Where do the cables from a Purtone HPD -710 connect to on to a Emerson tv?

The Purtone HPD-710 system consists of passive speakers that need an amplifier to drive them. Unfortunately, even the subwoofer needs an amp. An Emerson TV will not have speaker outputs, it will have RCA line-level outputs. You must plug the TV into a surround-sound receiver to amplify the signal. Then connect speaker cables from the receiver to the Purtone speakers. Since the sub has no amp, you will need a receiver with a subwoofer amp function, which are not common.