Lexmark X642e Service Manual page 405

System board (see "System board" on page
Connector
J7 USB port
J8 Cover closed switch
J10 Fuser DC
J14 Signature button
J15 HVPS
5-3) connector pins
input sensor
Cartridge toner wheel sensor
Pin no. Signal
1
2
3
4
5
6
7
1 Cov Closed
2 Ground
3 +5 V dc
1 NARMEDIA*
2 Ground
3 THERM
4 Ground
5 THUMP
6 +5V dc
7 THUMPRET
8 EXIT SNS*
9 +3.3 V dc
10 I2C CLK L5
11 I2C DAT L5
1 SM Cart
2 Ground
1 ATSERVO
2 TXENABLE
3 XFR
4 24 V dc switched
5 CHARGE
6 Ground
7 DEV
8 Ground
9 INPUTSENSX
10 +5 V dc switched
11 +5 V dc
12 TONER WHEELX
13 Ground
Locations and connections
7002-xxx
5-5