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LC-32D6U GETTING NO SOUND - Sharp LC-26D4U 26 in. LCD Television

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LC-32D6U GETTING NO SOUND - 9d12e73.jpg
Almost all intermittent audio or audio failure problems with Sharp Aquos LC**D4U, LC**D5U, LC**D6U, and LC**D7U televisions are the result of a relatively simple design flaw involving the heatsink pad compound used on the Tripath TA-2024 amplifier chip (IC2502) found on the A/V board. This compound has a fairly low melting point and, over time, tends to seep out from between both top and bottom heatsinks onto the legs of this chip as well as onto circuitry immediately surrounding it. Further, over time the seeping compound also becomes somewhat conductive creating bridges which short the audio amplifier circuit causing everything from intermittent audio to complete audio failure.
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Fortunately, in almost every case audio can be completely restored by cleaning the old compound from both top/bottom heatsinks and from both sides of the PC board in the area immediately surrounding the chip (rubbing alcohol works quite well). Despite what the images say,
YOU MUST REMOVE ALL BLACK RESIDUE FROM BOARD. IT WILL NOT WORK IF ALL THE RESIDUE IS NOT REMOVED.

This kit is Sharp Part Number: PSPKIT663WJZZ and is available from Partstore.com for $19.95. http://www.partstore.com/Part/Sharp/Sharp/PSPKIT663WJZZ/New.aspx
It’s possible to get the heat pad only, Sharp Part Number: PSPAZA663WJKZ for only $9.95. http://www.partstore.com/PartSearch.aspx?PartNumber=PSPAZA663WJKZ&hiddenInputToUpdateATBuffer_CommonToolkitScripts=1&x=26&y=14

Posted on Jun 21, 2009

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SOURCE: NO SOUND from Sharp LC-32D6U

Unplug the video cable. Plug back in
If that doesnt help try a different set of cables.
GOOD LUCK,
CNBY

Posted on Jun 03, 2010

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The reason that you may not be getting sound is the cable you are using to connect the computer system to the television. Without that specific information I must speculate that this is the case. The only cable that carries both video and sound is hdmi. If you are using an hdmi cable then you must go to your compute system's sound properties and designate hdmi as the choice. Even if you are using dvi to hdmi it will not carry sound. A VGA (an RGB) cable will not carry sound.

On this television in particular there is input #7, which has an input for the computer system and an audio jack so you would connect an audio cable between the computer system and the television. It does not appear that you have to designate input #7 for audio to the television when doing this. It appears that the sound will come through automatically.

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1 Answer

NO SOUND from Sharp LC-32D6U


Unplug the video cable. Plug back in
If that doesnt help try a different set of cables.
GOOD LUCK,
CNBY

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Try the main resets in the back by the a/v in and out jacks. If this does not work, call Sharp Customer Service and tell them that you already did the resets. There is a known problem with a heat dissipation pad and they will send a repair tech to replace the pad for free, even if you are out of warranty. At least that was the case for my LC-32D6U.

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