Samsung ML-1740/XSH, Service Laser Printer Ml-1740/Xsh Manual, Page: 97 / 107

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Samsung Electronics
C O N N E C T I O N D I AG R A M
Service Manual
10. Connection Diagram
ML-1740
Connection Diagram
USB CABLE
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2 1
2
1
2
3
4 1
2
3
4
1
2
1
2
1
2
1
2
1
2
1
2
3
1
2
3
4
1
2
3
4
1
2
3
4 1
2
3
4
IEE1284
COMPATIABLE
CABLE
HOST
COMPUTER
POLYGON
MOTOR
LSU
LASER
DIODE
THERMISTOR
MOTOR
DCU
UART
THERM
A
A/
B
B/
3.3V
3.3V
RXD
TXD
GND
DCU DATA
DCU CLK
GND
THERM2
CN1
CN2
CN7
CN5
CN4
CN3
CN6
CN8
CN9
CN3
CN10
36
PIN
4PIN
CONN-
ECTOR
for
USB
MAIN
BOARD
FR-4, 2L
LSU_CLK
nLREADY
nPMOTOR
GND
24VS
nHSYNC
5V
GND
LD_ON
VDO
LSU_READ
3.3V
PTL
24VS
M_Clutch
P_EMPTY
FEED
3.3V
3.3V
GND
GND
5V
GND
GND
GND
24VS
24VS
MANUAL
24VS
LED_READY
THV_READY
LED_ERROR
THV_PWM
THV_EN
BIAS_PWM
MHV_PWM
LED_TSAVE
KEY_IN
FAN
FUSER_ON
EXIT
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
24VS
C_Clutch
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
1
2
3
4
5
6
PTL LED ARRAY
MANUAL CLUTCH
CASSERRE CLUTCH
SMPS
HVPS
PANEL
SENSOR