Samsung SCX 6220 Block Diagram
Block Diagram
Service Manual
9-1
Samsung Electronics
OPE
MAIN
LIU
Platen
DADF
16MB
MICOM
- LCD Drive
- Key Scan
D-SUB
CONN.
FLAT MOTOR
SRAM
Flash, Kernel
(1MB X 2EA)
DIRECT KIT
PCL6
USB/IEEE1284
NETWORK KIT
NETWORK I/F(Net ONE)
PCL6
USB/IEEE1284
SDRAM, 16MB
SDRAM, DIMM
Flash DIMM
PS3
(2MB)
ADF MOTOR
PAPER SENSOR
POS, DET
Option
Option
MOTOR
DRIVER
CENTRONTCS
CABLE
USB CABLE
FAST SRAM
(1Mbit)
Image Processer
AFE I/F
I/O PORT
Motor CNTR
DMAC
AFE
CCD MODULE
Network I/F
26P
3P x 2EA
24P
8P
11P
2P3P3P
3P
4P
2P
4P
2P X 3EA
3P X 2EA
6P X 1EA
5P
15P D-SUB
Option
MODEM
33.6Kbps
CIP4e
ARM946ES
CACHE(16K*2)
SDRAMC
ROMC
DMAC
PVC
GEU/HCT/gCODEC
I/O I/F
Engine Control
IEEE1284/USB2.0
MOTOR
DRIVER
A3977SLR
Extended
GPIO
74LCX245
74LCX273
SPGPm
Option
External
Auditron
TRANSFORMER
600/600
Tx:Rx
MODEM &
EXT_PHONE
SEPERATING
PART
EXTERNAL
PHONE
INTERFACE
PART
LINE
INTERFACE
LINE1
EXTERNAL
PHONE
24P
14P
SMPS / HVPS
+5V/+24V/+12V/+24Vs/Fuser
T
H
V
M
H
V
DEV
SUPPLY
BLADE
MOTOR 1
MOTOR 2
LSU
THERMISTOR
FAN
DEV_ID
TONER_TX
TONER_RX
PTL
SOLENOID
PICK_UP, DUPLEX, MP
PAPER SENSOR
FEED+P, EMP, EXIT, MP
COVER OPEN S/W
+24V / +5V
Backup logic
9
9
9. Block Diagram
9.1 System Block Diagram
Service Manual
Block Diagram
9-2
Samsung Electronics
Micom
S3P8454
EEPROM
W27C512
Motor Driver
A3977
Step Motor
(Sc an Motor)
Step Motor
(Rev erse Motor)
Motor Driver
A3977
Transistor
2SC2812
PickUp Clutch
Regi Clutch
Duplex Clutch
Scan Sensor
Duplex Sensor
Sensor
Interface
Board
DET/Width
Regi Sensor
Gate Sensor
Doc Length
Sensor
Exit Open
Sensor
DADF Board
Input
Output
-Enable
-Sleep
-Mot or P ulse
-Mot or Direction
-Res olution Control -On/Off Control
Main I/F
-5V
-24V
-5GND
-24GND
-SYS_RST*
-DADFTX
-DADFRX
-ScanSensor(Out)
-PrintReady(In)
- Engine_Ready(In)
Sensor I/F
Board
8P
6P
4P
3P
5P
4P
16P
Door Open
Sensor
8P4P4P
9.2 DADF Block Diagram
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