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Phaser 3120
Service manual
Xerox Phaser 3120 Service Manual page 63
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CONNECTION DIAGRAM
7.2 Phaser 3120
HOST
COMPUTER
1
THERMISTOR
2
1
2
MOTOR
3
4
1
2
DCU
3
4
Service Manual
7-2
4PIN
USB CABLE
CONN-E CTOR
for
USB
CN3
THE RM
1
THE RM2
CN5
2
A
1
SPL
A/
2
B
CN7
3
MAIN
B/
4
BOARD
FR-4, 2Layer
+3.3V
1
D CU _D ATA
2
CN2
D CU _ C LK
3
GND
4
LSUCLK
1
nLREADY
2
nPMOTOR
3
GND
4
24VS
5
*HSYNC
CN6
6
5V
7
GND
8
nLD_ON
9
VDO
1 0
GND
1 1
+3.3V
1
CN8
PTL
2
+24V
1
CN9
MP_CLUTCH
2
+24V
1
CN3
MAIN_CLUTCH
2
P_EMPTY
1
P_FEED
2
3.3V
3
3.3V
4
3.3V GND
5
3.3V GND
6
5V
7
3.3V GND
8
3.3V GND
9
3.3V GND
10
24VS
11
24VS
CN10
12
MP_EMPTY
13
24VS
14
LED_READY
15
THV_READ
16
LED_ERROR
17
THV_PWM
18
THV_EN
19
BIAS_PWM
20
MHV_PWM
21
LED_TONER SAVE
22
KEY_DEMO
23
FAN
24
FUSER
25
P_EXIT
26
1
POLYGON
2
MOTOR
3
4
5
LSU
1
2
3
LD
4
5
DIODE
6
1
PTL LED ARRAY
2
1
Manual Clutch
2
1
Main Clutch
2
2
1
4
3
6
SMPS
5
8
7
10
9
12
11
CN5
14
13
16
15
FAN
18
17
PANEL
20
HVPS
19
22
21
24
23
26
25
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