Main Board Kp-858 For Fs-3800/3800N Models - Kyocera FS-1800 Service Manual

Main board KP-858 for FS-3800/3800N models

CSN [1:0],
OEN0,
WEN0
U03-U05
LA [22:2]
Address
Latch
ALATCH
CPUA [31:0]
U01
CPUD [31:0]
CPU
PowerPC740
200 MHz
BCLK, BGN,
TAN, TEAN,
RSTOUTN, CPUINTN,
DBGN, AACKN
ABBN, DBBN, TBSTN,
TSIZ [2:0], TT1, TT3
X01
50.0000 MHz
X02
25.76930 MHz
U10, U11
SDA [12:0], SDBA [1:0]
SDD [31:0]
SDRAM
SDCLK, SDCKE,
Expanding
SDCSN [5:0],
SDRAM
YS02 SDRAS, SDCAS,
(DIMM)
Expanding
DQMUU, DQMUM,
SDRAM
YS03 DQMLM, DQMLL
(DIMM)
IICSDA, IICSCL
SCLK, SI, SO, SDIR, BD,
ENGIRN, SBSY, VDFON,
VDOUTP, VDOUTN,
FPDIR, FPCLK, PFDAT
YC07 YC01
2nd Optional Engine
Interface
Board
Figure 4-3-5 Main board KP-858 circuit block diagram
YS01
PVIDEO [7:0], BD, FSYNC, RSTOUTN
System
DIMM
[board]
ROMA [4:2]
CPUD [31:0]
U02
ASIC
X'tal
X'tal
SDWEN,
U22T U31
AND NAND
U17
Centronics
Buffer
YC02
Parallel
Interface
XLIDATA, SRCCLKN
U06-U07
Buffers
ROMA1
LA [21:2]
LD [15:0]
LA22,
LA [11:2]
LD [15:0]
LA [16:2]
LD [15:0]
XTXD,
YC05
XDTR,
P1284HD,
XRTS,
ACK,
XDSR,
BUSY,
XCTS,
PERROR,
XRXD,
SELECT,
RSSEL
FAULT,
U18,
P1284DIR,
U19E
SELECTIN,
STROBE,
Serial
AUTOFD,
Driver
INIT,
P1284DIR
YC03
Serial
Interface
4-27
U16
Image
chip
LA [3:2]
CPUD [31:24]
CPUD [15:0]
EXTBOEN,
EXTDIR
U08, U09S
FONTs
YC06
CFCSN1, CFCSN2,
CFOEN2,
Option
CFWEN2,
hard disk
CDET2A, CDET2B,
(Microdrive)
CFRST2,
CFWAITN2
YC04
KUIOCSN1
IORN1, IOWN1,
OPRDY1,
KUIO
DMAACKN1
OPRST1,
IODTACKN1,
OPIRN1,
DMAREQ1
U12-U15
EXTBOEN,
Buffers
CFOEN1
CFD [15:0]
CFCSM1, CFCSN2,
Option
CFOEN1, CFWEN1,
memory card
CDET1A, CDET1B,
(CompactFlash)
CFRST1, CFWAIT1
+5 V +5 V
+3.3 V
U20
Regulator
+5 V +5 V
+3.3 V
U24
Regulator
FS-1800/1800N | FS-3800/3800N
CSN2,
OEN0,
WEN0
CSN [3:2]
,
OEN1,
(WEN0)
+2.5 V
U21
Regulator
+3.3 V
U28
Regulator