There are two types of digital audio connections.
1.Coaxal digital, uses an RCA connector and the cable is 70ohm coax.
2. Toshlink optical, which uses a fiber optical cable ( did you see a red glow??) and the conector has a cover to kepp dirt out. I think this is what you have. John
why does my digital audio out on my panasonic th-42 pd50u have a cover over the conection output and when you remove the cover there are only pins on a panal which you can,t use without some kind of adaptor. help?.

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