Read Sharp UP-X500 (serv.man4) Service Manual online
UP-X500U
CIRCUIT DIAGRAM
7 – 28
SD2
SD1
SD3
SD4
SD6
SD5
SD7
SD0
SA2
SA0
SA3
SA1
VCC
VCC
VCC3
VCC3
VCC
VCC
VCC3
VCC3
VCC3
VCC3
VCC3
SD[0..15]
16,17,27
SA[0..19]
16,17,27
XRD#
16,17,27
XWR#
16,17,27
H8_IRQ2
16
H8_IRQ1
16
PCIRST#
10,15,16,22,25
H8_RESET#
18
H8_EXCOM_CS#
16,27
POSdevice Contorol IC
ISA
interface
PCP3
H8S/2138F
(1/3)
VCC3
VCC3
VCC3
VCC3
VCC3
VCC3
IOaddress=0x590
䌾
0x59F
FB58
ACB1608L-030
F
1
B
2
IC108D
74LVA32(TSSOP)
12
13
11
14
7
IC107C
74LVA08(TSSOP)
9
10
8
14
7
IC52
HD64F2138AFA20
NMI
6
VSS
12
STBY
7
VSS2
73
HIRQ11
42
HIRQ12
44
VSS3
56
HDB7
72
HDB6
71
HDB5
70
HDB4
69
HDB3
68
HDB2
67
HDB1
66
HDB0
65
EXTAL
3
VCC1
47
XTAL
2
AVCC
29
AVSS
38
VCC2
8
IOW
16
IOR
17
CS2
75
CS1
15
HA0
74
RES
1
IC108C
74LVA32(TSSOP)
9
10
8
14
7
R378
0
1
2
C577
1000PF
2
1
X6
20MHz(CSTCE20M0V53W-R0)
2
1
3
C575
0.1UF
2
1
C576
0.47UF(2125)
2
1
C579
0.1UF
2
1
C580
1000PF
2
1
C578
10UF(3216)
2
1
IC108B
74LVA32(TSSOP)
4
5
6
14
7
IC108A
74LVA32(TSSOP)
1
2
3
14
7
JR37
0(23)
1
3
2
IC106B
74LVA04(TSSOP)
3
4
14
7
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
28/33
PCP3 (ISA I/F)
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