Titanic: Adventure Out Of Time

GeneralHint:
Be careful what you do, as some actions cannot be fixed.

Hint: Disarming the bomb:
To disarm the bomb in Zeitel's room, set the left switch to #2.
Next, set the middle switch to #3.
Then, set the right switch to #3.
Wait until the clock goes off, then set the left switch to #1.
Open the case with the key in it.
Get the key and click "OK".
Finally, exit the room.