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TV-Tech1, Technician
Category: Electronics
Satisfied Customers: 5316
Experience:  30 years servicing Tellys
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I have a Panasonic SA-PT480 home cinema does it support ARC

Customer Question

I have a Panasonic SA-PT480 home cinema does it support ARC feature and HDMI 1.4 as I have as I have a HDMI Cable and an optical digital audio cable fitted to my LG TV yet can not get sound to come out whilst I'm watching the Tv
Submitted: 4 years ago.
Category: Electronics
Expert:  TV-Tech1 replied 4 years ago.

Hello, I'm TV Tech1 and I'll be working with you to identify and help you resolve your problem.


Your Home Cinema does have ARC capability, but there are several settings on the unit that have to be set --


1 Radio EXT IN button has to select the ARC input on the home theater

2 Video Priority has to be turned on in the Home Theater's menu

3 Video Format has to be set to HDMI on the unit too.

4 HDMI AV out on your Home Cinema has to be connected to the TV's HDMI In, and it's usually labled as the ARC input on the TV set.


Now...the TV.

We really could use your TV's model number to verify its setup 100%, but usually you do have to turn the TV's speakers off in the Audio menu and select RECIEVER as the sound source.

If your TV has a choice between Stereo/surround, most TV channels are Stereo, not Surround. You may find a choice between PCM stereo and Bitstream Audio (surround).

I don't know if there may be a choice between ARC and OPT out in the LG, but it may be a possibility.


The tuner and any equipment connected to the TV set with HDMI cables should transfer Audio out of the TV's HDMI, to the Home Theater's HDMI.

Scart, or any of the RCA connected inputs are not guaranteed to work with HDMI since those are Analogue audio, not Digital Audio.


If we have your model number on the TV, and if we know what connections you are connected to on the TV set will help us to figure out why you aren't getting sound out of the TV to the Home Theater (HT) unit.


So reply back to me about those TV related questions, and we'll get started, ok?








Customer: replied 4 years ago.

It's a LG42LM760T......I've put the home cinema on ARC but I don't know how to get to video priority so that I can format

Expert:  TV-Tech1 replied 4 years ago.
Do you have the pdf instruction manual for the SA-PT480? I will usually type in "video priority" into the search box and let it scan the manual to find it faster. I do that with all the keywords and that helps on most instruction manuals.

Panasonic's manuals have it, but the index usually isn't self explanatory as most other brands. It's a technique I've used many times.