Using TV as a monitor - need help please :)

Discussion in 'MacBook Pro' started by JoeBee, Apr 21, 2011.

  1. JoeBee macrumors newbie

    Joined:
    Apr 21, 2011
    Location:
    England
    #1
    Hi guys, i've tried to solve this problem myself but i just can't get my head around it.

    I'm using a Macbook Pro 2.26ghz, i'm aware this model can't transfer audio via hdmi, but I have a mini display port to hdmi adapter and i have used a hdmi wire to connect to my 32lg5700 television, this give me perfect visuals on all 3 of the televisions hdmi ports.

    I then got a 3.5mm jack to rca (white and red) and connected it to the headphone jack on the macbook to the two rca ports on the side of the television.

    here's the confusing bit, i'm getting visuals on the hdmi, and audio on the av3. i can't link the two, can anybody give me any suggestions?

    this link provides my televisions details: http://www.superfi.co.uk/index.cfm/page/moreinfo.cfm/Product_ID/4609

    this link is the specifications of my macbook pro 13" 2.26ghz: http://support.apple.com/kb/SP541

    using these products to connect the tv and mac together:

    http://www.amazon.co.uk/gp/product/B000Q6LSWM/ref=pd_lpo_k2_dp_sr_3?pf_rd_p=103612307&pf_rd_s=lpo-top-stripe&pf_rd_t=201&pf_rd_i=B000FAHG9I&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=0H8D0X5KD3MJD8X7TGXZ


    http://www.amazon.co.uk/gp/product/B003YVYOHC/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=103612307&pf_rd_s=lpo-top-stripe&pf_rd_t=201&pf_rd_i=B000NJUKDU&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=0PW0CADMXR6YZV0XG46Y


    http://www.amazon.co.uk/DisplayPort-Adapter-Converter-Cablesson-Unibody/dp/B002WSM2N6/ref=sr_1_2?ie=UTF8&s=electronics&qid=1303391546&sr=1-2



    thanks :) JoeBee
     
  2. jimmyhii macrumors member

    Joined:
    Dec 31, 2010
    #2
    Hey there,

    if your tv works the same as mine, i believe that the hdmi and rca inputs go to different channels. reason being that input ports on the tv are usually grouped by channel (hdmi, av1, av2, etc.). Since HDMI is meant to carry audio too, i think LG might not have put any other way to carry audio into that hdmi channel.

    took at look at the manual for your model (here - page 8, is that right?); have you tried connecting to the DVI/HDMI port (the lower port labelled under [5] in the diagram), and then connecting the audio using 3.5mm male-male cable to port [2] in the diagram?

    from my understanding of the manual, the audio port [2] is meant to supplement DVI or RGB input, so using the DVI port should work with that.

    Hope this helps :) haha sorry if it doesnt, i usually do things by trial and error :p
     
  3. JoeBee thread starter macrumors newbie

    Joined:
    Apr 21, 2011
    Location:
    England
    #3
    Hey! thank's for your reply, i did try this before, but i plugged it into the wrong hdmi port! i tried this again with the lower hdmi port and it worked! I now have both audio and visuals! Thank you very much, I really appreciate your help :)

    - JoeBee
     

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