Dear TI support,
first of all, thank you for such active forum from which I can learn a lot. However, couldn't find the answer to my question here.
For my research we use two light weighted LED projectors (TDP-FF1A, Toshiba and SP-P410M, Samsung, pretty old ones). Both of the companies do not specify precisely the type of DMD chip they used. One says it is 0.6'' and the other 0.55''. Both have natural resolution of 800x600. For my research application, I need to know the original pixel sizes of both chips and their pixel pitches because I would like to compare the image they ganerate through identical optical path. Where can I find such an information? Can you help me and estimate based on your knowledge of types of DMDs you market or previously marketed, which kind of DMD they used for such projectors? It will be very helpfull.
Thank you in advance,
From a brief research I did on the net, here what I came with... (Keep in mind that I may be completely wrong)
Seems like the chip in both projectors is DLP5500
Go to toshiba.ca site, then click on "documentation" tab and open TDP-FF1A Specifications. Once opened,
look at the first line (diplay), it states 0.55'' DDR DMD, copy this line and open TI website, then paste in the
search, it will come with DLP5500. I hope that you can extract some useful information from this point.
Again, I'm not an expert in such stuff, and I may be deeply wrong, I just followed the logical chain of information
Igor and Inna,
The DMDs in these two projectors will not be DMD5500. The DLP5500 is a catalog device which you can purchase. It is not a chip used in the OEM projectors. The DLP5500 is XGA - 1024x768. The mirror pitch is 10.8 um.
In order to find out information about the DMD devices in the projectors you have, you will need to contact the manufacturers of the projectors (Toshiba and Samsung).
If someone else knows the specific DMDs for these projectors, they may chime in. I really have no way of knowing.
Thank you Igor and Pascal for the fast reply.
As you probably understand it won't be easy to get details from those manufacturers. I remember I tried once on other issue and I didn't get the answers I hoped to.
I will be happy to get more details from other people who are familier with those projectrors. I believe that there are probably not so many options, and those are old kind of DMDs that might be not manufactured any more.
What about a brute force and reverse engineering approach? Is it possible for you to open the
cover of one of these projectors, and then to disassemble several print boards (if it's needed
to be disassembled in a first place)?
I think you should be able to read the part number of several onboard ICs there.
May be the answer lies under the cover? :)
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