MAIN TV OPERATING FROMMODEL 2A DECODER - Televison & Video

There may bea firmware update but highly unlikely.

Question edited for correct form of the maker name.

Power cycle both units. Remove mains plug from both for 5 minutes and reconnect. Make sure the television is set the HDMI Source to the Decoder.

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I don't know much about these things but I am guessing the tv doesn't have an in-built cable decoder and a suitable set-top decoder will be needed as an interface.

It shows that your TV speakers are not having issue, try changing the cables of audio both the and decoder side... If still the problem persists check the audio Jack's at decoder and TV for any damage... If still the issue contains either the decoder or TV hardware issue . Kindly contact your local support centre for rectification of issues

I do not have a jvc tv but make sure that it has a digital decoder built in. If it does not you will need a free view box, if it does have a decoder fitted it may be faulty or not tuned correcly, try retuning tv from the main menu.

Either
buy a new television with a digital decoder / receiver

or buy a digital tv decoder that outputs AV on RCA cables whatever the tv has. may be able to tune tv into a particular channel analogue on some decoders. Check decoder and TV input sources. May not have AV input if really old TV.
see
http://www.wisegeek.com/what-is-a-digital-tv-decoder.htm

Try moving the decoder to the other side of the TV, or farther away. The TV audio circuit may be picking up electromagnetic noise from the digital circuitry in the decoder. Another possibility is a defective audio circuit in the decoder.

If you are connecting the decoder to the antenna input on the TV, the problem may be a misaligned (mistuned) audio modulator output in the decoder. In that case, if you have the option of using a different TV channel on both units, try that.

very simple ,, the tv next to the decoder must be conected using a rca cable and then run normal tv cable (RF out ) to the other room

(2a+3b)+(3a+2b)=9+16=25
5a+5b=25 so a+b=5
(3a+2b)-(2a+3b)=16-9=7
a-b=7
a+b=5 and a-b=7 so a=6 and b=-1 therefore 3a-2b=20

The av channel is 0 and then you need to search on channel 0 as i mean tune into the channel