
3_MD61
3_MD45
3_MD52
3_MD32
3_MD39
3_MD59
3_MD50
3_MD47
3_MD42
3_MD49
3_MD54
3_MD48
3_MD34
3_MD56
3_MD55
3_MD37
3_MD40
3_MD36
3_MD0
3_MD1
3_MD2
3_MD3
3_MD4
3_MD5
3_MD6
3_MD7
3_MD8
3_MD9
3_MD10
3_MD11
3_MD12
3_MD13
3_MD14
3_MD15
3_MD16
3_MD17
3_MD18
3_MD19
3_MD20
3_MD21
3_MD22
3_MD23
3_MD24
3_MD25
3_MD26
3_MD27
3_MD28
3_MD29
3_MD30
3_MD31
3_MD32
3_MD33
3_MD34
3_MD35
3_MD36
3_MD37
3_MD38
3_MD39
3_MD40
3_MD41
3_MD42
3_MD43
3_MD44
3_MD45
3_MD46
3_MD47
3_MD48
3_MD49
3_MD50
3_MD51
3_MD52
3_MD53
3_MD54
3_MD55
3_MD56
3_MD57
3_MD58
3_MD59
3_MD60
3_MD61
3_MD62
3_MD63
3_MD1
3_MD2
3_MD3
3_MD4
3_MD5
3_MD6
3_MD7
3_MD8
3_MD9
3_MD10
3_MD11
3_MD12
3_MD13
3_MD14
3_MD15
3_MD16
3_MD17
3_MD18
3_MD19
3_MD20
3_MD21
3_MD22
3_MD23
3_MD24
3_MD25
3_MD26
3_MD27
3_MD28
3_MD29
3_MD30
3_MD31
3_MD32
3_MD33
3_MD34
3_MD35
3_MD36
3_MD37
3_MD38
3_MD39
3_MD40
3_MD41
3_MD42
3_MD43
3_MD44
3_MD45
3_MD46
3_MD47
3_MD48
3_MD49
3_MD50
3_MD51
3_MD52
3_MD53
3_MD54
3_MD55
3_MD56
3_MD57
3_MD58
3_MD59
3_MD60
3_MD61
3_MD62
3_MD63
SDQMA0
SDQMA1
SDQMA2
SDQMA3
SDQMA4
SDQMA5
SDQMA6
SDQMA7
SDQMA1
SDQMA2
SDQMA3
SDQMA4
SDQMA5
SDQMA6
SDQMA7
MAA0
MAA1
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8
MAA9
MAA10
MAA11
MAA12
MAA1
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8
MAA9
MAA10
MAA11
MAA12
MCASA
2,3
MCS2A
2,3
MAA[12:0]
2
SDA
3
MRASA
2,3
CKEA
2,3
MEMCLK1
20
SDQMA[7:0]
2
3_MD[63:0]
2
SCL
3
BSEL0A
2,3
MEMCLK2
20
MCS1A
2,3
BSEL1A
2,3
MWE
2,3
+3.3V2
+3.3V2
+3.3V2
+3.3V2
+3.3V2
ICT2222
ICT2194
ICT2208
ICT2187
ICT2219
ICT2198
ICT2218
C41
0.1uF
ICT2188
ICT2212
C42
0.1uF
ICT2182
ICT2216
C23
0.1uF
ICT2190
ICT2189
ICT2221
C31
0.1uF
ICT2177
ICT2186
ICT2215
C44
0.1uF
ICT2175
ICT2178
ICT2217
C32
0.1uF
ICT2140
ICT2192
ICT2180
ICT2213
ICT2200
ICT2229
ICT2165
R45
10K
ICT2162
ICT2197
ICT2195
ICT2228
ICT2199
ICT2191
ICT2223
C24
0.1uF
ICT2184
ICT2226
R44
10K
ICT2193
ICT2230
ICT2196
ICT2225
ICT2176
ICT2227
ICT2224
ICT2160
ICT2167
ICT2156
ICT2231
ICT2154
ICT2233
ICT2158
ICT2185
ICT2234
ICT2183
ICT2232
ICT2111
ICT2173
ICT2207
ICT2171
ICT2209
ICT2152
ICT2148
ICT2146
ICT2150
ICT2203
ICT2147
ICT2143
ICT2153
ICT2145
ICT2113
ICT2149
C299
0.1uF
ICT2151
ICT2114
ICT2181
ICT2214
ICT2115
ICT2179
ICT2161
ICT2157
ICT2118
ICT2159
ICT2119
ICT2144
ICT2141
ICT2155
ICT2116
ICT2142
ICT2139
ICT2172
ICT2117
ICT2174
ICT2201
ICT2138
ICT2168
ICT2202
ICT2170
ICT2204
C300
0.1uF
ICT2120
ICT2220
ICT2164
ICT2205
ICT2166
ICT2206
ICT2112
ICT2169
ICT2211
CN3
DM-3D4-B3210TT
29
31
33
30
32
34
31
33
30
32
34
103
104
105
109
111
112
104
105
109
111
112
70
72
72
106
110
110
23
25
25
115
117
117
24
26
26
116
118
118
69
71
71
65
66
66
67
61
74
74
141
142
142
73
57
58
59
60
77
78
79
80
57
58
59
60
77
78
79
80
11
12
27
28
45
46
63
64
81
82
12
27
28
45
46
63
64
81
82
101
102
113
114
129
130
143
144
102
113
114
129
130
143
144
3
5
7
9
13
15
17
19
37
39
41
43
47
49
51
53
83
85
87
89
93
95
97
99
121
123
125
127
131
133
135
137
4
6
8
10
14
16
18
20
38
40
42
44
48
50
52
54
84
86
88
90
94
96
98
100
122
124
126
128
132
134
136
138
5
7
9
13
15
17
19
37
39
41
43
47
49
51
53
83
85
87
89
93
95
97
99
121
123
125
127
131
133
135
137
4
6
8
10
14
16
18
20
38
40
42
44
48
50
52
54
84
86
88
90
94
96
98
100
122
124
126
128
132
134
136
138
1
2
21
22
35
36
55
56
75
76
91
92
107
108
119
120
139
140
2
21
22
35
36
55
56
75
76
91
92
107
108
119
120
139
140
62
68
68
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
BA0
BA1
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
BA0
BA1
DQMB0
DQMB1
DQMB2
DQMB3
DQMB4
DQMB5
DQMB6
DQMB7
DQMB1
DQMB2
DQMB3
DQMB4
DQMB5
DQMB6
DQMB7
CS0
CS1
CS1
RAS
CAS
CAS
WE
CK0
CK1
CK1
SDA
SCL
SCL
DU
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
CKE0
CKE1
CKE1
ICT2163
ICT2210
3
2
1
3
2
1
D
C
B
A
6/26
MX-M350/M450 CIRCUIT DIAGRAM / 回路図 3 - 13
3_LDATA6
3_LDATA9
3_LDATA10
3_LDATA5
3_LDATA13
3_LDATA3
LA3
LA20
LA21
LA6
3_LDATA0
LA12
LA15
3_LDATA4
3_LDATA6
3_LDATA8
LA2
LA8
3_LDATA15
3_LDATA3
3_LDATA0
3_LDATA13
3_LDATA1
LA10
3_LDATA11
3_LDATA10
3_LDATA10
LA17
LA22
3_LDATA5
LA19
3_LDATA2
LA16
3_LDATA15
3_LDATA2
LA18
3_LDATA2
3_LDATA1
LA4
LA7
3_LDATA4
3_LDATA9
3_LDATA5
LA13
3_LDATA4
3_LDATA12
3_LDATA1
3_LDATA14
3_LDATA0
LA11
3_LDATA12
3_LDATA7
3_LDATA11
LA14
3_LDATA3
LA9
3_LDATA7
3_LDATA14
3_LDATA8
LA5
IOA15
IOA14
IOA13
IOA12
IOA14
IOA13
IOA12
IOA11
IOA10
IOA9
IOA8
IOA10
IOA9
IOA8
IOA7
IOA6
IOA5
IOA4
IOA6
IOA5
IOA4
IOA3
IOA2
IOA1
IOA2
IOA1
IOA16
IOA17
SYSAD12
SYSAD33
SYSAD54
SYSAD42
SYSAD2
SYSAD15
SYSAD41
SYSAD14
SYSAD35
SYSAD46
SYSAD53
SYSAD40
SYSAD48
SYSAD10
SYSAD11
SYSAD50
SYSAD47
SYSAD51
SYSAD6
SYSAD7
SYSAD37
SYSAD52
SYSAD49
SYSAD38
SYSAD43
SYSAD36
SYSAD45
SYSAD34
SYSAD8
SYSAD9
SYSAD4
SYSAD39
SYSAD5
SYSAD0
SYSAD13
SYSAD1
SYSAD3
SYSAD44
FWE2
8
BOOTCS
3,9
IOA0
11,26
ALE_H
3
FWE1
25
SLCTIN_P
9
IOA[17:1]
9,10,11,26
SYSAD[63:0]
2,4
FMCS9_2
8
ALE
3
ROMBUFOE
3
3_LDATA[15:0]
3
FOE2
8
ROMWE
3,8,9
FWE0
20
LOE
3,9,11,26
LA[22:2]
8,9,25
ROMBUFDIR
3
FOE
9,25
IOA18
11
IOA21
26
+3.3V2
+3.3V2
+3.3V2
+3.3V2
+3.3V2
+3.3V2
+3.3V2
BR707
33
Ω
1
2
3
4
2
3
4
5
6
7
8
IC727
74LCX245MTC
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
1
19
10
20
18
17
16
15
14
13
12
11
17
16
15
14
13
12
11
A0
A1
A2
A3
A4
A5
A6
A7
A1
A2
A3
A4
A5
A6
A7
T/R
OE
OE
GND
VCC
B0
B1
B2
B3
B4
B5
B6
B7
B1
B2
B3
B4
B5
B6
B7
ICT2044
BR710
33
Ω
1
2
3
4
5
6
7
8
6
7
8
ICT1907
ICT2047
C889
0.1uF
R1067
33
ICT1894
ICT2290
ICT1808
ICT2045
ICT2014
ICT1893
ICT1891
ICT1906
ICT2048
ICT1976
IC730
74LCX245MTC
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
1
19
10
20
18
17
16
15
14
13
12
11
17
16
15
14
13
12
11
A0
A1
A2
A3
A4
A5
A6
A7
A1
A2
A3
A4
A5
A6
A7
T/R
OE
OE
GND
VCC
B0
B1
B2
B3
B4
B5
B6
B7
B1
B2
B3
B4
B5
B6
B7
ICT1892
ICT1890
ICT1956
ICT1905
ICT2049
C893
0.1uF
BR723
33
Ω
1
2
3
4
2
3
4
5
6
7
8
R1381
10K
ICT1904
ICT1889
ICT1903
ICT2050
BR719
33
Ω
1
2
3
4
2
3
4
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
1
19
ICT1888
ICT1840
ICT1916
ICT1902
ICT2051
ICT1901
ICT2052
ICT1915
ICT2053
BR708
33
Ω
1
2
3
4
2
3
4
BR735
33
Ω
1
2
3
4
5
6
7
8
6
7
8
IC737
74LCX373MTC
3
4
7
8
4
7
8
13
14
17
18
14
17
18
1
11
2
5
6
9
12
15
16
19
5
6
9
12
15
16
19
20
10
10
D0
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
OE
LE
LE
O0
O1
O2
O3
O4
O5
O6
O7
O1
O2
O3
O4
O5
O6
O7
VCC
GND
ICT
ICT1914
BR724
33
Ω
1
2
3
4
5
6
7
8
6
7
8
ICT1884
BR716
33
Ω
1
2
3
4
2
3
4
ICT1783
ICT1913
ICT1885
IC726
74LCX244MTC
2
4
6
8
4
6
8
11
13
15
17
13
15
17
18
16
14
12
9
7
5
3
16
14
12
9
7
5
3
1
19
20
10
10
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1OE
2OE
2OE
VCC
GND
ICT1785
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
1
19
ICT1786
IC733
74LCX373MTC
3
4
7
8
4
7
8
13
14
17
18
14
17
18
1
11
2
5
6
9
12
15
16
19
5
6
9
12
15
16
19
20
10
10
D0
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
OE
LE
LE
O0
O1
O2
O3
O4
O5
O6
O7
O1
O2
O3
O4
O5
O6
O7
VCC
GND
ICT1841
ICT1912
ICT1899
ICT1886
ICT1787
IC11C
74LCX32MTC
9
10
8
ICT1788
ICT1789
BR738
33
Ω
1
2
3
4
5
6
7
8
6
7
8
ICT1911
ICT1887
IC26A
74LCX08MTC
1
2
3
ICT1898
ICT1977
ICT1910
BR711
33
Ω
1
2
3
4
2
3
4
IC729
74LCX244MTC
2
4
6
8
4
6
8
11
13
15
17
13
15
17
18
16
14
12
9
7
5
3
16
14
12
9
7
5
3
1
19
20
10
10
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1OE
2OE
2OE
VCC
GND
C920
0.1uF
ICT1897
BR734
33
Ω
1
2
3
2
3
5
6
7
8
ICT1909
ICT1996
C910
0.1uF
BR736
33
Ω
1
2
3
4
2
3
4
5
6
7
8
ICT1883
ICT1896
BR718
33
Ω
1
2
3
4
5
6
7
8
6
7
8
BR737
33
Ω
1
2
3
4
5
6
7
8
6
7
8
ICT2000
ICT1877
ICT2029
ICT1882
C886
0.1uF
ICT1878
ICT1881
ICT1784
ICT2001
ICT2013
ICT1879
ICT2039
IC735
74LCX373MTC
3
4
7
8
4
7
8
13
14
17
18
14
17
18
1
11
2
5
6
9
12
15
16
19
5
6
9
12
15
16
19
20
10
10
D0
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
OE
LE
LE
O0
O1
O2
O3
O4
O5
O6
O7
O1
O2
O3
O4
O5
O6
O7
VCC
GND
ICT2046
BR715
33
Ω
1
2
3
4
2
3
4
5
6
7
8
ICT1843
C930
0.1uF
ICT1880
ICT2043
ICT1908
IC732
74LCX244MTC
2
4
6
8
4
6
8
11
13
15
17
13
15
17
18
16
14
12
9
7
5
3
16
14
12
9
7
5
3
1
19
20
10
10
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1OE
2OE
2OE
VCC
GND
ICT1895
5
4
3
5
4
3
D
C
B
A
MFP CONTROL PWB (BUFFER)
Click on the first or last page to see other MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man4) service manuals if exist.