Samsung ML-1755, Service Manual, Page: 95 / 116

10-2
CONNECTION DIAGRAM
Samsung Electronics
Training Manual
10.2 SPL Model
+24 VS
GND
*P MOTOR
*L RE ADY
EXT_ CL K
*H SYN C
+3.3V
*L D_ ON
VD O
GND
LSU
POLYGON
MOTOR
LD DIODE
LE D_ ERR OR
LE D_ DATA
*K EY_D EMO
+3.3V
PTL
1
2
T HE RM
T HE RM2
1
2 1
2
THERMISTOR
MOTOR
DCU
HOST
COMPUTER
A
A/
1
2
3
4 1
2
3
4
B
B/
CN9
CN6
CN7
CN8
CN5
CN1
CN5
CN12
CN3
SMPS
+3.3V GN D
+3.3V
+3.3V GN D
+3.3V
+3.3V GN D
+3.3V
+24 V GND
+24 V
+24 VS
+24 V GND
+24 V
+24 V GND
+24 V
*E xit Se nso r
*FU SER ON
HV PS
+24 VS
*BIA S PWM
SPL
MAIN
BOARD
FR-4, 2Layer
4P IN
CONN-E CTOR
fo r
US B
USB CABLE
+ 3.3V
D CU _D AT A
1
2
3
4
1
2
3
4
D CU _C LK
G ND
*Manu a l Se nso r
CN5
GND
+24 V
M_ Cl utch
1
2
+24 V
C _C lutch
1
2
FAN
PANEL
*TH V PWM
*TH V Ea nb le
THV Re ad
*MHV P WM
FAN
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
1
2
3
4
5
6
7
8
9
1 0
1 1
1
2
3
4
5
1
2
3
4
5
6
1
2
1
2
1
2
SPL
MAIN
BOARD
FR-4, 2Layer
PTL LED ARRAY
MANUAL CLUTCH
CASSETTE CLUTCH