Operation Of Circuit Boards; Main Board - Kyocera Mita Ecosys FS-1010 Service Manual

4-3-2 Operation of circuit boards

(1) Main board

Operator panel I/F
YC08
FPRSTN
FPCLK
FPDIR
FPDAT
YC07
APC I/F
OUTPEN
LONB
VDFONSPL
PDN
YC06
Engine I/F
SCKN, SO, PLGCLK
SBSY, SI, SDIR, EGIRN, PDMASKN
RSTN
X02
X'tal (System)
25.0000 MHz
X03
VXIN
X'tal (Video)
VXOUT
26.701882 MHz
X01
X'tal (USB)
48.0000 MHz
YC04
Parallel I/F
PNSELIN
PNSTROBE, PNAUTOFD,
PNNIT
PNACK, PBUSY, PPERROR
PSELECT, PFAULT
PPDATA7-0
Option serial I/F
YC05
DTR, RTS, TXD
CTS, DSR, RXD
RSSEL
[Debugger connector]
YC09
DBTXD
DBRXD, DBCLK
U9
3.3 V Regulator
+5 V1
Q01
Digital Transistor
CPU
U13
U01
CXIN
PowerPC 200 MHz
RISC processor
(Core ASIC)
48MHZIN
U11
NSELIN
PDATA7-0
P1284DIR
+3.3 V1
Figure 4-3-2 Main board circuit block diagram
USBINT
USBDP
USBDN
VBUL
Q02
Digital Transistor
EBA22, EBA10-1
EBCSN2, EBCSN3
EBOEN1, EBWEN1
CDWAITN, CDET1-2
CDRST
EBA22-2
EBCSN0, EBCSN1
EBOEN0, EBWEN0
EBCSN0, EBOEN2
EBA21-1
EBA21-1
EBCSN1, EBOEN2
OPRSTN
OPRDY, DMAACKN, IORN,
IOWN, EBCSN4
DMAREQ, OPACKN, OPIRN
EBA15-1
EBIU Address bus
EBIU Data bus
DQMLM, DQMLL
DQMUU, DQMUM
RASN, CASN, WEN, BA1, BA0, SDCLKE
IICSCL
IICSDA
SDCSN0 SDRAM Address bus
U04
SDA12-0
SDRAM
SDCSN0
U05
SDRAM
SDA12-0
SDCSN1-2
SDRAM Data bus SDD31-0
4-19
YC03
YC02
EDB31-16
Option
Memory
card
slot
YS01
System DIMM
Slot 1
(Code ROM)
U02
Font
EBD31-16
Mask ROM
U03
API ROM
Socket
YC01
Option I/F
KUIO-LV (3.3 V)
EBD31-16
EBD31-0
SDA12-0
SDD15-0
SDA12-0
SDD31-0
SDCLK
SDD31-16
SDCLK
USB I/F
EBD31-16
U07
IIC
EEPROM
YS02
Option
SDRAM
DIMM
Slot
FS-1010