Computer Speakers to LG HDTV

December 23rd, 2013

Hi all,
A little off topic of this site, but I am guessing a lot of people here have possibly done this at some point. I have some 2.1 Bose speakers which I would like to connect to my LG HDTV. Currently hooked up to the TV via HDMI cables are my cable box, blueray box and Xbox.
I went out of bought a 3.5mm audio cable and plugged this into my Audio output at the back of the television and then attached that to back of the sub /w which the satalites are plugged into. Thinking this should do the job, I turned everything on to find that no sound is coming through the 2.1 set and skill the crappy TV speakers are still in use.
Anyone know what the hell is going on here?
Thanks in advance.

Answer #1
what’s the jack labled ?
headphones work on that jack ?
there a way to enable “line out” or disable “TV speakers” in the TV’s menu
Answer #2
There is no headphone jack. It is via the red and white audio plugs at the back of the television. There is a way to disable the TV speakers but from some reason there is no audio coming through the boss ones when plugged in.
Answer #3
The audio outputs on your TV are for signal only.
You still need to have an amplifier or use active type speakers.
Answer #4
Active type speakers? An amplifier? Why do I need an amplifier when there is a sub woofer? Silly question I am guessing? I have had a browse around on a lot of the different audio forms and they all seem to point to this should be working but it isn’t. Hence I am stumped!
Answer #5
Active speakers are speakers with built-in amplifiers.
Passive speakers are speakers that require an external amplifier.
Which do you have?
Answer #6
I have these
http://www.bose.co.uk/GB/en/home-and-personal-audio/digital-music-solutions/computer-speakers/companion-3-speaker-system/
Answer #7
Plug cable from TV output jack into the input jack (sound source) of the control pod.
Answer #8
No luck with that either.
Answer #9
Reading back over the thread there is a discrepancy.
You state that you are using a 3.5mm audio cable. Is it Stereo? (has two rings on the plug) Have both male ends?
However, you also state that the audio outputs on the TV “is via the red and white audio plugs” which would indicate two phono (RCA) type connectors.
(hence you would need a adapter)
Can you clear this up; because using the the input jack (marked sound source) on the control pod is the only way to connect an additional device to this system.
Answer #10
what are those jacks labeled (for what output, the tuner audio ?) ?
your sure they are out’s and not in’s (AV in 1 or 2 ) ?
will the speakers do digital (optical digital audio out)
what’s the model of the TV ?
Answer #11
The bose system is designed to work with on a PC with the 3.5mm audio jack being the connection to the computer. What I would like to do since I have just broken my pc is to use these awesome speakers for my TV. As mentioned, everything at the moment is connected via HDMI cables leaving all my other input and output sockets free on the TV.
http://www.cablestogo.com/product.asp?cat_id=2009&sku=40424&relatedItem=true
This is the cable I bought, but instead of the Stereo end being female it is male. So the white and red ends are plug into my TV and the male stereo plug I have put into the Sub. Then as mention I tried putting it into the control pod both of which do not seem to work.
Answer #12


Ok, one last “stab in the dark” at this.
For grins & giggles, let’s just check the most obvious.
The top diagram is how it should be connected for use with a computer.
In the bottom diagram shows where the sound source jack is located on the control pod.
First, on the control pod see if the led is lit, the mute touch control is not activated, and the volume control is turned up.
Second, check to see that the power switch is on at the module.
If that all checks out and it doesn’t work and since you are no longer using it with your computer;
then try connecting the TV cable to where the computer would normally connect.
Answer #13
what’s the model of the TV ?
what are those jacks labeled (for what output, the tuner audio ?) ?
your sure they are out’s and not in’s (AV in 1 or 2 ) ?
I’m thinking you will have to connect the speakers to each source with RCA Y-cable splitters as you can only use one component at a time
http://www.cablestogo.com/product.asp?cat_id=2009&sku=03177
if you can’t find a triple splitter you will need to double up the double splitter

Answer #14
you do know if you use the outlet jacks on the tv, you need to go into the tvsetup menu on the remote, and switch from the tv speakers to external speakers, so the tv knows which you intend to use, or by default it will auto play thru the tv, hope this helps, simple but often overlooked,
Answer #15
edwoodweb replied: if you can't find a triple splitter you will need to double up the double splitter
No, he has the correct Y-adapter. It’s a left/right male RCA phono into a female 3.5mm stereo jack which is connected to the audio out on the TV.
Then he has a 3.5mm stereo cable with both male ends to connect from the Y-adapter’s jack to the 3.5mm jack on the system.
bossma02 replied: you do know if you use the outlet jacks on the tv, you need to go into the tvsetup menu on the remote, and switch from the tv speakers to external speakers, so the tv knows which you intend to use, or by default it will auto play thru the tv, hope this helps, simple but often overlooked,
OP claims that he was aware of this.
Answer #16
wwsmithe replied: edwoodweb replied: if you can't find a triple splitter you will need to double up the double splitter
No, he has the correct Y-adapter. It's a left/right male RCA phono into a female 3.5mm stereo jack which is connected to the audio out on the TV.
Then he has a 3.5mm stereo cable with both male ends to connect from the Y-adapter's jack to the 3.5mm jack on the system.

You might have mis-read his post, he has the correct cable, but posted the link to the wrong cable…
bankai.studio replied:
http://www.cablestogo.com/product.asp?cat_id=2009&sku=40424&relatedItem=true
This is the cable I bought, but instead of the Stereo end being female it is male. So the white and red ends are plug into my TV and the male stereo plug I have put into the Sub. Then as mention I tried putting it into the control pod both of which do not seem to work.

Are you sure you have put it into the sound source socket on the control pod, and not the headphone socket.
Answer #17
No, he has the correct Y-adapter.
You might have mis-read his post, he has the correct cable
not for the way I wired it
messed up and put “TV” in the image instead of “speakers”

corrected version
Answer #18
I have done the above appart from Edwoodweb’s diagram as I do not understand it as I cannot even get one of the things working I don’t see how to get three working yet.
Thanks for everyone’s input so far, nothing seem’s to of worked yet Raaaaaaaaaaaaawr!
The TV model is an LG42PJ350
Answer #19
And the bad news is I have just found this on the LG website unless anyone else has any ideas:
The only audio output connection available on this television is the Optical Digital Audio Output jack. This is the only method available by which the television audio would be able to output to any device. If you are in search of a compatible audio system, around the size you have described, we would recommend the LSB316 sound bar. It can mount below your TV, connects to the TV using the Optical cable, and wirelessly connects to its subwoofer. The unit can be reviewed on our website, at http://www.lg.com/us/tv-audio-video/home-theater-systems/LG-home-theater-system-LSB316.jsp.
Answer #20
^^^ That’s what we suspected…No analogue audio output from the TV..
I was in hospital a while back and took along my cordless headphones and though they could plug into their nice new Samsung flatscreen…But same problem…Not even a lousy headphone socket..
What Ed. is suggesting is that you should be able to get an analogue (Red and White) audio outputs directly from the cable box, blu-ray and X-box.
You could use an A/V switch for the purpose (you just don’t use the Yellow(video) connection..This way you could get sound from everything except the TV tuner..Anyhow try it out on one of your devices and see how you go…Connect to the speakers where you would connect a computer.
http://www.satplus.com.au/products/3-Way-AV-Switch.html
Answer #21
If i use the AV set up, do I not then lose HD?
Answer #22
^^ No because you still use HD (HDMI) for the video and audio to the TV..
You only use the extra sound outs for the speakers.
Answer #23
you don’t even need an A/V switch for just audio
as you will be using only one input at a time
and even if you use more that one the audio will just mix and not hurt anything

the diagram is one channel so needs to be doubled
the splitters are RCA jacks in and out
you will need 4 (L&R channels doubled)
plus a dual RCA to 3.5mm to connect to speakers (the one you have should work)
any way you connect analog (red & white RCA) it will be stereo, which is what the speakers are anyway
Answer #24
Just tried hooking up the DVD player with the speakers and it worked perfectly. Is there a way to source all sounds from the bluray player like in the old days when every and anything was hooked up via your VCR.
Answer #25
a VCR had ins & outs (and could act like an A/V switch)
nothing you have has ins, unless they are recorders as well as players
but unless you want to use more than 1 component at a time there is no need for a switch

 

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