Panasonic ZT60 and VT60 Fan/Fridge Noise Production Numbers - Page 40 - AVS Forum
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post #1171 of 1511 Old 01-29-2014, 08:55 PM
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COSTCO

Also if it breaks then you still have Samsung smile.gif

http://www.soundandvision.com/content/2013-top-picks-year

Thanks will try Costco.
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post #1172 of 1511 Old 01-29-2014, 10:48 PM
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Thanks will try Costco.

http://www.costco.com/.product.11680336.htm
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post #1173 of 1511 Old 01-30-2014, 03:51 AM
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Hi,

The technician came today to install the fix. The noise is a little bit reduced, but only about 10%. So I'm gonna complain again. My build is from November. 55vt60e
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post #1174 of 1511 Old 01-30-2014, 04:01 AM
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Hi,

The technician came today to install the fix. The noise is a little bit reduced, but only about 10%. So I'm gonna complain again. My build is from November. 55vt60e

I thought Nov. already had the fix? So it did not?
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post #1175 of 1511 Old 01-30-2014, 04:04 AM
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It really stated Nov 2013 on the inside of the TV. Maybe Europe has a different policy.
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post #1176 of 1511 Old 01-30-2014, 06:09 AM
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I have been watching some tv now, and the noise is less noticeable after the fix, so maybe a 50% noise reduction after all. But still audible when there is a silent scene.
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post #1177 of 1511 Old 01-30-2014, 08:59 AM
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I just had the fan fix done. The techs had the exact picture posted earlier. When they put the foam strips on they were not exactly in the same position as the picture. The top strip on the left was a little higher and the strip on the right fan was a little further to the right. The fan noise is definitely less but I can still hear it a little with the sound on. I would say it is about 50% less. Does anyone think that the slight mispositioning of the strips matters? They did the repair while tv was on the stand.
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post #1178 of 1511 Old 01-30-2014, 10:30 AM
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Quote:
Originally Posted by Terebi View Post

I thought Nov. already had the fix? So it did not?

Quote:
Originally Posted by CypherMK View Post

It really stated Nov 2013 on the inside of the TV. Maybe Europe has a different policy.

I have asked about exactly the same several times, but no-one seems to know, or do answer. rolleyes.gif

The panel is produced in NOV 13, but the TV misses the foam fix. Why? it's because the back cover and electronics is dated JUNE 2013 (due to the Serial number).

This can only mean 2 Things.

1. The TV's are returned and repaired with a new panel, and sold as new tv's.

2. The back cover has been stored since JUNE 2013 and paired with a panel as late as NOV or DEC 13. But why should the back cover have been in a storage for so long?

I have no idea. Option 1 seems most likely :-(
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post #1179 of 1511 Old 01-30-2014, 11:05 AM
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Originally Posted by Focalom View Post


I have asked about exactly the same several times, but no-one seems to know, or do answer. rolleyes.gif

The panel is produced in NOV 13, but the TV misses the foam fix. Why? it's because the back cover and electronics is dated JUNE 2013 (due to the Serial number).

This can only mean 2 Things.

1. The TV's are returned and repaired with a new panel, and sold as new tv's.

2. The back cover has been stored since JUNE 2013 and paired with a panel as late as NOV or DEC 13. But why should the back cover have been in a storage for so long?

I have no idea. Option 1 seems most likely :-(


Wow! My Serial starts with 31 but sticker in back says June 2013. Is that true that 31 means January 2013 ?
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post #1180 of 1511 Old 01-30-2014, 11:13 AM
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Originally Posted by rlpatel View Post

Wow! My Serial starts with 31 but sticker in back says June 2013. Is that true that 31 means January 2013 ?

Thats is what the Panasonic lady told me on phone. First number indicates year (3=2013), second number indicates month, third number indicates period in month or something (not day, but "period") How they do it with OCT,NOV,DEC (10,11,12) I don't know.

But what do you mean by sticker on back? Do you mean the sticker on the panel (which you can see through the ventilation holes) or the sticker on the back cover?
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post #1181 of 1511 Old 01-30-2014, 11:15 AM
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Originally Posted by Focalom View Post

Thats is what the Panasonic lady told me on phone. First number indicates year (3=2013), second number indicates month, third number indicates period in month or something (not day, but "period") How they do it with OCT,NOV,DEC (10,11,12) I don't know.

But what do you mean by sticker on back? Do you mean the sticker on the panel (which you can see through the ventilation holes) or the sticker on the back cover?

I have sticker on Box and Sticker on Back Cover which match. But I just read in earlier thread we are suppose to read the 3 numbers after MK3 which show day in 2013. Mine is MK3162 which I guess means June 11, 2013. I guess using Cal Date # takes care of Oct thru Dec numbering scheme.
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post #1182 of 1511 Old 01-30-2014, 12:16 PM
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Originally Posted by rlpatel View Post

I have sticker on Box and Sticker on Back Cover which match. But I just read in earlier thread we are suppose to read the 3 numbers after MK3 which show day in 2013. Mine is MK3162 which I guess means June 11, 2013. I guess using Cal Date # takes care of Oct thru Dec numbering scheme.

Then the system must be different from what we us in europe. When I called the service-shop, he loged into the Panasonic-system and looked up my Serial to check if there was any service-bulletin on that particular model. He said that the TV was made in JUNE 2013.

When I later that day called Panasonic, the lady said that the database showed my TV was made in JUNE 2013. I could also verify that by myself by looking at at the Serial-number she said. Again June 2013.
How is that possible when the panel is made in NOV 2013 I asked her, and she could not give any answer to that. She came with a theory that the back-panel/cover could have been made in JUNE, stored away in the factory-storage, until the panel was made and then assembled.

But this makes no sense to me. I fear Panasonic has made some shortcuts in the last months of plasma to reduce costs.The TV's had made great reviews so People will buy them anyway...
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post #1183 of 1511 Old 01-30-2014, 02:12 PM
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For the North American VT models, the serial number is 3aaa... where the 3 stands for 2013 and the aaa represents the number of days in the year (Julian calendar.) The European models use a different method.

Larry
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post #1184 of 1511 Old 01-30-2014, 02:21 PM
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This is somewhat off-topic as it is related to ST60 buzzing. My 60" ST60 was noticeably louder than my Pioneer PRO-101FD regarding the buzzing inductors. The tech who serviced my set was friendly and mostly capable, but he was not trained in handling ESD-sensitive components at all (electronic boards). He even placed the boards directly on my area rug, which is a very bad idea. He also man-handled the fragile flex cables that connect the board to the panel (there are special tools to handle these cables). The replacement boards he had did not appear to be new, and were missing the little rubber vibration reduction pads on the heatsinks. The potting material on the replacement boards was poorly applied compared to the factory-installed boards. However, both boards were a bit quieter than the factory boards so I had him replace both. Since I work in a shop where we fabricate component boards and electronic boxes I feel the technician was not trained to properly handle electronic boards, and the replacements boards he installed seemed to be built to lesser quality standards. Knowing what I know now I would have left well enough alone and not had the service performed; my set may be a bit quieter now but the replacement board's poorer quality and technician's handling may lead to other issues down the road. Oh well. tongue.gif Perfectionism is a curse! biggrin.gif

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post #1185 of 1511 Old 02-01-2014, 12:13 AM
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This is somewhat off-topic as it is related to ST60 buzzing. My 60" ST60 was noticeably louder than my Pioneer PRO-101FD regarding the buzzing inductors. The tech who serviced my set was friendly and mostly capable, but he was not trained in handling ESD-sensitive components at all (electronic boards). He even placed the boards directly on my area rug, which is a very bad idea. He also man-handled the fragile flex cables that connect the board to the panel (there are special tools to handle these cables). The replacement boards he had did not appear to be new, and were missing the little rubber vibration reduction pads on the heatsinks. The potting material on the replacement boards was poorly applied compared to the factory-installed boards. However, both boards were a bit quieter than the factory boards so I had him replace both. Since I work in a shop where we fabricate component boards and electronic boxes I feel the technician was not trained to properly handle electronic boards, and the replacements boards he installed seemed to be built to lesser quality standards. Knowing what I know now I would have left well enough alone and not had the service performed; my set may be a bit quieter now but the replacement board's poorer quality and technician's handling may lead to other issues down the road. Oh well. tongue.gif Perfectionism is a curse! biggrin.gif

Board replacement!
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post #1186 of 1511 Old 02-01-2014, 08:23 PM
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I've started this thread to log all cases of microfractures we know of: http://www.avsforum.com/t/1515499/the-zt60-microfracute-case-log-and-discussion

Please help me keep this log up-to-date by chiming in with any new info you have about such cases. Hope you find this helpful.
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post #1187 of 1511 Old 02-03-2014, 04:56 PM
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Well guys, I never got a chance to report back on the fix for the buzzing noise because I decided to sell the TV. The one major thing I could not stand was the flicker. I went to best buy and looked at the Samsung F8500 plasma and it flickers the same. So I sold the TV and waiting for the Samsung UN65F8000 led to arrive. In a good 3 years I'm sure there will be something even better, but for now the F8000 will have to do.
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post #1188 of 1511 Old 02-05-2014, 12:42 PM
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I got my July 2013 Build 65ZT60 panel on Feb 1. I ordered the fan fix today.  The repair company is scheduled to come next Wednesday.  Hopefully they will repair it in one trip.  

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post #1189 of 1511 Old 02-05-2014, 06:30 PM
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I've started this thread to log all cases of microfractures we know of: http://www.avsforum.com/t/1515499/the-zt60-microfracute-case-log-and-discussion

Please help me keep this log up-to-date by chiming in with any new info you have about such cases. Hope you find this helpful.

Gracias, Thank you, Danke, Merci biggrin.gif
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Gracias, Thank you, Danke, Merci biggrin.gif

De nada. You're welcome. Bitte. De rien.
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post #1191 of 1511 Old 02-07-2014, 03:14 PM
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So maybe it was a mistake but I got the fix from Panasonic for the fans!

 

I hope I don't get micro-fractures, the tech seemed to be very knowledgeable, Panasonic had sent him a pro microphone to measure and record the noise level. He seemed to be knowledgeable, he used to build CRT TVs and services all the brands.

 

I checked to make sure there was no bumps, and that it was aligned before putting on any screws. It seems to have helped the fans slightly but I can still hear them when on mute!

 

I will get the Costco extended warrant for $99, just in case I will keep you all informed

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post #1192 of 1511 Old 02-07-2014, 04:54 PM
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Quote:
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So maybe it was a mistake but I got the fix from Panasonic for the fans!

I hope I don't get micro-fractures, the tech seemed to be very knowledgeable, Panasonic had sent him a pro microphone to measure and record the noise level. He seemed to be knowledgeable, he used to build CRT TVs and services all the brands.

I checked to make sure there was no bumps, and that it was aligned before putting on any screws. It seems to have helped the fans slightly but I can still hear them when on mute!

I will get the Costco extended warrant for $99, just in case I will keep you all informed

Did the service tech measure the noise level before and after the fix? If so, how much was the noise reduced?
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post #1193 of 1511 Old 02-07-2014, 04:58 PM
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Was he able to record it and/or get a sound level?
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post #1194 of 1511 Old 02-07-2014, 05:13 PM
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Was he able to record it and/or get a sound level?

Yes measurements were made at six feet and at three inches
Pre-fix the room was hovering at 30db six feet from the screen with no TV on.

TV turned on the mic recorded
- 40 db at six feet
- 53 db at three inches

After the fix
TV turned on the mic recorded
- 38 db at six feet
- 50 db at three inches

So not much attenuation rolleyes.gif

This was done with white screen to generate the largest amount of current!

The technician apologized that he could do any better than that unfortunately, the new fans are the same design, he tightened all the boards to ensure no rattling.

Panasonic provided him with a Pro Audio Galaxy Audio CM-150 Check Mate SPL Meter specifically to measure
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post #1195 of 1511 Old 02-07-2014, 05:21 PM
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^^ Wonder what impact the rubber washers would have had on those numbers...
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post #1196 of 1511 Old 02-07-2014, 05:24 PM
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^^ Wonder what impact the rubber washers would have had on those numbers...

I don't think any the noise is due to air flow so unless the airflow is changed or something absorbs these frequency rubber washers won't help! The fans are poorly designed
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I don't think any the noise is due to air flow so unless the airflow is changed or something absorbs these frequency rubber washers won't help! The fans are poorly designed

The rubber washers apparently tighten up the fan screws just enough to abate some more of the vibrational noises (for lack of the proper terminology), apparently can help somewhat to do what the foam alone doesn't quite manage; they were discussed a few months back.
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post #1198 of 1511 Old 02-07-2014, 05:33 PM
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Thanks, I think that is the first before / after numbers I have seen.

It made a difference right? Isn't 3db noticeable as sound stuff goes?
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post #1199 of 1511 Old 02-07-2014, 05:37 PM
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Quote:
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I don't think any the noise is due to air flow so unless the airflow is changed or something absorbs these frequency rubber washers won't help! The fans are poorly designed


With the back cover off and the TV turned on the fans are silent! The noise is due only by air pulsation within the enclosed "box" and the vent holes.

Larry
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post #1200 of 1511 Old 02-07-2014, 05:40 PM
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Thanks, I think that is the first before / after numbers I have seen.

It made a difference right? Isn't 3db noticeable as sound stuff goes?

A 10 db spl difference is needed to appear to be half (or twice) as loud.

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