Question about Sony KV-XJ29M50 29" TV

KV-XJ29M50 29" TV-Loud thumping sound on startup

I bought this Sony 29" TV Brand Nw about 2.5 years back and it has been working fine. Recently, it has started to give this thumping noise that comes from inside the cabinet and it comes whenever I turn it ON. Also, the picture sometimes becomes grainy and i thought it was some interference but now I have discovered that when picture becomes grainy, if i restart the TV it becomes clear again. This noise is really annoying and the technicians here in NZ thinks normal,though no one has physically inspected the unit, I have spoken to them on the fone. Please advise.

SAGAR CHOPRA Sep 23, 2006

thanks jomaru, but why is is that it has suddenly started giving this problem and why don't other sets that i went and saw in stores give the same nows, is there a way to get rid of it. I have just found the manual and noticed this in the troubleshooting section - 'A boom sound is heard when the tv is turned on."
Possible Cause - "The TV's demagnetizing function is working. This does not indicate a malfunction."

Thanks

1 Answer

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Sergeant:

An expert that has over 500 points.
Expert
337 Answers

Symptoms are not related,what you hear is the high voltage turning on and that is normal if it only does it for less than a second,the grainy picture might be intermitant,dont turn it off,when the picture is grainy tap the side of the set to see if it racts and if it does you know you have a loose conection.This could be outside because of a loose ground on tha cable or inside in the tuner.

Posted on Sep 23, 2006

Anonymous Sep 24, 2006

You are correct,the noise is noticeable more in Sony sets tha any other brand but is still consider normal,the description the manufacture gave you is their way to tell is not a problem.Is good it only happens when is turn on because is really no way to get rid of it.There is a way by disconecting the dimagnetizer but that will give you color problems and that is not good.

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

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

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

1 Answer

Sony trinitron kv-32fs10 component color problem

check the av in puts of your tv, this sounds that your av jack has a loose joint on the connection under.

May 24, 2010 | Sony KV-32FS10 32" TV

1 Answer

Sony KV-32S45 turns on at first, than blinks out, still sound

I would look for intermitent solder connections on the small horizonal driver transformer as well as other HV Componets.(HV Transformer etc.) Also solder up the Vetical output IC. These have been common causes of failures. I would not use the set until these have been checked and soldered. If you don't, a massive failure of the hoizonal circuit and powersupply will occur.
Hope this helps,
Skyassoc

Jun 18, 2009 | Sony KV-32S45 32" TV

1 Answer

Green screen and distorted picture sound is good but no picture

It must be connected with the color circuit of your tv, a board connected to back end of the tube. Could be dust, cob web or carbon deposit shorting a transistor. Popping noise if loud enough can be attributed to high voltage circuit fault and picture tube.

Have it service by a qualified person.

Apr 04, 2009 | Sony FD Trinitron WEGA KV-27FS120 27" TV

1 Answer

Sony KV-36FS120 No Pic/No Sound 4 blinks

You need to have the flyback on the main board replaced (a very comen problem)
This should fix ya!

Dec 12, 2008 | Sony FD Trinitron WEGA KV-36HS420 36" TV

1 Answer

Moved tv from 1 location to another

hi there, it may need some fine tune for the sony kv-27fs12 to be connected directly to cable jack wall. do some test. ty

Jan 10, 2008 | Sony FD Trinitron WEGA KV-27FS120 27" TV

1 Answer

Sound but no picture

Basic repair for skilled TV repairman = solder connections on
vertical output IC.........Can be done in home.....T.

Nov 28, 2007 | Sony KV-35S42 35" TV

1 Answer

Sony KV-32FV15 TY

I have had my Sony KV-32FV15 for about 2 years now and nothing has ever gone wrong(even going through several moves.) I recently moved again and when I plugged in the TV, you can hear the sound perfectly but the screen just stays black. You can not even hear the squeal that the TV makes when comming on. Is there anything that I should initially look at to troubleshoot. I cannot afford at this time the $250 fee to repair my TV. I look forward to your input and hopefully I can get this TV working again.

Oct 24, 2007 | Sony KV-32FV15 32" TV

1 Answer

Re: Sony KV-24FS120

your problem in system control ic section related to stand by pin check ckt related to stand by section in remote ic check power to system ic loose coniact in remote or system ic thanks

Sep 09, 2007 | Sony FD Trinitron WEGA KV-24FS120 24" TV

4 Answers

Sony KV-32S40 32" TV problem

intermittent problems can usuall be liked to bad solder connections. And sony typically has some that will develop after a few years in the power supply. so check for bad sodler connections throught the main board & give a close look to the power supply & check you work after to make sure you have no shorted pins. good luck.

Dec 27, 2006 | Sony KV-32S40 32" TV

1 Answer