tx2z-1015ea buzzing noise

[XanderMac]

heh, good complaint notung. I must agree with you, this is most definately the last HP purchase I make. Ironically HP also lost out with their ignorance to a reasonable solution as a few of my friends saw the laptop and were interested in purchasing one, that is until they heard the sound that these blighters kick out. Also I've been trying to install Linux on the dern thing and as of yet most of the distros will not easily install, infact all of the distros require major bodging just to get the bcm4322 card working. It is definately the most buggy and useless laptop I have ever come across. Ah well it's HP's future loss and not mine.

[Midnightcharger]

Got the same exact high pitched sound coming from the top left hand quadrant near the charge port as described.  I know as fact that it deals with the backlight inverter.  From what I read is that there is a capacitor on the inverter making the sound.  Capacitors have a chance to vibrate due to current being passed through them which causes the sound.  More current I.E. brighter display will make the sound more audible.  Definitely a design flaw.

I just returned my first after one week for this and another issue.  The second issue was fixed and they replaced the mainboard, but my initial problem of the buzzing sound still is present. 

Dont really want to send it back out for another 3 weeks as I only had the thing for a total of 1 weeks useage.

[Midnightcharger]

Ok, got around to working on this computer,  The issue is DEFINITELY the capacitor.  The location on the Cap is PC109 and has markings 88 / 220 / 25a and sits right behind the 2 USB ports and the lan port.  The cap does not look damaged (i.e. no leaking or bulging top) which leads me to believe that it is of low quality.

The buzzing sound is loud, but from what I gather is its being amplified by the void space in the bottom case.  I will source out a higher quality cap to replace the one currently in it to see if that eliminates this problem. 

I DO NOT RECOMMEND THIS possible FIX TO ANYONE BUT MYSELF.  Just information on what part is causing the issue.  I am experienced with working with electronics and am highly skilled in soldering repairs. 

[tkaragyozov]

I really hope and think that you 'll find the soluion and hopeully HP guys read sometimes these forums, so they can fix it and stop us from returning our HP laptops like they are cheap chinese replica, although I have always used HP, they really drive me crazy! As much as I have read about this problem, I think that everyone with decent hearing capabilities have the same exact poblem! I still love my Tx2 but don"t know for how long

[Jackdrits]

Midnightcharger, i hope you can solve this...

I'm from Brazil and to me there is no way to send this laptop back to the United States to get it fixed or replaced..

So instaled, ill have to try fixing it here myself (find someone experienced in soldering repairs), or maybe get Brazil's HP support to MAYBE solve this..

In fact, i would prefer, for example, if you find a solution, you could write a guide with pics and videos so we could follow it and get it fixed.. even if we dont do it ourselves, we could at least have the guide and find someone to do the "precision soldering job"..

This noise is really irritating and i really wanna fix this damned thing.. -.-

[Midnightcharger]

I will see what I can do,  I would highly recommend that

1. DO not open your machine or have anyone else besides a certified HP technician open your machine if it is still under warranty.  Once open it is void and any damage will cost you probably more than what the machine is worth.

2. As a temp fix keep your brightness down and/or dont work in an extremely quiet place.  (as what I was doing).

From my understanding, HP techs are no more than swap mechanics.  If they find a defective part, they swap it for a replacement part.  I clearly marked my the areas of concern both on their written form and also with post it notes in the locations I was experiencing problems with.  I had both parts swapped only.

I will need to investigate a bit more on my motherboard as I believe that there may be a few components causing this issue.  I spent the day yesterday trying to isolate the location of the sound.  I tried to use methods to isolate the sound by coverring the parts to deaden the sound with no avail.  Also spent a few hours trying to find information on the capacitor in question.  Since many makers mark their caps differently, I want to make absolutely sure that I know the correct value of the capcitor before replacement.  My task today is to get a mechanics (similar to a doctors) stethoscope to listen to the componets better and determine if only the cap is producing the resonating sound or if its in conjunction with other componets and also find out the correct value of the capacitor in question.. 

Will keep an updated post on my findings and actions.  If I do any videos it will be in Youtube under the same screen name. 

[Jackdrits]

Alright my friend,

Thank you so much for your effort!

I'll be waiting for your instructions.

[Lowkee]

They should be fixing this problem, as this is my FOURTH tx2z (the other three were also defective in some way) and two of the four did not buzz at all. So this is abviously not an issue with ALL of them, which means it is certainly not 'normal operating noise'.

So far, I have had 2 bad digitizers, 2 bad fingerprint readers, 1 bad HDD and two bad LCD inverters. This is unreal. If i could get my money back I certainly would, as I'd rather have a non-touchscreen notebook than this hunk of junk.

Heck, in two days Windows 7 will be officially released and there aren't even reasonably functional touch drivers for it yet, the fingerprint reader only works 1/4 of the time (it doesn't even detect swipes the other 3/4), the touchscreen thinks I am touching it in the lower left corner over and over again, forcing me to disable touch ability (wtf did I buy a touch screen if I must disable it to work in piece?!), and every time a component dies in this pile of crap HP's fix is to wipe it and reload from factory, then ship it to them where they keep it for a month and send me back a notebook with yet another problem. Whereby I have lost all of my dat because the drive is wiped, so i have to fully reload everything, just to find out something new is broken.. all to repeat the same process all over again.

It would have been less frustrating to delete my data and move in with a roommate from India who doens't understand a word I say and has an IQ of 4.

[TheFamousFive4]

Hallo friends, I HMT also have the exact same problem with my HP Pavillion DV6 2113TX, it is making the unbearable high pitched squeaking sound from the left hand side. I have sent it to be repaired twice but it came back with the same sound but a tad worse. There is also a clicking sound coming from my hard drive which is really concerning. I contacted HP for the third time and will be sending it of to be repaired again. Hopefully they will do something this time, I love my HP notebook but it is giving trouble after trouble.

I have lost my faith in HP notebooks but the customer support over the phone is excellent, I would love to thank all the support staff as they helped me, made me feel comfortable and have been very friendly.

HMT

[TheFamousFive4]

Hallo friends, I HMT also have the exact same problem with my HP Pavillion DV6 2113TX, it is making the unbearable high pitched squeaking sound from the left hand side. I have sent it to be repaired twice but it came back with the same sound but a tad worse. There is also a clicking sound coming from my hard drive which is really concerning. I contacted HP for the third time and will be sending it of to be repaired again. Hopefully they will do something this time, I love my HP notebook but it is giving trouble after trouble. I was told by HP that if it still has the problem after 3 repairs WHERE they have REPLACED something only is when I will be able to a return. The perculiar part is that none of the service staff is able to hear the high pitched squeaking sound. I wonder if age affects what can be heard such as high pitched sounds. I have lost my faith in HP notebooks but the customer support over the phone is excellent, I would love to thank all the support staff as they helped me, made me feel comfortable and have been very friendly. HMT