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3-3
Samsung Electronics
CIRCUIT DESCRIPTION
Repair Manual
<Figure 2. Block Diagram of Main Part>
SMPS
(15) Main
Controller
(U21)
Image
Processor
OA-980
Main Clock
10MHz
RESET
CONTROLLER
FLASH ROM
ADC
16bit
(U16)
SDRAM
1M* 16bit
(U9)
CARRIER
MOT
OR
LINE FEED
MOT
OR
(30V
, 3.3V)
AC
(1
10~240V)
CCD Module
( COLOR 600DPI )
SCAN MOT
OR
( Bi-POLAR STEP
)
SCAN STEPPER
MOT
OR DRIVER
COLOR
CAR
TRIDGE
MONO
CAR
TRIDGE
HEAD(2PEN)
60DPI DOUBLE HEIGHT
ENCORDER
SENSOR
ENCODER
USB CONN
PC
48MHz
(A
U1
)
BU
ZZ
ER
(U27)
SDRAM
(4M 16bit)
1284 CONN
(U1)
HEAD
Driver
IC
/R
E
Q
/A
C
K
KEY
P
ANNEL
LCD
Mcro Controller (U1)
(U5)
(U
10
,U
14)
POWER
MAIN
OPE
SCANNER
+30V
+5V
+12V
+3.3V
PAPER EXIT
SENSOR
(U4)
Motor
Driver
& Regul at or
(U13)
(U7)
ARM7TDM
MEM CNTR
Head Control I/F
SCAN CNTR
DERASTERIZER
U
ART 3
IEEE 1284
TIMERS
I/O POR
T
INT
. CNTR
USEB
DM 2
Summary of Contents for SCX-1100
Page 77: ...3 18 CIRCUIT DESCRIPTION Samsung Electronics Repair Manual 3 J3 Assigned GPO ...
Page 85: ...3 26 CIRCUIT DESCRIPTION Samsung Electronics Repair Manual 3 5 3 COPY DATA FLOW FOR OA 980 ...
Page 86: ...3 27 Samsung Electronics CIRCUIT DESCRIPTION Repair Manual 3 5 4 OA 980 I O PORT ...
Page 87: ...3 28 CIRCUIT DESCRIPTION Samsung Electronics Repair Manual ...
Page 108: ...Electronics ...