Samsung CLP-770ND - Printer Connection Diagram

System Diagram
Service Manual
5-3
Samsung Electronics
5.3 Connection Diagram
Operational
Panel
SOL
Fuser
D i
3
2
1
1
2
3
4
5
6
4
3
2
1
MP empty
sensor
MP solenoid
EXIT
sensor
1st CST empty
sensor
FEED
sensor
Wi
Wi
Wire
Wire
PAPER PATH
3
2
1
2
1
3
2
1
3
2
1
Fuser
Main PBA panel con . (for test )
1 2 3 4 5 6 7
GND
3.3V
PANEL _TXD
nRST _PANEL
PANEL_RXD
POWER _SW
NC
6
5
4
3
2
1
1
2
3
4
5
6
7
1
2
3
4
FG
FG
3
2
1
Regi
sensor
1
2
3
Main
S/W
INLET
AC IN
SMPS TYPE 5
HVPS
3
.
3V
5V _ SM P S
P A
N
E L_
R
X
D
n
R
S
T
_ PA
N
EL
P A
N
E L_
T
X
D
nS E
N
S_ P_E X
IT
S E
N
S _MP_ EM P
T
Y
nS E
N
S_
F
EE
D
E
N
_ E
R
ASE
R
_1
nS E
N
S_ P_E MP
T
Y
E
N
_E
R
ASE
R
_2
E
N
_E
R
ASE
R
_3
M P_
C
L
UTC H
E
N
_E
R
ASE
R
_4
n
D
E
T
E
CT
_
C
S
T
GND
GND
GND
GND
GND
GND
GND
GND
GND
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1
1 0
9
8
7
6
5
4
3
2
1
PWM _
FU
S E
R
_B
I
AS
PWM _A
C
_ V PP_1
5 V
n E
N
_ A
C
_ 1
PWM _
D
EVE_
DC
_1
PWM _A
C
_1
PWM _A
C
_ V PP_2
PWM _A
C
_2
n E
N
_ A
C
_ 2
PWM _
D
EVE_
DC
_2
PWM _A
C
_ V PP_3
PWM _A
C
_3
n E
N
_ A
C
_ 3
PWM _
D
EVE_
DC
_3
n
D
E
T
E
CT
_
H
V PS
PWM _A
C
_4
n E
N
_ A
C
_ 4
PWM _
D
EVE_
DC
_4
PWM _M
H
V_ 1
PWM _
TH
V1_ 2
PWM _
TH
V1_ 1
PWM _
TH
V1_ 4
PWM _
TH
V1_ 3
n E
N
_ A
TTR
_
N
PWM _A
C
_ V PP_4
PWM _A
T T R
_P
A
N
_
R
E A
D
_ A
TTR
GND
A
N
_
R
E A
D
_
T
1
3
.
3 V
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Cover S /W
CH Y
DEV
TR
ATTR
G ND
3
.
3 V
P A
N
E L_
T
X
D
n
R
S
T
_PA
N
EL
PA
N
EL_
R
X
D
P
O
WE
R
_ SW
N.C
1
2
3
4
5
6
7
S
O
L_ MP
GN D
L E
D
_ A
NO D
E
GN D
S E
N
S _ MP_
n
D
E
T
E
CT
_
C
S
T
1
2
3
4
5
6
L E
D
_ A
NOD
E
GN D
n SE
N
S_E X
IT
1
2
3
L E
D
_ A
NOD
E
GN D
n S E
N
S_
C
S
T
_
E MP
T
L E
D
_ A
NOD
E
GN D
n S E
N
S_
F
E E
D
1
2
3
4
5
6
D
r
i
ver
B’D
T
DRUM
C
DRUM
DRUM DRUM
C
C C
D
D
D
D
Y K C M
1
2
3
4
5
6
6
5
4
3
2
1
4
3
2
1
Wi
re-
Wi
re
connector
Wire
-
Wire
connector
7 6 5 4 3 2 1
24 V_ 1
24 V S_1
1
2
Fuser
Unit
7
6
5
4
3
2
1
1
2
3
4
5
6
7
Wire-Wire connector
1
2
3
4
4
3
2
1
1
2
3
4
L E
D
_ A
NO D
E
GN D
n S E
N
S _ EX
IT
1
2
3
1
2
3
3
2
1
GN D
2 4V _ 1
2 4V _ 1
2 4V _ 1
GN D
GN D
GN D
2 4V _ 2
2 4V _ 2
2 4V _ 2
GN D
GN D
GN D
24 V _3
G N D
24 V _3
G N D
G N D
G N D
5 V S MP S
5 V S MP S
5 V S MP S
G N D
G N D
5 V S MP S
5 V S MP S
G N D
E
N
_SMP S _2 4 V
2
1
4
2
6
5
8
7
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
2 4V S1
2 4V S1
5 V
P WM _ M
H
V_ A
C
PWM _ M
H
V_A
C
_ VP P
PWM _ M
H
V_2_3
GND
GND
n E
N
_ M
H
V_ A
C
_2_ 3
PW M_M
H
V_4
n E
N
_ M
H
V_ A
C
_4
n E
N
_
F
A
N
_
H
V P S
S E
N
S_
F
A
N
_
H
V P S
AV HVPS
FAN
3
2
1
1
2
3
3
2
1
CH AC
KCM
AC HVPS
2 4V _ 1
24VS_ 1)
1
2
CN6
COVER
OPEN
OC1_N _VBUS DM1
DP
1
1 2
3
1
7
S
B
nEN _FAN_REAR
SENS _FAN_REAR
GND
1 2 3
CN
11
F
A
N
R
E A
R
3
.
3 V
n P
O
W E
R
_ SW
PA
N
EL_
R
X
D
n
R
S
T
_ P A
N
EL
P A
N
E L_
T
X
D
nS E
N
S_ P_E X
IT
SE
N
S _ MP_ E MP
T
Y
nSE
N
S_
F
E E
D
E
N
_E
R
ASE
R
_1
n S E
N
S_P_ EM P
T
Y
E
N
_E
R
ASE
R
_2
E
N
_E
R
ASE
R
_3
MP_
C
L
UT CH
E
N
_E
R
ASE
R
_4
n
D
E
T
E
CT
_
C
S
T
nSE
N
S_
R
E
GI
G ND
G ND
G ND
G ND
G ND
G ND
G ND
G ND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CN30 HVPS 2
PW M_
F U
S E
R
_ B
I
A S
PWM_ A
C
_ VP P_ 1
5 V
n E
N
_ A
C
_1
P WM_
D
E VE_
DC
_1
P W M_A
C
_1
PWM_ A
C
_ VP P_ 2
P W M_A
C
_2
n E
N
_ A
C
_2
P WM_
D
E VE_
DC
_2
PWM_ A
C
_ VP P_ 3
P W M_A
C
_3
n E
N
_ A
C
_3
P WM_
D
E VE_
DC
_3
GND
P W M_A
C
_4
n E
N
_ A
C
_4
P WM_
D
E VE_
DC
_4
PWM _ M
H
V _1
PW M_
TH
V1 _2
PW M_
TH
V1 _1
PW M_
TH
V1 _4
PW M_
TH
V1 _3
n E
N
_ A
T T R
_
N
PWM_ A
C
_ VP P_ 4
PW M_A
TTR
_ P
A
N
_
R
EA
D
_ A
TT R
A
N
_
R
EA
D
_
CHG
A
N
_
R
E A
D
_
T
1
3
.
3 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
CN28 HVPS 1
Y
RJ45
REAR
FAN
GN D
24 V_1
24 V_1
24 V_1
GN D
GN D
GN D
24 V_2
24 V_2
24 V_2
GN D
GN D
GN D
2 4V_ 3
GN D
2 4V_ 3
GN D
GN D
GN D
5 V SMPS
5 V SMPS
5 V SMPS
GN D
GN D
5 V SMPS
5 V SM PS
GN D
E
N
_ S MPS_24 V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
CN27 SMPS
3
.
3 V
E
N
_P
T
L _1
3
.
3 V
E
N
_P
T
L _2
3
.
2 V
E
N
_P
T
L _3
3
.
3 V
E
N
_P
T
L _4
CN5
DEVE CRUM
7
6
5
4
3
2
1
LSU _LD_1_2_ POWER
nLDON _LSU_1
GND
nHSYNC _1_ P nHSYNC _1_ N
GND
5VLSU
nSH _LSU_1_2 B
GND
VDO_1_2 B_ N
VDO_1_2 B_ P
GND
VDO_1_1 B_ N
VDO 1 1 B P
1 2 3 4 5 6 7 8 9
10 11 12 13
14
C
N
16 15 14 13 12 11 10
9 8 7 6 5 4 3
24VS1
24VS1
5 V
PW M _ M
H
V_A
C
PW M _ M
H
V _ A
C
_ V PP
PWM _ M
H
V_ 2_3
GN D
GN D
n E
N
_ M
H
V _A
C
_2_ 3
P WM_M
H
V _4
n E
N
_M
H
V_A
C
_4
n E
N
_
F
A
N
_
H
V PS
S E
N
S _
F
A
N
_
H
V PS
1
2
3
4
5
6
7
8
9
10
11
12
13
1 3
1 2
1 1
1 0
9
8
7
6
5
4
3
2
1
AC
HVPS
CN 10 AC HVPS
8
7
6
5
4
3
2
1
S
C
L_ 4
S
C
L_ 3
S
D
A_
D
EV
D GN D
S
C
L_ 2
S
C
L_ 1
V
C C
CN 12 PTL
LSU _LD_3_4_ POWER
nLDON _LSU_3
GND
nHSYNC _3_ P nHSYNC _3_ N
GND
5VLSU
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8 9
10 11 12 13 14
CN2 2
Em
bed ded
E
TH
E
R N
E
T
GND NC RD- 3.3V_ CTR_TAP RD+ TD- 3.3V_ CTR_TAP TD+ 3.3V 3.3V(LED 1) 3.3V 3.3V(LED 2) GND GND
DP
1
GND GND GND
3
4 5 6
CN
1
U
S
LS
U
M
CEZANNE
Main PBA
Regi
Clutch
6 5 4 3 2 1
SM_OUT_ DEV_4_nS SM_OUT_ DEV_4_B SM_OUT_ DEV_4_nA SM_OUT_ DEV_4_A CON_CLT_REGI_24v CON_CLT_REGI
M
T
4 3 2 1
FEED
STEP Motor
2 1
C
L
T
16 15 14 13 12 11 10
_
_
_
GND
nSH _LSU_1_1 B
LSU _LD_1_2_ POWER
nLDON _LSU_2
GND
nHSYNC _2_ P nHSYNC _2_ N
GND
5VLSU
nSH _LSU_2_1 B
GND
VDO_2_1 B_ N
VDO_2_1 B_ P
GND
VDO_2_2 B_ N
VDO_2_2 B_ P
GND
nSH _LSU_2_2 B
14
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
N
24
L
S
U34
16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
2 1
CN3 0
F
EE
D
S
T
EPM
O T OR
nSH
_
LSU
_
3
_
2B
GND
VDO_3_2 B_ N VDO_3_2 B_ P
GND
VDO_3_1 B_ N VDO_3_1 B_ P
GND
nSH _LSU_3_1 B
N. C
LSU _LD_3_4_ POWER
nLDON _LSU_4
GND
nHSYNC _4_ P nHSYNC _4_ N
GND
5VLSU
nSH _LSU_4_1 B
GND
VDO_4_1 B_ N VDO_4_1 B_ P
GND
VDO_4_2 B_ N VDO_4_2 B_ P
GND
nSH _LSU_4_2 B
N. C
8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
CN25
L
S
U34
3
.
3 V
R x D
Tx D
GN D
CN1
DEBUG
BL
DC
_
FU
S E
R
_
D IR
C
L K_ B L
DC
_
F U
SE
R
n
R
EA
D
Y_B L
D C
_
F U
SE
R
E
N
_ BL
D C
_
F U
SE
R
5 V
BL
DC
_
FU
S E
R
_ B
R
AKE
GN D
GN D
2 4VS _1
2 4VS _1
C ON
_
F
A
N
_
F U
S E
R
_ 24 V
C ON
_
F
A
N
_
F U
S E
R
_ S E
N
S
C ON
_
F
A
N
_
F U
S E
R
_
G ND
C ON
_
C
L
T
_
D
EV_4
C ON
_
C
L
T
_
D
EV_4_2 4V
CN 231
Fuser BLDC
DEVE Clt
Fuser Fan
GND GND N.C nCMD _REQ_SCF
SCF_RXD nRST_SCF
3.3V 24V_3 24V_3 GND GND GND IF_ SCF nBUSY_SCF SCF_TXD
3
3
V
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15
16
C N4
S
CF
3.3V GND nSENS_BIN _FULL
1 2 3
CN3 2
SE
N
S
O R
OUT
B
IN
5
V
G
N D
A
N
_
CT D
1 _P
A
N
_
CT D
1 _S
5
V
D
E
T
E
CT
_P
T
B
P
W M _
CR
_LE
D
_1
A
N
_
CT D
2 _P
A
N
_
CT D
2 _S
P
W M _
CR
_LE
D
_2
.
3 V _
CR U
M
S
C
L_ B EL
T
S
D
A_ BEL
T
5
VS
CN13
PTB
CTD SENSOR
U
S E
R
_
TH
E
R
M1
G
N D
U
S E
R
_
TH
E
R
M2
G
N D
S
_
N
E W_
FU
S E
R
G
N D
CN 15
FUSER
THERMISTOR
G
N D
R
ELA Y_ A
C
_
ON
Z
E
RO
_
CRO
S S
F
U
SE
R
2_
ON
F
U
SE
R
1_
ON
4 V S_2
\
16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
C K
OutBin
Sensor
3 2 1
24V_
GN
D
nS
T
A
RT
_L S
U
_M
OT
_
n
R
EA
D
Y_LS
U
_1_
C
LK_L S
U
_M
OT
_
24V_
GN
D
nS
T
A
RT
_L S
U
_M
OT
_
n
R
EA
D
Y_LS
U
_3_
C
LK_L S
U
_M
OT
_
CN26
LSU BLDC
Humidity
& Temp
Temp
1 2 3 4 5 6
GND INNER_TEMP
OUT_ TEMP
GND HUMIDITY 5VA
2 1 4 3 2 1
9 8 7 6 5 4 3 2 1
BL
D C
_
O
P
C
_
DIR
C
L K_ B L
D C
_
O
P
C
n
R
EA
D
Y_B L
D C
_
O
P
C
E
N
_ BL
D C
_
O
P
C
5 V
GN D
GN D
GN D
24 V S_ 1
24 V S_ 1
CN7
OPC BLDC
P
IC
K
U
P _
C
L
UTCH
24 VS_2
5 V
C
L K_ B L
D C
_
D
E V
n
R
EA
D
Y_B L
D C
_
D
E V
E
N
_ BL
D C
_
D
E V
5V
G ND
G ND
G ND
2 4V S_2
2 4V S_2
CN8
DEVE BLDC
CASSETTE PICKUP
DG ND
S A
T
A
T
X P
S A
T
A
T
X
N
DG ND
S A
T
A
R
X
N
SA
T
A
R
X P
DG ND
DG ND
DG ND
CN18
SATA IF
5 V
DG ND
CN 19
SATA
POWER
CN16
HU
M
IN IT
Y
T
E MP
S E
N
S
OR
CN14 FUSER
HEAT CONTROL
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
3
.
3
V
3.3V 24V_3
16
17 18
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
5
G
A
A
5
n
P
A
A
P
3
S
S
5
F
G
F
G
n
S
G
1
2
3
4
5
6
PTB
CRUM
5 V
GN D
A
N
_
CT D
1_ P
A
N
_
CT D
1_ S
5 V
n
D
E
T
E
CT
_ P
T
B
PWM _
C R
_ LE
D
_1
A
N
_
CT D
2_ P
A
N
_
CT D
2_ S
PWM _
C R
_ LE
D
_2
3
.
3 V _
CR U
M
S
C
L _BE L
T
S
D
A _ BEL
T
5 VS
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
_
S
_
P
L
E
D
_1
_
S
_
P
L
E
D
_2
G
R
Z
F
F
2
1
2
3
4
5
6
FUSER
Driver
B
’
D
FUSER
FAN
GN D
GN D
N .C
n
C
M
D
_
R
E
Q
_S
CF
S
CF
_
R
X
D
n
R
S
T
_S
CF
3
.
3V
24V_3
24V_3
GN D
GN D
GN D
IF
_ S
CF
nB
U
S Y_ S
CF
S
CF
_
T
X
D
3
.
3V
3
.
3V
24V_3
18
16
14
12
10
8
6
4
2
17
15
13
11
9
7
5
3
1
Second
Cassette
Feeder
MT
YM
MT
CK
1
2
3
4
5
C
L K_L S
U
_ M
OT
_4
n
R
EA
D
Y_L S
U
_3_4
n S
T
A
RT
_LS
U
_ M
OT
_4
GN D
24V _ 3
1
2
3
4
5
C
L K_L S
U
_ M
OT
_1
n
R
EA
D
Y_L S
U
_1 _2
n S
T
A
RT
_LS
U
_ M
OT
_1
G ND
24V_3
1 2 3
4
1
2
AC_H
AC
N
Drawer con .
1
2
2
1
3
2
1
1
2
3
Wire-Wire connector
7
6
5
4
3
2
1
14
13
12
11
10
9
8
14
13
12
11
10
9
8
7
6
5
4
3
2
1
3
D
1
2
1
3
D
4
4
4
1
2
3
4
5
6
7
8
9
10
GND
LSU_temp
1 2
CN
9
LS
U
T
emp
s
en
2 1
MT
1
2
3
4
5
6
7
8
9
10
B L
D C
_
FU
SE
R
_
DIR
C
L K_ BL
DC
_
F U
SE
R
n
R
E A
D
Y _ BL
DC
_
F U
SE
R
E
N
_ BL
DC
_
F U
SE
R
5 V
B L
D C
_
FU
SE
R
_B
R
A KE
GN D
GN D
2 4VS _1
2 4VS _1
DeveK
2
1
CLT
n
1
2
3
4
5
6
7
8
9
1 0
MT
1 0
9
8
7
6
5
4
3
2
1
OPC BLDC
BL
D C
_
O
P
C
_
DI R
C
LK _ BL
D C
_
O
P
C
n
R
E A
D
Y _ BL
D C
_
O
P
C
E
N
_ BL
DC
_
O
P
C
5V
GND
GND
GND
24V S _ 1
24V S _ 1
MT
n
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
SOL
Pick up Solenoid
1 0
9
8
7
6
5
4
3
2
1
DEVE BLDC
5 V ( m o
t
o r d
i
r)
C
L K_ BL
DC
_
D
EV
n
R
E A
D
Y _ BL
D C
_
D
EV
E
N
_ BL
DC
_
D
EV
5 V
G ND
G ND
G ND
2 4V S_2
2 4V S_2
1
2
3
4
5
6
7
8
9
1
2
A
N
_
CTD
1
_
A
N
_
CTD
1
_
PWM _
CR
L
G ND
5 V
A
N
_
CTD
2
_
A
N
_
CTD
2
_
PWM _
CR
L
G ND
5 V
1
2
3
4
5
6
7
8
9
1 0
CTD
sensor 1
CTD
sensor 2
B
’
D
(2 LAMP)
FUSER Unit
ThermoStat
Thermistor
LSU BLDC
motor
4
5 6
AC IN
2
AC
_
N
COM
Fuser
Bias
(from HVPS )
5
4
3
2
1
5
4
3
2
1
FUSER
BLDC motor
DeveK
Clutch
moto
r
motor