Read Sharp UP-X500 (serv.man4) Service Manual online
UP-X500U
CIRCUIT DIAGRAM
7 – 21
reset_lan#
+3B
+3B
+3B_LAN
+3B_LAN
+3B
+3B_LAN
VCC2.5
VCC2.5
VCC3
+3B
+3B_LAN
+3B
+3B
+3B
VCC3
RSMRST#
18
LED_LAN#
32
LED_LAN_TEST#
18
SouthBridge
(9/10)
EEPROM
LAN
PHY
CLOCK
LAN
I/F
RESET
VCC3
LED
LED
R250
33
1
2
BR107
33-4
1
8
2
7
3
6
4
5
C694
0.1UF
2
1
R376
10K(+-1%)
1
2
R239
10K
1
2
R255
33
1
2
R241
10K
1
2
R254
33
1
2
R244
10K
1
2
CN37
J0026D21
LEFT-A
9
LEFT-K
10
RIGHT-A
12
RIGHT-K
11
RD+
7
TD+
1
CT1
3
TD-
2
CT2
6
RD-
8
GND
4
GND
5
IC5H
VT8235_South_Bridge
MCRS
B13
MCOL
C13
MTXENA
B12
MTXD0
C12
MTXD1
A11
MTXD2
B11
MTXD3
C11
MTXCLK
A12
MRXERR
A10
MRXCLK
B10
MRXDV
C10
MRXD0
E10
MRXD1
D10
MDRXD2
D9
MRXD3
A9
MDCK
C9
MDIO
B9
EECS
A13
EEDO
A14
EEDI
B14
EECK
C14
RAMVCC
E7
RAMGND
E8
PLLVCC
P22
PLLGND
P23
C501
0.1UF
2
1
R373
10K
1
2
C493
1UF(2125)
2
1
R371
0
1
2
C772
0.1UF
2
1
93C46F-1
IC38
AT93C46-10SC-2.7
CS
1
SK
2
DI
3
DO
4
VCC
8
NC
7
NC
6
GND
5
C497
0.1UF
2
1
R243
49.9(+-1%)
1
2
C771
0.1UF
2
1
R372
0
1
2
R242
49.9(+-1%)
1
2
C498
0.1UF
2
1
C491
0.1UF
2
1
R452
10K
1
2
FB50
ACB1608L-030
F
1
B
2
C496
0.1UF
2
1
IC37
VT6103
INT#/PHYAD0
25
LED0/TEST#
26
LED1/SPD100
27
LED2/DUPLEX
28
LED3/NWAYEN
29
PD#
30
VDDRX
31
RX-
32
RX+
33
SD/FXEN
34
GNDRX
35
GNDPLL
36
REXT
37
VDDPLL
38
GNDTXC
39
TX-
40
TX+
41
VDDTX
42
GNDTX
43
GNDOSC
44
XO
45
XI
46
VDDOSC
47
RST#
48
VDD2
24
GND2
23
CRS/RPTR
22
COL/SYMB
21
TXD3
20
TXD2
19
TXD1
18
TXD0
17
TXEN
16
TXC
15
TXER
14
VDDC
13
GNDC
12
RXER/ISO
11
RXC
10
RXDV/BYPOSC
9
GND1
8
VDD1
7
RXD0/PHYAD4
6
RXD1/PHYAD3
5
RXD2/PHYAD2
4
RXD3/PHYAD1
3
MDC
2
MDIO
1
C695
0.1UF
2
1
R252
49.9(+-1%)
1
2
R251
49.9(+-1%)
1
2
C499
0.1UF
2
1
C696
0.1UF
2
1
R370
100
1
2
C490
22PF
2
1
C495
0.1UF 2
1
C494
22PF
2
1
R247
6.49K(+-1%)
1
2
X4
25MHz(DSX840GA)
C492
0.1UF
2
1
R245
33
1
2
FB51
ACB1608L-030
F
1
B
2
BR106
33-4
1
8
2
7
3
6
4
5
FB52
ACB1608L-030
F
1
B
2
IC100D
74LVA08(TSSOP)
12
13
11
14
7
R257
10K
1
2
R238
33
1
2
C503
0.1UF
2
1
R237
1.5K
1
2
R240
33
1
2
C504
10UF(3216)
2
1
C500
0.1UF
2
1
R246
33
1
2
FB63
ACB1608L-030
F
1
B
2
C502
0.1UF
2
1
F17
ICP-S1.0
C693
0.1UF
2
1
R256
0
1
2
R248
33
1
2
R258
2(+-1%)
1
2
R249
33
1
2
R527
0
1
2
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
21/33
South LAN I/F
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