Question about Sharp LC-26D4U 26 in. LCD Television
I have the LC-26D4U Sharp Aquos model tv. Everything has worked fine for the 18 months or so that I've had it but now it seems as if something is internally wrong with the speaker connection. When the TV first turns on I hear a popping sound come from the right speaker. The first time this happened I turned the TV on and off a few times and the problem fixed itself. Since then, however, I hear that popping sound (just from the right speaker) and I get no sound. When the sound did work, both the left and right speaker worked fine and I still only heard the popping sound from the right speaker. I have tried different connections (HDMI, component, regular video/audio cables) and still nothing. It is certainly something internal that is the problem and I was wondering if you have heard of this problem before and know of a solution or advice. I am out of warranty and do not want to pay a few hundred if this is something I can easily fix myself.
Thanks for any help.
I also have a LC-D6U 32" set and the sound has magically disappeared. I can run the sound thru my stereo but nothing from the tv directly. Sharp doesn't offer any answers, especially for a set out of warranty, and the repairman wants a fortune just to come look at it. Hoping someone knows of a solution - possibly a short or something simple.
This unit has a chronic problem with the insulator material used on the heat sink on the ic's on the AV Bd. The unit must be disassembled and the AV bd. removed. The insulation on especially IC 2502 breaks down and must be cleaned off of the bd. and the ic and new insulator part # PSPAZA663WJKZ must be ordered and used as the insulator pad. If you send me an email to email@example.com I can send you the copy of the Sharp technical bulletin LCDTV-194.
Posted on Feb 26, 2008
For .99 cents I bought an RCA male stereo to mini (3.5mm) female adapter and connected it to the Monitor Out. Then plugged in a set of computer speakers that I had sitting around, and in the audio menu set it to variable, which allows me to adjust the volume with the remote. There are great sounding speakers available with a sub-woofer for about $30. It is a very simple fix, and the sound is much better than the speakers that Sharp built in to the TV. No need to open the TV, find the bad bored or replace anything. From Sharp failures come Sharp fixes. AW
Posted on Sep 27, 2009
I used your site to look up a problem awhile back and was helped by a guy who went by, Les Price (firstname.lastname@example.org). I wanted to post the results of what he suggested, however the site will not let me type in the “solve” box, after the box opens. Can you post this for me.
I purchased a Sharp LC-26D4U LCD television and after about 16 month, the sound went on the TV. I could not get anything but popping noises out of the speakers. I hooked the TV up to a stereo and the sound worked only while using the stereo speaker from the stereo, still nothing from the TV speakers.
I searched this problem on your web site and saw a posting in which this Les Price (email@example.com) posted a fix. He stated this unit had a chronic problem with the insulator material used on the heat sink on the ic’s on the AV bd. He stated the unit had to be disassembled and the av bd removed. He stated the insulation on the ic 2502 breaks down and must be cleaned off and that a new insulator, part # PSPAZA663WJKZ must be ordered and used as the insulator pad. He stated there was a Sharp Technical bulletin LCDTV-194, which explained the problem and suggested this fix.
I Goggled the suggested part #, PSPAZA663WJKZ finding and ordering the part from www.electronics-storefront.com. I got a copy of the service bulletin, which had pictures and instructions on the repair.
On 25-Jan-09, I disassembled the TV, removing the back, a metal mount under the plastic back, and three circuit boards, locating the heat sink on the back of the AV board. I left the black sticky residue on the heat sink as the service bulletin suggested and installed the new insulator pad as shown on the service bulletin. I put the TV back together and found the TV volume to work again. I could not believe it worked.
Taking the TV apart made me a little nervous. I am not a repairman, however I do like to, “Tinker” with stuff. There were a lot of screws and wires to keep track of and a little tricky to put back together. If I had to do it again, I would either video tape the disassembly to make sure I replaced everything back the way it was, or at least take a few photos while disassembling.
I just wanted to say thanks for your web site and thanks to Les Price for his help. You both saved me some cash.
Posted on Jan 26, 2009
Thank you C E T and Russds. It worked! I found the part at partstore.com and it costs me $22.88 (even though the bag for the insulation material says it costs 600 yen). Don't mind the mark up when it works (the last time I tried fixing a tv, I ended up breaking the lens).
Posted on Jul 19, 2008
I found a post elsewhere on this site by Ggleg,his post started me in the right direction,what seems to be the problem with several models in this series is the heat-sink insulators break down and start leaking on the chips and boards the worst problem is that under the input board,under ic502 there is a heat-sink that is insulated from the circuitry by one of these insulators,what happens is that the heat-sink slowly works through the insulator and shorts the circuit,there may be a kit to replace the insulating pads for the board.the best solution is to remove the residue(Ggleg said it is conductive also)and replace the pads with a better
material I used silicon rubber sheet and cut to size thickness was about 1/16. Tv has been fine ever since.
Posted on May 25, 2009
I went with the solution posted by C E T. (Thanks for the tech bulletin) First time I ever tried to fix a TV, but I thought I would try it seeing as the part was only $25 shipped. You will be disappointed when you see what i consists of, but guess what - it worked. It took me a little hour and it works perfectly. It takes little patience and a lot of guts to try it. First time back together, nothing worked, but who ever heard of fixing a TV for $25. I have now. Thank you CET.
Posted on Apr 28, 2008
I am also looking for the copy of the Technical Bulletin LCDTV-194? Can someone email firstname.lastname@example.org. I am pretty handy - will I be able to do this myself without destroying the tv? Tips?
Posted on Mar 08, 2009
Send the Sharp to the garbage heap and buy a TV from a company that knows how to make one
Posted on Sep 08, 2008
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Posted on Jan 02, 2017
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