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I have hooked up my PVR to my LG LED TV with a HDMI cable and no mater what ratio setting I put in the full picture won't show on the screen. When viewed through the regular cable it is fine.

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Posted on Jan 02, 2017

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SOURCE: Unable to display HDMI Input

Okay so you have the HDMI cables from both the DVD and the Cable box plugged into the reveiver?

Posted on Feb 28, 2008

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SOURCE: Low volume on LG HDTV

I encountered the same thing using the HDMI interface on my new TWC cable box (Motorola DCX-3200). After a little bit of research, I finally fixed it by changing the digital audio mode in the cable box using this procedure:

1. Be sure the TV is on and connected to the cable box.
2. Using the cable box remote turn power OFF.
3. Immediately press the MENU key on the remote. The USER SETTINGS menu should appear on the TV screen.
4. Select the ADDITIONAL HDMI SETTINGS >>> menu item.
5. The ADDITIONAL HDMI SETTINGS menu will appear.
6. Scroll to the AUDIO OUTPUT item and select this.
7. Change the setting from AUTO to L-PCM.
8. Return to the main page
9. Using the remote, cycle power OFF.
10. When the cable box is turned on again, you should be good to go.

I realize these instructions are specific to the DCX-3200, but there may be a similar setup option available in your cable box as well.

The problem here is that the cable box is by default configured to use Dolby Digital audio, which requires an additional 10dB of headroom to deal with the boosted LFE channel. If the cable operator hasn't taken pains to set the system up correctly (and most haven't, apparently), the digital audio level sent on the HDMI interface will be approximately 11dB down from normal analog line levels on the HDTV channels. Changing to straight linear PCM sets the TV receiver audio level on the HDTV channels to match the levels on the non-HD channels.

The only problem with this fix is that if you intend to feed a Home Theater receiver that uses Dolby Digital processing with the cable box output you will lose the Dolby encoding feature and be forced into straight 2-channel stereo. For a simple installation like mine where I'm just feeding the TV, this fix works fine. If you have a more complex setup that takes advantage of Dolby Digital features (when it's available in program material), you may have to live with the problem.

For a technical reference on why this happens, see http://www.megahz.com/specimages/Dolby/LM100%20Cable%20App%20Note%2011-05.pdf

Hope this is useful.

Posted on May 22, 2009

  • 3 Answers

SOURCE: PS3 not working on reg tv's after HDMI use on LCD HD tv

Shelley,  the fix for this is simple! Hold down the power button for about 5 seconds and the system will beep. This resets the video setting for your ps3 from HD too whatever the current cables are that you are using too hook up too the tv. This works on my PS3 which I just bought about 3 months ago and should work with the older ones. 

Posted on Jun 05, 2009

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SOURCE: edges of picture being cut off LG 37LG30 LCD TV

Yes, it is possible the settings from your cable box maybe set to the wrong ratio eg:letterbox. Depending on what type of box you have, look in the cable box menu for a settings option, then change the aspect ratio to a different format.

Posted on Jun 30, 2009

  • 7 Answers

SOURCE: LG 42PX4DV - HDMI Audio / PC Audio IN problem

one quick fix you can try. plug in the HDMI cable, slect a digital audio sound output from the sound settings on your machine, then leave it connected and restart it. It just might work.

Posted on Aug 05, 2009

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I tried hooking up my laptop to my 37lh20 tv. I connected the avi to the pc input and an audio cable fro the headset jack on the tv. If I put the tv input on rgb pc I get the picture but no sound and if...


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I have a feeling the headset jack on the TV is an output rather than an input. Most TVs accept HDMI, RCA, or a digital audio input (either coaxial or optical). Unless you have a S/PDIF optical output from your laptop (and you obviously don't have an HDMI output), then your only other choice is likely to get a cable that splits a 1/8" headset type connector into two RCA plugs that you'll plug into an AUDIO IN input on your TV.

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Check the setting on the V+box for a HD setting hook up should improve the picture.Still have the same problems,the HDMI cable it is the problems,changes another HDMI cable

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