Lexmark C77x Service Manual page 344

5061
See "System board" on page
Connector
J18
Low voltage power supply
J19
Magenta/cyan BLDC motors
5-12
Service Manual
5-7.
Pin no. Signal
1 +3.3 V dc
2 +3.3 V dc
3 +5 V dc
4 +5 V dc
5 +24V dc
6 +24V dc
7 +24V dc
8 +3.3 V dc Sense
9 Ground
10 Ground
11 Ground
12 Ground
13 Ground
14 Ground
15 Ground
16 Ground
1 M_ON_OUT
2 C_ON_OUT
3 +5V dc (Through fuse F8)
4 +5V dc (Through fuse F8)
5 M_DIR_OUT
6 C_DIR_OUT
7 +24V_M_AND_C (Through fuse F5)
8 +24V_M_AND_C (Through fuse F5)
9 Ground
10 Ground
11 M_CLK_OUT
12 C_CLK_OUT
13 M_HALL_IN
14 C_HALL_IN
15 N/C
16 N/C
17 N/C
18 N/C