Panasonic ZT60 and VT60 Fan/Fridge Noise Production Numbers - Page 34 - AVS Forum
Forum Jump: 
Reply
 
Thread Tools
post #991 of 1505 Old 01-15-2014, 08:55 AM
Senior Member
 
CamaroDrvr's Avatar
 
Join Date: Sep 2013
Posts: 286
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 43
Seriously, nearly a 1,000 messages into this and you declare there is no issue, and don't worry.

You are right, many of them are fine and even on some that might not be the buyer can't hear it or it does not bother them. Panasonic does not create and offical fix and pay local repair shops what has to be a good slice of the profit margin over a non-issue.
vinnie97 likes this.
CamaroDrvr is offline  
Sponsored Links
Advertisement
 
post #992 of 1505 Old 01-15-2014, 09:06 AM
Newbie
 
reddevil80's Avatar
 
Join Date: Jan 2014
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
What Is new on the p65zt60vo from the p65zt60
reddevil80 is offline  
post #993 of 1505 Old 01-15-2014, 09:13 AM
Newbie
 
reddevil80's Avatar
 
Join Date: Jan 2014
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by CHASLS2 View Post

Same for my new 60vt60. No buzz and only hear a little fan hum on mute.
reddevil80 is offline  
post #994 of 1505 Old 01-15-2014, 09:15 AM
Newbie
 
reddevil80's Avatar
 
Join Date: Jan 2014
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Lost! View Post

- UNITS WITHOUT SYMPTOMS

ZT60:

A00022 : April 2013 : Praktik : first unit : no issue
A00066 : April 2013 : Dogger1 : first unit : no issue
A00545 : April 2013 : Sammie2980 : first unit : no issue
A00918 : May 2013 : mattestarr : first unit : no issue
A01510 : May 2013 : repete66211: first unit : no issue
A02171 : May 2013 : Dr Harford : first unit : no fan noise, but banding on right
A02299 : May 2013 : Yaomizzle : first unit : no issue
n/a : May 2013 : sirh : first unit : no issue 60"

VT60:
n/a : n/a : mAdCapper : first unit : fan audible only on mute and 3' range
reddevil80 is offline  
post #995 of 1505 Old 01-15-2014, 09:17 AM
Newbie
 
reddevil80's Avatar
 
Join Date: Jan 2014
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Did the new p65zt60vo fix fan and if so what Is new on this tv
reddevil80 is offline  
post #996 of 1505 Old 01-15-2014, 09:44 AM
Member
 
copene's Avatar
 
Join Date: Dec 2012
Posts: 117
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Liked: 61
The VO stands for Viscous Oscillating. It's for people who wanted extra fan noise. I just ordered one, let's hope I get a quiet one!

*fingers crossed
copene is offline  
post #997 of 1505 Old 01-15-2014, 09:53 AM
 
vinnie97's Avatar
 
Join Date: Jul 2006
Location: Nunya
Posts: 11,657
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Liked: 1010
Quote:
Originally Posted by derekarita View Post

For those in a panic about the possible fan noise, fear not.  The majority of owners don't have the issue or can't hear it.  I have the 60"zt60 and have only noticed fan noise if I put my head behind the set, where the fans are.  Otherwise...no fan noise.  The ZT and VT are quality panels.  Panasonic is not going to offer a TV that sounds like a refrigerator, so fear not.
Except they did, and now there's apparently a delamination issue occurring with the ZT60 on some builds in any case. A cash-strapped division has been caught taking shortcuts, and the customers suffer. This is not the place to make excuses.
vinnie97 is offline  
post #998 of 1505 Old 01-15-2014, 09:59 AM
Member
 
PDSway's Avatar
 
Join Date: Jan 2003
Posts: 95
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
Quote:
Originally Posted by vinnie97 View Post

Except they did, and now there's apparently a delamination issue occurring with the ZT60 on some builds in any case. A cash-strapped decision has been caught taking shortcuts, and the customers suffer. This is not the place to make excuses.

See the ZT60 Owners Thread for more info.

And the previous post HERE.
PDSway is offline  
post #999 of 1505 Old 01-15-2014, 11:40 AM
AVS Special Member
 
RichB's Avatar
 
Join Date: Nov 1999
Location: Massachusetts
Posts: 8,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 248 Post(s)
Liked: 243
Quote:
Originally Posted by derekarita View Post

For those in a panic about the possible fan noise, fear not.  The majority of owners don't have the issue or can't hear it.  I have the 60"zt60 and have only noticed fan noise if I put my head behind the set, where the fans are.  Otherwise...no fan noise.  The ZT and VT are quality panels.  Panasonic is not going to offer a TV that sounds like a refrigerator, so fear not.

Fair assessment. I would not let this stop you from buying one of these displays.
I can hear my SubZero over the ZT and it is father away tongue.gif

- Rich

Oppo Beta Group

Oppo BDP-105D | Oppo HA-1 | Oppo PM-1 | Parasound A51 | Revel Salon, Voice, Studio | Velodyne HGS-15
RichB is online now  
post #1000 of 1505 Old 01-15-2014, 03:45 PM
AVS Special Member
 
kluken's Avatar
 
Join Date: Jun 2003
Posts: 1,040
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 103
The fan issue pisses me off more than my delamination issue, because the fan issue shoul have been real easy to identify and fix in development. The new gap-less panel is a new process and technique thus the delamination may or may not have been known as a potential issue. The disappointment is that exiting th business means no replacement ZT set will be available for long, none in my area at all and I would rather gamble on a VT which the panel should be less risky and I can deal with the fan issue. As long as the panel is reliable any other issues are electronics that can be replaced for various prices, but once the panel goes the set is basically not cost effective to repair.
kluken is offline  
post #1001 of 1505 Old 01-15-2014, 04:04 PM
 
vinnie97's Avatar
 
Join Date: Jul 2006
Location: Nunya
Posts: 11,657
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Liked: 1010
An alternative would be to keep an eye out for open boxes if you're brave.
vinnie97 is offline  
post #1002 of 1505 Old 01-15-2014, 04:21 PM
Senior Member
 
CamaroDrvr's Avatar
 
Join Date: Sep 2013
Posts: 286
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 43
Quote:
Originally Posted by copene View Post

The VO stands for Viscous Oscillating. It's for people who wanted extra fan noise. I just ordered one, let's hope I get a quiet one!

*fingers crossed

Ok, that was funny
CamaroDrvr is offline  
post #1003 of 1505 Old 01-15-2014, 04:28 PM
AVS Special Member
 
kluken's Avatar
 
Join Date: Jun 2003
Posts: 1,040
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 103
I will be fine with the VT60 and I get to pocket a few hundred bucks?
kluken is offline  
post #1004 of 1505 Old 01-15-2014, 05:30 PM
AVS Special Member
 
eric3316's Avatar
 
Join Date: Feb 2013
Posts: 2,813
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 235 Post(s)
Liked: 657
Those who have the fan issue, if any of you have an original PS3, how does it compare?

My VT60 is an August build and it is pretty quiet but when my PS3 goes on the fan in that thing is a beast. Was curious how bad the fans were compared to an original PS3.
eric3316 is online now  
post #1005 of 1505 Old 01-15-2014, 05:35 PM
Senior Member
 
maynerd's Avatar
 
Join Date: Mar 2001
Location: Bellevue, WA, USA
Posts: 433
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Quote:
Originally Posted by eric3316 View Post

Those who have the fan issue, if any of you have an original PS3, how does it compare?

My VT60 is an August build and it is pretty quiet but when my PS3 goes on the fan in that thing is a beast. Was curious how bad the fans were compared to an original PS3.

I could be wrong but I thought they fixed the issue at the factory before August builds.
maynerd is offline  
post #1006 of 1505 Old 01-15-2014, 05:40 PM
AVS Special Member
 
eric3316's Avatar
 
Join Date: Feb 2013
Posts: 2,813
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 235 Post(s)
Liked: 657
Quote:
Originally Posted by maynerd View Post

I could be wrong but I thought they fixed the issue at the factory before August builds.
Yeah, mine has the fix. I was saying the fan in my PS3 is ridiculous and that is what I use as my blu ray player and every time I use it the fan can usually be heard over most volumes of the TV. So I was just curious from those who have panels with the loud fan how it compares to the original PS3 because if the TV fan is as loud as the PS3 is I would have gone nuts.
eric3316 is online now  
post #1007 of 1505 Old 01-15-2014, 06:15 PM
AVS Special Member
 
KMFDMvsEnya's Avatar
 
Join Date: Jun 2007
Location: SLC, UT
Posts: 1,199
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 45
The original PS3 is definitely louder but once that is taken out of the equation at least for me the fan noise was plenty pronounced.

Best Regards
KvE

Politics is like a corral, no matter where you are you'll always be shovelling it.

KMFDMvsEnya is offline  
post #1008 of 1505 Old 01-15-2014, 08:11 PM
Senior Member
 
chillspace's Avatar
 
Join Date: Aug 2007
Location: Calgary, AB
Posts: 419
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 14
Quote:
Originally Posted by KMFDMvsEnya View Post

The original PS3 is definitely louder but once that is taken out of the equation at least for me the fan noise was plenty pronounced.

Best Regards
KvE

I don't have a PS3 but for the longest time I had my NAS in the home theatre and the fans were noticeable. Once I moved it, then I definitely heard the fans on the ZT60. Mine is a December build and the fans to spin up a bit faster the longer the TV is on. Perhaps a larger diameter fan would have been better in these units...they don't have to spin as fast but move the equivalent amount of air...

Eric

My Stuff: Panasonic TC-P65ZT60 w/  Ideal-Lume Bias Lighting, Yamaha RX-V3800, Oppo BDP-103D

chillspace is online now  
post #1009 of 1505 Old 01-15-2014, 09:38 PM
Member
 
dalepm's Avatar
 
Join Date: Mar 2004
Location: San Jose, CA
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 11
A0049 April 2013, just delivered Saturday December 11th. Fan noise is bothersome, I can see foam around the fans but not sure if that if that is the fix. I will call Panasonic to see if it can be fixed.
dalepm is offline  
post #1010 of 1505 Old 01-16-2014, 12:10 AM
Advanced Member
 
fmalczewski's Avatar
 
Join Date: Feb 2004
Posts: 958
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Liked: 20
Quote:
Originally Posted by vinnie97 View Post

Except they did, and now there's apparently a delamination issue occurring with the ZT60 on some builds in any case. A cash-strapped division has been caught taking shortcuts, and the customers suffer. This is not the place to make excuses.

When I read this stuff, I get SXRD optical block deja vu all over again... Guess I should go take a close look at my screen.

Anyway mine seems to be more noisy as of late, although it's probably not, more likely just my sinuses. Fixes going in soon (which for me is any week now).
fmalczewski is offline  
post #1011 of 1505 Old 01-16-2014, 04:44 AM
AVS Special Member
 
eric3316's Avatar
 
Join Date: Feb 2013
Posts: 2,813
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 235 Post(s)
Liked: 657
Quote:
Originally Posted by dalepm View Post

A0049 April 2013, just delivered Saturday December 11th. Fan noise is bothersome, I can see foam around the fans but not sure if that if that is the fix. I will call Panasonic to see if it can be fixed.
From what I gathered here and seen on my TV, foam on the outside of the fan will be on all of the TV's but if you use a flashlight and shine it into the fan, if you have the fix installed you will be able to see a strip of foam underneath the fan and that is the actual fix.

If you look closely at my pics you can see the there are foam strips underneath the fan.
http://www.avsforum.com/t/1478361/panasonic-zt60-and-vt60-fan-fridge-noise-production-numbers/840#post_24139686
eric3316 is online now  
post #1012 of 1505 Old 01-16-2014, 12:18 PM
Member
 
dalepm's Avatar
 
Join Date: Mar 2004
Location: San Jose, CA
Posts: 66
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 11
Again I just got my TC-P65ZT60 on Jan 11, 2014. "A00490" (this is a corrected number) made in April 2013.

I can hear the fans whenever there is a quiet part of a show....and now that I know it is there it is really bothering me.

I just got off the phone with Panasonic. They just told me the fan noise is normal. They said it is only an issue if I can hear the fans above the audio from a program. They also said the foam fix is not from Panasonic and it is not recommended and can damage the TV. I mentioned that my previous TCP65V10 never made a noise. They told there is newer technology in this TV which requires more ventilation..Is this a bunch of crap or what? My TPC65V10 was rated at 750Watts the ZT60 is only 630Watts.

From what I read on this forum everything he said is a bunch of "bull?&$#". I am actually surprised of the response from Panasonic based on what I have read here.

They entered a case number and told me that they will only do something if the noise can be heard above the audio from a program.

What do I now?
dalepm is offline  
post #1013 of 1505 Old 01-16-2014, 12:21 PM
 
vinnie97's Avatar
 
Join Date: Jul 2006
Location: Nunya
Posts: 11,657
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Liked: 1010
It's not all BS actually. Improper application of the back panel after the foam fix by a 3rd party can damage the panel unfortunately (see the microfactures/delamination complaints in other threads).

Hopefully, the technician is competent enough to follow the instructions of the bulletins they provide. You should call again and mention that when watching it at lower levels in the evening, you *can* hear it over the dialogue, and it's very distracting.
vinnie97 is offline  
post #1014 of 1505 Old 01-16-2014, 02:08 PM
Senior Member
 
CamaroDrvr's Avatar
 
Join Date: Sep 2013
Posts: 286
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 43
If we are counting still, here are 130 or so who reported an issue, most have the fix now with varying degrees of satisfaction and only a couple with a build date after august show up.

x00000 : Apr 2013 : 06TL : first unit : Fan Noise
x00000 : May 2013 : 06TL : second unit : Fan Noise
x00000 : Apr 2013 : Ace_BB6 : first unit : Fan Noise
x00000 : Jul 2013 : AlanBuck : first unit : Fan Noise
x00000 : xxx 2013 : alettiere : first unit : Fan Noise
60ZT65 : xxx 2013 : AlphaZulu : first unit : Fan Noise
x00000 : Jul 2013 : Ams2064 : first unit : Fan Noise
x00000 : xxx 2013 : AVKIK : first unit : Fan Noise
A00217 : Apr 2013 : Bigmoviefan : first unit : Fan Noise
x00000 : xxx 2013 : bkedelen : first unit : Fan Noise
A02488 : May 2013 : bradhs : second unit : Fan Noise
A03042 : May 2013 : CamaroDrvr : first unit : Fan Noise
x00000 : Jul 2013 : cartman1417 : first unit : Fan Noise
x00000 : xxx 2013 : chewbacca121 : first unit : Fan Noise
x00000 : Aug 2013 : colonel7 : first unit : Fan Noise
x00000 : xxx 2013 : Con219 : first unit : Fan Noise
x00000 : xxx 2013 : coryfriedman : first unit : Fan Noise
x00000 : Apr 2013 : cosmos5861 : first unit : Fan Noise
x00000 : xxx 2013 : cs225b : first unit : Fan Noise
x00000 : Jul 2013 : cwick : first unit : Fan Noise
55VT60 : xxx 2013 : CyphjerMK : first unit : Fan Noise
x00000 : xxx 2013 : daferret : first unit : Fan Noise
A00049 : Apr 2013 : dalepm : first unit : Fan Noise
A01283 : May 2013 : Dasanii19 : first unit : Fan Noise
A056xx : Jun 2013 : davoe : first unit : Fan Noise
x00000 : xxx 2013 : dbiker : : Fan Noise
x00000 : xxx 2013 : DeeJaa : first unit : Fan Noise
x00000 : May 2013 : defjamz : first unit : Fan Noise
x00000 : Jul 2013 : delkat : first unit : Fan Noise :
VT65EU : xxx 2013 : dingo99 : first unit : Fan Noise
x00000 : xxx 2013 : djsketchie : first unit : Fan Noise
x00000 : Jul 2013 : drivie : first unit : Fan Noise
x00000 : Jun 2013 : Edllguy : first unit : Fan Noise
x00000 : May 2013 : EdwinB : first unit : Fan Noise
A02732 : May 2013 : elambo : first unit : Fan Noise
x00000 : xxx 2013 : elbobo19 : first unit : Fan Nois :
x00000 : xxx 2013 : elitemikes : first unit : Fan Noise
x00000 : Aug 2013 : eric3316 : first unit : Fan Noise
x00000 : Jun 2013 : eysikal : first unit : Fan Noise
x00000 : Jun 2013 : Falcon64v : first unit : Fan Noise :
x00000 : Apr 2013 : FilmMixer : first unit : Fan Noise :
x00000 : xxx 2013 : fmalczewski : first unit : Fan Noise :
x00000 : Apr 2013 : fullvnrg : first unit : Fan Noise
x00000 : Jul 2013 : Gary218 : first unit : Fan Noise
x00000 : xxx 2013 : geert_d : first unit : Fan Noise
x00000 : xxx 2013 : Glashub : first unit : Fan Noise
x00000 : xxx 2013 : Goaz : first unit : Fan Noise
x00000 : Jul 2013 : Goosedizzel : first unit : Fan Noise
A01387 : May 2013 : Goosedizzel : first unit : Fan Noise
A04953 : xxx 2013 : guinnrss4lunch : first unit : Fan Noise
x00000 : xxx 2013 : guvadc : first unit : Fan Noise
A05692 : Jun 2013 : haevolution : first unit : Fan Noise
x00000 : Sep 2013 : HDClown : first unit : Fan Noise
A05692 : Jun 2013 : hdqboss : first unit : Fan Noise
x00000 : xxx 2013 : hfc23 : first unit : Fan Noise
x00000 : xxx 2013 : Hoots : first unit : Fan Noise
A02608 : May 2013 : iChristopher : second unit : Fan Noise
x00000 : xxx 2013 : Influence : first unit : Fan Noise
x00000 : Aug 2013 : Jabber5 : first unit : Fan Noise
x00000 : xxx 2013 : Jeff_DML : first unit : Fan Noise
x00000 : xxx 2013 : Jeskid : first unit : Fan Noise
x00000 : Jun 2013 : JKR1963 : first unit : Fan Noise
x00000 : xxx 2013 : jnzz001 : first unit : Fan Noise
x00000 : xxx 2013 : jnzz001 : second unit : Fan Noise
x00000 : xxx 2013 : johnBoston123 : first unit : Fan Noise
x00000 : May 2013 : JRonnie7 : first unit : Fan Noise
x00000 : Jul 2013 : kluken : first unit : Fan Noise
x00000 : xxx 2013 : KMFDMvsEnya : first unit : Fan Noise
x00000 : Jun 2013 : kmramos : first unit : Fan Noise
A06816 : Jun 2013 : konoyaro : first unit : Fan Noise
x00000 : Aug 2013 : krismate : first unit : Fan Noise
x00000 : Jun 2013 : la2051 : first unit : Fan Noise
x00000 : Apr 2013 : LarryInRI : first unit : Fan Noise
x00000 : xxx 2013 : LIKAUDIO : first unit : Fan Noise
A00653 : Apr 2013 : Lost! : first unit : Fan Noise
A05340 : Jun 2013 : Lost! : 4th unit : Fan Noise
A05352 : Jun 2013 : Lost! : 3rd unit : Fan Noise
A05354 : Jun 2013 : Lost! : second unit : Fan Noise
x00000 : xxx 2013 : mailalan : first unit : Fan Noise
A00269 : Apr 2013 : marcj9680 : first unit : Fan Noise
x00000 : xxx 2013 : merccrqazy : first unit : Fan Noise
x00000 : May 2013 : mjodotcom : first unit : Fan Noise
x00000 : Jun 2013 : mluder : first unit : Fan Noise
x00000 : xxx 2013 : msgoalie : first unit : Fan Noise
x00000 : xxx 2013 : MultiKillGaming : first unit : Fan Noise
x00000 : xxx 2013 : MultiKillGaming : second unit : Fan Noise
x00000 : xxx 2013 : myared : first unit : Fan Noise
x00000 : Jul 2013 : NateTTU : first unit : Fan Noise
x00000 : Jul 2013 : Newenglander : first unit : Fan Noise
x00000 : xxx 2013 : Newownernh : first unit : Fan Noise
x00000 : Apr 2013 : Newztpa : first unit : Fan Noise
x00000 : Jun 2013 : p3Orion : first unit : Fan Noise
x00000 : xxx 2013 : Paul Robins : first unit : Fan Noise
x00000 : xxx 2013 : repete66211 : first unit : Fan Noise
x00000 : xxx 2013 : RFK54 : first unit : Fan Noise
x00000 : xxx 2013 : RichB : first unit : Fan Noise
x00000 : Jun 2013 : Rcannon : first unit : Fan Noise
x00000 : Jun 2013 : roncruiser : first unit : Fan Noise
x00000 : xxx 2013 : rubez : first unit : Fan Noise
x00000 : xxx 2013 : SaNDuTjE : first unit : Fan Noise
x00000 : xxx 2013 : seattlemike : first unit : Fan Noise
A00449 : Apr 2013 : Sensui : first unit : Fan Noise
x00000 : xxx 2013 : Shmevan : first unit : Fan Noise
x00000 : xxx 2013 : Silly Rabic : first unit : Fan Noise
55VT60 : Jul 2013 : Simbah2014 : first unit : Fan Noise
x00000 : xxx 2013 : Skitso787 : first unit : Fan Noise
A01925 : May 2013 : Skoor : first unit : Fan Noise
x00000 : May 2013 : smurraybhm : first unit : Fan Noise
x00000 : xxx 2013 : STIG : first unit : Fan Noise
x00000 : xxx 2013 : sulay : first unit : Fan Noise
E01614 : May 2013 : supernsa : first unit : Fan Noise
E00775 : xxx 2013 : Sverddrager : first unit : Fan Noise
x00000 : Aug 2013 : Synch : first unit : Premium Whir
x00000 : xxx 2013 : Tallis77 : first unit : Fan Noise
x00000 : xxx 2013 : tbass2k : first unit : Fan Noise
x00000 : xxx 2013 : togatx : first unit : Fan Noise
x00000 : Jun 2013 : trance : first unit : Fan Noise
A007xx : Jul 2013 : tuckersvols : second unit : Fan Noise
x00000 : May 2013 : TWD : first unit : Fan Noise
A02387 : May 2013 : TWD : second unit : Fan Noise
x00000 : xxx 2013 : twinturboaudi : first unit : Fan Noise
55VT60 : Oct 2013 : unknownkingdom : first unit : Fan Noise
55VT60 : Jun 2013 : vahighland : first unit : Fan Noise
x00000 : Oct 2013 : Vermithrax : first unit : Fan Noise
A01132 : May 2013 : vinnie97 : first unit : Fan Noise
x00000 : xxx 2013 : Vybz67 : first unit : Fan Noise
x00000 : May 2013 : waqasjamal : first unit : Fan Noise
x00000 : xxx 2013 : wfdTamar : first unit : Fan Noise
x00000 : xxx 2013 : yourekaiche : first unit : Fan Noise
CamaroDrvr is offline  
post #1015 of 1505 Old 01-16-2014, 02:17 PM
AVS Special Member
 
smurraybhm's Avatar
 
Join Date: Jul 2007
Location: Down South
Posts: 1,734
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 230 Post(s)
Liked: 448
I have yet to get the fix with an April build date and the more I watch it the less I notice it. I doubt I will have the "fix" done. Plus, since I have lived with it for 9 months there are times I turn the volume to zero and think they are actually getting quieter. Anyway, GREAT picture from my VT60 and I have no regrets. Much better than having a buzzer or the red tint.

Panasonic 60VT60 (cal by DNice)
Denon 5200 w/ Outlaw 2200 Amps (3)
Ascend Acoustics Sierra 2s F/R & Horizon w/ RAAL Center; Sierra 1s Surrounds; HTM-200s Top Middle and PSB S5 Rear Surrounds; Dual SVS subs
Oppo 103; Onkyo HD-DVD; Apple TV & Roku Stick
Atmos coming soon and Dolby Surround isn't too shabby either.
smurraybhm is online now  
post #1016 of 1505 Old 01-16-2014, 05:05 PM
AVS Special Member
 
p3Orion's Avatar
 
Join Date: Jun 2006
Posts: 1,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 41
Quote:
Originally Posted by vinnie97 View Post

It's not all BS actually. Improper application of the back panel after the foam fix by a 3rd party can damage the panel unfortunately (see the microfactures/delamination complaints in other threads).

Hopefully, the technician is competent enough to follow the instructions of the bulletins they provide. You should call again and mention that when watching it at lower levels in the evening, you *can* hear it over the dialogue, and it's very distracting.

The chance of damage to the panel occurring during a fan fix is making me reluctant to try fan replacement. The first service call when the tech installed the foam fan fix the back panel didn't fit properly and the whole bottom row of of screw holes didn't align correctly. The tech had to apply a little force to get the ethernet cutout to fit over the input and even then the holes weren't perfect. I was a bit worried when that happened.
p3Orion is offline  
post #1017 of 1505 Old 01-16-2014, 05:22 PM
 
vinnie97's Avatar
 
Join Date: Jul 2006
Location: Nunya
Posts: 11,657
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Liked: 1010
Well, fortunately, you have less to worry about with the VT, though that kind of erroneous tinkering with a multithousand dollar panel would also have me nervous.
vinnie97 is offline  
post #1018 of 1505 Old 01-16-2014, 05:42 PM
Senior Member
 
myared's Avatar
 
Join Date: Apr 2009
Posts: 285
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked: 26
Quote:
Originally Posted by p3Orion View Post

The chance of damage to the panel occurring during a fan fix is making me reluctant to try fan replacement. The first service call when the tech installed the foam fan fix the back panel didn't fit properly and the whole bottom row of of screw holes didn't align correctly. The tech had to apply a little force to get the ethernet cutout to fit over the input and even then the holes weren't perfect. I was a bit worried when that happened.

Oh man, that would give me a heart attack... I also am now reluctant to have the fan noise fix done. Here are 2 service menu pdf files that MAX1210 posted on AVS UK. I think the info in them is of value to US model owners too. One file is the service menu for the foam fix and the other is a service menu with instructions on how to properly reinstall the back cover after servicing the TV. Apparently, Panasonic UK has determined that inappropriate reinstallation of the back cover and/or moving the TV without the back cover installed might cause damage to the screen (and they include a picture of a TV with the dreaded microfracture that occurred after improper installation of the back cover).

All this of course makes me pause and maybe even postpone my foam fix until we know more about this story linking inappropriately servicing the TV to the occurrence of microfractures MQM0106DG180713REV1_1_TXP60ZT60_ZT65_Fan_Noise_Improvement.pdf 162k .pdf file . MQMSH0005DG090913REV2_ZT60_ZT65_Panel_Micro_Cracks.pdf 190k .pdf file
Attached Files
File Type: pdf MQMSH0005DG090913REV2_ZT60_ZT65_Panel_Micro_Cracks.pdf (190.2 KB, 125 views)
Donat76 and CamaroDrvr like this.
myared is offline  
post #1019 of 1505 Old 01-16-2014, 08:35 PM
AVS Special Member
 
p3Orion's Avatar
 
Join Date: Jun 2006
Posts: 1,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 41
The one thing I wish the tech had done was to screw all four corners first instead of starting on one side. I knew this in advance, but didn't mention it. mad.gif I just checked the back panel again and I didn't notice anything warped. I also check the screen for spider cracks. All good. smile.gif

If I do have a second appointment to have the fans replaced I will make sure that the tech doesn't affix the screws if it is not aligned.
p3Orion is offline  
post #1020 of 1505 Old 01-17-2014, 02:30 AM
Member
 
BobStern's Avatar
 
Join Date: Jul 2005
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I have some (untested) theories about the cause of the noise.

Everyone seems to experience a low pitch sound that pulses (ramps up and down) at a rate of once per second. I don't think simple fan vibration could cause this cycling behavior so consistently among units. Therefore, I speculate that the problem is that the fan speed control circuit is oscillating at a 1 Hz rate. It probably has a feedback control circuit for maintaining the fan speed at a predetermined value (rpm), but the feedback loop is underdamped, so it keeps overshooting and undershooting the target rpm at a rate equal to the corner frequency of the phase lock loop, i.e., 1 Hz. This causes a burst of DC voltage to the fan once per second, which causes an increase in vibration once per second.

There is no way to fix the above problem without modifying the fan control circuit; for example, by connecting the fan to a fixed voltage source.

However, another theory may be more useful: I believe everyone reports that the problem disappears when the back cover is removed. This suggests that the back cover is amplifying the fan's vibration, and that he fan noise itself would not be bothersome if this amplification by the back cover could be suppressed. Because the pitch is much lower than one would expect to be produced by a fan, I theorize that the low pitch sound we hear that pulses once per second is the natural resonance of the rear panel, not a frequency originally produced by the fan. In other words, the rear panel is acting like the membrane (skin) of a drum, and the fan vibration is transferring energy to the "drum", similar to hitting a real drum with a stick, which causes the "drum" (the rear panel) to vibrate at its natural resonant frequency.

If this theory is correct, a better approach to suppressing the pulsing sound would be to apply damping material to the rear panel. If it is possible to order a rear panel from Panasonic Parts, one could sandwich a thin Sorbothane sheet between the two rear panels to produce constrained layer damping. A simpler but less effective solution would be to apply Sorbothane sheets to a large area of the rear panel using a very thin adhesive. (Sorbothane recommends 3M #80.) Perhaps Sorbothane hemispheres with a self-adhesive back could be attached to the rear panel so that the tip of each hemisphere presses against the aluminum panel that the circuit boards are mounted on. The pressure ideally should be great enough to partially compress the hemispheres.

Any thoughts?
BobStern is offline  
Reply Plasma Flat Panel Displays

Tags
Panasonic , Panasonic Viera Tc P60zt60 60 Inch Plasma Tv , Panasonic Tc P60vt60 60 Inch 3d Smart Plasma Hdtv , Panasonic Viera Tc P65zt60 65 Inch Plasma Hdtv
Gear in this thread - P60vt60 by PriceGrabber.com

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off