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Up & Down Channel Buttons and Sound Adjustments

Our TV is the Hisense LCD Colour TV, LCD19W57CA model. We bought it on Thursday 11, 2008. Can you tell me, even if and when I find out myself by the time you reply, why the channel buttons (CHA Up & Down) don't work when I set the Channels to Cable? They work with the Air setting. I'm a disabled person and I like the function of CHA Up & Down buttons instead of always using the Numeric Keypad. The other problem is the Sound adjustment. Right now, the sound is like if the sound is coming out of only one speaker and the sound is mono and the pitch is not clear. I'm having a difficult time figuring it out. I asked Hisense but I'm not sure they understand the problem. For one thing, the guy told me via email that the remote needs to be programmed with the Hex code to enable the Channel Up or Down buttons to work but Videotron, our cable company in Quebec doesn't even know what that is. Right now I use the numeric buttons to change the channels. The other thing I don't get is the Sound mode thing. Sound mode has four settings: Music, Standard, Speech and User. When I press the Sound mode button I can't change the setting. No instructions apear like what arrow buttons to press like Cha (channel) Up or Down; or Vol (volume) Up or Down to change the setting. Same with the Picture Mode. The settings are Bright, Standard, Soft and User. Both are at User and I have no way of changing the settings.

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  • Anonymous Nov 27, 2008

    my channel up and down button don't work on my vizio 37" remote

  • Anonymous Nov 27, 2008

    Channel Up and Down don't work on my vizio remote. I got the TV yesterday, plugged the cable in today, and voila, remote's Channel button is dead. We have another vizio in the house, so I tried that remote with the new LCD. Still no response on changing the channel, so I don't think it's the remote.

  • tt73065 Dec 15, 2008

    My channel up and down will not work. It did work and I had to make some adjusted to the tv and now it won't work.

  • yardi112003 Dec 30, 2008

    i bought the 32" vizio lcd from walmart and had to return it a couple times because of the same problem....then channel buttons on the TV and also the remote doesn't work....i just gave vizio another chance because i like the way the vizio looks for the price and the 32" plasma doesn't work also. i found that i had to reprogram the channels everytime that i had to watch the TV... so that might be a temporary fixture for you i guess.

  • SteveYoder Jan 18, 2009

    I have the same problem with a 42" LCD and will probably order a new Main Board Assembly from Vizio. New they are $300+ but are half the cost for a Refurbished. Since everything else works I'm thinking that is the problem, by guess is dust causing a static discharge on the board or maybe a slight power surge caused the problem.



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SOURCE: tv channel problem

- I think you mean model P42. You can get the user manuals here:- Note that the quickstart guide file is broken. You have to allow pop-ups, select the model and the manual will appear in a new window then you can save/print. Hope this helps! -

Posted on Oct 05, 2007


SOURCE: Channel changing on PROSCAN 32LA25Q

I had the same problem, what fixed it for me was to set auto scan to setup all the channels for me again. Another thing to check would be whether it is set up to use CATV or AIR.

Posted on Dec 30, 2007

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SOURCE: iLO LCD Color HDTV does not change channels / volumn...just turns on/off

You need a new control board for your tv...
Thank you

Posted on Apr 29, 2008

  • 6966 Answers


Hi again,

Many thanks for the wonderful review and the rating.

Good luck and kind regards.

Thank you again for using FixYa.

Posted on Nov 07, 2008

  • 26 Answers

SOURCE: The tv's green light comes on but there is no

your main board has gone bad. Can be fixed, in my shop it would cost about $250. It is a real shame on the industry that these things last about 2 years or less. Hope you held on to your old crt style tv.

Posted on Jun 17, 2010

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