AR-280 (serv.man21). AR280 285 335 Circuit Operation Control PWB - Sharp Copying Equipment Service Manual (repair manual). Page 2

Read Sharp AR-280 (serv.man21) Service Manual online

1
2
3
4
5
6
7
8
D
C
B
A
D
C
B
A
1
2
3
4
5
6
7
8
C256
22pF
C264
22pF
R223
910J
R230
150J
C245
2200pF
C242
2200pF
IC10B
74LV14NS
3
4
IC10A
74LV14NS
1
2
IC10F
74LV14NS
13
12
IC10E
74LV14NS
11
10
IC9B
74LV04NS
3
4
IC13A
74VHCT04SJ
1
2
R244
620KJ
R233
2.2KJ
IC13D
74VHCT04SJ
9
8
IC13B
74VHCT04SJ
3
4
R226
30KJ
1
8
2
7
3
6
1
8
2
7
3
6
4
5
4
5
3
6
2
7
1
8
1
8
2
7
3
6
4
5
IC13F
74VHCT04SJ
13
12
R231
7.5KJ
C236
0.01uF
3
6
2
7
4
5
3
6
2
7
1
8
1
8
3
6
IC9A
74LV04NS
1
2
X2
9.8304MHz
1
8
1
8
2
7
3
6
4
5
3
6
2
7
4
5
3
6
2
7
4
5
2
7
3
6
4
5
4
5
3
6
2
7
1
8
2
7
3
6
2
7
3
6
4
5
1
8
1
8
4
5
3
6
1
8
2
7
4
5
2
7
4
5
2
7
1
8
3
6
4
5
1
8
3
6
2
7
3
6
2
7
1
8
R243
10KJ
C247
1000pF
4
5
C269
10000pF
R245
10KJ
C271
2200pF
C272
22000pF
4
5
4
5
3
6
1
8
2
7
1
8
1
8
2
7
3
6
R246
1.2KJ
C270
1000pF
C244
C241
1000pF
C239
C243
C248
22000pF
IC10C
74LV14NS
5
6
4
5
IC12B
74VHCT04SJ
3
4
IC12C
74VHCT04SJ
5
6
IC12A
74VHCT04SJ
1
2
R252
10KJ
R249
150J
C237
C238
C240
4
5
R250
10KJ
R281
12KF
IC14
M54587FP
NC
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
GND
10
COM
20
19
19
18
18
17
17
16
16
15
15
14
14
13
13
12
12
VCC
11
R232
10KJ
IC11B
LM339NS
5
4
2
3
12
+
-
IC13C
74VHCT04SJ
5
6
C257
22000pF
IC7A
74F32SJ
1
2
3
IC7B
74F32SJ
4
5
6
C220
22000pF
C249
22000pF
C235
22000pF
IC12D
74VHCT04SJ
9
8
14
7
R248
10KJ
R247
10KJ
IC11C
LM339NS
9
8
14
+
-
R251
10KJ
R229
10KJ
IC11A
LM339NS
7
6
1
+
-
C268
10000pF
Q212
UPA502T
3
4
2
1
5
Q209
UPA502T
3
4
2
1
5
C258
22000pF
IC13E
74VHCT04SJ
11
10
14
7
1
8
D224
DAN202K
D209
DAN202K
D223
DAP202K
D210
DAP202K
4
5
D225
DAP202K
D226
DAN202K
D208
DAP202K
Q210
DTA114YKA
3
1
2
IC9C
74LV04NS
5
6
R280
10KJ
D205
DAN202K
C19
22uF/10V
+
D211
DAN202K
1
8
D206
HZU5.1B1
C250
22000pF
C260
22000pF
C265
22000pF
R228
10KJ
C210
22000pF
IC205A
LM358PS
3
2
1
8
4
+
-
Q211
DTC114YKA
3
1
2
IC10D
74LV14NS
9
8
Q213
IMH9A
1
6
5
2
4
3
Q214
IMB9A
4
3
5
1
6
2
IC15
H8/3003
VCC
1
TIOCA3
2
PB1
3
PB2
4
PB3
5
PB4
6
PB5
7
PB6
8
PB7
9
VSS
10
PC0
11
PC1
12
CS4
13
CS5
14
CS6
15
PC5
16
PC6
17
PC7
18
RESO
19
TXD0
20
TXD1
21
RXD0
22
RXD1
23
SCK0
24
SCK1
25
VSS
26
D0
27
D1
28
D2
29
D3
30
D4
31
D5
32
D6
33
D7
34
VSS
35
D8
36
D9
37
D1
0
38
D1
1
39
D1
2
40
D1
3
41
D1
4
42
D1
5
43
VCC
44
A0
45
A1
46
A2
47
A3
48
A4
49
A5
50
A6
51
A7
52
VSS
53
A8
54
A9
55
A1
0
56
A11
57
A12
58
A13
59
A14
60
A15
61
A16
62
A17
63
A18
64
A19
65
WAIT
66
P61
67
P62
68
SCLK
69
STBY
70
RES
71
NMI
72
VSS
73
EXTAL
74
XTAL
75
VCC
76
AS
77
RD
78
HWR
79
LWR
80
MD0
81
MD1
82
MD2
83
AVCC
84
VREF
85
AN0
86
AN1
87
AN2
88
AN3
89
P7
4
90
P7
5
91
P7
6
92
P7
7
93
AVS
S
94
A2
0
95
A2
1
96
A2
2
97
A2
3
98
VSS
99
IR
Q
0
10
0
IR
Q
1
10
1
IR
Q
2
10
2
CS1
10
3
CS0
10
4
TP0
10
5
TP1
10
6
TP2
10
7
TP3
10
8
TP4
10
9
TP5
11
0
TP6
11
1
TP7
11
2
R292
12KF
R1
47J 1/2W
D8
D9
D10
D11
D13
D15
D[8:15]
A4
A14
A13
A9
A19
A16
A10
A3
A12
A1
A11
A5
A17
A6
A[0:20]
A0
A15
A2
A18
A8
A7
D0
D7
D5
D4
D[0:7]
D1
D6
D3
D2
D12
D14
+5V
VREF
AVCC
AVCC
VREF
+5V
+5V
+5V
+5V
+5V
+5V
VREF
+5V
+5V
+5V
+5V
+24V1
+12V
+5V
+5V
+5V
+5V
+5V
+5V
+12V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+12V
A[0:20]
D[0:7]
D[8:15]
LWR\
HWR\
RD\
ROM-CS\
WAIT\
RAM-CS\
IO-CS\
LCDC-CE2\
LCDC-CE1\
OP-RES\
OP-RES\\
OCSW\
TH
PD
XL\
YL\
XH
OP-POF
READY\
AUD\
PNC-a\
KEYIN\
EX-DSR\
EX-RXD\
OP-TXD\
OP-CLK\
OP-RES
OP-RES\\\
OP-LRQ\
OP-RDY\
OP-RXD\
EX-DTR\
EX-TXD
DATA
EX-CLK\\
EX-CLK\\
YH
 RY/BY\
LATCH
VDD-ON
COPY\
CA\
PNC\
TC\
F0\
F1\
F2\
F3\
ICUFM\
F7\
F4\
SWon
Yon
Xon
A20
OP-POF\
A20
OP-POF\
SWon
Xon
Yon
OP-RES\
(HD6413003TF)
(1/4W)
BR224
BR226
1.2K*3
2.2K*3
BR226
1.2K*1
BR248
1.2K*4
CN105-9
CN204-11
CN103-7
CN203-2
CN203-3
CN203-4
CN203-1
CN101-9
CN104-4
CN104-5
CN104-12
1000pF*3
CN103-5
CN103-8
CN103-3
CN103-6
CN103-1
CN103-2
CN103-4
CN104-2
CN104-3
CN104-1
CN104-10
CN101-6
CN101-7
CN101-2
BR225
2.2K*3
CN204-9
CN205-7
CN205-6
CN101-3
CN101-4
CN101-8
CN205-2
CN204-7
CN205-8
CN205-5
CN204-8
BR247
10K*4
10K*4
10K*4
10K*4
10K*4
10K*4
10K*4
BR233
BR232
BR228
BR235
BR234
BR229
BR231
BR237
BR236
BR230
10K*4
10K*4
10K*4
10K*4
100pF*3
BR249
10K*4
BR250
10K*4
BR238
10K*4
BR240
68K*4
(5-6A)
(5-4B)
(5-6B)
(5-4B)
(5-4B)
(5-4B)
(5-4B)
(1-4C)
(1-4C)
(1-4C)
(2-5D)
(3-8C)
(1-4C)
(1-5D)
(1-2B)
(3-8A)
(2-7C)
(3-8A)
(2-7B)
(3-8B)
(3-8B,2-6B,2-7B,2-8C)
(2-7C,2-6B,3-8B)
(5-6C)
(5-6B)
(5-6B)
(5-6B)
(1-7B)
(2-8C)
(2-7B)
(1-6A,2-8C)
(1-7A)
(1-7A)
(1-7A)
(2-4C)
(5-6C)
(5-6C)
(5-6B)
(5-6C)
(5-6B)
(5-6B)
(5-6C)
(5-6B)
(5-6B)
(5-6B)
(5-6B)
(4-7C)
(2-6B)
(3-8B)
(3-8B)
(5-4B)
(5-4A)
(5-4A)
(5-6D)
(5-6D)
(5-6C)
(1-7B)
(3-8A)
(5-4B)
(5-6C)
(5-6C)
(5-6D)
(5-4A)
(5-4A)
(5-4B)
(5-4B)
(5-4A)
CN205-4
(2-6C)
(2-5D)
(2-5D)
(3-8D)
(3-8D)
14
 7
 
K
 
K
 A1  A2  A1  A2
 K1  K2  K1  K2
 
A
 
A
 K
 K
 A
 A
 K1  K2
 K1  K2
 A1
 A2
 A1
 A2
 A1  A2
 K
BR225
2.2K*1
BR227
1.2K*1
BR224
2.2K*1
BR227
1.2K*3
1/5
335-C29.DSF
[5] OP CONTROL PWB
(3-N1258FC)
: Not mounted
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