Samsung SCX 4200-XAA Circuit Description
Agenda
Agenda
Ⅰ. Introduction
Ⅱ. Main PBA
Ⅲ. OPE PBA
Ⅳ. SMPS PBA
Objectives
Objectives
I. To make you aware of the
key specification points
II. To show you how SCX-4200
series are different
1-1. Overview
Panel Board
OPC
SMPS + HVPS
Main Board
1-2. Block Diagram
LCD
KEY
LED
HC
48C50
OPE
Pickup
Solenoid
MP
Solenoid
Main CLK
10.00MHz
Video CLK
16.59MHz
USB2.0
FLASHROM
29LV800
SDRAM
8MB
UART
CY25811
CY25814
A(1:20)
D(0:15)
Chrous2
Main Board
Motor Drv.
A3977
Motor Drv.
A3977
3.3V
1.8V
3.3V
RESET IC
REG
REG
LSU
Main
Motor
Scan
Motor
CIS
Engine
Frame
Developer
Unit
Scanner
LSU
FAN 2
Thermistor
Fuser
Thermostat
TRIAC
FAN 1
P/Empty
Sensor
24V/5V
MP
Sensor
5V
SMPS
HVPS
Exit
Sensor
Feed
Sensor
T
R
CDRH S/W
S
R
D
R
Cover
Open S/W
C
R
1-3. Connection Diagram
1-4. General Spec.
1-4. General Spec.
1-5. Comparison Between SCX-4100 and SCX-4200
Same (Chorus 2)CPU
Same (1MB)ROM
Same (8MB)RAM
16.59MHz12.99MHzVideo Clock
USB 2.0USB 1.1USB
Main
2NK (Bi-polar)2K (Bi-Polar)Main-Motor
A3977AN44060Motor-IC
Same (600W)Heat-Lamp
SameLSU
Main(1) + Sub(1)Main(1)Fan
LITEON 600dpiCanon 600dpiCIS
ETCSCX-4200SCX-4100Item
Scan
Panel
SMPS
/HVPS
Bi-Polar(35Φ)Uni-Polar(35Φ)Scan-Motor
A3977 (Bi-polar)STA403A(Uni-Polar)Motor-IC
2*16 , 8Keys , 1LED2*16 , 7Keys LCD
48C05(Holtec)9228(SEC)ASIC
SameSMPS
SameHVPS
SMPS/HVPS on 1 Board
->Heat Sink Added
Objectives
Objectives
I. To show you the structure
and key elements of Main
PBA in SCX-4200
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