Official Mitsubishi WD XX833 Owners Thread - Page 115

My lesson is to not buy a TV with moving parts any more. My flat TVs have been more reliable.

Just order the DLP chip. It will fix the white dot issue you are having and will take less than 20 mins to replace.

Warranty Service is stating that the chip is on back order from Mitsubishi and they don't know when it will be available. I have to wait 60 days before they will give me an alternate option.

Dots are getting worse, some are now black.

I'm a novice working on TVs and am having "white and black dots" problem on my Mits WD-65833. After taking of the back cover. What are the steps in replacing the DLP chip? Is it easy to get at and pop out and replace? Thanks in advance for any help.

Well one more week and I am going into the second option for my TV as the part is still on back order and has been for the past 53 days, the TV is getting to the point that it will be unwatchable.

Has anyone gone through this with service net and if so will they replace my tv with something similar? Is there a tv out thier that any of you could recommend? I can't see going smaller then the 73" as this is what I have now. 70" would work I guess though.

Any thoughts would be great! Thank you!

And just to add, I love the non-reflective screen that the 73833 has and wouldn't want to go with a replacement that didn't have the same property's as that. I have read that the new 840 series is really bad in direct light, is the 740's the same?

Best Buy EW was 30 days waiting for the part. They got it in time :-( I've got one more strike for a lemon, by October. So far it's working. :-(
Too damn common an issue. I find the screen reflective if not as bad as some still reflective. I have windows to the left of the screen. They are covered but not blacked out.
Good luck.

My 73833 works perfect in a lighted room, and if I have to replace it I would want the same type of screen.

Thanks for the reply.

Just wanted to update: I was just told by Service Net that the light engine for my Wd73833 is no longer available so they offered me a new WD73838 model to replace it.

Very happy as long as the screen has the same non-glare capability!

Enjoy your new set. Now go get an EW, you know it's going to fail!

I have a Mitsubishi WD-73833 that developed the dreaded white dot issue in the last month. I had a Mits authorized tech replace the DLP chip in the light engine. The good news is the white dots are gone. The bad news is I now see 6 tennis ball size white circles when picture is completely black. This problem was NOT there before the chip was replaced. Of course I didn't notice this issue when the tech completed the job. Anybody else ever have this issue and if so what was the issue.

Just replaced my DLP Chip. Had a few dots appear one day about a month ago. It had progressed to a star field. Ordered the DLP chip, it arrived this AM and I installed in about 20 minutes. Fairly straight forward, although people should be aware to check the thermal paste on the heat sink. If it doesn't come off clean, you should replace with fresh paste. The replaced chip solved the white/black spot problem.

Regarding the spots the above poster is seeing, could be dust that was moved around while the DLP chip was being replaced. Can the light engine be cleaned?

I have a WD-73833 and just recently had the DLP chip and mother board replaced under the extended warranty. Now I am noticing faint blotches on the screen. I only notice them when the I turn off the tv. It is when the screen is black and the tv is still shutting down. I have looked closely and cannot seem to notice them when there is a picture on the screen or when I have a blue screen. Any ideas what this means and will it lead to future problems? I still have about a year left on my warranty.

3D Question:

I just received my 3D glasses, emitter and adapter for my 73833. I'm using TrueDepth3D glasses. Really happy with the glasses, they're "real" glasses, not the postage stamp box sized glasses. I've watched pieces of of a few movies and documentary content both animated and live action. VERY happy with the 3D quality, MUCH better than any 3D I've seen in the theater. I was a little disappointed at first when I put the TV in 3D mode at how washed out the picture was, but with the glasses on, the picture isn't washed out at all. I figure it's the DLP link signal that I'm seeing without the glasses.

The only artifacts that I've noticed so far is very slight strobing of the blacks in very dark scenes. Most every scene looks great, even shadows, but a night scene with large areas of black seems to have this strobing, almost flicker. Very faint- almost like crosstalk or something with the dip link signal. The glasses I'm using aren't DLP link- I'm wondering if anyone has seen this and if getting DLP link glasses will fix this issue.

Are there any HDTV's that use firewire recording anymore? I have a couple firewire DVRs that I use with my 65833 and the RCA set before that. I figure someday the Mits will follow in it's death and really like the DVR recorders. Thanks, Bear

Hi everybody,

I have 73833 with firmware 9.01 which was manufactured in May 2008 and I bought it in August 2008. I am trying to update to 9.03 and it is not working. I downloaded firmware in zip file and instructions in PDF file from official Mitsubishi page here: http://support.mitsubishi-tv.com/documents/WD-73833

This is what happening when I follow instructions:

TV is unplugged from wall socket.
I plug USB flash drive into USB port in the front panel.
Then I plug power cord into wall socket.
According to instructions I have to press Power button to start updating firmware but Timer green LED light starts blinking fast immediately for about a minute then stops and nothing happens and TV doesn’t come on.

Any suggestion appreciated.

Happy New Year!
_ _ _ _ _
UPDATE
I called Mitsubishi and they said they would send me USB flash drive with firmware and instructions.

The repairman said my white dots were the worst he had ever seen. I got a new Philips lamp and a new DLP chip and the pic is now awesome. The set is dialed in with Calman software and a $1K Video EQ Pro equalizer. I had looked at the top rated Elite 70" and Panasonic 65VT30. While the black level on those two is slightly superior, the calibrated image on the 73833 with a gamma of 2.3 is very close and 73" to boot. I will keep it at least another year.

rrussel, how is that geometry for ya? I have a 73833, 73835, and a 73740

I think 73" is a great size. I will be parting with the 73833 soon though.

A bargain too, with new bulb at $800 bucks. I recently dissasembled the 835 Light engine and gave it a spring cleaning. Fun if you have abou 3 hours or so.

Love those diamonds. I will just wait and wait and wait some more for LED to become a bargain. DLP is fantastic, and if you know just a little about computer repairs they are very simple beasts to work on it turns out. The amounts of dust on these things is uncanning after just 2 years. We have two dogs, Its set in an nice wall unit and is about 14 inches from the back wall. The wall is filled with dust too. No carpet in the house. They are like dust magnets. I have replaced the dmd board on the 833. I assume the 835 will follow at some point. Can you believe one bulb in almost 4.5 years on the 833. It for xbox , ps3 stuff in the man room. I think we have been through three on the 835. Loving the 73740 so far. Didnt see the need for a sound bar. etc. With ADV1, 2 mode its a fantastic set up. and 3D is so rediculously better with the ability to turn off DLP link, not present on 833 and 835. Its very funny because if you turn "on" dlp link on the 738 , 740 series it looks just like the 833, 835, green tint and washed blacks. Wish mits would have gotten it right on the toggle for DLP link in those sets. Big FU in my opion for what it was. They knew DLPlink washed the screen out, why else put ir emitter on the dumb things. I miss the gloss black look though. Getting over it with the 3D goodness. Internet apps are retarded on the 740 though.

To think I paid 3599 from walts for my 73833 in 07.

The geometry on my 73833 is not perfect. However, after getting into the service menu and making some adjustments, the vertical sides on 4x3 material is acceptable. You don't notice the slight amount of bowing unless there are 4x3 sides on non HD material. Mine had a yellow brown tint that I could never completely eliminate even with calibration until I got the Video EQ Pro. With an accurate color gamut and gamma of around 2.3, the pic rivals that of my Panasonic VT25 plasma but does not quite equal it. From 15' back, however, the 73" makes up for it.

Just wanted to say that I just now replaced the original lamp in 65833. It didn't blow but I knew it had to be real dim just from the amount of use. Got a cheap lamp off of Amazon and it looks great. Man, I had forgot how bright it used to be. The original lamp had 11146 hours on it, according to the service menu. Good thing is that I still have it as a back-up just in case this cheap lamp blows out of the blue one day.

So my lamp finally gives out, 2 months after my BB warranty ended. What experiences d you have with buying lamps off of Amazon?

I see a lot of people talking about replacing the DLP chip in the xx833 tv's in order to fix the white dot issue. How much did it cost to have that chip replaced?

I'm having the same problem. I have a 65833 that now has quite a lot of white dots (and black dots too, when the screen is white), it looks like a galaxy of stars at night.

Anyway, my Wife and I have been going back and forth whether we should buy a whole new TV or try to repair the one we have. If we buy a whole new set, we are looking at spending about $2500 on a LED LCD (70") from Sharp.

But, now I'm starting to wonder if we should look at repairing the set we have. Or, would it be a good idea to try and sell this tv for parts or just sell it as a somewhat broken TV?

Our set has about 14,000 hours on it. It's on the 2nd bulb already and I would be replacing the bulb as well (super easy, I did this before for less than $100). I'm kind of afraid dropping a bunch more money into this TV at this point, just to have something else go wrong a few months down the line.

Really I have no clue where to get the DLP chip (isn't it really called the DMD chip?) and how much it would cost. The repair part seems fairly simple, I build computers all the time so dealing with that type of hardware isn't a concern for me.

Thank you!

Before you do anything, call Mitsubishi at 1-800-332-2119. They have been helping people with the "white dot issue". You may need to pay something, but if they help, I am sure it will be less than $2,000. If they help, you will need to use one of their authorized service companies but Mitsubsihi will be able to get the needed parts to that company. That is if this is one of those cases - Mitsubsihi seems to want a proper diagnosis for anything before they commit - they don't seem to simply take Internet Fourms diagnosis as a proper diagnosis.

Well, I have the 73833 that I bought in 2008. I replaced the lamp last year and last week 2 black dots appeared. As of right now, I have 9 black spots and 2 white spots!

I went to my local dealer where I bought the tv and told them what was going on. They told me to call Mitsubishi and tell them that I have the "white and black dot problem" and that Mitsubishi would probably provide the DMD chip for free and I would be responsible for labor.

I called and sure enough they are providing the DMD chip for free and I have to pay for labor. I wanted to do the repair myself as I am used to working on computers, appliances, etc. The repair shop is charging me $200 for something that takes 20 minutes to do.

They told me after the new chip is installed, the repair tech would have to go in the service menu and re align the picture and change a bunch of settings to get the picture to look right. They said the total repair will take 2+ hours to do.

My question is are they telling the truth or are they full of s*** and are trying to justify $200 for 20 minutes of work?

Doesn't really matter unless you are able to get the chip from a reliable source at a VERY discounted price. Mits will only honor the free parts if the dealer submits a warranty claim for the repair. $200 is the going rate as I had my 73833 fixed and a friend of mine has the same issue on his 65833. Although, in my case the white and black dot issue required a "new" (aka refurbished since they no longer make them for the 833) light engine.

I thought the dmd chip was the only cause of the dot problem? I hope a new chip will fix my problem. Don't feel like calling Mitsu. again and having to tell them the chip didn't fix the problem.

I posted earlier in the thread. I had the white and black dot problem and Best Buy, under the extended warranty did the repair. It was my second "Light Engine" replacement under the EW. So it was my second of three strikes. My EW ended in October and it's still going with no further issues. I was hoping it would fail with a third strike like the Sony this replaced under their EW.
The part looked fairly large with a dome on it. It was referred To as the light engine so I assume it also hosted the DLP chip. It was a simple replacement from the rear and looked like something I could do if the part was cheap enough. But as large LCDs and Plasmas drop n price, I would weigh the difference. I'm very adverse to repairing something that has failed numerous times.

I agree with the first part of this statement wrt housing the chip as well. As far as the replacment goes though, it's more than a couple minute job. I don't recall exactly but I did download the service manual and there's quite a bit of disassembly required. It's definitely not like dropping in a new lamp. FWIW, I consider my handyman skills to be average to below average. I build PC's when I need one and this seemed a little more involved. In any case, I wasn't going to save anything because the dealer was going to charge me for the parts and void the whopping 30 day warranty on labor if I did it myself.

It wasn't that long for the tech to replace the part. Remember this wasn't just the chip, the whole assembly came out and went in. Less than an hour in total visit time.
But, he know what he was doing, that helps with speed.