Kyocera FS-1900 - Main Board; Operation of Circuit Boards

4-26
FS-1900
4-3-2 Operation of circuit boards
(1) Main board
Figure 4-3-4 Main board circuit block diagram
Q01
Digital Transistor
Q02
Digital Transistor
74LV
32A
YC06
USB I/F
USBINT
USBDN
CDD15-8 EDB31-24
EBIU Data bus
EBIU Address bus
VBUS
USBDP
EBA22, EBA10-1
EBA22, EBA10-1
CDET11, CDET12, CDRST1
CDET21, CDRST2
CDWAITN
CDCSN1
CDCSN2
EBOEN1, EBWEN1
EBCSN2 CDCSN1
EBWEN3 CDCSN2
YC08
RESETN
FPCLK
FPDIR
FPDAT
VDEONSPI
PDN
VDATAP, VDATAN
EGSI, SCKN
SCK, SO, SEL(0-2)
SLREADY
OP24V, OP5V
EGSO, SBSY, SDIR, EGIRN
X02
X'tal (System)
X'tal (USB)
X'tal (Video)
25.0000 MHz
48.0000 MHz
X03
X01
YC04
YC07
Parallel I/F
30.2394 MHz
Engine I/F
Option I/F
CXIN
VXIN
VXOUT
U2
U16
48MHZIN
PNSELIN
PNSTROBE, PNAUTOFD,
PNNIT
PNACK, PBUSY, PPERROR
PSELECT, PFAULT
PPDATA7-0
YC05
PDATA7-0
NSELIN
PDATA7-0
Option serial I/F
P1284DIR
DTR, RTS, TXD
CTS, DSR, RXD
RSSEL
YC09
DBTXD
DBRXD, DBCLK
[Debugger connector]
YC10
TDO
TDI, TCK, TMS, HALTN
RISC watch connector
U13
3.3 V Regulator
+5 V1
+3.3 V1
SDRAM Data bus
SDD31-0
SDD15-0
SDD31-16
SDCSN1-2
SDA12-0
SDCLK
SDCLK
SDD31-0
SDA12-0
SDA12-0
SDRAM Address bus
YS02
Option
SDRAM
DIMM
Slot
U11
IIC
EEPROM
IICSCL
IICSDA
SDA12-0
SDCSN0
SDCSN0
DQMLM, DQMLL
DQMUU, DQMUM
RASN, CASN, WEN, BA1, BA0, SDCLKE
OPRSTN
OPRDY, DMAACKN, IORN,
IOWN, EBCSN4
DMAREQ, OPACKN, OPIRN
EBA15-1
YC01
Option I/F
KUIO-LV (3.3 V)
EBD31-16
EBD31-0
U04
API ROM
Socket
EBD31-16
EBD31-16
EBD31-0
U03
Font
Mask ROM
EBA21-1
EBA21-1
EBCSN1, EBOEN2
EBCSN0, EBOEN2
EBA22-2
EBA21-20
EBCSN0, EBCSN1, EBOEN0, EBWEN0
YS01
System
DIMM
Slot 1
(Code ROM)
SDRAM
U09
SDRAM
U10
YC02
Option
Memory
card
slot
EDB31-16
YC03
U5
Option
Hard
disk
dirive
slot
CPU
U01
74HC
08
CDD7-0 EDB23-16
U6
PowerPC 200 MHz
RISC processor
(Core ASIC)