Disconnected AVR 135 sound system from Sony TV, Sony DVD and cable box. When reconnected there is no sound. I checked the Opti

[4359dh1]

Disconnected AVR 135 sound system from Sony TV, Sony DVD and cable box. When reconnected there is no sound. I checked the Optical Audio outputs from devices and they are connected to the audio inputs of the sound system. The speakers work fine when the system is in the radio mode. Not certain what else I am missing. Send information and the how to do please.

 

[helpstar]

Maybe you switched the audio ports? Source is correctly selected?

Eventually cables are defective?