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Panasonic ZT60 and VT60 Fan/Fridge Noise Production Numbers - Page 3

post #61 of 1369

Thanks.
post #62 of 1369
BIG THANKS to Lost and Bigmoviefan for helping to move this problem towards a solution.
post #63 of 1369
Quote:
Originally Posted by Glashub View Post

BIG THANKS to Lost and Bigmoviefan for helping to move this problem towards a solution.

What was the solution? The fan filters?
post #64 of 1369
Nice work guys - glad to hear you will soon be enjoying your tv the way I am!

Getting sucked into a vortex of insane work - the ZT was a great late-night companion after basically cancelling my life for the month of July! I mean it! really made it easier to work every day of the month until last Saturday!

And REALLY happy to visit the forum and see this good news!
post #65 of 1369
Quote:
Originally Posted by Ace_BB6 View Post

What was the solution? The fan filters?

The foam inserts for the fans.
post #66 of 1369
From the UK site


"I promised the guy who showed me that I will not post the information, someone else may want to to post it though.

However I can say the fix is 3 foam strips per fan. The 3 strips are stuck to the chassis directly under the left, right and top edges of the fan, filling the gap between the chassis and bottom of the fan.

It looks to me like the foam strips effectively only allow the fan to pull air from the bottom and in doing so reduce the amount of air that flows through the fan.

Hope that helps"
post #67 of 1369
hello - purchased a ZT60, 65" model in los angeles, un-boxed it yesterday.

have been watching it for a few hours now - tree of life, hugo, the master

A05971 - NO fan noise (!)

so happy!

amazing, amazing pic quality. was so afraid there would be something less than satisfying about this tv, as i had just returned a giant LED for having some pretty horrific clouding and terrible black levels/screen uniformity. am happy to be wrong.

breathtaking tv. worth every penny!
post #68 of 1369
A02732 has the fan noise.

It's possible that many more of these sets have the same issue but that the typical noise within the room, or the distance from the set, masks it. When either our fridge or AC is running the noise is relatively unnoticeable. As soon as they're both off it's quite obvious.

I'd wager that some who are reporting quite TVs have a sound floor - a din - that's above ours. It might also be possible that some TVs aren't affected, though if the issue is a design flaw and none of the production sets include these foam inserts then it stands to reason that all are affected.
post #69 of 1369
Just had a Firmware update to my European ZT60. This changed the fan behavior and silenced my fans. The number on the firmware update is: 3858-10202.
Anyone else hear the difference?
Edited by SolidSwede - 7/28/13 at 4:56pm
post #70 of 1369
Hi,

I see in all the post that most of you have 60" or 65" ZT and/or VT set.
I'm planning to buy the 55" VT set. So I was wondering if someone have the 55" and if they got the fan noise problem?

Thanks
post #71 of 1369
Quote:
Originally Posted by SolidSwede View Post

Just had a Firmware update to my European ZT60. This changed the fan behavior and silenced my fans. The number on the firmware update is: 3858-10202.
Anyone else hear the difference?

According to the folks on the AForum, no change.
post #72 of 1369
Hmmm... but there is a difference for me at least cause I always get annoyed after midnight.... hm will do some more testing.
post #73 of 1369
Just got off of the phone with Panasonic product support. Made the call to piss and moan about the fan noise on my 3 week old 65VT60 (April 2013 build). The condensed version of the interaction is that I have a service visit scheduled for Aug 6 to address the problem. The non-technical CSR couldn't/wouldn't tell me what the battle plan was. She did leave our conversation for a bit to talk with the tech folks, but would not divulge whether the proposed solution was the same as that for the UK.
Interesting that they're using a service company located 56 miles away from me, even though the best buy I purchased from is only 3 miles down the road!
post #74 of 1369
The tech probably bought from BB and had service work done by them and thought that to keep you happy it would be best to use someone else. smile.gif
post #75 of 1369
Quote:
Originally Posted by TWD View Post

According to the folks on the AForum, no change.

You are right.... now it's back.....*sigh*
post #76 of 1369
got my 65ZT60 yesterday and it went back today...........the loudest sound ever heard by the delivery guys (who also pick up defectives).......and the same for me..........pissed me off.

I can't understand how they would leave the factory like that....don't they plug it in and have a listen......... The book with it states how proud they are about their achievement and how it is hand built etc????
post #77 of 1369
How long does it take to notice the fan noise? Does the fan start out loud immediately after power up or does it take a bit to warm up and then it kicks in? I ask because I am having one delivered in a few days and want to know if I will be able to tell on delivery inspection if mine is one with loud fans.
post #78 of 1369
It's immediate, but if you have a particularly cool room in which it will be placed, it might take some time before you'll notice them at typical cooling speeds.
post #79 of 1369
Thread Starter 
Quote:
Originally Posted by Vanguard223 View Post

How long does it take to notice the fan noise? Does the fan start out loud immediately after power up or does it take a bit to warm up and then it kicks in? I ask because I am having one delivered in a few days and want to know if I will be able to tell on delivery inspection if mine is one with loud fans.

It is instant. However, it is much more noticeable at night when ambient noise is minimum.
post #80 of 1369
Hi Guys, I solved the fan noise problem on my ZT65 by doing the following...

There are three fans on the back. I made essentially what look like dryer vents and taped them carefully over the left and right fans.
I made the vents out of my wife's 1/2 inch thick foam rubber exercise matt. I cut a square slightly larger than the fan and glued borders about a half inch thick to the top and both sides, leaving the bottom open for airflow. I left a good 3/4 of an inch from the surface of the fan. As the fans blow outward, the air is pushed out and down through the vent. I taped these to the back of the unit using regular scotch tape. It works beautifully! fan noise is reduced more than 80%, so I did not bother to do the middle fan. I tested the heat level before and after and there is no difference that I can tell.

I was all set to return my unit before I tried this. Now I am a very happy camper because our new plasmas look awesome smile.gif

That being said, I really have to wonder who is responsible for quality control at Panasonic? They should have thought of this and implemented it into the design. It's funny, I have always had some kind of issue with every display I have bought...my 31" Proton had lines in the display tube from the manufacturing process. My Pioneer Elite PRO530HD had a green line problem that mysteriously cleared up after five minutes of warm up...and now ...FAN NOISE...what a world smile.gif

Good luck!
post #81 of 1369
Thanks Alpha. Any chance you could post some pics if it's not too much bother? I'm having troubles visualizing what you've created.
post #82 of 1369
Quote:
Originally Posted by AlphaZulu View Post

Hi Guys, I solved the fan noise problem on my ZT65 by doing the following...

There are three fans on the back. I made essentially what look like dryer vents and taped them carefully over the left and right fans.
I made the vents out of my wife's 1/2 inch thick foam rubber exercise matt. I cut a square slightly larger than the fan and glued borders about a half inch thick to the top and both sides, leaving the bottom open for airflow. I left a good 3/4 of an inch from the surface of the fan. As the fans blow outward, the air is pushed out and down through the vent. I taped these to the back of the unit using regular scotch tape. It works beautifully! fan noise is reduced more than 80%, so I did not bother to do the middle fan. I tested the heat level before and after and there is no difference that I can tell.

Cool! Glad it worked for you. Although, I wonder if you should leave the top open to airflow instead of the bottom (heat wanting to rise, etc). Not sure if that would make it louder, but might be better for airflow.
post #83 of 1369
post #84 of 1369
Same concept as the diffusers the uk avforums built, it really does work well. I have seen no adverse effects with this other than about a 80% reduction in fan noise. I'm not exactly that thrilled about the foam strip solution either having the fan take in less air as a solution.....the diffusers actually don't seem that bad of a solution and my tv is wall mounted, no one will ever see behind there to see the diffusers and the trouble of taking the screen off....having the tech take it apart to put in some small foam strips to pull in less air.....meh. I'm glad for people that have the tv on stands though if the foam thing proves to be a good solution.
post #85 of 1369
It would make it louder. The problem is the noise from the fan motor, not the airflow. Which is why I am dubious about the fix of inserting foam around the fan on the inside. You will still hear the noise from the fan motor. The baffles reduce the fan motor noise dramatically and the fan is moving the air, so there is no heat build up that I can detect.
post #86 of 1369
Quote:
Originally Posted by AlphaZulu View Post

It would make it louder. The problem is the noise from the fan motor, not the airflow. Which is why I am dubious about the fix of inserting foam around the fan on the inside. You will still hear the noise from the fan motor. The baffles reduce the fan motor noise dramatically and the fan is moving the air, so there is no heat build up that I can detect.

If you read the UK forum ref the Fan noise you would find out that its not the Fans making the noise. Some on the UK forum actually removed the back cover. Once removed the fan noise could not be heard. Its the air movement around the fans and opening in the back cover.

For all those waiting on a FIX from Panasonic - I opened a case on July 8 ref my 65VT60 (second unit). No help at that time. However asked to leave the case open as unresolved. Call last Friday to get any update from them and it was like starting from the begining. However they did say they would have someone get back to me within 48hrs. Well that never happened. Get home this afternoon and have a call from a TV repair center and I need to call ref the 65VT60. I called them and the person on the phone indicated Panasonic has a fix for the fan noise , he said the parts (foam pads) will be in next week and they would like to install them in the TV. I'll update the forum once they are installed.

I would suggest anyone with the fan noise - call panasonic and open a case.


Randy
post #87 of 1369
Interesting...please let us know the result...thanks
post #88 of 1369
06TL, yes, it looks like Panasonic does have a solution to quite the fan noise. Value Electronics has been offering them pre-installed with their all black bezel ZT60. I guess they paint the silver outer frame.
post #89 of 1369
P65ZT60 - A05692 - June 2013. Got it two weeks ago today and have about 125 hours on it and only notice a slight whirling from the fans when I go behind the unit. It is on a somewhat enclosed stand about 18 inches from the wall.
post #90 of 1369
We just got our ZT60 64" unit and do not hear the fan noise so either we were lucky or the placement of the TV has a direct bearing on the noise level. If there is an issue I suspect that since we have curtains in back of the TV the curtains are absorbing the noise, preventing the noise from bouncing against the wall towards the front. Suggest those having issues with fan noise to place some noise absorbing material such as curtains or even a cork board to alleviate the issue.
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