Main Pwb - Kyocera FS-2000D Service Manual

2-3-3

Main PWB

DDR SDRAM
256 Mbit x 2
DDRCS [3:0]n, DDRRASn,
DDRCASn, DDRWEn,
DDRBA [1:0], DDRDQS [3:0],
DDRDM [3:0],
DDRCLKE [3:0],
DDRCLK/CLK# [3:0]
DDRCLK/# [3:0]
ROMCS[1:0],
ROMOE0N,
ROMWE0N
ROMCS0N
ROMOE2N
KUIOIRN, KUIODTACKN,
KUIORDY, KUIODMAREQ,
KUIODMAACKN, KUIOIORN,
KUIOIOWN, KUIORST, KUIOCSN
CF_CDET [2:1], CF_CARDRES,
CF_WAITN,
5 V
1.5 V
3.3 V
Figure 2-3-6Main PWB block diagram (30/31 ppm printer [EUR/USA model])
MDQ [31:0]
MA [12:0]
MDQ [31:0]
MA [12:0]
DDR SDRAM
100-pin DIMM
Code DIMM
Font ROM
KUIO
Memory card
USB1.1 host
Parallel
Core ASIC
Code ROM, Font ROM
KUIO LV, Ethernet
Core ASIC I/O, Debugger
2.5 V DDR SDRAM, Core ASIC I/O
1.25 V
DDR BIAS
Core ASIC
(PowerPC440 400MHz)
Transciver
EDBUS [15:0]
EABUS [22:1],
EDBUS [15:0]
EABUS [21:1],
EDBUS [15:0]
EABUS [16:2],
EDBUS [15:0]
EABUS [11:2],
30/31 ppm printer (EUR/USA model)
Parallel
PDATA [8:1], NSTROBE,
NFAULT, NINIT, SELECT,
NAUTOFD, NSELIN,
P1284DIR, BUSY,
PERROR, NACK
VBUS
USB2.0
USB2DP, USB2DN
VBUSSW
USB1DP, USB1DN
USB 1.1
USB1_OC
V_LDOUTP/N,
EG_VDFONSPL, EG_PLGCLK,
Video
EG_BDN, EG_PVSYNCST,
PO_LASERDET [1:0]
PM2040i
SCLKN, ESSO, EGSI, SBSY
Engine
SDIR, EGIRN
FPCLK, FPDIR, FPDAT,
Operation
panel
FPRSTN
DBCLK,
DBTXD,
Debugger
DBRXD
SSCG
48.0 MHz
USB
Ethernet
25.0 MHz
2F8/2F9/2GA-1
System
33.3 MHz
System
16.65 MHz
Video
36.09371 MHz
2-3-9