Sharp AR-P350 / AR-P450 (serv.man7) Service Manual ▷ View online
CPU Block
CPU
TMPR4955AF
200Mhz
IC19
160pin-QFP
CN10
Regulator
IC8
3.3V(I/O)
5V
1.5V(Core)
OSC
X3
66.666Mhz
Clock buffer
IC9
Reset IC
PST598DN
IC43
Reset IC
PST598IN
IC44
3.3V
5V
System
Controller
IC18
PONRST
COLDRST
CPURST
3_EXTRQST
NMI, INT0*
I/O G/A
IC30
INT1*,INT2*,INT3*
SysCMD[8:0], SysAD[31:0]
Address
Buffer
IC12, 20
LA[22:2]
LCX16245
IC15, 23
MEMD[31:0]
SysAD[54:32]
Flash DIMM
CN3,4,5
Mask DIMM
CN6
JTAG
CN8
TDI, TMS, TDO ,TCK, TRST*
& !"#$%
ROM Block ( Flash & Mask )
System
Controller
IC18
456pin-
BGA
I/O G/A
IC30
240pin-
QFP
Address
Buffer
IC12, 20
LA[22:2]
LCX16245
IC15, 23
MEMD[31:0]
SysAD[31:0]
SysAD[54:34]
DIMM Slot
CN3:8MB-Flash
CN4:8MB-Flash
CN5:8MB-Flash
CN6:32MB-Mask
(PS Kanji)
EX:CN3,4
JP:CN3,4,5,6
3.3V
GND
VCCW
CODECS0*
CODECS1*
CODECS2*
CODECS3*
FONTCS0*
FONTCS1*
FONTCS2*
FONTCS3*
FONTCS4*
FONTCS5*
FONTCS6*
FONTCS7*
ROMBUFOE*
ROMBUFDIR*
FMCS8:CN3
FMCS10:CN4
FMCS12:CN5
FMCS0:CN6
FMCS2:CN6
FMCS4:CN6
FMCS6:CN6
!"#$%
SDRAM Block ( Standard & Option )
System
Controller
IC18
456pin-
BGA
SDRAM
IC1, 2,3,4
64Mbit x 4
MD[63:0]
MAA[12:0]
DIMM Slot
CN1
(64,128,256MB)
OSC
X3
66.666Mhz
Clock
buffer
IC9
SDA,SCL
SDQMA[7:0]
MWE
MCS0
MRASA
MCASA
BSEL0A,1A
CKEA
MWE
MCS1A,2A
MRASA
MCASA
BSEL0A,1A
CKEA
DRCLK
MEMCLK0
MEMCLK1,2,3,4
' !"#$%
PCI Block ( ICU & Option )
System
Controller
IC18
456pin-BGA
PCI-Bus
ICU ASIC
IC24
304pin-QFP
PM2500
IC13
160pin-QFP
OSC
X2
40.57Mhz
Selector
IC14
OSC
X4
31.554Mhz
OSC
X1
66.66Mhz
OSC
X5
66.66Mhz
CN10
LVDS IC17
Buffer IC7
CN7
CN9
JCI-NIC
(100Base-T)
HDD-PWB
(2.5inch HDD)
SDRAM
IC25
8MB
( !"#$%
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