Lexmark T620 Service Manual page 120

4069-5XX/7XX
FRU
1 Output Expander Option
2 Output Expander Assembly
Mechanical Linkage
2-92
Service Manual
Action
Make sure the output expander
option is the only option that is not
recognized by the base printer. If the
output expander is the only option
not recognized by the printer,
continue with step 2. If not, check the
autoconnects of the options not
recognized and the interconnect
board and cable connections.
Check the autoconnects for damage,
especially the connector pins.
Remove the left and right side
covers. Remove the front control
board cover. Check the cables at
J1A, J1B, J2A and J2B on the
control board to make sure they are
attached securely and correctly.
Remove the output expander and
check the voltages on the output bin
autoconnect located on the top left
rear of the printer. Go to
"Autoconnect - Top" on
page 5-11. If the voltages are
correct, reinstall the output expander
unit and check the voltages at J1A
and J1B on the connector. If correct,
replace the output expander control
board. If incorrect, replace the output
expander assembly mechanical
linkage.