Read Sharp AR-NB3 (serv.man5) Service Manual online
AR-NB3
CIRCUIT DIAGRAM
7 – 1
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
1/16
TMPR4927TB
PCI
C
EBIF
SDRAMC
E
B
USC
100MHz/64bit
System B
U
S
256Kbit
Ser
ial EEPR
OM
Tx49Core
< NW
-Bo
xa6 Bloc
k Dia
gra
m >
G-Bus
Br
idge
IM-Bus
ADDR[19:0
]
D
A
T
A
[6
3:0]
MEMA[14:5]
CPUCL
K
=
200MHz
OSC
25MH
z
MEMD[15:0]
MEMD[31:1
6
]
4Pin Connecto
r
(RS-232C Connector
)
PCI
Connector
Ethernet
Connector
USB
Connector
UA
RT
Ch1
DP83816
(MAC/
PHY)
USB2.0
ISP1561
33MHz/32bit
PCI BUS
RT
C
12MH
z
32.768KHz
PIO
LCX14
On Board 64MB
SDRAM0(H)
256Mbit
SDRAM0(L)
256MB(Max)
256Mbit
SPD
SDRAM1 SO_DIMM
MEMD[63:0]
AHCT12
5
slot0 12MB or 16MB
LCH
slot1 8MB
LD[31:0
]
LCX245
Flash
SO-DIMM
3.3V
LA[20:
0
]
LD[31:0]
LCX244
B
USSP
R
T
MEMD[31:0]
slot2 32MB
Flash SO-DIMM (Mask
ROM)
AC
E
LCX373
LD[31:0]
Flash
SO-DIMM
IRC
UA
R
T
LV
C125
BLOCK DIA
GRAM
[
7 ]
CIR
CUIT
DIAGRAM
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