TD-3, TD-3SW, TD-3SV: Where's the Serial Number?
The serial number for the TD-3 is located on the underside (bottom panel) of the unit. It contains 2 letters followed by 5 numbers- i.e. (ZR 12345). If you have already setup the kit, you will need to remove the 4 screws from the mounting plate. If you are sending in your warranty registration for the entire TD-3 set, use the TD-3's serial number only.
Note: It is not necessary to list individual serial numbers for each pad or cymbal.