How do i reset my code on the home alarm system OPTIMA RF?

I HAVE A NEWLEC NL 7400N ALARM SYSTEM AND NEED TO RESET THE CODE. PLZ COULD YOU ADVISE ME ON HOW TO RESOLVE THIS ISSUE. THANKS.
AMAR INDUSTRIES, March 2007


done
Here is a downloadable instruction manual.

http://alarmhelp.net/downloads/optima-rf_user_instructions.pdf

Pete, March 2007
link Click here to see other fixes for Optima.