Samsung ML-2851ND/XAZ User Manual

Service Manual
System Diagram
6-2
Samsung Electronics
6.2 Connection Diagram
Main
S/
W
INLET
MAIN
SMPS
SPGPv3
HVPS
FUSER Unit
ThermoStat
Thermistor
EXIT
Sensor
PickUp
Clutch
Regist Clutch
Front Cover
Micro Switch
Rear Cover
Micro Switch
24VS24V
DEVELOPER Unit
FAN
MAIN
FAN LSU
OPC
MHV
DEV
Supply
THV
Varistor
T
D
S
DRUM
M
Main
Motor
MT
BLDC
NOR Flash
S29GL320M
(4MB X 2EA)
SDRAM
K4S281632
(16MB X 2EA)
MCLK
12
MHz
VCLK
12
MHz
EEPROM
M24C32W X 2EA
CL
C R U M
LSU
INTERLOCK
S/
W
LSU
REGI_DUP
Sensor
FEED
Sensor
EMPTY
Sensor
SCF
(Option)
Network
BCM5241
25MHz
USB 2.0
Isp1582
12MHz
SOL
24VS
PICKUP_CLT
24VS
REGI_CLT
11
12
13
14
MOT_DIR
PWM_MOT
MOT_READY
MOT_EN
NC
MOT_BREAK
GND
GND
24VS
24VS
1
2
3
4
5
6
7
8
9
10
CN2
MAIN MOTOR & PICKUP, REGI CLUTCH
1
2
3
4
5
6
7
8
9
10
3.3V
GND
DUX_SENS
3.3V
GND
REGI_SENS
3.3V
GND
FE ED _S EN S
1
2
3
4
5
6
7
8
9
CN13
SENSOR
1
2
3
1
2
3
1
2
3
1
2
3
3.3V
GND
PAPER_EXIT
3
4
5
24VS 3.3V 3.3V SCF _RXD nSCF _DET SCF _TXD GND GND GND
1 2 3 4 5 6 7 8 9
CN14 SCF_IF
VBUS DM DP GND
1 2 3 4
CN11
US B _ I F
GND NC RD - 3.3V RD + TD- 3.3V TD+ 3.3V P /U LED2 3.3V P /U LED1
1 2 3 4 5 6 7 8 9
10 11 12
CN 9 NETWORK_IF
CN3
LSU S/W & FAN
24VS
GND
P_M OT _EN
LSU_RDY
P_M OT _C LK
LD_EN
LD_POWER1
GND
HSYNC1
LSU_SH1
GND
VD O1 _m in us
VDO1_plus
GND
LSU_5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN1
LSU_IF
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
LSU_5 V 5V 24VSN FAN_LSU
4 3 2 1
FAN_MAIN NC 24VS
1 2 3
CN12
FA N _MA I N
3.3V DEV _DIO DEV _CLK GND
4 3 2 1
CN8
CRUM
THE R1
THE R2
1
2
OPE
KEY LED1 LED2
3.3V DCU _DATA DCU _CLK GND
1 2 3 4
CN17
DCU
KEYCLIK LED_T LED_E LED_R GND
CN18
PANE L
1 2 3 4 5
CN6
THER & P_EXIT
SENSOR
24VS
FUSER_ON
GND
24V
GND
24V
GND
24V
GND
24V
GND
5V
GND
5V
GND
5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN10
SMPS _ IF
GND
GND
PW M _D EV _DC
PWM_MHV
THV _READ
PWM_MHV
nT HV_EN
PW M _TH V
5V
24VS
24VS
GND
GND
24V
24V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN4
HVPS _IF

Samsung ML-2851ND/XAZ Specifications

General

Brand	Samsung
Model	ML-2851ND/XAZ
Category	Printer
Language	English