Where are all these phantom dead pixels? - AVS Forum
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post #1 of 11 Old 04-16-2001, 06:09 AM - Thread Starter
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Over the course of the last month I’ve seen members of this forum go off the deep end in regard to the “possibility†of dead pixels in Sanyo projectors. Several have yelled, screamed and even demanded that dealers offer a better warranty than the Mfg. themselves.

My 3 questions are simple,

1)Haven’t all LCD projectors had the “possibility†of dead pixels since their inception or is this something new in the most current models?

2)I’ve read posts from members who received projectors from other Mfg’s with dead pixels, but I don’t recall any posts from members stating that their “Sanyo†projector was received with dead pixels. By a show of hands, who here has actually received a Sanyo XP18, XP21 or PLV-60 with a dead pixel, and who has received them with no defects?

3)Is this situation being blown way out of proportion, or does it just seem that way to me?

Mike
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post #2 of 11 Old 04-16-2001, 07:53 AM
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It is not being blown out of proportion. The Sony and the
Sanyo have performance characteristics that other's do not.
We wish to consider buying their products.

We are offering a business proposition, and it is very simple.
There is no need for anyone to get hot under the collar.

We have money. They have some projectors. If they want to
exchange some of our money for one of their projectors then
they can provide a product that we feel is acceptable.

Our offer is this. Money, for a projector with no bad pixels.
If they cannot provide this, then we can buy a different
projector. Thank you very much.

Just business.

John.
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post #3 of 11 Old 04-16-2001, 11:09 AM
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I don't think it will be easy to get pixel perfect projectors. I am the happy owner of a VT540. I purchased it new. It had some bad pixels including 2 always blue pixels which were very distracting. I called NEC tech support . They were very obliging. Since I was using the projector for HT, they said to send it back and they would try to find one with better pixels. The replacement has a couple of yellow on pixels with only one on the edge of the actual 16x9 image. This is much better. I am happy with the picture and would recommend it. For the price, it is an excellent value.
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post #4 of 11 Old 04-16-2001, 11:28 AM - Thread Starter
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5 hours into the poll and still no unsatisfied Sanyo projector owners. Interesting.

Mike
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post #5 of 11 Old 04-16-2001, 03:31 PM
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I just recently purchased a used Sanyo PLC 8800N projector -- XGA resolution. It is at least a couple years old, but the bulb is new. I sent it to Sanyo because the prior owner screwed up the internal settings after replacing the bulb. In short, for $250.00 they reset all the internal settings, and cleaned and aligned the optics. Now, the projector looks great, and has no dead pixels. Again, this unit is at least 2 years old without any dead pixels. Not bad, considering it cost me $1025.

Steve
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post #6 of 11 Old 04-16-2001, 06:02 PM
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I received a 21N a few days ago and haven't noticed any dead pixels.

John


------------------
John

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post #7 of 11 Old 04-16-2001, 06:55 PM
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I think most projector panels are pretty tough, if they come out of the box without any dead pixels they will usually stay that way for the life of the machine. Dead pixels are usually the results of a manfacturing defect, not normal wear and tear type damage (CRT burn-in/fading for example).

I think people might have gotten the idea that Sanyo projectors somehow have more dead pixels than others, I don't think that's necessarily true. I think it might even be plausible that they use the SAME LCD chips as other similar projectors. I guess it's because people who are interested in that particular projector have started to try and organize a "power-buy" type arrangement that would guarantee no dead pixels. I think you should probably be pretty satisfied if you get no dead pixels on delivery, forget about the 2-3 year warranty. No one wants that kind of commitment hanging over them, besides unless you've done something crazy like opened up your projector and poked at the panels they should not subsequently develop dead pixels. Unless someone has had this happen to them?

Regards,

Kam Fung
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post #8 of 11 Old 04-16-2001, 06:58 PM
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I suspect the Sony 10WVHT crowd is ready for an upgrade. Maybe a little rabid after their prior experience.

Also more than a few Sony dealers are probably ready to bad mouth the PLV-60 if it turns out to really have >600:1 contrast so they can unload their stock.

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post #9 of 11 Old 04-16-2001, 09:40 PM - Thread Starter
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Thanks for the reply John. I understand completely everyones desire to have all LCD projector MFG's. guarantee their panels for 2-3 years. I also understand the MFG's reluctance to guarantee 2.3million(1024x768x3) pixels for 2-3 years.

Since there are no signs that the MFG/end-user stalemate is going to be resolved anytime soon, and both DLP and LCD have benefits and shortcomings, were sort of left with the past performances of each individual MFG in regard to quality control.

Given that, who here has actually received a Sanyo XP18, XP21 or PLV-60 with dead pixels?

Mike
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post #10 of 11 Old 04-17-2001, 05:51 AM
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Quote:
<font face="Verdana, Arial" size="2">Originally posted by KFung:
I think most projector panels are pretty tough, if they come out of the box without any dead pixels they will usually stay that way for the life of the machine. Dead pixels are usually the results of a manfacturing defect, not normal wear and tear type damage (CRT burn-in/fading for example).</font>
This was my impression as well, before I woke up one day to notice my DILA had suddendly gloriously developed two stuck-on pixels! Projector lamp was at 150hrs when this happened. Sigh!

Luca
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post #11 of 11 Old 04-17-2001, 06:30 AM - Thread Starter
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24 hours into the poll and still no dead pixels found on any of the current Sanyo Projectors.

I know there were at least 2 dozen XP21's sold to members over the last month. I'm sure everyone would apprecitae any feedback those buyers can give.

Mike
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