2. Product specifications and descriptions
Service Manual
SCX-483x/5x3x series
2-22
Samsung Electronics
2.2.5 Hardware configuration
The SCX-483x series Electrical Circuit System consists of the following:
• Main Controller
• OPE Controller
• DDR2 SODIMM (Option)
• SCF(Option)
• SMPS
• HVPS
Diagram of the SCX-483x series Electrical Circuit
The Main Controller controls all modules required to print, that is, LSU, HVPS, SMPS, FAN, Fuser, FAX
,Scanner etc.
The Main Controller receives print data from the host through network or USB Port or fax, Scanner. It takes
this information and generates printable video bitmap data. Engine and Video Controller are not separated.
5V
SCANNER_HOME
GND
Rainier Hardware Team
R&D Group 2
Digital Print Division
Samsung Electronics
100409
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INLET FUS E R
THE RM_1
1
2
CN10(2mm)
THERM
MO T_DIR
PW M_ MO T
MO T_REA D Y
MO T_EN
GND
MO T_BRE AK
GND
GND
24VS
24VS
24VS
Pi ck up_CLT
24VS
Regi_CLT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN14(2mm)
MAIN MOTOR
3.3V
GND
PEAPER_EXIT
1
2
3
CN(2mm)
P_EXIT
SENSOR
3.3VPS
GND
nSENS_BIN_FU LL
3.3V_C_OPEN1
3.3V_C_OPEN2
1
2
3
4
5
CN6(1. 5 mm)
OUTBIN
SENSOR
VBUS
DM
DP
GND
1
2
3
4
CN28
USB_IF
GND
NC
RD-
3.3V
RD+
TD-
3.3V
3.3V pullup
LED1
3.3V
LED2
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN7
NETWORK_IF
GND
SCA NNER_HOME
nRST_PAN E L
nPOWER_SW
GND
GND
PA NEL _TX D
PA NEL _R XD
MOD_ BUZ ZER_CON
KE YCLI CK_C ON
CN5
(1.5mm )
OPE I/F
1
2
3
4
5
6
7
8
9
10
3.3V_LSU
nHsync
GND
VDO_1_P
VDO _1_N
GND
nSH_ 1
nSH_ 2
GND
VDO_2_P
VDO _2_N
GND
nLD_ON
LD_POWE R
N.C
CLK_LSU_MOT
nREADY _LS U
nLSU_MOT_EN
GND
24VS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN21(FFC 1mm)
LSU_IF
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1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
24VS
GND
THV_READ
nTHV_EN
PWM_THV
PWM_DEV_DC
PWM_MHV
PWM_FUSER_BIAS
GND
GND
3.3VS
3.3V_Cover_Open
1
2
3
4
5
6
7
8
9
10
11
12
CN16(2mm)
HVPS
5V_SMPS
GND
24V
GND
1
2
3
4
CN17
SM PS
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5V_S MP S
GND
24V
GND
1
2
3
4
CN3
SM PS
GND
24V OFF
Relay
24VS
Fuse r ON
1
2
3
4
5
CN4
SM PS
GND
24V OFF
Relay
24V S
Fuse r ON
5
4
3
2
1
CN18
(2m m)
SMPS
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GND
GND
24VS
1
2
3
CN12
(2mm)
MAIN FAN
24V S1
GND2
CN11
(2 m m)
SM PS F AN
12
11
10
9
8
7
6
5
4
3
2
1
GND
CLK
DIO
3.3V_CRUM
1
2
3
4
CN 2 3
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GND
P_Empty
SENS
3.3VS
GND
REGI_S EN S
3.3VS
GND
FEED _SEN S
1
2
3
4
5
6
7
8
9
CN(2mm)
SENSOR
24VS
MP_C LT
3.3VS
GND
MP_SEN S
1
2
3
4
5
CN(2mm)
MP
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24VS
GND
THV_RE A D
nTHV_EN
PWM_THV
PWM_DEV_DC
PWM_MHV
PWM_FUSER_BIAS
GND
GND
3.3VS
3.3V_Cover_Open
CN8(1.5mm)
SCF_IF
3.3V_LSU
nHsync
GND
VDO_1_P
VDO _1_N
GND
nSH_ 1
nSH_ 2
GND
VDO_2_P
VDO _2_N
GND
nLD_ON
LD_POWE R
N.C
CLK_LSU_MOT
nREADY _LS U
nLSU_MOT_EN
GND
24VS
LSU
(Dual Beam)
24V
24V
24V
3.3V
3.3V
3.3V
nRST_SCF
SCF_TXD
SCF_RXD
N. C
nSCF_OPT
N. C
N. C
GND
GND
GND
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
OPE_LCD
LCD (2- Line )
VB US
DM
DP
GND
1
2
3
4
CN19
USB_IF
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SCA N_C ONTR OL1
GND
3. 3V _CI S
PULL-U P
CIS_S P
3CIS_CLK
12V
CI S_BLE D
CIS_GLED
CIS_R L E D
GND
1
2
3
4
5
6
7
8
9
10
11
12
CN26(FFC 1mm)
CIS _ IF
OUT1A
OUT1B
OUT2A
OUT2B
1
2
3
4
CN4(2mm )
SCAN_ MTR
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OUT2A
OUT1B
OUT1A
GND
GND
3.3VPS
GND
nADF_P_POS
nADF_COVER_SENS
GND
nADF_P_DET
1
2
3
4
5
6
7
8
9
10
11
12
CN 3(1 .5mm )
ADF_IF
ADF_JOINT
OUT2B
OUT2A
OUT1B
OUT1A
GND
GND
3.3VPS
GND
nADF_P_POS
nAD F_CO VER_ SEN S
GND
nAD F_P _DET
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ADF _IF
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DATA7~
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GND
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GND
HOOK_D ET
nCS_MODE M
nRD
nW R
N.C
nRST_ MODE M
nINT_MODE M
N.C
3.3V
3.3V
GND
1
2
3~
~10
11
12~
~18
19
20
21
22
23
24
25
26
27
28
29
30
CN9(FFC 1mm)
MODE M_IF
MODEM
(C onexant )
1
2
3~
~10
11
12~
~18
19
20
21
22
23
24
25
26
27
28
29
30
GND
5V
DATA7~
~DA TA0
GND
R1~ADD
~AD DR7
GND
HOOK _DET
nCS_MODE M
nRD
nWR
nRING0
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nINT_MODE M
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1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
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24V S1
GND2
CN30
(1.5m m)
SMPS FAN
5V
DER_LEASER
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GND
1
2
3
4
CN24(1.5mm)
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TENAMBI
GND
1
2
CN15
(1 .5mm)
AIR
TEM P
1
2
3
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2
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T1BOU
OUT1A
DGN
DGN
3.3VPS
DGN
nADF_P_POS
nADF_COVER_ SE NS
DGN
nADF_P_DET
CN( 1.5m m)
ADF_IF
12
11
10
9
8
7
6
5
4
3
2
1
CIS
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5V
NC
1
2
3
CN20
PA RALLEL
POWER
USB TO
PARALLEL
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