Mitsubishi WD-65833: Reset system on my WD65833 after replacing the DMD chip. Now get a flashing code of 1-2. Any suggestions?

had white dots on mine as well i changed the dlp chip and put it back together and got the white vertical lines i decided to check all connections and make sure the chip was locked in correctly
it was not locked in securely i reassembled and now problem solved picture looks brand new so always check connections before assuming its the dmd board

Mitsubishi is replacing these DMD IC chips nationwide under an unannounced kind of recall for model #'s WD60C9, WD73733, WD57734, WDY657, WD73734, WD65735, WD60735, WD65C9, WD73840, WD65833, WD65733, WD73735, WD73833, WD57733, WD65734 and others. Call them @ 800-332-2119 and give them your model, serial # and date of purchase, tell them you have the white spots, they will set up a workorder with a local Mitsubishi servicer to come to your home and replace the DMD chip. Mitsubishi will supply the part (part # 276P595010) for free, but you must pay $200 in labor. BUT...if you ask for Shantell Hebert when you call Mitsubishi, and really push the issue, she will also pay half of the $200 labor fee, so you go from $400 to repair to only $100. Once that chip is replaced, the unit works great again!!

This is the DLP chip failing. Contact Mitsubishi and they will provide the part but you have to pay $200 for the service call.

I just had this happen to my wd-65833. It is a faulty dlp chip (they call it dmd board). I called Mitsubishi and they covered the cost of the part but there is a $200 service fee for the technician, no they will not send it to you. Support Service Mitsubishi TV

That is a replacement part that you should contact the manufacturer for.

Obtain a copy of the service manual and in it you will find the replacement part number of the DMD and how to purchase one. It is a very, application-specific component that you are likely to never find in any private seller listings.
A lot of DMD and optics engines were made and patented by Texas Instruments for many TV's.

Here is a link to get you started. http://www.dlp.com/hdtv/dlp-mitsubishi-hdtv/default.aspx

This unit uses a DLP (digital light processor) chip and if this starts to fail then you will get spots appearing on the screen. The DLP chip will need to be replaced.

915P061010 part number for lamp, remove Philips head screw from lamp door in rear of set. YOU will find the lamp under door. Pull out, install new lamp, reinstall Phillips screw. Plug TV back in.
should do trick
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most likely a problem with the optical engine. that tv is a DLP and it uses a DMD device that is made by texas instruments that has millions of tiny mirrors on the face that move independantly and the white spots are going to be stuck mirrors that are not moving. suggest calling mitsubishi customer support for possible repair accomodation. that repair depending on the labor would be around $1500.00 total parts cost is around $1100.00. mitsubishi customer support 1-800-332-2119

Yes the Lamp can fail within that time frame. Much of it depends on how many hours the set is running. Most Lamps have a 3000 to 5000 hrs of life. But with any Halogen style Lamp, this is not written in stone.
Hope this helps,
Skyassoc

its an easy repair however i would recomend not even attempting the repair without the service manual as the DLP chassis is completely incased and you will need the info just to get the chassis out , That will explain exactly how to disassemble. once disassembled there are 4 100uf capacitors that are causing the problem. If you would like the full service manual for your set let me know and I will post a link where you can get it emailed and they will provide free support to help you do the repair.