Text preview for : 10_Block Diagram.pdf part of Samsung CLP-500 Samsung CLP-500 Service Manual



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Pa n e l
16x2 LCD 5pin, UART 32bit

10

10. Block Diagram

Samsung Electronics

SDRAM
64MB + Option Memory

IEEE1284

SPGPm
60MHz EEPROM

RS232C

UART

f or Debugg ing

16bit

Analog MUX

USB 2. 0

LSU

-

TEMP.(2 EA) Fusing Temp. HVPS x 3 CTD To ner(resistance) X 4 ITB & OPC key Waste Toner Waste Agitator

NPC

16bit Mot or

Op tional

Full Func tion

LPEC1
Color ASIC

* Total : 15 input

Flas h Memory

8~ 16bit

HVPS
PWM c on trol

BLOCK DIAGRAM

Service Manual

2MB

32bit

10-1

10-2

PC
Sts, Cmd, Clk, Rdy

Video Controller
SCF Optional
PDO~PD7 BLDC_OPC & ITB BLDC MAIN

BLOCK DIAGRAM

Service Manual

+5V, +3.3V, +24V, +24VF
POWER CORD

SMPS

IEEE1284

HIC Super1284

IEEE1284 Parallel

F
nRD, NWR, nNPC_CS, nWait, nNPC_INT

Motor
T1 T2 SUPPLY Supply Seal Bias CHARGE Zener

Fan Fuser

HVPS

NPC Opt D16~D31 A3~A15

NPC Optional Full

NPC Optional Board

SPGPm
ARM946ES Embedded
nRD, nWR, nEPLD_CS, nRESET A_Read Cha, T1, T2 En_CTD AN_CTD nVDO ENB T2, Deve

PWM AC_Vpp, T1, T2 Charge, Deve, AC

USB 2.0

USB 2.0

USB

CTD Sensor
nVDO_LSU, nLDon, nSH, nHsync, nSart, nRDY, nClk

OSC 12.00 MHz
A2~A9

Flash Memory AM29LV800 x 2 2MB
D0~D31 A2~A21

LSU
nCut_Off A_Cart nS_New

Main Clock SD0~SD31 SA0~SA12 DATA 0~7

ASIC
LPEC1

OSC 19.90 MHz
CS, SK D1, D0

Video Clock

SDRAM K4S561632 x 2 64MB

Fusible Joint

Cartridge 4 y, c, m, k
Solenoid Y,C,M,K

PANEL B'D
SD0~SD31 SA0~SA12

UART 5pin

EEPROM 93C66 512bytes

Developer Drive

Clutch Y,C,M,K

7 LED SDRAM DIMM Optional 64MB, 128MB
BLDC DEVE

Samsung Electronics

7 KEY

Motor