We have a all purpose

Question

we have a all purpose logitech hand set for a remote controll for our surround sound system on the battery it says logitech s.s/n:nta2340 l/n:0606 could you please send me the instructions on how to use it as we have sound but no picture and we have a brand new tv and the guy who set it up didnt know how to use it and the place were i brought it from has go bankrupt so if you could help it would be grate thanks Cyndi