Mitsubishi WS-55311 55" Rear Projection Television "unlock page down lock" Questions

...unlock my keys on my mitsubishi tv model #ws-55311 Here is a link to the owner manual for this model--keyboard lock release is on page 32---might want to down load a copy of the manual as it is ...

...page # 72 to find the factory password. After all this time i finally unlocked my Hetachi and i have the answe so for all who needs a solution im posting it , HOLD UR MUTE BUTTON, AND WITHOUT COMING ...