Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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Akai 54' projection tv picture no sound

Turn tv on get picture no sound then within a few minutes get humming sound. becomes intermitant then slowly after 30 minutes warbling sound from tv chanel finally turns into sound

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  • Anonymous Mar 30, 2009

    my tv does the same thing picture but tv gargles i used to get the sound after awhile but now just continous gargling can someone gelp

  • kfpeterman May 23, 2009

    our tv does the same thing. it gets worse each time that it is turned off and then back on. until eventually the humming/crackling noise doesn't stop. each time it takes longer and longer. we unplug it for a few weeks and then its back to the start and eventually gets worse.. what needs replaced or changed?

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U obviously don't have all ur sund cables connected right or if ur running it through ur sound system put it on phono

Posted on Mar 05, 2009

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Posted on Jan 02, 2017

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Tv have a humming sound, sounds like a soft power saw running.


Possible that the noise can be associated with a faulty frequency in the switch mode power supply. So if you see a blurred or warbled picture then check the main capacitor in the power supply as it can be faulty and so produce the A/C ripples in he power so that the SMPS works with a difference.

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Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} You can try a hard reset: Unplug TV from AC mains and remove all cables from TV. Wait about 30 minutes and replug to AC power and redo the cabling. Switch on the TV and see if it works..



Good luck...

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1 Answer

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Ur tv now power on only have picture few mins,than dead,have sound only?Yes,than the 1 or 2 the long board call the LCD inverter boards are dead.The LCD inverter long boards help the LCD screen to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy 1 or 2 long LCD inverter boards for the replacement.

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1 Answer

Our VX42L display goes black after an hour use but has sound


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Before picture/sound is shown on the tv, the source and tv talk to each other over HDMI to make sure there's no piracy going on (don't you just love DRM?). If the source gets a strange response or doesn't get a response fast enough, it may assume that something illegal is going on and cut the connection to the tv.

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1 Answer

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


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Hope this helps,
Skyassoc

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Humming problem with a Samsung DLP HL-P5063W
picture displays good
Humming randomly starts, but once it starts it hums

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1 Answer

AKAI 54" Big screen, Turn TV on picture no sound, then within a few minutes humming sound gets louder then stops and starts


Sounds like the audio amplifier circuit is bad. I do not know if where that is in that TV. If you were to hook a boom box or stereo receiver to the TV (via the audio out jacks on the TV), you could monitor the sound that way. If you get clean sound, then the problem is in the amplification circuitry. If you still get humming, etc., then the problem is further upstream.

Also, clarifying... the picture has not changed one iota, correct?

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1 Answer

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1 Answer

HV Sound no Picture


Sounds as though there is an intermitant, heat-related problem with the HV transformer. You can order this at a tv parts shop or from Sony (probably more expensive) the part number should be on the part or on a schematic. If not, the parts dealer can look it up from the model number.

Good luck! :)

Dec 27, 2007 | Sony KV-36XBR400 36" TV

1 Answer

Power light flashing/ no picture


I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.

Jul 11, 2007 | Toshiba 56H80 56" Rear Projection...

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