Samsung ML-1200 Series Repair Manual page 4

2
2. Connection Diagram
2.1 GDI Connection Diagram(ML-1210/ML-1220M)
IEEE1284
COMPATI ABLE
CABLE
HOST
COMPUTER
1
2
DCU
3
4
1
SENSOR
2
BOARD 3
4
1
COVER
2
SWITCH
3
1
THERMI STOR
2
1
2
3
4
HV PS
5
6
7
8
9
Samsung Electronics
36
J1
PI N
4PI N
USB CABLE
CONN-
CN3
ECTOR
f or
USB
+5V
1
DCU_DATA
2
CN1
DCU_CLK
3
+5V GND
4
GDI
Main
+5V
1
*PEMPTY
2
CN7
Board
* FEED
3
+5V GND
4
+24V
1
Not Use d
2 CN11
+24VS
3
THERM _A
1
CN12
THERM _B
2
+24V_T
1
+24V GND
2
THV PWM
3
CN8
*THV _EA
4
THVRE AD
5
* M H VP WM
6
BI ASPW M
7
+5V
8
+5V GND
9
- This Document can not be used without Samsung's authorization -
+24V_T
1
+24V GND
2
*PMOTOR
3
+3. 3V
4
EXT_C LK
5
* HSYNC
CN9
6
+5V
7
+5V GND
8
* LD_ON
9
VDO
10
+5V GND
11
+5V
1
+5V GND
2
LE D_ERROR
3
LE D_P APE R
4
LE D_D ATA
5
CN13
LE D_TONE R
6
* K EY_TON ER
7
* K EY_CAN CE L
8
* K EY_DEM O
9
+5V
1
CN6
PTL
2
+5V G ND
1
+5V
2
+5V GND
3
+5V
4
+5V GND
5
+5V
6
7 +24V GND
+24V
8
+24V GND
9
+24V
10
+24V GND
11
+24V
CN5 12
EXIT
13
+24VS
14
FU SER ON
15
16 +24VS
* EGMO T _B 1
17
CLUTCH
18
EGMOT _PHB
19
FA N
20
DE V_FUSE
21
* EGMOT _A1
22
* NEW_DEVE
23
EGMOT _ PHA
24
CONNECTION DIAGRAM
1
POLYGON
2
3
MOTOR
4
5
LSU
1
2
3
LD DIODE
4
5
6
1
2
3
LED
4
5
DISPLAY
6
7
PANEL
8
9
1
PTL LEDARRAY
2
1
2
3
4
5
6
7
CN502
SMPS FUSER
8
9
10
11
12
CN5
13
14
15
16
17
SOL E-
CN1
18
NOID
19
20
S TEP-
ENGINE
C N 2
21
PING
22 MO TOR
23
DEV_FUSE CN3
24
FAN CN4
ENG I NE + SM PS
Unification ' d
B
Repair Manual
2-1