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I've never touched mine, as I don't know what the best coating or material to put on it would be. As near as I can tell from looking in the side window, it looks like a piece of plastic in angle shape, and would guess it gives the tv some support up top. I think all it would take is type of non reflective coating to fix the problem.
 

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Quote:
Originally Posted by Elvis Is Alive  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/930#post_23095229


No luck on the local shop for a 92". They still have a 82" 740 for $1899. I guess I will have to wait for someone to sell refurbs.

See my post, 3 posts above yours...
 

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Has anyone else actually received their TV from the Tigerdirect deal yet? They use a freight company called AIT Solutions and I'm curious if they seemed all right. My fiancee has to be the one accepting delivery and I've asked her to check for obvious holes or broken glass sounds, but she's not going to know enough to really scrutinize the TV (and there was no option for white glove delivery, just first threshhold). I'm just curious if they seemed fairly competent in anyone else's dealings so maybe they'll either avoid breaking it, or at least check it for damage before they deliver it to me.
 

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Quote:
Originally Posted by Agentbolt  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/920_40#post_23097960


Has anyone else actually received their TV from the Tigerdirect deal yet? They use a freight company called AIT Solutions and I'm curious if they seemed all right. My fiancee has to be the one accepting delivery and I've asked her to check for obvious holes or broken glass sounds, but she's not going to know enough to really scrutinize the TV (and there was no option for white glove delivery, just first threshhold). I'm just curious if they seemed fairly competent in anyone else's dealings so maybe they'll either avoid breaking it, or at least check it for damage before they deliver it to me.


I received mine a few days ago, was very pleased with their service. You will have to tip the guy if you want White Glove Service, which is removing the TV, assembling the stand if necessary, plugging it in to make sure it works and neatly stacking the cardboard materials. I live by myself so White Glove was a must for me. He also removed the existing TV to the outside of my garage for pickup. They can't haul away the old TV or cardboard boxes.


They are not required to do this, but I have never had one refuse me. I ended up tipping him $25 for his help. I thought he did a very good job.


With threshold delivery , he will just get your signature and leave you with an unopened box.
 

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Quote:
Originally Posted by rhulett  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/930#post_23093665


I've never touched mine, as I don't know what the best coating or material to put on it would be. As near as I can tell from looking in the side window, it looks like a piece of plastic in angle shape, and would guess it gives the tv some support up top. I think all it would take is type of non reflective coating to fix the problem.

Thanks - any suggestions on the type of coating? Is there just some kind of non reflective tape I can stick on it?
 

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Duvatine - a black, very light absorbent cloth, is the standard in pro video for blocking light
 

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Quote:
Originally Posted by Repdetect  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/930#post_23100951


Duvatine - a black, very light absorbent cloth, is the standard in pro video for blocking light

It worked great in my old RP HD crt set and in my old 2005 1080P DLP set. My calibrator put that stuff on just about every surface he could inside both of those RP sets.It cut down on the reflections and help improved the shadow detail by lowering the black level.


Although I would not feel comfortable putting the stuff on myself. I'm not going to be getting my RP sets opened up and modified now like I did back then.
 

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Quote:
Originally Posted by Repdetect  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/930#post_23100951


Duvatine - a black, very light absorbent cloth, is the standard in pro video for blocking light

Also flat non reflective black paint might be an option? I can't say that with any sort of certainty though since I've never seen the inside of any of these Mits DLP's that have come out in the last few years.


But who knows maybe it could work also.


I've used that stuff before in some of my older NON DLP RPTV's from years ago.
 

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I recently purchased the refurbished 73", has some issues.. the main problem that concerns me is a high pitched sound coming from the lamp area. Its not too loud but just loud enough to be annoying if tv is on mute. I have been muting the TV every now and then to check it and it seems like it gets a lot quieter after the TV has been on, should I be concerned or is it just normal? I have calibrated the TV with Disney WOW for the picture settings after getting 1 to 1 pixel mapping through the geometry settings and am really happy with the picture. BUt after it was done I noticed a small scratch on the screen on one spot and then a small indent from the inside of the screen a little bigger than a tip of pen (it looked like dust with the TV on inspecting it really close with the TV on and after turning it off it it looks like how plastic gets when it turns white and gets bent). Both are small and arent visible while watching TV, atleast yet now that I know they are there I think I will keep an eye out for that area. Does anyone know how Mitsu warranty's work for refurbs and are they pretty solid backing up their TV's if I need to make a claim?
 

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i have the 73842 model and mine makes the same noise. it sounds like the color wheel spinning to me because when the tv first turns on i can hear it spin up. it may be normal but im not sure. i cant hear mine over the tv. how many hours of use are on yours ? mine has just a little over 500 hours on it.
 

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i was wondering has anyone thought about adding some sort of dust filter to the two air intakes ? theres one on the back and one on the side, at least i think the one on the side is an intake since it feels like a little air is moving inward. do you think it would affect the bulb temp to much ? i mean as it sits now it just sucks it whatever comes by. its not like you can clean it out with compressed air like you can with a computer. theres bound to be something that wouldnt restrict airflow that much.
 

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I wouldn't do that.. The older models had filter covers around the Lamp and it would hamper venting and end up heating the lamp up shortening the life of your lamp. TV repair guys were removing the filters from the area to increase air flow.
 

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Quote:
Originally Posted by Phoeniix  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/930#post_23110503


I recently purchased the refurbished 73", has some issues.. the main problem that concerns me is a high pitched sound coming from the lamp area. Its not too loud but just loud enough to be annoying if tv is on mute. I have been muting the TV every now and then to check it and it seems like it gets a lot quieter after the TV has been on, should I be concerned or is it just normal? I have calibrated the TV with Disney WOW for the picture settings after getting 1 to 1 pixel mapping through the geometry settings and am really happy with the picture. BUt after it was done I noticed a small scratch on the screen on one spot and then a small indent from the inside of the screen a little bigger than a tip of pen (it looked like dust with the TV on inspecting it really close with the TV on and after turning it off it it looks like how plastic gets when it turns white and gets bent). Both are small and arent visible while watching TV, atleast yet now that I know they are there I think I will keep an eye out for that area. Does anyone know how Mitsu warranty's work for refurbs and are they pretty solid backing up their TV's if I need to make a claim?

Sounds like your TV already needs a new color wheel and possably a new DLP chip as that white spot may be that white dot issue with DLP sets.. Do a search on youtube for "DLP white dots" to see if that looks the same.


Might want to contact Mits and see what can be done about it now. Each part you would need would prob run you 150+. Theres plenty of videos on youtube showing how to replace the color wheel and DLP chip if needed out of warrenty.
 

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Does anyone know the protocol to control the 92742 via network, in the same manner the iphone app does? Im a systems integrator and would like to write a crestron driver to control this TV for a client. Ive had no luck retrieving it From MEVSA. And a very interesting email convo with them befor I got a canned corporate answer, which i can post if anyone is interested,


Brian
 

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Quote:
Originally Posted by darkeclypse  /t/1425134/2012-mitsubishi-3d-dlp-owners-thread-c12-642-742-842-series/930#post_23119241


I wouldn't do that.. The older models had filter covers around the Lamp and it would hamper venting and end up heating the lamp up shortening the life of your lamp. TV repair guys were removing the filters from the area to increase air flow.

i didnt mean a filter on the very back and all the way to the right side. i meant the intake vent in the center of the back and the other kinda oval vent on the side closest to the hdmi inputs.


i havent found anything yet but i came up with a simple way to test the strength of the airflow being pulled in. i took a piece of string from a spool of sewing needle string and i started from far away from the intake vent in the center/back and slowly moved it towards the vent until the flow was strong enough to actually pull the string flat against the vent.


if i do put something there it will be flat against the vent and i will repeat the string test. if its not able to pull the string flat against it anymore then ill try something else or forget it altogether i guess.


i would hope they sealed the tv in two halves so the dust cant get to the inner mirror/screen section but im guessing they didnt since i see there is a access hole on each side of the tv.


ive seen online how a dlp chip is replaced and the heatsink for the chip was chocked full of dust. i can see how that would lead to it overheating the chip.


i guess its a lose lose with these kinds of tvs. lol well since they wont be making them anymore ill try and make this one last but if it ends up needing to much maintenance/repair then i will have to start searching for another tv. dont mind replacing a bulb but i just hope it last a while. i have a Hitachi crt rear proj tv and its about 12 years old and still going strong but it lack hdmi of course and will only show a picture at 720p. something tells me this mitsubishi wont last 13 years. lol
 

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Could always just be anal about it and take the back bottom part off and give it a good clean like every 3 months or twice a year if needed. Keep that fan clean should help a lot.


I took the bottom back off my old 6 year old 61" Samsung DLP a month ago and gave it all a good vacuuming and took off the fan and clean it like new again. Then of course a week later I see videos on youtube showing taking the light engine apart and cleaning all the lenses and all.. haha.. Cant wait to do that to make the old TV look new once again.. I bet it could use a once over. And the color wheel sounds loud so I bet i'll be putting in a new one within a year on her. I'll enjoy it. That TV will get lots of use later on in the basement for the kids.


I'm sure the TV could last you 10 years if you wanted.. its just now adays the tech changes so quick that i'm sure there will be newer tvs you'll want in 5 years or so.
 
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