Question about Toshiba 32AV502U 31.5 in. LCD HDTV

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Toshiba lcd tv 32" making noise by speaker

Toshiba lcd tv model# 32av502u. lcd tv working fine after replace power supply. couple dates after lcd tv have noise from speakers when i watch tv channel program. i try switch to another channel & all channel. samething have noise in it. what is problem? how to repair it?

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Test this steps and fix it. God bless you

Line noise is feeding in from the AC line. Use an AC liner filter to block the line noise. RF (radio frequency) interference is being picked up by the power line or wiring. Remove sources of RF interference, such as fluorescent lighting or wireless devices not designed to work with audio/video equipment. Wires between the components are on top of one of the components; the transformers are causing RF interference. Be sure that wiring goes behind the components rather than on top or between components. If there is an equalizer in use, there could be a ground loop. Ground loops can be resolved by installing GLI's (ground loop isolators) on the cables connecting to the equalizer.

Posted on Jul 25, 2013

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SOURCE: Toshiba LCD Colour TV (Model 15VL63B)

the invertor board faulty
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Posted on Jan 28, 2008

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SOURCE: no audio brand new toshiba 42xv540u

speakers are muted.

Posted on Jun 10, 2008

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SOURCE: Discrete IR code for Current model Toshiba 32" TV

these only work on the latest models HX81 etc...
pon- 0000 0069 0022 0002 0161 00b1 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0042 0016 0016 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0016 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0042 0016 0609 0161 0058 0016 00b1

pof-
0000 0069 0022 0002 0161 00b1 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0042 0016 0016 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0016 0016 0042 0016 0016 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0042 0016 0016 0016 0042 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0042 0016 0609 0161 0058 0016 00b1

Posted on Jun 29, 2009

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SOURCE: Connecting Compaq Presario CQ40 to LCD tv Toshiba REGZA '32'

Check your resolution output from laptop it maybe set to high for the TV to handle, also go to the Display Properties and ensure that the second monitor out is enable. Good luck!!

Posted on Aug 03, 2009

  • 308 Answers

SOURCE: I have a Toshiba 32av500u HD LCD TV.NO picture

Its a backlight problem. Common with this model. Under warranty? If not, then its a service shop repair.

Posted on Mar 26, 2010

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1 Answer

TV won't power up. This model has lost a power supply before. how do I verify this is the problem and replace the faulty component?


Hi Dave, Troubleshooting circuit boards to the component level has become a bit harder due to the availability of semiconductors.
I would suggest to measure all the voltages from the power supply at P802 and P803.
Let me know if you require further assistance or I can send you the service manual if need be.

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Look for loose contacts in jacks, sockets, cables. Look for loose contacts in power outlet.

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OK if you are getting a popping sound from your speakers then it's provably your signal board. IF you are getting a popping sound from one of your parts like the power supply then its provably that part that is bad. You can get parts at www.interliquidparts.com

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hope this helps,
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The power supply would have to be replaced to solve the issue.

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the tv has one part of the power supply working this is needed to have the microcontroller ready to work. But the tv needs more than that for work im talking 'bout the high voltage power supply who is now damaged. the parts required depends on the diagnosis in the bench but at least two are needed. the cost of this repair of course depends in how many parts are going to be replaced, but i concider this repair kind of average in this technology.

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Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

I repair these power supplies. Write to jah2mil@hotmail.com

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Power supply


Its possible that it is the power supply. If you wanted me to take a loot at it I could but you would need to remove the power supply from the TV and ship it to me. The power supply has been a common fail point of TV's, VCR's and other home electronics in the past several years. Let me know if this is something you would like to discuss further. I just need contact info.

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