Kyocera FS-1010 Operation of circuit Boards Main board, Main board circuit block diagram

4-3-2 Operation of circuit		boards
(1) Main board
		Q01				YC03	USB I/F
Operator panel I/F
		Digital Transistor
			USBINT
YC08
			USBDP
FPRSTN
			USBDN
FPCLK
FPDIR			VBUL
FPDAT
			Q02
			Digital Transistor		YC02
		EBA22, EBA10-1
YC07 APC I/F						EDB31-16
		EBCSN2, EBCSN3			Option
OUTPEN					Memory
		EBOEN1, EBWEN1
LONB					card
		CDWAITN, CDET1-2
VDFONSPL					slot
		CDRST
PDN
				YS01
YC06			EBA22-2	System DIMM
Engine I/F		EBCSN0, EBCSN1			Slot 1
		EBOEN0, EBWEN0			(Code ROM)
SCKN, SO, PLGCLK
SBSY, SI, SDIR, EGIRN, PDMASKN				U02
RSTN
		EBCSN0, EBOEN2
X02	U13	CPU	EBA21-1		Font	EBD31-16
		U01
					Mask ROM
X’tal (System)
	CXIN	PowerPC 200 MHz
25.0000 MHz		RISC processor	EBA21-1			U03
		(Core ASIC)
X03	VXIN	EBCSN1, EBOEN2				API ROM	EBD31-16
X’tal (Video)					YC01	Socket
	VXOUT
26.701882 MHz		OPRSTN
		OPRDY, DMAACKN, IORN,			Option I/F
X01		IOWN, EBCSN4
		DMAREQ, OPACKN, OPIRN			KUIO-LV (3.3 V)
X’tal (USB)
	48MHZIN
			EBA15-1			EBD31-16
48.0000 MHz
	U11	EBIU Address bus
YC04 Parallel I/F				EBIU Data bus		EBD31-0
PNSELIN	NSELIN		DQMLM, DQMLL
PNSTROBE, PNAUTOFD,			DQMUU, DQMUM				U07
			RASN, CASN, WEN, BA1, BA0, SDCLKE
PNNIT
		IICSCL
PNACK, PBUSY, PPERROR							IIC
		IICSDA					EEPROM
PSELECT, PFAULT
PPDATA7-0	PDATA7-0	SDCSN0	SDRAM Address bus		SDA12-0		YS02
Option serial I/F	P1284DIR	SDA12-0	U04	SDD15-0
							Option
YC05						SDA12-0
DTR, RTS, TXD			SDRAM				SDRAM
		SDCSN0					DIMM
CTS, DSR, RXD
						SDD31-0	Slot
RSSEL
						SDCLK
[Debugger connector]			U05
				SDD31-16
YC09		SDA12-0	SDRAM
DBTXD
DBRXD, DBCLK
U9			SDCSN1-2		SDCLK
3.3 V Regulator
+5 V1	+3.3 V1	SDRAM Data bus		SDD31-0

Figure 4-3-2 Main board circuit block diagram

FS-1010

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