TV service mode codes

[tontrack]

I live in Cuba, so is very hard for me to get information.
Ladies and Gentelmen P L E A S E help me by sending me all the tv service mode codes you estimate I should know. I´m a student and hobbyst.
Thank you a lot
my mail is [email protected]

 

[hanyutv]

Ihave a large volume of service modes
just tell me the mark or the model of tv and i will send you how to enter service mode