Question about Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

Sharp Aquos Audio Intermittent

I purchased an Sharp LC-46D64U about 2 months ago. I get a constant intermittent/pulsating audio signal on 2 over-the-air high def channels (2.1 & 7.1) even though the signal is strong. Sharp customer service had me install Firmware Upgrade U0709111 which did not help. Has anyone else had this problem and gotten it fixed? If so, how?

Posted by on

  • 2 more comments 
  • suthemb1 Aug 06, 2008

    My Sharp Aquos LC46D62U is having Sound problems. It seems to be dropping every fourth or fifth word. COMCAST says it is not a problem with their equipment. Any ideas?

  • pdebotton Feb 22, 2009

    I had one channel 16-1 the audio was so bad that I couldn't use that station. Station 16 has the same broadcast 16-1 & 16-2 so I use the 16-2, this was a problem from the 1st day I received the TV, I called Sharp and they told me that it was a station problem via my Antenna. They recomended that I purchase cable. I have 3 other LCD TV's in the house and they have no problems with 16-1 audio. 5 months later, today I now have 4-1 statrion with the same problem, I think that itys the HDTV tuner, but Sharp is holding on the broadcast signal, No other TV's in the house have this problem, and they are all off the same antenna, I even swapped the TV locations and the problem moved with the TV. So does Sharp want me to give up and goe away. I did purchase a 5 year extended warranty and will call it in next week. any ideas?

  • Anonymous Apr 06, 2009

    I have a 13" Sharp Aquos and I have the same problem. 2 channels don't have sound and a few others have a skipping problem now and then. I am certain it isn't the cable TV signal. There are so many other complaints floating around the internet, that it must be a huge Sharp defect. A friend of mine has a Sharp and his sound died a few months ago. His is a big TV hooked up to digital cable, so he just decided to add a surround sound system to avoid the cost of repair. Mine is a small kitchen TV, so I can't go this route. Anyone have a solution out there?

  • Anonymous Mar 31, 2014

    After clicking ok to update it says will go black before update screen appears and it goes black 2 sec later channel comes back on and no update



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 17 Answers

This is a problem with the ATSC channel's reception. Usually switching to another channel and back solves the problem.

Posted on Feb 20, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Sharp lc 46D64U - Audio out seems right channel of output not functioning. I switch cables over and there is no sound on right side. Is there any others with this problem. Will a reset of system cure this...

Check your user menu in the audio functions and make sure your balance is set properly. Also check the resistance of your speaker. It probably needs replaced.

May 18, 2012 | Sharp LC-46D64U 46 in. LCD HDTV

1 Answer


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 (rubbing alcohol works quite well). Despite what the images say,

This kit is Sharp Part Number: PSPKIT663WJZZ and is available from for $19.95.
It’s possible to get the heat pad only, Sharp Part Number: PSPAZA663WJKZ for only $9.95.

Jun 21, 2009 | Sharp LC-26D4U 26 in. LCD Television

1 Answer

Sharp aquos 46 picture disappears intermittently

it might mean there is an intermittent connection or cold solder joint somewhere inside the set.
But I wouldn't just settle on that.
Here are some other things to check:
1) Replace the batteries on your remote control.
2) Try resetting the logic functions on your tv by unplugging it for a minute, then plugging it back in.
3) Try covering up the infra-red receptor on the front of your TV to see if you're getting unwanted signals from the receptor. taping a piece of foil over that area is perfect. If it doesn't stop after doing these two things you'll probably need to take it to a shop.
4) If this does stop it, then look for unexpected signal sources. Have you added a remote control extender? Added a new device to your audio-video system? Changed to a new remote?
Here is what I suggest:

ONE: Give it a hard reset. Possibly the software codes in the power management are corrupted. Just unplug the tv line cord for 4 hours. That will reset everything internally to factory defaults.

TWO: Give it the old whacking test. Just bang on the cabinet in many places with your hand or fist. That will restart any cold solder joints or loose connections.

THREE: If the above procedure does not help, then you will have to call in an expert tv tech; OR just live with it and put in a line cord switch so that when it is OFF, it is really OFF.

Jan 17, 2009 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

Sharp Aquos 37" Audio Static Issue when watching DVDs

i have had to replace the hdmi input board on these units to fix them.

Jan 08, 2009 | Sharp Aquos LC-37G4U 37 in. HD-Ready LCD...

1 Answer

Sharp lc-46d64u broken screens

if the screen is broke its not worth the repair

Dec 07, 2008 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

2 Answers

Sharp Aquos LC C3242U - Intermittant Sound Switching from Mono to Stereo

Not sure if I just got lucky or if the problem is solved..I hooked up my Sharp Aquos LC-32D64U the other night and I had the blue audio box pop up. Mine was only in Mono and would not switch to Stereo...Well, Local cable company is of of Hi-Def boxes but I thought what if my Digital box is bad/old or has some sort of problem. I went down to comcast cable company switched to a different digitial box..came home, hooked it up and so far no blue audio box, plus now it shows that it's in stereo..good luck

Aug 30, 2008 | Sharp Aquos LC-32GD4U 32 in. LCD HDTV

1 Answer

Sharp LCD LC-46D64U

Try resetting the TV. Here's how to do it - Unplug the TV's power cable. Keep the Channel Down and Volume Up buttons on the TV pressed and plug the power cable back into the outlet. You will hear a click when you plug it back in if the reset is successful. Hopefully this should restore your video and audio.

Dec 25, 2007 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

16 Answers

Audio Problems with Sharp Aquos T. V.

Just talked to a fellow at Audiotronics regarding Sharp Aquos.
This is a widespread problem with audio on their TV's, The tech. said there may be a full recall regarding this problem!!!

Nov 10, 2007 | Sharp Aquos LC-37G4U 37 in. HD-Ready LCD...

Not finding what you are looking for?
Sharp Aquos LC-46D62U 46 in. LCD HDTV Logo

819 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74887 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jaime Hernandez

Level 3 Expert

2326 Answers

Are you a Sharp Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides