5. System Diagram
5-1
Samsung Electronics
Service Manual
SCX-483x/5x3x series
5. System Diagram
5.1 Block Diagram (SCX-483xFD)
P
ow
er
S
/W
CPU
:
Ch
o
ru
s
3
Cl
o
c
k
:
360
Mh
z
OP
E
2
lin
e
B
u
zze
r ,
P
ow
e
r S
/W
HV
P
S
B
oa
rd
(M
H
V
,TH
V
,DE
V
_DC
,F
U
S
E
R_B
IA
S
)
LS
U
2
BE
A
M
SC
F
(R
st
,Rx
,Tx
,
)
RE
Q
540
?
UA
R
T
x
4
US
B
2
.0
MA
C
I2C
x
2
D
D
R
2
128
M
ON
BOA
R
D
+
256
MB
1
D
IMM
NCR
U
M
PH
Y
IC
A
C
201A
1
K
M
LG
10
/100
LA
N
US
B
D
e
vi
c
e
AD
F
Uni
t
M
ode
m
C
o
ne
xa
nt
IS
P
1582
EEP
R
O
M(6
4
K)
LSU
c
on
trol
le
r
DDR
2
c
on
trol
le
r
SC
A
N
IF
/
AF
E
GP
IO
PW
M
x
12
DA
C
AD
C
RT
C
RT
C
ba
tte
ry
Fla
sh
(1
6
M
)
fo
r O
S
E
ng
ine
(T
B
D
)
-
S
ole
n
oi
d
?
(MP,
Pi
ck
u
p
,Re
g
i)
-
S
e
n
s
or
?
(Exi
t,
F
eed
, E
m
p
ty
,
Re
g
i,
O
ut
b
in
f
ul
l
,
M
P
,
A
DF
_
DE
T,
A
D
F
_
P
O
S
,
AD
F
_
C
O
V
E
R,
D
u
ple
x)
-
Fa
n
(
M
a
,
in
SM
P
S
,M
IDDL
E)
Mo
tor
Co
v
e
r S
/W
Deb
u
g
M
AI
N
B
O
AR
D
Fu
se
r
th
e
rm
is
to
r
1
B
L
D
C
ST
E
P
A3983
Se
ria
l F
la
sh
(8
M)
fo
r
FA
X
Fla
sh
DCDC
ST
1
S
10
TH
V
r
e
a
d
LD
pow
e
r
SPI
C
IS
Sca
n
U
n
it
U
SB
H
O
ST
DCDC
ST
1
S
10
DCDC
ST
1
S1
0
3.
3V
syst
e
m
1.
8V
DDR
1.
0
V
CH
O
RU
S
3
SM
PS
(T
Y
P
E
2
)
24
V
, 5
V
, F
D
B
, R
e
la
y
S
p
ea
ker
LA
F
E
1001
R
ai
n
ier
31
B
loc
k
D
iagr
am
2010
.007
.12
Am
b
ie
n
t
5V
SM
PS
U
R
5596
0.
9
V
VT
T
H/
W
PR
O
T
E
C
T
Ho
m
e
Se
n
so
r
ST
E
P
A3983
