Sharp AR-NB2A (serv.man2) Service Manual ▷ View online
AR-NB2A ELECTRICAL SECTION 7 - 1
[7] ELECTRICAL SECTION
TMPR4927TB
PCIC
EBIF
SDRAMC
EBUSC
100MHz/64bit
System
BUS
256Kbit
Serial
EEPROM
Tx49Core
G-Bus
Bridge
IM-Bus
ADDR[19:0]
DATA[63:0]
MEMA[14:5]
CPUCLK
=
200MHz
OSC
25MHz
MEMD[15:0]
MEMD[31:16]
4Pin
Connector
(RS-232C
Connector)
PCI
Connector
Ethernet
Connector
USB
Connector
UARTCh1
DP83816
(MAC/PHY)
USB2.0
ISP1561
33MHz/32bit
PCI
BUS
RTC
12MHz
32.768KHz
PIO
LCX14
On
Board
64MB
SDRAM0
(H)
256Mbit
SDRAM0
(L)
256MB(Max)
256Mbit
SPD
SDRAM1
SO_DIMM
MEMD[63:0]
AHCT125
LCH
LD[31:0]
LCX245
Flash
SO-DIMM
slot012MB
or16MB
3.3V
LA[20:0]
LD[31:0]
LCX244
BUSSPRT
MEMD[31:0]
Flash
SO-DIMM(Mask
ROM)
slot232MB
ACE
LCX373
LD[31:0]
Flash
SO-DIMM
slot18MB
IRC
UART
LVC125
1.
BLOCK
DIAGRAM
5
5
4
4
3
3
21
21
D
D
C
C
B
B
A
A
1/16
AR-NB2A ELECTRICAL SECTION 7 - 2
R37
10K
TP742
TP712
R36
10K
TP395
TP713
TP714
R35
10K
R304
10K
TP743
TP710
TP656
TP736
TP744
R249
1K
TP381
TP
AD33
1
R248
1K
TP745
R247
1K
TP746
TP747
R296
1K
TP639
TP748
R297
1K
IC1A
TMPR4927/4937
TDI/
DI
N
T
C1
1
TCK
B1
1
TMS
C12
TRST
E16
RESET
K1
TPCO/TDO
B13
DCLK
B12
PCST0
A17
PCST1
C16
PCST2
B16
PCST3
A16
PCST4
C15
PCST5
B15
PCST6
E14
PCST7
C14
PCST8
B14
TPC1
E13
TPC2
D13
TPC3
C13
TEST0
K2
TEST1
L5
TEST2
L4
TEST3
L3
TEST4
L2
HAL
T
DO
Z
E
K3
BYP
ASSPLL
D5
C
G
RESET
P23
MASTERCLK
R26
SDI
N
1
E6
TCLK
E1
W
DRST
M2
TIMER0
E2
TIMER1
E3
N
MI
F
4
CTS0
H3
CTS1
J
4
IN
T0
F
3
IN
T1
F
2
IN
T2
F
1
IN
T3
G
3
IN
T4
G
2
IN
T5
G
1
RT
S
0
H2
RT
S
1
J
3
RXD0
G
4
RXD1
J
5
TXD0
H1
TXD1
J
2
SCLK
J
1
PIO0
A2
PIO1
A1
BITCLK/PIO2
B2
SDI
N
0/PIO3
B1
SDOUT/PIO4
C2
PIO5
C1
PIO6
D3
PIO7
D1
CB0/PIO8
AD3
CB1/PIO9
A
F
3
CB2/PIO10
AC20
CB3/PIO1
1
AB21
CB4/PIO12
AE3
CB5/PIO13
AE4
CB6/PIO14
AE20
CB7/PIO15
AD21
TX4927/TX4837
1/5
R298
10K
C1
0.1
uF
TP737
R288
33
TP749
R15
10K
TP750
TP
AD35
1
TP751
R16
33
TP394
TP658
R20
8.2K
R250
1K
NOASM
TP
AD27
1
R27
10K
TP650
TP
AD28
1
TP752
R290
33
TP753
R291
33
R19
8.2K
TP71
1
TP754
R292
33
TP
AD10
1
TP
AD6
1
R293
33
C
N
11
R
F
-H102TD-1
130
N
OASM
1
1
3
3
5
5
7
7
9
9
2
2
4
4
6
6
8
8
10
10
TP651
R303
10K
TP396
X1
SCO-10
25MHz
CO
N
T
1
GN
D
4
OUT
5
VDD
8
TP659
R287
1K
R14
1K
TP
AD9
1
R17
10K
TP738
R302
10K
R301
10K
TP
AD8
1
R300
10K
C2
0.1
uF
TP427
R294
1K
R295
1K
N
OA
S
M
TP652
R218
10
R289
33
R18
8.2K
TP741
TP660
R34
10K
TP
AD7
1
R22
1K
R299
10K
TP655
R24
1K
R33
10K
J
P1
T2B-S
Q
N
OASM
1
2
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
N
MI
13
,16
R
T
CDA
T
A
8
,16
DIMM
_
SCK
5
,16
C
G
RESET
13
,16
EEP
_
SCK
8
,16
W
DRST
1
3
,16
R
T
CR/
W
8
,16
DIMM
_
SDA
5
,16
R
T
CCS
8
,16
PIO
_
S
W
13
,16
VCC
W
CTL
7
,16
RXD1
6
,16
PO
N
RST
7
,9
,10
,11
,13
,15
TXD1
6
,16
HDD
_
PO
W
ER
9
R
T
CCLK
8
,16
PCII
N
TA
9
,10
,11
DB
G_
LED1
13
,16
DB
G_
LED3
13
,16
PCII
N
TB
9
DB
G_
LED0
13
,16
EEP
_
SDA
8
,16
DB
G_
LED2
13
,16
IN
T2
13
,16
CLK
10
,16
HAL
T
DO
Z
E
PIO15
<J
TA
G
CO
NN
ECT
OR
>
N
OA
S
M
N
OA
S
M
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
MAI
N
P
W
B
(TMPR4927TB_1)
2/16
2.
CIRCUIT
DIAGRAM
AR-NB2A ELECTRICAL SECTION 7 - 4
TP418
R242
33
R245
33
R243
33
TP632
C6
1000pF
C45
0.1
uF
R244
33
L1
BLM41P600S
1
2
C46
0.1
uF
BR37
33
1
2
3
4
5
6
7
8
TP633
C1
1
6
pF
N
O
ASM
IC1C
TMPR4927/4937
LOCK
C23
EEPROM
_
DI
A1
1
PCICLKI
N
P26
PCIAD0
B17
PCIAD1
C17
PCIAD2
A18
PCIAD3
B18
PCIAD4
D18
PCIAD5
A19
PCIAD6
B19
PCIAD7
C19
PCIAD8
B20
PCIAD9
C20
PCIAD10
E20
PCIAD1
1
A21
PCIAD12
B21
PCIAD13
C21
PCIAD14
E21
PCIAD15
A22
PCIAD16
C26
PCIAD17
C25
PCIAD18
D26
PCIAD19
E26
PCIAD20
E25
PCIAD21
E24
PCIAD22
E23
PCIAD23
F
26
PCIAD24
G
26
PCIAD25
G
25
PCIAD26
G
24
PCIAD27
G
23
PCIAD28
G
22
PCIAD29
H24
PCIAD30
J
24
PCIAD31
J
22
C
_
BE0
A20
C
_
BE1
B22
C
_
BE2
A26
C
_
BE3
F
23
PA
R
C22
F
RAME
B25
IRDY
A25
TRDY
D24
ST
OP
B24
ID
_
SEL
F
24
DEVSEL
C24
RE
Q
0
K25
RE
Q
1/
IN
TO
U
T
L22
RE
Q
2
L24
RE
Q
3
M24
GN
T0
J
25
GN
T1
K24
GN
T2
L25
GN
T3
M25
PERR
B23
SERR
D22
M66E
N
D20
PME
N
22
EEPROM
_
DO
A12
EEPROM
_
CS
A15
EEPROM
_
SK
A14
PCICLK0
H26
PCICLK1
J
26
PCICLK2
K26
PCICLK3
L26
PCICLK4
M26
PCICLK5
N
26
TX4927/TX4937
3/5
BR30
33
1
2
3
4
5
6
7
8
R87
1
0K
R70
10
TP634
R90
56
TP
AD21
1
TP412
TP
AD20
1
C12
0.1
uF
C27
0.1
uF
BR39
33
1
2
3
4
5
6
7
8
C4
10uF
TP397
ICT31
TP361
C29
0.1
uF
TP
AD19
1
TP661
L3
BLM41P600S
1
2
R79
8.2K
C30
0.1
uF
TP364
R230
33
C31
0.1
uF
R72
10
C25
0.1
uF
R78
8.2K
R71
10
R91
56
R231
33
BR41
33
1
2
3
4
5
6
7
8
C26
0.1
uF
C14
0.1
uF
C24
0.1
uF
C7
1000pF
R94
56
R81
8.2K
TP413
TP631
R232
33
TP406
C28
0.1
uF
C9
10uF
R95
56
TP371
R233
33
C32
0.1
uF
TP414
TP409
R83
8.2K
C15
0.1
uF
C35
0.1
uF
C13
0.1
uF
R96
1
20
TP363
BR42
33
1
2
3
4
5
6
7
8
R73
10
R234
33
TP41
1
C8
0.1uF
R84
8.2K
L4
BLM41P600S
1
2
R237
33
BR32
33
1
2
3
45
6
7
8
TP417
TP370
C36
0.1
uF
L2
BLM41P600S
1
2
R235
33
TP416
R85
8.2K
TP3
1
R236
33
C33
0.1
uF
R88
0
C34
0.1
uF
TP407
C16
0.1
uF
R82
8.2K
R74
10
C214
10
uF
C19
0.1
uF
R86
3
3
C215
10
uF
C17
0.1
uF
C18
0.1
uF
TP408
IC1D
TMPR4927/4937
PLL1VDD
_
A
R24
PLL1VSS
_
A
R25
PLL2VDD
_
A
P24
PLL2VSS
_
A
P25
VDDIO
A24
VDDIO
B5
VDDIO
C3
VDDIO
C9
VDDIO
C18
VDDIO
D12
VDDIO
D14
VDDIO
D16
VDDIO
D19
VDDIO
D21
VDDIO
D25
VDDIO
E4
VDDIO
E7
VDDIO
F
22
VDDIO
F
25
VDDIO
H4
VDDIO
H25
VDDIO
M3
VDDIO
M23
VDDIO
N
5
VDDIO
N
23
VDDIO
P5
VDDIO
R4
VDDIO
T4
VDDIO
T24
VDDIO
U24
VDDIO
V3
VDDIO
V4
VDDIO
V22
VDDIO
W
23
VDDIO
Y22
VDDIO
AA3
VDDIO
AB7
VDDIO
AB23
VDDIO
AC5
VDDIO
AC8
VDDIO
AC9
VDDIO
AC13
VDDIO
AC14
VDDIO
AC15
VDDIO
AD1
VDDIO
AE2
VDDIO
AC16
VDDIO
AE21
VDDIO
AE24
VDDIO
AE26
VDDIO
A
F
9
VDDIO
A
F
11
VDDIO
A
F
20
VDDIO
A
F
23
VDDI
N
D4
VDDI
N
D8
VDDI
N
D10
VDDI
N
D15
VDDI
N
D17
VDDI
N
D23
VDDI
N
F
5
VDDI
N
G
5
VDDI
N
H23
VDDI
N
K4
VDDI
N
K23
VDDI
N
M4
VDDI
N
P22
VDDI
N
R23
VDDI
N
U4
VDDI
N
U23
VDDI
N
W
4
VDDI
N
AC4
VDDI
N
AC10
VDDI
N
AC12
VDDI
N
AC17
VDDI
N
AC19
VDDI
N
AC23
VSS
A13
VSS
A23
VSS
B26
VSS
D2
VSS
D6
VSS
D9
VSS
E5
VSS
E8
VSS
E10
VSS
E12
VSS
E15
VSS
E17
VSS
E18
VSS
E19
VSS
E22
VSS
H5
VSS
H22
VSS
J
23
VSS
K5
VSS
K22
VSS
L23
VSS
M5
VSS
M22
VSS
N
4
VSS
N
24
VSS
P2
VSS
P4
VSS
R5
VSS
R22
VSS
T1
VSS
T26
VSS
U5
VSS
U22
VSS
U26
VSS
V1
VSS
V2
VSS
V24
VSS
W
3
VSS
W
5
VSS
W
22
VSS
W
24
VSS
Y3
VSS
AA4
VSS
AA23
VSS
AB5
VSS
AB8
VSS
AB10
VSS
AB12
VSS
AB13
VSS
AB14
VSS
AB15
VSS
AB17
VSS
AB19
VSS
AB22
VSS
AB24
VSS
AB26
VSS
AC2
VSS
AC3
VSS
AC6
VSS
AC21
VSS
AC24
VSS
AD4
VSS
AD5
VSS
AD8
VSS
AD9
VSS
AD1
1
VSS
AD19
VSS
AD20
VSS
AD23
VSS
AE12
VSS
AE14
VSS
AE18
VSS
AE23
VSS
A
F
1
VSS
A
F
5
VSS
A
F
10
VSS
A
F
16
VSS
A
F
18
VSS
A
F
26
TX4927/TX4937
4/5
C38
0.1
uF
BR29
10K
1
2
3
4
5
6
7
8
6
7
8
R80
8.2K
BR31
33
1
2
3
4
5
6
7
8
C20
0.1
uF
C21
0.1
uF
R75
10
C43
0.1
uF
C39
0.1
uF
R238
33
TP369
IC1E
TMPR4927/4937
VSS
K10
VSS
K1
1
VSS
K12
VSS
K13
VSS
K14
VSS
K15
VSS
K16
VSS
K17
VSS
L10
VSS
L1
1
VSS
L12
VSS
L13
VSS
L14
VSS
L15
VSS
L16
VSS
L17
VSS
M10
VSS
M1
1
VSS
M12
VSS
M13
VSS
M14
VSS
M15
VSS
M16
VSS
M17
VSS
N
10
VSS
N
11
VSS
N
12
VSS
N
13
VSS
N
14
VSS
N
15
VSS
N
16
VSS
N
17
VSS
P10
VSS
P1
1
VSS
P12
VSS
P13
VSS
P14
VSS
P15
VSS
P16
VSS
P17
VSS
R10
VSS
R1
1
VSS
R12
VSS
R13
VSS
R14
VSS
R15
VSS
R16
VSS
R17
VSS
T10
VSS
T1
1
VSS
T12
VSS
T13
VSS
T14
VSS
T15
VSS
T16
VSS
T17
VSS
U10
VSS
U1
1
VSS
U12
VSS
U13
VSS
U14
VSS
U15
VSS
U16
VSS
U17
TX4927/TX4937
5
/5
C23
0.1
uF
R241
33
C22
0.1
uF
R239
33
R76
10
C41
0.1
uF
R240
33
BR33
33
1
2
3
4
5
6
7
8
C42
0.1
uF
C37
0.1
uF
TP415
C40
0.1
uF
TP365
R89
0
TP393
C44
0.1
uF
C47
0.1
uF
TP410
C5
0.1uF
TP390
BR35
33
1
2
3
4
5
6
7
8
C48
0.1
uF
TP362
R77
10
PCIAD0
PCIAD2
PCIAD1
PCIAD3
PCIAD7
PCIAD5
PCIAD4
PCIAD6
PCIAD1
1
PCIAD10
PCIAD9
PCIAD8
PCIAD15
PCIAD13
PCIAD14
PCIAD12
PCIAD19
PCIAD16
PCIAD18
PCIAD17
PCIAD23
PCIAD22
PCIAD20
PCIAD21
PCIAD26
PCIAD24
PCIAD27
PCIAD25
PCIAD30
PCIAD31
PCIAD29
PCIAD28
PCIADA4
PCIADA30
PCIADA20
PCIADA5
PCIADA7
PCIADA16
PCIADA19
PCIADA31
PCIADA3
PCIADA12
PCIADA0
PCIADA1
1
PCIADA21
PCIADA25
PCIADA27
PCIADA18
PCIADA26
PCIADA6
PCIADA29
PCIADA10
PCIADA13
PCIADA9
PCIADA28
PCIADA15
PCIADA2
PCIADA17
PCIADA1
PCIADA24
PCIADA14
PCIADA22
PCIADA8
PCIADA23
PCIADA3
PCIADA1
PCIADA2
PCIADA0
PCIADA6
PCIADA4
PCIADA5
PCIADA7
PCIADA8
PCIADA9
PCIADA10
PCIADA1
1
PCIADA12
PCIADA14
PCIADA13
PCIADA15
PCIADA17
PCIADA18
PCIADA16
PCIADA19
PCIADA21
PCIADA20
PCIADA22
PCIADA23
PCIADA25
PCIADA27
PCIADA24
PCIADA26
PCIADA28
PCIADA29
PCIADA31
PCIADA30
PCIBE0
PCIBE1
PCIBE2
PCIBE3
PCIBEA3
PCIBEA1
PCIBEA1
PCIBEA2
PCIBEA0
PCIBEA3
PCIBEA0
PCIBEA2
VCCIO
VCCI
N
T
PVDD1
PVDD2
VCCIO
VCCI
N
T
VCCI
N
T
VCCIO
VCCIO
VCCIO
PCIBE[3:0]
9
,10
,11
PTRDY
9
,10
,11
PCIRE
Q
1
10
,15
PCIRE
Q
2
9
,15
PDEVSEL
9
,10
,11
PPERR
9
,10
,11
PCI
GN
T1
10
,15
PME
10
,11
,16
PIRDY
9
,10
,11
PCI
GN
T0
11
,15
P
F
RAME
9
,10
,11
PST
O
P
9
,10
,11
PSERR
9
,10
,11
PCI
GN
T2
9
,15
PP
AR
9
,10
,11
PCIRE
Q
0
11
,15
PLOCK
9
PCICLK2
9
PCICLK0
1
1
,16
PCICLK1
1
0
,16
PCIBEA[3:0]
16
PCIAD[31:0]
9
,10
,11
PCIADA[31:0]
16
PVSS1
PVSS2
MAI
N
P
W
B
(TMPR4927TB_3)
5
5
4
4
3
3
21
21
D
D
C
C
B
B
A
A
4/16
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