TCL HDTV connected to set top box with composite cable. Got video but no sound.

[Rick_73]

TCL HDTV connected to set top box with composite cable. Got video but no sound. How can I fix this? STB menu and TV menu look the same.

 

[americanaudiophile]

If the set top box has a composite video output then it should also have a pair of RCA jacks for stereo audio. An additional stereo RCA cable should do the trick.

 

[Rick_73]

It's a three wire composite cable. Red and white lines are plugged into audio jacks. Yellow = video connection. It produces no sound.