http://slayo.com/reset-the-lamp-time...specification/
1. Press and hold the Volume + button.
2. Then press the Volume – button.
3. Hold both buttons down for 5 seconds.
-----------------------------------------------------------------------
http://slayo.com/reset-the-lamp-timer-infocus-lp225/
Reset The Lamp Timer InFocus LP225

1. Press and hold the two Brightness buttons on the keypad for 10 seconds, then release.
2. Verify that the Lamp Hour counter was reset by pressing the Menu button and viewing the counter on the status bar.
----------------------------------------------------------------------
De incercat......nu e probata de mine nici una din variante.....