Touch Panel Controller Board Date Code
A label is located on the back of the controller board. The product part number, product version number, and manufacture lot number are printed on the label.
Example:

| Part number: | N16B-0558-0270 | ||
| Product version: | 02A | ||
| Manufacture lot: | U800001 = August 2005 Serial No. 00001 | ||
| 2005 - U | Jan - 1 | Oct - X | |
| 2006 - V | Feb - 2 | Nov - Y | |
| 2007 - W | Mar - 3 | Dec - Z | |
