Lexmark T640 - Page 302

5-2 Service Manual
4061-xx0
System board (see “System board” on page 5-1)
Connector Pin no. Signal
J1 Interconnect card
J2 Printhead (laser cable) 1 VIDEO 1+ CN
2 VIDEO 1- CN
3Ground
4LADJ2*
5 VIDEO 0- CN
6VIDEO 0+ CN
7Ground
8 +5PHEAD
9LPOW
10 Ground
11 LADJ* CN
12 LPOW FB
13 LENA*
J3 Printhead (HSYNC)/mirror motor 1 Ground
2 HSYNC CN*
3 HSYNC ID
4+5 V dc
5
6
7
8
9
10
11
12
J4 Main fan 1 FANSTALL
2Ground
3 MAINFAN
J5 Cartridge fan 1 CARTFANSTAIL
2Ground
3 CARTFAN
J6 Hopper full (output bin sensor) 1 HOP FULL*
2Ground
3HOP LED