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2-2
CONNECTION DIAGRAM
Samsung Electronics
Repair Manual
1
2
3
4
5
6
7
8
9
10
11
+24V_SLEEP
+24VGND
*P
LREADY*
MOTOR
EXT_CLK
*HSYNC
+5V
+5V GND
*LD_ON
VDO
+5V GND
LSU
POLYGON
MOTOR
LD DIODE
+5V
+5V GND
KEY_TONER*
KEY_CANCEL*
KEY_DEMO*
1
2
3
4
5
6
7
8
9
LED
DISPLAY
PANEL
1
2
3
4
5
6
7
8
9
+5V
PTL
PT L LED ARRAY
1
2
+24V_SLEEP
+24V GND
THVPWM
*THV_EN
THVRE AD
*MHVPWM
BI ASPW M
+5V
+5V GND
HV PS
1
2
3
4
5
6
7
8
9
THERM_A
THERM_B
1
2
THERMI STOR
+24V
+24VS
1
2
3
COVER
SW ITCH
+5V
*PEMPTY
1
2
3
4
FEED_SENSOR*
+5V GND
SENSOR
BOARD
36
PI N
HO ST
COMPUTER
IEEE1284
COMPATI ABLE
CABLE
J1
CN12
CN6
CN8
CN11
CN5
CN4
CN2
CN3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SMPS
ENGINE
4PI N
CONN-
ECT O R
for
US B
USB CABLE
CN7
DCU
CN
9
+5V
DCU_DATA
1
2
3
4
1
2
3
4
DCU_CLK
+5V GND
Not Used
ENGINE+ SMPS
B
Unification
'd
SOLE-
NOID
CN1
DEV_F U SE
CN3
CN4
FAN
FUSER
CN502
STEP-
PI NG
M
O
TOR
C
N
2
CN5
PCL
Main
Board
1
2
3
4
5
1
2
3
4
5
6
1
2
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
1
2
1
2
3
1
2
3
4
LED_ERROR
LED_PAPER
LED_DATA
LED_TONER
+5V GND
+5V
+5V GND
+5V
+5V GND
+5V
+24V GND
+24V
+24V GND
+24V
+24V GND
+24V
EXIT
+24VS
FUSER ON
+24VS
MOTOR B*
CLUTCH
MOTOR_PB
FAN
DEV_FUSE
MOTOR_A*
NEW_DVE*
MOTOR_PA
2-2 PCL Connection Diagram(ML-1250)