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I have a Westinghouse 46" Class LED 1080p 120Hz HDTV,(2.14" ultra-slim) LD-4680 and the volume keeps going down by itself and it keeps trying to switch channels by itself. I have Comcast cable hooked

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I'm having the same problem, it keeps changing inputs and pressing buttons and turning off on its own.

Posted on Jan 28, 2013

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  • Televison & ... Master
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The most common possible cause is the buttons on the set, not the actual plastic buttons but the tiny micro switch (push switch that only should activate when the plastic button touches it)

these go bad and depending on which is bad things happen by themselves.

Lucky that it is not volume up, that is nasty.

The way to prove/disprove this is to get at those--usually they are on a tiny board and if individual ones unsolder the two pins for each (may be more to hold them in place) taking them out of the circuit, set will still work with the remote.

If your troubles are now gone just leave them disconnected and use the remote as only way today to replace is buy that board which will have the same poor quality parts as the old one.


For the tech minded they can be tested with a ohm meter--check resistance with meter set way up to over 20k scale---each has two pins(the switches) and should have ABSOLUTELY no resistance reading unless pressed. I have seen ones reading over 5k or 5,000 ohms and that is enough to act like they are being pressed.

Posted on Dec 06, 2012

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SOURCE: samsung 46 '' HDTV 1080P --------no sound

what is the complete model number of your tv?
does the volume control display pop up with a headphone or speaker sound on tv mode?

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SOURCE: proscan 40 in full 1080p hdtv 60 htz tv and i cant

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SOURCE: I have sony Sony Bravia

check is source is 4:3. set tv widemode to full.

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SOURCE: I ger AMP error ("Pull out AC cable, check your

I had the same problem with a Sharp Aquos 40". Sound just for a second and the message all the time in the middle of the screen, no more sound.
I opened the TV and found a speaker cable (a black one) with the PVC isolation broken and the wire in contact with the chassis. I just isolated it, the sound came back and no more error message.

Posted on Nov 19, 2010

BElectric
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SOURCE: how do I connect a sony dvd player a LG - 42"

Hello Mark,

If the DVD player has an HDMI OUT port, the best way would be to connect an HDMI cable from this port to one of the HDMI IN port on the TV. You will also need to switch the TV to the correct HDMI input mode.

If the DVD player does not have an HDMI port - or you do not have an HDMI cable - to get the best quality video, you should use either an S-VIDEO cable or COMPONENT AV cables. S-VIDEO also requires a separate audio cable, which can be either a standard RCA audio cable (red and white plugs) or a digital optical/coaxial cable - if your player has these ports. Component uses RCA type AV cables with 5 plugs on each end. 3 of these connect to the sockets labelled Pr/Cr Pb/Cb and Y on the back of the player and the back of the TV. The other two plugs connect to the Audio OUT ports on the back of the player and the audio IN ports on the back of the TV.

If you can let me know the model number of the Sony DVD player, I can draw you some diagrams if this would help you. I can also give instructions on the best settings to use according to which type of cable you use to connect and instructions for switching your TV to external input modes.

If you would like further assistance, please reply to me with the full model number of the Sony DVD player by clicking on "Add a Comment" below your question. Please also confirm the correct model number of your LG TV is 42LC2D.

Thanks,
BElectric

Posted on Feb 19, 2011

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