Are all DMD chips the same?

SOURCE: hi i have a samsung dlp 50'' recently it started

Spots are caused by Bad Light Engine/optical unit Assy block.
Samsung Parts.com 1-800-627-4368
PTS 1-800-844-7871

SOURCE: There are white spots on TV . Heard it can be the

There is a very easy way to decide if it is your Digital board or your light engine. When you turn off your TV and the logo come up, are the spots still there? If they are then your light engine is bad and needs to be replaced. If they go away, then your digital board needs to be replaced. And yes you can get that board from just about anywhere.

SOURCE: i have white spots and

This tv is it the DLP projection light engine block main board itself is the problems,not easily to go into the tv itself and replacing the IC chip itself.Must take out many mechanical parts to get u the Light engine block it self.U can replaced IC but somethime the IC chip it replaced,will not solved the problems,because the tv problems now the it is spreading and going on beyond the IC chip itself.If want to keep this tv very exspensive repair,i would reconmend hire a bound qualify tv tech replaced the whole Light projection block itself,but first call Mitsubishi for some kind of deal,they might help with the repair amount cost.

SOURCE: White spots on screen Need DMD

This is something of an urban myth....The "DMD chip" is actually the LCD display IC for the set; yes I have seen some listed on EBAY---still a myth----they are replaced (when a light engine is rebuilt in a space age lab or environment) under exacting conditions----if positioned a micron off in any direction picture will be tilted in some way---this is also not like changing spark plugs in a car, if you have a optical engine issue like spots etc, either get a rebuilt engine from Mitsubishi or buy a new set.

They usually require some parts for old engine (mounting brackets etc) be installed on new or rebuilt engine.

I did see the "chip" for another model listed on ebay today.(100.00 PLUS)

I understand the engine is expensive, I replaced a lot of them when the sets were in warranty---more Mitsubishi than any other brand with Samsung a distant second.

I am sure Mitsubishi does not offer the part for sale--they want to sell a tested rebuilt engine only.

I wish you luck but have little hope you will find a "part" other than the whole engine.


SD TECH

Mike LaPres

• 757 Answers
• Posted on Sep 04, 2011

SOURCE: I have a bad DMD

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