Mitsubishi DLP WD73833 - 3rd optical engine!

sheldon1451 · Post by **sheldon1451** » Mon Mar 17, 2008 9:42 am

That's great..hopefully that way, they'll be able to get around the call center in the philipines..

pamadeo2 · Post by **pamadeo2** » Fri Mar 28, 2008 8:12 am

Just wanted to give everyone an update, in case anyone has to go through the same issue....

It's great that Mitsubishi is taking a direct interest, but so far I haven't been really able to get anywhere. So far, I've talked to two different parties. The first one didn't do anything but tell me that the white spots are normal, and are present in all DLPs. What!?!? Why have any kind of advertising about your deep black levels if you're going to say a grid of white spots is normal to have. The best I got out of this contact was to get a 4th optical engine put in by the same local technician if the problem crops up again.

The second call seemed a little more concerned about the issue, and was actually interested in seeing the images of the spots. I guess they're under review, and I'll try calling them back later.

So, mixed feelings about Mitsubishi - again, it's great that they're taking a more active role, but I'm disappointed that they aren't more proactively resolving the issue. As of now, I'm in the same position as if I were to call the local tech to have the engine replaced every time they fail.

By the way, spots are developing with the 3rd engine, but I'll wait until they're more pronounced before taking pictures.

sheldon1451 · Post by **sheldon1451** » Fri Mar 28, 2008 8:20 am

Good luck

palmharbor · Post by **palmharbor** » Sat Mar 29, 2008 3:13 am

I worked for Texas Instruments promoting their DLP tech. I saw people come back and get new sets b/c of the extended warranty. One of the samsung units has LED light engine, no moving color wheel and 30K viewing hour life....no lamp to replace. This is the only DLP I would buy

jaws50 · Post by **jaws50** » Fri Oct 03, 2008 7:21 am

Went thru light engines on our 1st mits 73727 and experienced distorted pictures and the tv shutting itself down. It was replaced almost a year ago with a 73833. We had an early lamp issue that was resolved, but recently I've noticed when viewing darks there is a grainy,swirly thing ( excuse my non-technical terms) going on. Since this is not a constant thing and would be hard to recreate for repair, I have taped a movie so it can be seen. Does this sound like a light engine problem again or could it possibly be something else? I'm trying to prepare myself for the ordeal ahead. The difference between the 73727 and the 73833 is that the 73833 still has moments of greatness. Thanks again for all your helpful info.

Richard · Post by **Richard** » Sun Oct 05, 2008 9:33 am

I've noticed when viewing darks there is a grainy,swirly thing

Do you have this with all your sources? Is blu-ray one of your sources or is it just DVD? Have you done any calibration with a calibration disc to set your brightness and contrast?

jaws50 · Post by **jaws50** » Wed Jun 17, 2009 1:48 pm

Im sorry I didn't see your response sooner...since Oct. we have gone thru 4 refurbished light engines all with different issues. The 4th light engine has the same issue as the 1st(the darks are not right). The only device we are going thru is a cable box (HD/dvr)...have 1 component and 1 htmi h/u to see if that isolates the trouble. Is calibration something we can try or is that just a blu ray issue?

Richard · Post by **Richard** » Thu Jun 18, 2009 8:29 am

unknown... with out being there it is difficult to comment. It could be the nature of the product, a problem with the product, your TV service (does it happen with blu-ray or DVD?) or your HT system. Can you post that video to the internet and provide a link?

If there is a possibility of making a claim with Mits then you will have to hire a Mitsubishi Authorized Service Center to begin with.

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Mitsubishi DLP WD73833 - 3rd optical engine!

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