Toshiba 50HM66, 56HM66 Discussion - Page 6

I know some people have asked about accessing the service menu to get the lamp hours on the 50HM66. Has anyone had any success? I've tried the code for the 2005 dlp models, but I haven't gotten it to work on my 50HM66. Anyone know the correct code for the 2006 models to access the lamp hours?

Thanks!

I sent confirmations of purchase 3 more times and on the cover letter, I listed my model number, serial number and phone number and asked them to call me.

I just received a phone call from them and they said they could not read the proof of purchase.
The good new was because I listed my phone number, serial number, he could look up my serial number and see that I qualified for a new lamp.
They are sending me one and I should receive it within 5 days.
Will report back later.
Mike

Hey all. Am interested in the 50HM66. Was almost gonna purchase one, when I saw a weird shadow on the top of the screen (elongated triangle). Thought to myself "Oh no, Toshiba has another problem". Then I thought "OK, maybe its just this store (Best Buy).
Looked in the next few days at other stores Ie Future Shop...and walla, same weird trinagular shadow at the top (this time covering only half the width.
Then reading other posts on the CanadaDigitalForum, others have noticed oit at different stores and evemn a post from back in Eastern Canada.
So have any of you seen this or know what it might be??? I really want to find out if it's a glitch in all these sets waiting to happen or a bad batch shipped to best Buy and Future Shop. It's a great looking set, but I don't wanna drop 2K on something that is faulty.

What you are looking at is the source feeding the television. Hope this helps.

Don't think it was the source, because they feed all the TVs the same source. They also shut down the 50HM66 and admitted there was a problem and a Toshiba tech was coming in to see it. I asked them why I have seen it on the same TV at other locations...they didn't have an answer.
It's not the bulb for sure. Could it be the chip? Colour wheel out of allign?
Again, it a dark gray triangular shdow, at the top of these sets. Some all the way across the top, others, just half way.
Any techs out there have an opinion?????

Anyone out there own one of these or seen one? All information is apprecia ted.

That is bull. It is absolutely not the source. All the other TV's at the store were ok. The particular 50HM66 in question was ok up to about a week ago but is now always showing the triangle shadow after being about 6 weeks old.

Toshiba better get off their behinds and identify what this problem. Anyone buying one of these units is NUTS until this defect which renders the set completely useless in my opinion is identified and corrected.

I would tend to agree it's not the lamp however I would not completely eliminate the possiblity. In these units it's not a point of light that is used, it is an envelope of light. As a bulb goes through it's service life this enevlope of light will change and possibly shrink. I did read an article months ago relating to the HD5 chip used in this TV that it might be more sensitive to changes in the light enevlope for some reason that I don't recall.

I suspect the real reason is some piece of plastic in the light engine has heated and warped partially blocking the light envelope to the HD5 chip thus causing the dark triangle. If this specualtion was true then we could be looking at a defective light engine physical skeleton. That would prolly mean Toshiba would have to replace the light engine on this units.

I hope they say something soon, luckily for me I dithered long enough that this KILLER problem showed up before they got my money.

so here is 3rd

4th

5th (next sb ok...)

OK, try this link...

http://community.webshots.com/myphotos?action=viewAllPhotos&albumID=552460958&security=eeWxXx[/url]

The shadow was only about half way across the top of this display set, although I have seen it all the way across. You can def see some colour on the bottom edge of the shadow.
Now that you can see the actual flaw...any ideas???
I have seen this on at least 5 50 HM66's at 5 different stores...

That would certainly be a deal-breaker. Is it intermittent or constant?

I hooked up a 56hm66 for my parents 4 days ago and have not noticed this phenomenon. But you can bet it'll go back if it does show up. So far, so good, though.

I want to be able to find out what this problem is. It seems to be showing up after a couple months at the stores. Albeit they are on 12 hrs a day. Reguardless, this shouldn't be happening. And its not 1 TV. I have seen it at 5 different stores.
Maybe should forward the pics to toshiba???

[quote=120inna55]That would certainly be a deal-breaker. Is it intermittent or constant?

It's contant, always there. On some display models i Have seen it all the way across the top, starting from 1" on the left side and finsihing 4" down from the top on the right side.
Seems to always start from the left.

Yep.

120, any ideas what would cause this???

Beats me. But bobancle, back in post #158, seems to have a good theory:

I've had mine since April and don't have it - fingers crossed.

Well I've just noticed a thin triangle along the right side of the screen that comes in 1" from the side. Returning it tomorrow..

That is the same shadow I am seeing. It seems to take some usage before this shows up, like a month or two at the store. It might not show up before your return period (like 30 days) so you would looking prolly to have it fixed under the Toshiba warranty.

It would be interesting to pop the front screen off and inspect the lens for plastic bits, not sure if that would void your warranty or not. If it's just bit of plastic coming off the unit might still be ok once it's cleaned.

Is that a major undertaking? I do believe it is something blocking the light output and hope it isn't what you've mentioned before...

Well I found out it isn't that but what you mentioned earlier. When I turned it on this morning the thin triangle was gone. As the hours went by my wife noticed it growing into the picture again. I'm sure if I keep it on it will continue to grow & block more light at the edge of the screen.

Just to claify, is the "trinagular shadow" appearing on both the 50" and 56" units?

I've only seen it on the 50" however 56 inchers have only been on display a short time.

I've yet to see it on the 56" too.
Only on the 50" so far, and at many different locations.
I want to find out what is is, but I am leaning towards the new Samsung DLP now (well ne in Canada) 1080p LNS 5687W I think is the model #

It is showing up on my 56 inch as well. It goes straight across the top of the screen and is annoying the hell out of me.

That sucks! Get someone in to look at it and let us know what the problem is!!!

I got my Toshiba for the bedroom June 20 and so far no problems. The tv is used 4 to 5 hours a day during the week and turned on 4 to 5 times a days. On weekends a little more use.

From the post I don't think it a bulb problem itself but more like a manufacturing defect somewhere in the light engine or bulb housing.

Wonder if anybody was to get the bulb housing or light engine swapped out by looking on it would you be able to see the fault.

Here is a few pics of the tv.


World cup back in June.