Samsung ML-1200 Series Repair Manual page 5

CONNECTION DIAGRAM
2-2 PCL Connection Diagram(ML-1250)
IEEE1284
COMPATI ABLE
CABLE
HOST
USB CABLE
COMPUTER
+5V
1
DCU_DATA
2
DCU
DCU_CLK
3
+5V GND
4
+5V
1
SENSOR
PEMPTY
2
FEED_SENSOR*
3
BOARD
+5V GND
4
+24V
1
COVER
Not Use d
2
SW ITCH
+24VS
3
THERM_A
1
THERMI STOR
THERM_B
2
+24V_SLEEP
1
+24V GND
2
THV PWM
3
THV _EN
4
HV PS THVRE AD
5
M H VP WM
6
BI ASPW M
7
+5V
8
+5V GND
9
Repair Manual
2-2
36
J1
CN12
PI N
4PI N
CONN-
CN7
ECTOR
f or
U SB
CN5
1
2
CN9
3
PCL
4
CN4
Main
Board
1
*
2
CN6
3
4
1
2 CN8
3
CN3
1
CN11
2
1
2
3
CN2
*
4
5
*
6
7
8
9
- This Document can not be used without Samsung's authorization -
+24V_SLEEP
1
1
+24V GND
2
2
P MOTOR *
3
3
LREADY*
4
4
EXT_C LK
5
5
HSYNC *
6 1
+5V
2
7
+5V GND
8 3
LD_ON *
4
9
VDO
5
10
+5V GND
11 6
+5V
1 1
+5V GND
2 2
LED_ERROR
3 3
LED_PAPER
4 4
LED_DATA
5 5
LED_TONER
6 6
KEY_TONER*
7 7
KEY_CANCEL*
8 8
KEY_DEMO*
9 9
+5V
1
1
PTL
2
2
+5V GND
1
1
+5V
2
2
+5V GND
3
3
+5V
4 4
+5V GND
5 5
+5V
6
6
+24V GND
7 7
+24V
8 8
+24V GND
9 9
+24V
10
10
+24V GND
11
11
+24V
12 12
EXIT
13 13
+24VS
14 14
FUSER ON
15
15
+24VS
16 16
MOTOR B*
17
17
CLUTCH
18
18
MOTOR_PB
19
19
FAN
20
20
DEV_FUSE
21
21
MOTOR_A*
22
22
NEW_DVE*
23
23
MOTOR_PA
24
24
POLYGON
MOTOR
LSU
LD DIODE
LED
DISPLAY
PANEL
PTL LEDARRAY
CN502
SMPS
FUSER
CN5
SOL E-
CN1
NOID
S TEP-
ENGINE
C N 2
PING
MO TOR
DEV_FUSE CN3
CN4
FAN
ENG I NE + SM PS
Unification ' d
B
Samsung Electronics