Samsung ML-3561N Series, Service Manual

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Block diagram
Service Manual
9-1
Samsung Electronics
RO
M
/
NA
ND
F
la
s
h
Controller
LS
U
3P
L
L
Sy
s
te
m
BU
S
1
00M
h
z
PWM
DA
C
A/
D
Converter
UA
R
T
Se
r
ia
l
I/
O
Na
n
d
Fl
a
s
h
R
O
M
(32M
)
HV
P
S
MA
IN
MO
T
O
R
DE
V
M
O
T
O
R
Sy
s
tem
M
a
nage
r
CP
U
(S
P
G
P
V
3
)
A
R
M
1020E
SY
ST
EM
BU
S
SF
R
BU
S
AH
B
B
U
S
Fr
o
m
P
o
w
e
r
S
u
p
p
ly
+5
V
,
+3
.3
V
,
+2
4
V
LD
dr
iver
Po
ly
g
o
n
Mo
to
r
*
349
67r
p
m
La
s
e
r
S
c
a
nni
n
g
U
ni
t
PW
M
PC
I
BR
ID
G
E
ET
H
E
R
N
ET
SD
R
A
M
SD
R
A
M
(3
2
M
)
S
A
[1
2:
0]
EXT
E
N
S
IO
N
ME
MO
R
Y
(D
IM
M
)
PC
I
NE
T
W
O
R
K
A
D
[3
1:
0]
EM
BED
D
ED
MA
C
PA
N
E
L
O
p
ti
on
T
ray
DU
P
L
E
X
PA
R
A
L
L
E
L
IN
T
R
EF
AC
E
PAR
A
L
L
E
L
PO
R
T
12M
H
z
I2
C
Co
n
tr
o
ll
e
r
I2
C
INT
E
R
F
A
CE
HP
V
C
VI
D
E
O
D
AT
A
I/
P
P
O
R
T
E
-C
O
IL
H
e
at
er
Dr
ive
S
o
leno
id
&
Cl
u
tc
h
d
rive
Fa
n
D
ri
ve
SEN
S
O
R
CO
N
T
RO
L
US
B
2
.0
HDD (Option)
D[
1
5
:0
]
S
D
[3
1:
0]
Controller
Controller
Control
Control
Control
Control
9
9
9. Block Diagram
9.1 System Block Diagram