Kyocera FS-6020 - Main PWB

FS-6020
2-3-11
2-3-3 Main PWB
YC6
YC4
Parallel interface
X’ tal(Video)
X’ tal(System)
PNSTROBE,PNAUTOFD,
PNINIT
PNACK,PBUSY,PPERROR,
PSELECT,PFAULT
DBTXD
DBRXD,DBCLK
VXIN
VXOUT
CXIN
CXOUT
PPDATA7-0
PDATA7-0
EBIU data bus
EBIU address bus
SDRAM data bus
3.3 V regulator
+5V1 +3.3V1
SDD31-0
EBD31-0
DIMM
(Code ROM)
EBA22
EBCSN0,EBC SN1,
EBOEN0,EBWEN0
EBD31-0
Serial interface
Debugger
DTR,RTS,TXD
CTS,DSR,RXD
RSSEL
P1284DIR
U1
PowerPC 200 MHz
RISC processor
(Core ASIC)
YS1
X2
X3
U12
U15
Font
mask ROM
U3
EBCSN0,EBOEN2
EBA21-1
KUIO-LV(3.3V)
EBA15-1
OPRDY, DMAACKN,IORN,
IOWN, EBCSN4
DMAREQ,OPACKN, OPIRN
Expansion
memory
slot
(DIMM)
EEPROM
SDRAM address bus
SDCSN0
SDCSN1-2
SDD31-0
SDA12-0
SDA12-0
SDA12-0
SDD15-0
U10
SDRAM
RASN,CASN,WEN,BA1,BA0,SDCLKE
IICSCL
IICSDA
YC1
YS2
YC18
YC5
YC7
SDCLK
PNSELIN
25.00000 MHz
28.0845MHz
APC PWB
PD PWB
Polygon motor
Eraser
YC10
EBD31-16
EBD31-16
VDFONSPL,VDATAP,VDATAN
SDCLK
NSELIN
U9
OUTPEN
EDB31-16
EBA22,EBA10-1
OPRSTN
Operation
panel PWB
YC17
FPRSTN
FPCLK
FPDIR
FPDAT
YC2
USB interface
USBDP
USBDN
U11
SDRAM
SDD31-16
SDA12-0
API
ROM socket
U4
VBUS
USBINIT
Q2
Digital transistor
Digital transistor
X’ tal(USB)
48MHZIN
X1
48.00000MHz
EBD31-16
EBA21-1
EBCSN1,EBOEN2
DQMUU,DQMUM
DQMLM,DQMLL
Q1
Engine/high
voltage PWB
Engine/high
voltage PWB
U2
5 V regulator
+24V2 +5V2
U14
Memory card
YC3
Hard disk
EDB31-24
EDB23-16
CDD7-0
CDD15-8
U6
U7
EBA22,EBA10-1
EBOEN1,EBWEN1
CDET11,CDET12,CDRST1
CDET21,CDRST2
EBCSN1 CDCSN1
CDCSN2
CDCSN1
CDCSN2
EBA21-20
CDWAITN1
CDWAITN2
U8
U16
74LV32A
74AHC08
CDWAITN
YC12
EGSO,PDMASKN,SBSY,SDIR,EGIRN
EGSI,SCKN
YC9
ERDEADN2,ERDEADN1
ERASER
POLRDYN
POLONN
YC8
POLONN
RESETN
MIDDRN
FEDDRN
MPFSOL
REGDRN
YC13
YC14
YC15
YC16
YC11
U13
Registration clutch
MP tray feed solenoid
MP tray feed clutch
Middle feed clutch
Figure 2-3-9 Main PWB block diagram
The main PWB consists mainly of CPU (U1) and primarily performs the printing data processing and interface controls with
computers. The CPU (U1) outputs the laser light and executes printing following the code ROM (YS1) that stores the control
programs being linked with the process and paper conveying mechanism that the engine/high voltage PWB controls.