Panasonic TX-32LM70P LCD - how to enter in service menu?

Hi,

I own an Panasonic TX-32LM70P and I am satisfied with this model. However I want to enter in service menu to do some changes. Does anyone know how to enter in this menu?


I can tell you that I found a way to enter in "selfcheck menu" ("V-" on tv and "i" 3 times on remote); some information are presented in a screen (model, software version, chasis, some options with hexa values) but nothing is modifiable.

Thanks in advance for your help!