Samsung ML-2251N/XAA Service Manual page 107

Connection Diagram
SMPS Signal PIN Table
Output Connector(to Main Board)
N
Pin Name
o
1
Feed Sensor
+5.0V 3
+5.0V GND 5
7
+24V GND
+24VS GND 9
+24VS 11
+24V 13
15
THV READ
THV PWM 17
BLAS PWM 19
21
LED TONER SAVE
FAN 23
EXIT 25
Panel Pin Assign
No Pin Name
1 +5.0V GND
2
LED READY
3 LED ERROR
4 LED TONER SAVE
5
KEY DEMO
FAN_CONNECTOR PIN
No Pin Name
1 Signal(FAN)
2 NC
3 GND
Service Manual
10-2
N
Pin Name
o
2
Paper Empty
4 +5.0V
6 +5.0V GND
8
N.C
10 +24VS GND
12 +24VS
14 MANUAL
16
LED READY
18 LED ERROR
20 THV EA
22
MHV PWM
24 KEY DEMO
26 FUSER ON
MP_CONNECTOR PIN
No Pin Name
1 Signal(P_REGI)
2
GND
3 VCC
MP_CONNECTOR PIN
No Pin Name
1 Signal(P_REGI)
2 GND
3 VCC
1
2
HRW, 2.0mm, 2R,
26PIN, Straigh
EXIT_CONNECTOR PIN EXIT_CONNECTOR PIN
No No
1 1 Signal(Exit) Signal(Exit)
2 2
3 3
EXIT_CONNECTOR PIN
No
1 Signal(Exit)
2
3
Pin Name Pin Name
GND GND
VCC VCC
Pin Name
GND
VCC
Samsung Electronics
25
26