System Diagram
Service Manual
6-1
Samsung Electronics
6.1 Block Diagramg
6. System Diagram
Reset IC
Inlet
&
Pow
er S/W
Fuser Contro
l
+5V/
+24V
SMPS
AC 110V / 220
V
HVPS
D
EV
Charger
T1
T2
EX
IT
Sensor
Chorus
3
(412 PBG
A)
AR
M
92
6E
JS
(3
60
M
H
z)
16
KB
I-cache
16
KB
D
-c
ac
he
DMA / INT.
CTRL
PL
L
DDRC
ROMC
(2
C
H
N
O
R
)
UART*
2
HPVC
LS
U
C
DMAC
MOTORC
IO
C
ADC/DAC
SCAN I/
F
RTC/
TIMERS
FUSER
H
O
T,
Neutr
al
D
D
R
2
K4
T5
11
63
x
2
(64M
x 16bit)
Serial Flash For Back-u
p
2MB
FU
SE
R
_O
N
LSU
MAIN PBA
SY
S_nR
ES
ET
Flash memor
y
(AM29LV640)
8MB
EE
PR
O
M
M24C08
8K B (32KB)
+5
V
+24V
+24VF
Cov
er
S
/W
+24V
+24VF
+24VF +5V_L
SU
W
aste Ton
er
Se
nsor 1,
2
+24VF
DE
V
E
C
lu
tc
h
CRUM
CRUM
CRUM
CRUM
SC
L,
SD
A
+24VF +24VF
IT
B_
C
lu
tc
h
IT
B_
Te
ns
io
n
C
lu
tc
h
C
ha
rg
er
Regi_Clutch
+24VF
Pi
ck
up
_C
lu
tc
h
+24VF
T2 Clutc
h
+24VF
Fus
er Clutc
h
+24VF
+5
V_
LS
U
+5
V
IS
P
17
61
D
+,
D
-,V
BU
S
BCM
52
41
KM
LG
M
VP
G
3
1
M
VP
G
3
1
+5
V
LD
11
17
+3.3V
+1V
+1.8V
Pa
pe
r D
riv
er
Sy
stem
BLDC
12
M
H
z
PT
L
&
Eraser
TD
+,
TD
-,R
D
+,
R
D
-
+24VF
nCOVER_OPE
N
A3
98
3
A,
/A
,B
,/B
H
T8
2V
26
ADF I/F
PBA
FA
N
SP
K
+,
SP
K
-
RJ11
RJ11
FAX PBA
R
TC
32.76
8K
H
z
OPC
M
ai
n
C
lo
ck
12
M
H
z
Color CIS
(COLOR 1200DPI)
SC
AN
MOTOR
St
ep
4-in-1 Only
USB
Host
BLDC
D
+,
D
-,V
BU
S
(4-in-1)
W-L
AN
(rese
rv
ed
)
USB
Host
SS
C
G
M
C
LK
VC
LK
OP
E
B
AT
FU
SE
R
_T
H
ER
M
1
nF
U
SE
R
1_
EN
D
+,
D
-,V
BU
S
ADF Joint
ADF
MOTOR
St
ep
D
ET
Sensor
POS Sensor
nINT
ER
LOC
K
+24VF +5V_L
SU
+5V_L
SU
+24VF
