Service manual

System Diagram
Service Manual
6-1
Samsung Electronics
6.1 Block Diagramg
6. System Diagram
Reset IC
Inlet &
Power S/W
Fuser
Control
+5V/
+24V
SMPS
AC 110V / 220V
HVPS
DEV
Charger
T1 T2
EXIT
Sensor
Chorus3
(412
PBGA)
ARM926E
JS
(360MHz)
16KB
I-cache
16KB
D-cache
DMA / INT.
CTRL
PLL
DDRC
ROMC
(2CH NOR)
UART*2
HPVC
LSUC
DMAC
MOTORC
IOC
ADC/DAC
SCAN I/F
RTC/
TIMERS
FUSER
HOT,
Neutr
al
DDR2
K4T51163 x2
(64M x 16bit)
Serial Flash
For Back-up
2MB
FUSER_ON
LSU
MAIN PBA
SYS_nRESET
Flash memory
(AM29LV640)
8MB
EEPROM
M24C08
8K B
(32KB)
+5V
+24V
+24VF
Cover S/W
+24V
+24VF
+24VF +5V_LSU
Waste Toner
Sensor 1, 2
+24VF
DEVE Clutch
CRUM
CRUM
CRUM
CRUM
SCL,SDA
+24VF
+24VF
ITB_Clutch
ITB_Tension Clutch
Charger
Regi_Clutch
+24VF
Pickup_Clutch
+24VF
T2 Clutch
+24VF
Fuser Clutch
+24VF
+5V_LSU
+5V
ISP
1761
D+,D-,VBUS
BCM
5241KMLG
MVPG3
1
MVPG3
1
+5V
LD1117
+3.3V
+1V
+1.8V
Paper Driver
System
BLDC
12MHz
PTL &
Eraser
TD+,TD-,RD+,RD-
+24VF
nCOVER_OPEN
A3983
A,/A,B,/B
HT82V26
ADF I/F
PBA
FAN
SPK+,SPK
-
RJ11 RJ11
FAX
PBA
RTC
32.768KHz
OPC
Main Clock
12MHz
Color CIS
(COLOR
1200DPI)
SCAN MOTOR
Step
4-in-1 Only
USB Host
BLDC
D+,D-,VBUS
(4-in-1)
W-LAN (reserved)
USB Host
SSCG
MCLK VCLK
OPE
BAT
FUSER_THER M1
nFUSER1_EN
D+,D-,VBUS
ADF
Joint
ADF MOTOR
Step
DET
Sensor
POS
Sensor
nINTERLOCK
+24VF +5V_LSU
+5V_LSU
+24VF