Sharp AR-M350U/M450U, AR-M350N/M450N service manual Jtag

Page 20

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Engine I/F

CPU Block

1.5V(Core)

Regulator

5V

3.3V(I/O)

CN13

Clock buffer

OSC

X3

IC9

66.666Mhz

TDI, TMS, TDO ,TCK, TRST*

JTAG

CN10

	COLDRST			5V
	COLDRST	PONRST		Reset IC
CPU	CPURST	PONRST		Reset IC
CPU	3_EXTRQST		PST598DN
	3_EXTRQST			IC47
				IC47
TMPR4955AF	NMI, INT0*	System		3.3V
200Mhz	NMI, INT0*	System		Reset IC
IC20		Controller		Reset IC
IC20		IC19	PST598IN
160pin-QFP	SysCMD[8:0], SysAD[31:0]			IC48
	SysCMD[8:0], SysAD[31:0]
	SysAD[54:33]
	Address	LA[22:2]		Flash DIMM
	Buffer			CN4,5,6
	Buffer
	IC12, 21			Mask DIMM
				Mask DIMM
				CN7	VCC_B
		MEMD[31:0]			VCC_B
	LCX16245	MEMD[31:0]
	LCX16245
	IC16, 24			SRAM
				IC55,56

						Address
						Address
INT1,INT2,INT3*	I/O G/A					Buffer				FAX I/F (CN16)
INT1,INT2,INT3*	I/O G/A					Buffer
	IC32					IC49, 50


						IC51, 52
						IC51, 52

AR-M350U CIRCUIT DIAGRAM 9-2

Image 20

Contents Product composition AR-NC5JSystem Configurations StandardAR-M350U/M450U AR-RK1AR-EF1 AR-RK1AR-DU4 AR-DU3Basic Specification Base Engine AR-M350U/M350N/M450U/M450NSpecific Function Document Feeding EquipmentOutput Equipment Printer FunctionExpanded RAM Scanner functionCopy function AMS Copy FunctionAPS Supply system table EuropeAR-SC1 AR-SC2Production number identification Environmental conditionsInstalling procedure flowchart AR-M350U Unpacking and InstallationAR-P14 installing procedure =?702#%=?702#%-+0#0&+056#..#6+10HO Maintenance System Table AR-M350U MaintenanceSelf print of set values Scanner / DspfEngine section Peripheral devices ADU22-10 Block Diagrams MFP Control PWBfor AR-M350U/M450UJtag BGA G/A BGA CN3PCI-Bus Sdram IC22, IC27 24MBCN1 =?%+4%7+6&+#4#/HO!#!$ Circuit Diagram #!$VSS EL1 IC19A CKE #!$ IC19B VDD GND #!$ ASYSCMD3 Pclkd Pclkdr SYSCMD80 IC19C Pciclki #!$ #!$