The thrower restarts play at the appropriate spot with a check and the marker resumes any stall count as follows:

If a player in possession leaves the field due to illegal equipment, the replacing player puts the disc into play. The substitution of the thrower or marker does not alter the stall count.

All players must resume their locations on the field at the time the timeout began (i.e., players may not set up), unless a team timeout is also called.