Read Sharp UP-800 (serv.man23) Service Manual online
UP-820N/820F (V)
CIRCUIT DIAGRAM
10 – 33
+
/CE
OBF
/RASS
IBF
/POFF
/WRS
/RDS
/RES0
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
/RTS
2
/DSR
2
/DTR
2
/CTS
2
TXD
2
RXD
2
/DCD
2
/CI
2
SD[0..7]
2
/CSS
/RES0
2
/WRS
2
/RDS
2
SA[0..18]
2
/POFF
2
IBF
2
/RASS
2
OBF
2
/CE
2
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
C35
C36
C37
C38
C30
R10
10K
C14
100pF
X1
1
R5
C8
100pF
X2
C19
R21
10K
X2
R4
C11
100pF
X2
C20
C21
IC1
H8/3003
HD6413003TF16
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
A11
A12
A13
A14
A15
A16
A17
A18
A19
-WAIT
P61
P62
CLK
STBY
-RES
NMI
VSS
EXTAL
XTAL
VCC
-AS
-RD
-HWR
-LWR
MD0
MD1
MD2
AVCC
VREF
AN0
AN1
AN2
AN3
AN4
AN1
AN2
AN3
AN4
P75
P76
P77
P76
P77
AVSS
A20
A21
A22
A23
A21
A22
A23
VSS
-IRQ0
CS3
CS2
CS1
CS0
CS2
CS1
CS0
TP0
TP1
TP2
TP3
PA4
PA5
PA6
PA7
TP1
TP2
TP3
PA4
PA5
PA6
PA7
VCC
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
VSS
PC0
PC1
-CS4
-CS5
PC4
PC5
PC6
PC7
-RES0
TXD0
TXD1
RXD0
RXD1
SCK0
-IRQ5
VSS
D0
D1
D2
D3
D4
D5
D6
D7
VSS
D8
D9
D10
D11
D12
D13
D14
D15
VCC
A0
A1
A2
A3
A4
A5
A6
A7
VSS
A8
A9
A10
C2
100pF
C1
1000pF
X8
TP
1
1
C16
R3
C63
10UF/10V
SW1
SW DIP-8 DSS708
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C17
R20
C15
C12
X1
CST4.91MHzMGW
R7
C39
R2
C40
C41
C42
C43
R1
10K
X8
C44
C23
C45
R
9
10K
C13
100pF
X8
R25
C24
R42
C25
R22
10K
R33
R39
C22
R26
C26
R34
C9
C27
R35
R18
R27
C28
R36
R28
R37
C4
0.1uF
R29
R8
R38
R30
C5
100pF
X8
R19
10K
X2
R31
R41
10K
X8
R32
R43
10K
X1
1
C7
330pF
R24
R6
C6
330pF
C29
C3
10uF/10V,OS
C31
C32
R23
10K
C18
C33
C10
330pF
C34
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
1/2
UP-I04EF CPU
Click on the first or last page to see other UP-800 (serv.man23) service manuals if exist.