Samsung MultiXpress M537x series Service Manual page 268

4. Troubleshooting
c) Check if the connector(JR10 8360) J14 on the finisher main board(JC81–07242A) is disconnected.
d) Check if there is continuity in the harness, and if not replace the harness (JR10 8360), replace as is necessary.
e) Replace the stacker bottom limit sensor(SW2).
f) Replace the Finisher main board(JC81–07242A).
4) Is the stacker motor (M8) working?
a) Check if the connector(JR10 8360) of stacker motor is disconnected.
b) Check if the connector(JR10 8360) J14 on the finisher main board(JC81–07242A) is disconnected.
c) Check if there is continuity in the harness, and if not replace the harness (JR10 8360), replace as is necessary.
d) Replace the stacker motor(M8).
e) Replace the Finisher main board(JC81–07242A).
5) Replace the stacker motor gear box(SJ10 6110).
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