I Need Help With My Sylvania Tv Does Anyone Know How To Switch Input Modes On A Sylvania TV?

Does anyone know how to switch input modes on a sylvania TV? - i need help with my sylvania tv

Hello, I have a Sylvania WA02 RLK330 (model number) monitor / receiver. Our remote broke long ago, and the interface before the series is not an "entry" or something like that. I really need to change to the inputs, since my PS3 on this TV to play soon. Help please! Could, in fact, if there is no way to do this without a remote control to provide the link to an IR code for the PSP IRShell that is compatible with it, TV is a universal code? Thank you very much.