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Laptop makes a hissing sound

My laptop makes a hissing sound. The sound is very faint, it sounds something like if you were to crumble a piece of aluminum foil from across the room or like the sound of a shortage or a spark in a wire that is a few feet away. When I hear the sound, I also notice that the battery light to my laptop flashes....

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Sanyo 25" 10yr old model


is the sound like hissing or like a spark something like?hissing can caused by leaking of high voltage that is dangerous and sould be fix right away

Jul 13, 2011 | Sanyo DS25390 TV

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Hissing sound from a Panasonic old TV...Sound and picture are OK. The hissing sound even continues when the MUTE on the Box is ON. The hissing only stops when the MUTE on the TV is ON. I am using the...


If you disconnect or power off the converter box does the hiss go away?
If you connect a VCR or DVD player does it still have the hiss? We
need to isolate what source is causing the hiss if it is from the set or
if it is from the converter box.
When you turn the volume control down on the set, does the hiss
reduce in level? If mute stops it, it should reduce in level as you
turn the volume down. Then turn up the sound level control on
the converter box whether its a manual control or by remote. If you
can get a combination that minimizes the hiss and gets higher sound
level from the programming that may cure it.
I am not familiar with the converter box you are using. Are you using
Audio/Video cables from it to the set or is it coming out with coaxial cable
and used on a channel? If you are using a very old set with a tuner input
perhaps the fine tuning is out of adjustment.

Feb 21, 2009 | Panasonic CT-20D11 20" TV

1 Answer

No Sound Issues


Hello!
Try the audio out. Run the audio to a receiver to see if the audio is there. If it is, then I'd leave it hooked up to the receiver and save yourself some money. If there is not any low level audio out then I'd fix the set. The only Sony set I've ever seen that was not worth fixing was a 32" model from the early 1990's that had bad picture tubes after only 5 years. I am a Sony factory trained tech. Good Luck!

barneyluc

Oct 13, 2008 | Sony KV-32FS13 TV

1 Answer

No sound - Great picture


Sounds like something in the sound output quit. If this is a very old set, it might be time to part ways with it.

Greg.

Aug 14, 2008 | Curtis CM19033S 19" TV

1 Answer

Buzzing sound


You haven't specified where the buzzing sound is coming from, if it is coming from speakers, changing capacitors in the audio section will fix the problem, especially the filters. Now if it sounds like a hissing sound from back of the tv, the CRT base socket is the culprit. It is an easy thing to fix, and the base is cheap, but make sure you purchase the exact same type of base or it will harm the CRT. Good luck.

Jan 22, 2008 | Samsung TXN2775HF 27" TV

1 Answer

Won't turn off...constant hissing...blank sreen


Sounds like a power surge likely followed the outage- or maybe you were actually hit by lightning- and since this set did not have a built-in kill-switch (circuit breaker) it could have very well caused some significant damage. Check the internal fuses, if they are blown, chances are, so is the rest of the set. For the cost of repairing something as over-reaching as this, I'd be looking for something new (And be sure to buy a quality surge protector, so this does not occur again!)

Hope this helps in some small way!

Aug 16, 2007 | Memorex MT2274 27" TV

1 Answer

Hissing Sound


A hissing sound that comes from the back of the set (not from the speaker) usually indicates a high voltage leak, most likely around the "suction cup" at the top of the picture tube or around the flyback transformer. Remove the back of the set and turn it on, and when you hear the hissing sound, shut off all the lights in the room and you should be able to see a purple-ish or white-ish glow from the spot that is hissing. Shut the set off, discharge the high voltage and clean and seal the problem area. Of course this should be done by someone experienced with stopping high voltage leaks.

Jun 22, 2007 | Durabrand DU1901 TV

1 Answer

Crackle noise and hissing - panasonic


solder all around the flyback area if this not resolve the problem replace the flyback

Nov 26, 2006 | Panasonic CT-32D12D 32" TV

1 Answer

Sony KV-20FS120


It's normal for new sets, especially Sonys to do that due to some sort of gas build-up in the new tube. My set still gets a high-pitched buzz after power on and lasts for a minute or two before silencing. If the hissing continues when the TV is turned off return it to the shop ASAP. It could be a problem with the power supply, something getting ready to blow up. Good luck

May 30, 2006 | Sony FD Trinitron WEGA KV-20FS120 20" TV

1 Answer

Sanyo TV DS32224


Is the hissing or static sound comming from the speakers or from the back of the set itself?? Need more info please.

Mar 23, 2006 | Sanyo DS27910 27" TV

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