Read Sharp AR-PB9 (serv.man2) Service Manual online
[5] ELECTRICAL SECTION
1. Block diagram
A. Overall block diagram
CPU
IDT
RV4650
133MHz
DRAM
On
board 8MB
Chipset
ASIC
Pegasus
SYSCMD[8:0]
SYSAD[63:0]
SYSAD[31:0]
RAD[21:1]
Code
ROM(1)
RAD[21:0]
SYSAD[31:0]
BOOT
ROM(1)
RAD[21:0]
SYSAD[31:0]
ROMCS3
ROMCS0
ROMCS[3:0]
I/F
ASIC
PARA CONN
RAD[21:0]
SYSAD[15:0]
PIACS0
USS725
USB to
IEEE1284 Bridge
USB CONN
M66236FP
Video
CONN
PLL
IC
CY2292
VFCLK
=13.98MHz
UCLK=14.318MHz
MasterCLK=44.44MHz
MODECLK
MODEIN
14.31818MHz
168pin
DIMM
SLOT
MD[63:0]
MA[11:0]
RAS/CAS
22.22MHz
MA[11:0]
MD[63:0]
RAS/CAS
MA[11:0]
MD[63:0]
RAS/CAS
EEPROM
(CPWBF0057QS51)
(CPWBX0038QS**)
(CPWBX0056QS**)
AR-PB9
5 – 1
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