Question about Philips 36PT71B 36" TV

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Sound going off, audio muting on and off by itself-please help!

The sound is going off...intermittent audio..the picture is fine..please help!

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  • kathygriff Dec 28, 2007

    thank you vinyl...but...what does solder mean? ...how do I find the audio section?...what does the IC and transistor look like?...do I take apart the tv myself to try?...I have downloaded the manual 36PT71B ...I am looking on the back but don't see where to do this....please help...I will check back online soon or here is my number....912.228.5867

  • kathygriff Dec 28, 2007

    also...I tried to unscrew the one cable that goes into the back of tv from the satellite & the sound came on & off again....almost like a loose wire or something...but it seems tight to me..

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Try to solder all componet in the audio section, especially the IC and transistor.

Posted on Dec 28, 2007

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Fix a Vizio E420VL LCD tv that has no sound?


Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

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Why no sound?


Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/

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Hi, my Logik LE22A13BTCDG864 with built in dvd player has no Volume but the picture is fine can you help plrasse


Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
http://electro-medical.blogspot.com/

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1 Answer

Television worked fine when I turned it off. The next day when I turned it on there still was a beautiful picture but there was no sound. Everything I read says no picture or sound. Please help.


Hi qlane1,


First make sure that the sound is not in "mute" mode.


Plug your headset to the earphone jack (if installed) of the TV.

If you can hear the sound there, the fault may due to open(defective) internal speakers or the earphone jack itself. Faulty internal speaker may replaced with new sets to back your sound to normal again. If the earphone jack was faulty, you may spray it first with electrical contact cleaner while inserting and pulling the headset plug into it for one minute to clean the contact. If nothing happens, this jack need to replaced with new one.


If you can't hear the sound after inserting your headset, this is an indication that the audio circuitry was gone bad. The most common caused of this trouble was the faulty sound IC(mounted in heatsink). This is the one converts the audio signal to sound and feed to your speaker's. I would advice you to look for a qualified technician to check this parts.


Hope I helped you.


Have a nice day!


Thanks for using Fixya.

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I CANT GET ANY AUDIO SOUND ? HOW CAN I INSTALL SOUND DRIVE?I CAN SEE PICTURES IN MY LAPTOP BUT CANNOT HEAR ANY VOICE. MODEL NO. OF MY LAPTOP IS PSLB0E-02D01HAR SATELITE L300-129 SYSTEM UNIT, TOSHIBA


check that the volume control is not muted by going to control panel -- audio -- volume control and untick the mute button.

Otherwise try to reload the sound driver in control panel -- audio -- advanced - update driver

Hope this helps. It is hard to give exact intructions as you have not provided the details of your windows version.

Please rate the solution to help fixya serve you better in future.

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please check if no audio is there. 1 speaker & its wire for loose. 2 check supply to audio section 3 & also check for loose contact in audio section. 4 signal coming to ic from sif section. 5 audio ic. good luck.

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