Lexmark T632 - Cover Closed Switch;Cable Service Check

2-44 Service Manual
4060-xxx
Cover closed switch/cable service check
FRU Action
1 Toner cartridge Make sure the toner cartridge is correctly installed and that the right
and left cartridge tracks are not loose or broken. Make sure the cover
closed switch activation tab on the toner cartridge is not broken and
that the tab correctly activates the cover closed switch spring.
2
Cover closed switch/cable
assembly
Check the cover closed switch for proper mechanical operation. If
incorrect, repair as necessary. Disconnect the cover closed switch
cable from J3 at the system board and measure the voltage at J3-3. It
measures approximately +5 V dc. If the voltage is incorrect, replace
the system board. If the voltage is correct, check the voltage at J3-1.
If the voltage measures greater than +1.0 V dc, replace the system
board. If the voltage is correct, check the continuity between J3-1 and
J3-3 on the cable. If no change in continuity occurs as the switch is
activated, replace the cover open switch/cable assembly. If the
continuity changes as the switch is activated, replace the system
board.
Cover closed switch table
J3 Switch status
Pin number Cover open Cover closed
Pin 1-3 Open Closed
Pin 1-2 Closed Open