Recently I bought a master remote, it can actually operate a number of devices I wanted
To use it on my bush dvd/vcd 2041sil,sony TV model kv-1435m3 and a sony personal radio
But for it to operate it needs a three digit code to operate for each of the devices
But it seems I cannot find the appropriate codes for the devices even though I have the code list. I need help urgently thanks

Check the mfg's web site. Sometimes they add codes. Also your remote may be updateable. But if none of the codes work, then the remote doesn't support that unit.