Lexmark C77x Service Manual page 342

C77/c78 series
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5061
See
"System board" on page
Connector
J12
Option DRAM Socket
J13
Transfer HVPS
J14
Cover open switch
(+24V dc switched)
J15
Fuser stepper motor/yellow BLDC
motor
5-10
Service Manual
5-7.
Pin no.
Signal
1
ITU_TX_ENA_OUT (active low)
2
ITU_TX_CUR_PWM_OUT
3
ITU_SERVO_IN
4
ITU_TX_PWM_OUT
5
CMY_TX_ENA_OUT (active low)
6
K_SERVO_IN
7
K_TX_PWM_OUT
8
C_SERVO_IN
9
C_TX_PWM_OUT
10
M_SERVO_IN
11
Y_TX_PWM_OUT
12
Y_SERVO_IN
13
M_TX_PWM_OUT
14
Ground
15
+24V_SWITCHED
16
N/C
1
+24V To Cover Open Switch
2
+24V dc Switched
1
Y_ON_OUT
2
FUSER_ON_OUT (Fuser current I0)
3
+5V dc (Through fuse F8)
4
+5V dc (Through fuse F8)
5
Y_DIR_OUT
6
FUSER_DIR_OUT (Fuser phase B)
7
+24V _Y_AND_FUSER (Through fuse F3)
8
+24V_Y_AND_FUSER (Through fuse F3)
9
Ground
10
Ground
11
Y_CLK_OUT
12
FUSER_CLK_OUT (Fuser Phase A)
13
Y_HALL_IN
14
FUSER_HALL_IN (Fuser Current I1)
15
N/C
16
Ground

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