Read Sharp MX-M623U / MX-M753U (serv.man8) Service Manual online
MX-M753 CIRCUIT DIAGRAM AND PARTS LAYOUT / 回路図 と 部品配置図
2 – 112
3.3V
3.3V
12V
3.3V
3.3V
24V1
5VN
5VN
3.3V
Vref
FWS
<1,3,17>
FW
<17>
TH_US
<1>
FTH_US
<5>
THOPEN_US <3>
38V_MON
<18>
38VMONin
<5>
C132
1000pF
C232
22000pF(NM)
R266
3.3kJ
3.3kJ
R270
1kF
1kF
-
+
IC28B
LM393
-
+
5
6
7
8
4
R285
4.7kF
4.7kF
TP444
TP479
C123
1000pF
1000pF
R512
100J
100J
C237
0.1uF
+
-
IC60D
LM339
+
-
11
10
13
TP465
R255
4.7kJ 1/4W
4.7kJ 1/4W
-
+
IC28A
LM393
-
+
3
2
1
8
4
+
-
IC60B
LM339
+
-
5
4
2
R283
4.7kJ 1/4W
+
-
IC56B
LM324D
+
-
5
6
7
TP455
R281
2kF
2kF
D80
KDS123E
2
1
3
R262
4.7kJ
4.7kJ
R505
100J
100J
C133
0.1uF
0.1uF
TP963
R287
10kF
R288
1.5kF
1.5kF
TP860
R513
0J(NM)
R284
15kF
15kF
R563
1kJ
1kJ
R289
47kF
47kF
R257
4.7kJ
4.7kJ
R271
10kJ
10kJ
+
-
IC51B
LM339
+
-
5
4
2
TP872
TP872
TP445
TP482
+
-
IC56D
LM324D
+
-
12
13
14
R251
4.7kJ 1/4W
+
-
IC51D
LM339
+
-
11
10
13
D85
KDS123E
2
1
3
TP909
TP836
D112
KDS123E
2
1
3
R500
4.7kJ
4.7kJ
C137
1000pF
R293
1.5kF
1.5kF
C
D
E
4
3
2
1
14/19
C
D
E
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