Question about Proscan 26LB30QD 26 in. LCD HDTV

1 Answer

Sound quality poor

I have a digital cable box; my old tv had great sound. The sound from the Proscan has a constant slight hum and is in mono. I cannot figure out how to enable stereo and or eliminate the hum.

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  • gbooth15 Feb 17, 2009

    I purchased a ProScan 26LB30QD TV. It is in a bedroom, and therefore there is only a coaxial cable plugged in the back of the tv (no other cables, no digital box...). When I setup the channels, it asks for me to choose Air, Cable, Cable HRC, Cable IRC or Cable Auto (what do I choose??).



    Additionally, once it completed channel set up, some channels are clear and have good sound. Others look bad and the sound is horrible (there is a constant buzzing). Actual channel numbers come up on the screen weird as well (instead of channel 8, it has channel 51 - 8)? Please help anyone!

  • pscreamer Feb 17, 2009

    I have the same problem with a slight humming in the background.

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1 Answer

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  • Master
  • 1,077 Answers

Try moving the audio and video cables to a different input.
Or the cables maybe bad. That's what happen to me.

Posted on Feb 12, 2009

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Hi, I sent an email regarding the issue to OnCorpus (the company who makes ProScan)

This is what I got back:

---------------------------
Thomas,
Follow these steps to correct humming issue:
1. Turn tv on
2. Input mode should be tv
3. Turn volume to zero
4. With remote enter 9 8 7 6
5. A menu will appear on left side
6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice,
7. Turn up volume and listen if hum is gone.

John
jd@oncorpus.com
---------------------------

I can't confirm if this works at this moment since I don't have access to my TV.

Thomas

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For example, the sound level on my Harmon Kardon goes from -10 (lowest) to 10 (loudest), with 0 being the middle ground. The buzzing was happening when the Harmon Kardon was set to 10, and I was using the cable box volume to adjust the sound. To fix it, I turned down the volume on my receiver to 0, which may be about 50% max volume of the receiver. Then, I switched devices and used the volume on my cable box. This got rid of the static I was getting. Hope that helps.

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This made my humming sound go away completely;


From JD at oncorpus.com [manufacturer of the 32LB30Q]


Please follow these instructions, should fix the hum issue:

1. Turn tv on
2. Input mode should be tv
3. Turn volume to zero
4. With remote enter 9 8 7 6
5. A menu will appear on left side
6. Arrow down to backlight and with right arrow key move number from 81 to 83, press menu button twice,
7. Turn up volume and listen if hum is gone.

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