Connection Diagram - Samsung ML-4500/XEV Service Manual

8. Connection diagram

USB CABLE
IEEE1284
COMPATIABLE
HOST
CABLE
COMPUTER
1
SENSOR
2
3
BOARD
4
COVER
1
2
SWITCH
1
THERMISTOR
2
1
2
3
4
H V P S
5
6
7
8
9
Samsung Electronics
4PIN
CONN-
ECTOR
for
USB
CN3
36
PIN
GDI
Main
Board
+5V
1
*PEMPTY
2
CN1
*FEED
3
GND5
4
+24V
1
CN11
+24VS
2
THERM_A
1
CN9
THERM_B
2
+24V
1
GND24
2
THVPWM
3
*THV_EA
4
THVREAD
5
CN5
*MHV
6
BIASPWM
7
+5V
8
GND5
9
+24V
1
GND24
2
PMOTOR
3
*LREADY
4
LSU_CLK
5
*HSYNC
6
+5V
7
GND5
8
*LD_ON
9
VDO
10
SH_CLK
11
CN7
CLUTCH
12
FAN
13
UNUSED
14
DEV_FUSE
15
*NEW_DEVE
16
*EGMOT_A0
17
*EGMOT_A1
18
EGMOT_PHA
19
*EGMOT_B0
20
*EGMOT_B1
21
GND5
22
+5V
23
EGMOT_PHB
24
+24VS
25
+24VS
26
GND24
27
GND24
28
+5V
1
GND5
2
LED_ERROR
3
LED_PAPER
4
LED_DATA
5
CN12
LED_TONER
6
*KEY_TONER
7
*KEY_CANCEL
8
*KEY_DEMO
9
1
CN10
2
+5V
1
+5V
2
GND5
3
GND5
4
GND5
5
FUSER_ON
6
*EXIT
7
UNUSED
8
CN4
GND5
9
GND24
10
GND24
11
GND24
12
+24VS
13
+24V
14
+24V
15
1
POLYGON
2
3
MOTOR
4
5
LSU
1
2
3
LD DIODE
4
5
6
2
STEP-
1
4
PING
3
MOTOR
6
5
8
7
ENGINE
FAN
10
9
12
11
14
S OLE-
13
NO ID
16
15
18
17
1
2
LED
3
4
DISPLAY
5
6
PANEL
7
8
9
1
PTL LED ARRAY
2
1
2
3
4
5
6
7
8
S M P S
9
10
11
12
13
14
15
8-1