Lexmark X925 Service Manual page 402

7541-03x
Printhead controller board
Connector
CN4
CN5
5-14
Service Manual
Connects to
Black printhead
Engine board
Pin no. Signal
1 HD5V
2 GND
3 HD5V
4 GND
5 HD5V
6 GND
7 HD5V
8 GND
9 HD5V
10 GND
11 HD3V
12 SO-K
13 SCK-K
14 STROBE-K
15 DATA_K0
16 DATA_K1
171 DATA_K2
18 DATA_K3
19 HSYNC-K
20 LOAD_K
21 GND
22 CLOCK-N-K
23 CLOCK-P-K
24 GND
1 MBUSY_IN
2 SUBRXD
3 SUBTXD
4 MOTOR_CLK1
5 MOTOR_CLK2
6 MOTOR_CLK3
7 MOTOR_CLK4
8 GND
9 HTNB1
10 PEPCNG
11 GND
12 THETALED
13 PRG_SW
14 LDPRG