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The sound on my Sharp Aqous LC 37d4U isn't working. I thought perhaps it was the cable company but no sound when I play dvd

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Hi

The issue can be the capacitors on the main board and the way you can tell is to check them visually for swelling or expanding of the top. Almost all intermittent audio or audio failure problems with Sharp Aquos televisions are the result of a relatively simple design flaw involving the heat sink 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, overtime, tends to seep out from between both top and bottom heat sinks onto the legs of this chip as well as onto circuitry immediately surrounding it. If you have electrical expertise and know how to solder and desolder components then it can be a DIY for you, if you don’t then it is recommended to contact a qualified repair technician for the repair/replacement of this IC/capacitors.

Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

Posted on Aug 02, 2009

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1 Answer

Video file format can be played in sharp aqous


Do you want to know the video formats that can be played with this set? Refer its user manual. Its specification page will give you all details. http://electronicshelponline.blogspot.com/

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My audio doesnt work for my Sharp LC-37D4U.


common problem with that unit you will need the main av board replaced

Nov 18, 2009 | Sharp LC-37D4U 37 in. LCD Television

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No sound from LC-37D4U


Have u tries take it apart and reconnect everythings that involve with sound card.
Tries to replace in-out put signals cables link to sound out put?

Aug 24, 2009 | Sharp LC-37D4U 37 in. LCD Television

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No sound on Sharp Aquos 37' LC-37D4U


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.

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 (I used rubbing alcohol which worked quite well). Sharp has issued a service bulletin addressing this issue (LCDTV-194) wherein a ‘2502 Heat Kit’ is specified. This kit is Sharp Part Number: PSPKIT663WJZZ and is available from circuitcity.partsearch.com for $19.95. However, it’s entirely possible to get by with the heat pad only, Sharp Part Number: PSPAZA663WJKZ for only $9.95. Please note that board replacement for this problem is almost never necessary, so if you’re working with a repair technician be sure and insist that he/she be certain to try cleaning the old board and replacing the aforementioned heatsink pads before charging you for a new board.

If one is reasonably familiar with electronics disassembly/reassembly and is willing to take their time, this can even be a DIY project. It is possible to find ‘important service references’ by simply entering LC26D4U (the 5, 6, and 7 series are very similar, and this information covers all screen sizes) into the search field at eserviceinfo.com. This will greatly aid in disassembly/reassembly of the TV, as the A/V board is somewhat ‘buried’ under other boards. Please refer to post # 373 at avsforum.com/avs-vb/showthread.php?t=647174&page=13 for pics of the information detailed here.

Particular thanks are owed ‘Aureius’ of the AVS forums for his research efforts concerning this issue !

Jan 25, 2009 | Sharp LC-37D4U 37 in. LCD Television

2 Answers

LC-37D4U TV sharp aquos


Sorry, the only reason I have tv and video listed on my expertice is becouse of remote controls, people post them sometimes under wrong things so I add the whole thing to get the most problems.

ask another expert, use the find experts link on the front page, slinteriors should be able to help ya

Sep 17, 2008 | Sharp LC-37D4U 37 in. LCD Television

1 Answer

No sound from my sharp aqous 37d4u. The sound was on, turned the tv off, turned it back on later and nothing. Unplugged it, reset it. still no sound.


Good Day;

You stated you have no sound after turning the TV off, and had reset it & still no sound. Well you did the right thing, but are you using a cable or sat. box? If so did you reset those or make those 'boxes' volume's were not turned down.

After resetting the entire system and checking for volume levels it sounds like the LCD may have a defective A/V (audio/ video) board that is really easy to replace. 90% of your audio circuit is on that board.

Good Luck; Big I.

Jun 17, 2008 | Sharp Televison & Video

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No sound on Sharp Aquos 37' LC-37D4U


Call Sharp. They are fixing my 18 month old LC40C32U for free.

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1 Answer

Just blue


Check connections and cables.

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1 Answer

Sound only comes on after about an hour


I had the exact same problem. It was very frustrating to say the least. As it turned out the AV board went out and it cost $600 at total of $800 including labor, which makes this very expensive to replace. I actually had to think about junking the unit before it was even two years old.

Oct 02, 2007 | Sharp LC-37D4U 37 in. LCD Television

1 Answer

Sharp LC-37D4U 1080i picture problem


have the cable company set the box to 720p whic is the native resolution of the set.this will help with quick signal adjustment

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