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Windows 7: Strange Sound Problem

16 Sep 2013   #1

Windows 7 Home Premium 32bit
Strange Sound Problem

I have a problem with Sound in Toshiba L755 Laptop.

Any Video (from local hard disk playing on a media player OR online youtube video) works normally for a random periods (minute to several minutes) then the sound stops while the video continues to play.

No sound output from the speakers while when i plug the headphone i find the sound is working.

I tried different browsers and different media players.

i installed the latest version of flashplayer and the latest drivers from Satellite Support | Toshiba

I need a solution please.

My System SpecsSystem Spec

16 Sep 2013   #2

Windows 7 Home Premium 32bit

I have to close the browser or the media player for the sound to work again from the speaker. and the file play for minutes and then the sound stops again the same way.
My System SpecsSystem Spec
21 Sep 2013   #3

Desk1 8 Pro / Desk2 7 Home Prem / Laptop 8.1 Pro all 64bit

Hello and welcome engbasem mate I am having a problem finding the driver for the audio what is need is the PART NO under the machine see the pic

But for starters run these SFC /SCANNOW Command - System File Checker

Disk Check

some system specs would be good too System Info - See Your System Specs

Attached Thumbnails
Strange Sound Problem-part-no.png  
My System SpecsSystem Spec

21 Sep 2013   #4

Windows 7 Home Premium 32bit

The part number: PSK2YE-0LG02UAR

(1) NVIDIA High Definition Audio (2) NVIDIA High Definition Audio (3) NVIDIA High Definition Audio (4) Conexant SmartAudio HD (5) NVIDIA High Definition Audio
My System SpecsSystem Spec
21 Sep 2013   #5

Desk1 8 Pro / Desk2 7 Home Prem / Laptop 8.1 Pro all 64bit

Ok not having much luck with the Toshiba site (no great surprise) so engbasem run Speccy mate and send a snip of the Audio section opened out it may give a clearer picture of what is in the machine as there are refs to Conexant and NVidia and so many different versions of that model on the Toshiba site

Speccy - Download < from piriform

Screenshots and Files - Upload and Post in Seven Forums

Looking at the problem again and the fact that the audio fades away maybe indicative of a connection problem inside the machine but lets see what you have got in the Speccy readout first.
My System SpecsSystem Spec
23 Sep 2013   #6

Windows 7 Home Premium 32bit

Thank you for your reply
Kindly find the attached file for what u ask for

Attached Thumbnails
Strange Sound Problem-specification.jpg  
My System SpecsSystem Spec
23 Sep 2013   #7

Windows 7 Home Premium 32bit

audio part only

Attached Thumbnails
Strange Sound Problem-audio.jpg  
My System SpecsSystem Spec
23 Sep 2013   #8

Desk1 8 Pro / Desk2 7 Home Prem / Laptop 8.1 Pro all 64bit

Ok mate I will have another look through for the drivers for the machine but I am still thinking it is probably something to do with that speaker connection cable.

I may be little while but I shall be back.
My System SpecsSystem Spec
23 Sep 2013   #9

Windows 7 Home Premium 32bit

thank you
My System SpecsSystem Spec
23 Sep 2013   #10

Desk1 8 Pro / Desk2 7 Home Prem / Laptop 8.1 Pro all 64bit

engbasem now I don't know how old the machine is bit again I am assuming it has some age on it and as the drivers and the scans have been done and have had no effect one thing I would be looking for is a physical connection somewhere.
I am also wondering if you have done any security checks with on call scanners if not try these

download from bleeping computer

it is a long shot but doesn't take long and may come up with a fix. Any rubbish they come up with delete.

Secondly and if you are confident enough to do this then you could check out the speaker connection cable gently remove it and then replace to eliminate any bad contacts or what are known as dry joints (soldered joints where the solder has cracked for example therefore losing contact especially as the machine warms up) I am sending a site that shows the disassembly of the L755 and you can check this speaker connection without having to take the whole machine apart.
It is very important you read the introductory page to be sure of how to disconnect and reconnect the ribbon cables under the keyboard see pic.
Now go to the disassembly guides and scroll down to the L755 (see pic) and click on it. then follow steps 7 to 17. At step 17 you will find the speaker cable connection I speak of (see pics). Gently disconnect it and replug it back in and check the soldered joints around that motherboard socket.
When done reverse the order of disassembly being careful not to overly force anything home. The keypad is easy to remove by gently un clipping the thin strip along the top of it and remove it from the machine after you have removed those small screws holding it down.

A TIP Do this on a large white bath towel spread out on the work surface - any small screws dropped will be trapped on the towel and not bounce / skid of onto the floor and be lost forever.
If you are not sure about doing this then don't and post back.

PS Sorry forgot the site -

Attached Thumbnails
Strange Sound Problem-tosh-cables.png   Strange Sound Problem-tosh-l755.png   Strange Sound Problem-speaker.png   Strange Sound Problem-cable.png  
My System SpecsSystem Spec

 Strange Sound Problem

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