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Discussion Starter · #1 ·
It appears as though fan noise may be an issue with Panasonic DLPs. As a new owner of a PT-60DL54 (with excessive fan noise), I'd like to get a feel for what other owners have experienced with their sets.


I think it would be helful for current and prospective owners to convert some of the subjective feedback that's been posted on the subject into something a bit more quantifiable.


Thanks!!
 

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For what it is worth, forum polls are still biased toward the negative since many many happy owners simply are watching their tvs and not worrying about reading/posting here!
 

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Discussion Starter · #3 ·
Quote:
Originally posted by jdavis37
For what it is worth, forum polls are still biased toward the negative since many many happy owners simply are watching their tvs and not worrying about reading/posting here!
I wholeheartedly agree, but finding out if others are having a similar problem helps with the "you're the only one who has reported this problem" reply from the manufacturer.


It also gives prospective buyers a better idea of what to look for when they are auditioning sets (in my case, I stuck my head near the back of the set in the showroom, heard a faint WHRRRRRRR, and considered fan noise a non-issue). If I were auditioning today, I'd try and eliminate surrounding noise as much as possible (I was in a smaller boutique store) and listen a lot more closely...
 

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Discussion Starter · #6 ·
Tech came out last night to look at my PT-60DL54. He confirmed my color wheel is excessively loud (high pitched whine). He said the fan itself was just slightly above normal in volume.
 

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Quote:
Originally posted by Quill
Tech came out last night to look at my PT-60DL54. He confirmed my color wheel is excessively loud (high pitched whine). He said the fan itself was just slightly above normal in volume.
Quill...please keep us posted on this issue and how they go about resolving the noise...

color wheel excessively loud? is he gonna replace the wheel? replacing a fan is much simpler task.
 

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Discussion Starter · #8 ·
I called the service shop, and apparently they are talking to Panasonic about replacing my entire light engine (?) must be easier than simply changing the wheel, I guess.


I forwarded their infor to the Panasonic customer service rep who had replied to my web-site complaint....I'm curious to see what he says.


Meanwhile, the whine is getting piercing, and the fan is still annoying. :(


PQ is awesome though...so that's something!
 

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Quote:
Originally posted by Quill
I called the service shop, and apparently they are talking to Panasonic about replacing my entire light engine (?) must be easier than simply changing the wheel, I guess.


I forwarded their infor to the Panasonic customer service rep who had replied to my web-site complaint....I'm curious to see what he says.


Meanwhile, the whine is getting piercing, and the fan is still annoying. :(


PQ is awesome though...so that's something!
hhmmmm this is no longer a simple fan noise which can be replaced with a $25 fan?
 

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Discussion Starter · #10 ·
Quote:
Originally posted by RudyMeister
hhmmmm this is no longer a simple fan noise which can be replaced with a $25 fan?
Sorry - I was referring to the color wheel whine. The tech didn't really feel the cooling fan was making excessive noise, but he said he'd see what he could do... :(
 

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Quill...I'm confused :( the noise is NOT coming from the fan? but it's from the color wheel? yet the panasonic tech wanted to replace your entire light engine?
 

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Discussion Starter · #13 ·
Quote:
Originally posted by RudyMeister
Quill...I'm confused :( the noise is NOT coming from the fan? but it's from the color wheel? yet the panasonic tech wanted to replace your entire light engine?
I may have misquoted him, but is sounded to me like you couldn't just replace the color wheel, and instead had to replace a component which includes the color wheel.
 

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Quote:
Originally posted by Quill
It appears as though fan noise may be an issue with Panasonic DLPs. As a new owner of a PT-60DL54 (with excessive fan noise), I'd like to get a feel for what other owners have experienced with their sets.


I think it would be helful for current and prospective owners to convert some of the subjective feedback that's been posted on the subject into something a bit more quantifiable.


Thanks!!
Could you elaborate a bit on this? Like if it really is a fan or not, if it is only noticable when the set is powered on, or if it is something you notice 24/7 even with the set powered off?


As to the light engine replacement, I think that is their first step-I had the same thing happen with mine & it isn't even a DLP (PT-50LCX63). I'm curious as to what it is exactly that is causing the noise.
 

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Quill - See my comprehensive posts #1007 and #1013 on the thread titled "Panasonic DLP has Landed." My posts describe the fan noise problem I experienced with the Panny DLP, and the posts in that same number range also describe fan noise problems suffered by other owners of the Panny PT50DL54 DLP TV. -Former Pan DLP Fan
 

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Quote:
Originally posted by FormerPanDLPFan
Quill - See my comprehensive posts #1007 and #1013 on the thread titled "Panasonic DLP has Landed." My posts describe the fan noise problem I experienced with the Panny DLP, and the posts in that same number range also describe fan noise problems suffered by other owners of the Panny PT50DL54 DLP TV. -Former Pan DLP Fan
which page number is your thread. I followed that thread very closely but after a while, the thread is getting simply too big.


Just a note. Not all Panny owners experience the noise problems. Having said that I guess it means that the possibility of your set having this issue is a very distinct possibility since so many owners reported that they have this issue on to a certain extent.
 

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Response to RudyMeister's Question Posted on Nov. 4, 04 : Hi RudyMeister, In answer to the question you posted earlier today, my two posts are both located on the "Panasonic DLP Has Landed" thread on page 51, and both of my posts were written on November 2, 2004.


I'll warn ya that both of my posts are quite lengthy, but I took the time to include in my posts a lot of relevant detail in the hope that others might benefit from reading - - and being comprehensively warned beforehand - - about my experience with the loud and annoying fan noise of my Panasonic PT50DL54 DLP HDTV. You will also note that the last few pages of the "Panasonic DLP Has Landed" thread contain a lot posts from disappointed Panny DLP owners, all because of fan noise. I decided to return the Panny DLP after the Panasonic authorized service technician also agreed the DLP's fan was noisy, and after the technician's significant but unsuccessful efforts to mitigate or fix the fan noise. I also had a very lengthy but disappointing discussion with the manager of Panasonic's customer call center who refused to acknowledge that the Panny DLP had any problem at all ("It is working within its performance specifications, sir!") I'm now a happy owner of an LCD rear projection HDTV. I hope my two posts help. -Former Pan DLP Fan.
 

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Former Pan Fan, all of the info you provided to us all in this forum is greatly appreciated. Sometimes more info is better than less or none.


Just out of curiosity, which LCD did you end up with? did you ever consider the Tosh DLP?


Thanks
 

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Replacement for Panny DLP - - Respose to RudyMeister : Hi RudyMeister, I'm responding to your inquiry regarding the type of LCD rear projection I purchased in place of my disappointing Panny DLP (noisy cooling fan).


I purchased the Sony 55 inch LCD rear projection HDTV (KDF 55WF655). What can I say, the Sony is excellent ! In fact, on some Discovery Channel HD, HBO HD, and ESPN HD broadcasts, I find myself laughing out loud at the excellence of the picture. I'm very happy with the precise and vivid picture as well as the aesthetics of this recently unveiled 55 inch Sony. There are some other threads on AVS Forum that discuss this particular Sony model and, in my opinion, all the positive posts for the Sony KDF 55WF655 reflect my personal experience and evaluation of this 55 inch LCD rear projection.


Keep in mind that I consciously tried to stay away from the Sony brand because I believe that you pay a premium for the "Sony name" without receiving a proportional increase in picture quality and useful features in comparison to other brands which have lower price-points. But the Sony fit my needs, and it easily met and generally exceeded all my criteria - - especially overall picture quality, acceptable price-performance ratio, no fan noise, good black-level performance, build quality, reasonably "future-proof", and established repair and parts network. In that order. I'm very happy with the Sony 55" LCD.


Finally, in response to your inquiry, yes I considered very carefully the Toshiba DLP. I own a Toshiba 36" direct view TV and it displays an excellent picture with no repair or maintenance problems whatsoever so my evaluation of the Toshiba DLP started off on good footing. I took a long time evaluating the Toshiba DLP at three separate BestBuys in my area, and on the Internet, and ultimately it fell short. My greatest concerns regarding the Tosh involved picture quality and build quality, as follows:


(1) In my opinion, even though the Toshiba DLP contains the more recent evolution of the Texas Instruments DLP chip compared to the Samsung DLP (model 5063) and if my memory is correct, even though the Toshiba also has more segments in its color wheel in comparison to the Samsung model 5063, the Toshiba appeared to be one or two notches below the Sammy DLP and the Sony LCD in picture quality. Let me be more specific :


The Toshiba DLP's picture quality looked (a) slightly more "grainy" than the Sony LCD and Sammy DLP, and (b) the Tosh had slightly less vivid colors than the Sony and the Sammy - - even after I adjusted the Toshiba's color, and (c) in dark scenes, the Toshiba displayed noticably less definition within the darkness in comparison to the Sammy's picture, and the Toshiba was slightly worse (by the narrowest margin) when compared against the Sony's black-level performance. Keep in mind that items (a) and (b) above are subjective. But item (c) involving black-level performamce is objective

- - the Toshiba displayed noticeably less definition within a dark scene in comparison to the Sammy DLP. You could see more objects and there was more definition within the darkness when viewing the Sammy DLP.


I used "The Last Samurai" as a reference DVD because it has excellent outdoor color scenes (winter whiteness, fall leaves in various fall colors of orange and yellow, and spring vividness of green grass and pink Japanese cherry blossoms). Most importantly, in The Last Samurai there are two excellent reference scenes which I used to test black-level performance: (1) the opening scene panning onto a drunk Tom Cruise in a darkened area of a theater, and (2) a nature scene half-way into the movie where an orange sunrise is rising over a darkened hill and valley. In both these scenes, the Sammy showed excellent black-level performance and with the Sammy I could see darkened shadows and outlines of trees on the darkened hill and valley, whereas the Toshiba merely displayed a flat black hill and valley with no definition within the shadows. The Sony LCD was only the narrowest margin better in black-level performance in comparison to the Toshiba DLP.


(2) I still watch a great deal of standard non-HD programming, and with all the networks fighting the FCC regarding the actual deadline for switching over to HD, I anticipate that extensive HD programming will remain relatively limited for at least one to two years. Moreover, there's a bunch of original first-run programming and quality re-runs on TV (both drama and comedy) that I will continue to watch but which were not originally filmed in High Definition format, and therefore I will be viewing some re-runs in standard definition or, at best, enhanced definition, for quite some time.


Accordingly, I want my HDTV to display a good non-HD signal, and on this issue, the Sony 55" LCD rear projection TV displays a much better standard non-HD picture than the Sammy DLP, Mitsubishi DLP, and the Toshiba DLP. In fact, to my eyes, the Tosh DLP was the poorest in displaying a standard definition TV signal when compared against the Sony LCD rear projection, Sammy DLP, and Mitsubishi DLP. (By the way, I stopped "testing" and evaluating the Mitsubishi DLP when I noticed that the Mits has a noticeably loud cooling fan.)


(3) Finally RudyMeister, I was a little concerned about the Tosh's build-quality. Oh, it's fine as TV's generally go. But compared to the Sony 55 inch LCD, the Sammy 50 inch DLP, and the Mitsubishi 52 inch DLP, these three other manufacturers appear to build a more robust HDTV. It just seemed to me that the Tosh cabinet materials were "thinner". I dunno. Also, and this is really just my personal preference, on the Toshiba I thought that the narrow black plastic strip that runs horizontally along the front of the cabinet about five inches above the base of the TV makes the Toshiba look kinda cheap. Why?, see below.


In the early 1990s, Magnavox had similar black plastic strips placed on their tube TVs, and these black plastic strips had pressure sensitive buttons behind the plastic to turn the TV off and on, as well as other basic functions - - just like the current Toshiba DLP. Over time, the plastic strip would start warping and separating from the TV cabinet (not because of fingers pressing the plastic, but simply because of the moderate amount of heat generated by the TV itself). Also, because the plastic was black and semi-shiny, over time, one could see warps, waviness, and indentations in the plastic, and it made the already-cheap Maganavox TVs look cheaper. I'm not saying that this would occur with the Toshiba's black plastic strip, but in general I stay away from these black plastic pressure strips because (1) they are a cheap design feature not in keeping with a premium-priced TV, and (2) I had one of those aforementioned cheap Magnavox TVs in college. :) Hope some of this helps. End of Post. -Former Pan DLP Fan.
 

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FormerPanDLPFan,


Thanks for all your posts. They have been very informative. I've been looking to purchase a HDTV RP for some time now, and have eyed the Panny. However, due to your problems with the fan, as well as others, it has made me gun shy about pulling the trigger. I'm not sure that the loud fan noise will bother me, so am willing to give it a shot. Besides an online retailer based in IL has a great price, is giving a 10% discount until Sunday, has free shipping, is an authorized online retailer of Panny, and has a decent return policy (just freight, roughly $150 from the day of purchase, not delivery). So, I am very close to buying it.


My question to you is how would you rate the Sony WEGA's picture to the Panny? If the fan noise didn't bother you, or if it didn't have fan noise issues, would you still choose the Sony over the Panny?


I'm sorry if you answered this question earlier in you posts, but I thought you might have a new perspective on things now that you've owned both. Thanks in advance for any comments you might have.


Austin Danger Powers


"I swear, that's not MINE!"
 
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