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1912C7037 Unknown Chip

Marius Hoffmann
Prodigy 15 points

Part Number: DLP

Tool/software:

Hi,

Can't  find the Chip inscribed with 1912C7037 on the TI website. We need them for a replacement in one of our setups. Is it possible that this is some TI internal Numbering?

thanks in advance.

  • 0
    TI__Expert 4860 points

    Hi Marius,

    Please send us an image of the front and the back of the chip, making sure all markings are clear and present.

    Thank you,
    Michael Ly

  • 0 in reply to Michael Ly
    Prodigy 15 points

    DMD FrontDMD backHi Michael,

    here are some pictures of the chips markings. Sorry for the back, there was thermal paste on, which I had to remove. On the side of the front, someone put glue at some point.

    Thanks for your help.

    Marius

  • 0 in reply to Marius Hoffmann
    TI__Expert 4860 points

    Marius,

    I've reached out to a colleague to help me with this. We will need more time to find out what this chip actually is. I'll get back to you when we find out.

    May I ask where you got this DMD or what the intended purpose for this is? The part number indicates this is probably some WXGA resolution part.

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    TI__Expert 4860 points

    Marius,

    On further inspection, we found that this chip can be replaced by the 1912C7137 0.67" WUXGA part.

    This looks like an OEM part number that is not sold to the publicly on TI.com. Did this come from a consumer projector? If so, you will need to contact the manufacturer of that projector.

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    Prodigy 15 points

    Hi Michael,

    it is from a big event projector. Is there a possibility to replace it with something publicly sold?

    The resolution should be WUXGA. Are these chips working the same way as the publicly sold chips? Does it help to sign an NDA for something like this?

    Thanks in advance.

    Marius

  • 0 in reply to Marius Hoffmann
    TI__Expert 4860 points

    Marius,

    I've actually dug into this a bit more with a couple other team members.  We don't want to jump to a quick conclusion on what exactly is a replacement for this custom OEM part and then be wrong about it.

    I would first contact the OEM of the big event projector you have and ask them what the replacement is.  There is a chance that they have previously talked to Texas Instruments about a replacement option and are already using it.

    If they no longer produce the projector, I would see if they use this DMD in any other projectors or if they have the replacement elsewhere.  They are more likely to have the TI contact(s)/mailing list for this replacement because they likely have email/paper trails.  I'm really sorry that I can't help any further.  I really do think this is the easiest path.

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    Prodigy 15 points

    Hi Michael,

    Thanks for your help. We're a repair company and have many devices, where the Manufacturer doesn't sell the spare part's for these devices anymore. I hoped to get new chips for these devices. Is there an NDA helping for something like this?

    Thanks for your help.

    Marius

  • 0 in reply to Marius Hoffmann
    TI__Expert 4860 points

    Hi Marius,

    Are you saying you contacted them directly? I'm sorry to hear that. Please give me a extra time to ask my colleagues if there is any such thing like this. In our past experience, we do not make custom one-off parts. I will check just in case there is any circumstance we do allow this, though.

    Regards,
    Michael Ly

  • 0 in reply to Marius Hoffmann
    TI__Expert 4860 points

    Hi again Marius,

    I was able to get feedback from my colleagues about this, and TI does not make custom chips in small volumes. The price that we have set up only works for a high-volume sale point, so we are unable to do anything such as an NDA for you to buy this chip.

    I'm very sorry there isn't much else we can do for you. Has the OEM officially said they will not sell you a chip for repair?
    I would ask again and get clarification from them.

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    Prodigy 15 points

    Hi Michael,

    It's with multiple Manufacturers, Like Barco, Christie, Hitachi. They say it's end of Service Life after 4 Years and want to sell a new Projector. I don't have any specific device at the moment.

    I thought to get an Info which Chip is replacable by an other Chip. And how the Chips are working in detail that we are able to check if they are working as intended.

    Thanks for your help.

    Marius

  • 0 in reply to Marius Hoffmann
    TI__Expert 4860 points

    Marius,

    I'm very sorry, but if the OEM is unable to provide you with this, TI does not have an equivalent available on our TI storefront.

    Marius Hoffmann said:
    They say it's end of Service Life after 4 Years

    The likely reason the OEMs say this is because TI is planning on discontinuing its Type A devices which have these specific pads.

    Here is an example of what TI sells on its public storefront. It is a DLP670S DMD, which has the same diagonal, but this is an S610 package that uses pins and not pads. You can see the mechanical section on Page 47 of the DLP670S Datasheet for mechanical information that shows these pins.

    Though results may vary, you may also check third parties online such as eBay for this part number. As always, exercise caution, but I'm very sorry about this. There is nothing else we can really do about this.

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    Prodigy 15 points

    Hi Michael,

    But this is not the same pin Layout. the Chip above has the Pins at 45° angle to each other and most of the chip's I've seen are in this strange layout. The Chips I get from ebay have most of the time the Problem that they don't work....

    Are all chips which are pin compatible also interchangable?

    Thanks for your help.

    Marius

  • 0 in reply to Marius Hoffmann
    TI__Expert 4860 points

    Marius,

    Marius Hoffmann said:

    Are all chips which are pin compatible also interchangable?

    Unfortunately, this is what I am trying to say. Not all DMDs with the same diagonal size have the same package type. The package type of your DMD differs from what is sold on TI's store. The DMD package type you show appears to be a Type A package, but what TI normally sells is the S610/S600 package for these 0.67" diagonals. In other words, TI normally sells these with pins and not pads (your DMD has pads).

    I understand that you would like to look for a ready-to-go solution that is available to everyone on the TI store, but we do not have any regular part that replaces this part.

    I'm sorry, but this really is something you should bring up to the OEM(s) in order to get a better answer. You might have to push them a bit and/or explain why you need this.

    In short,

    • This part you have shown has a different package type that uses pads instead of pins. TI does not have something off-the-shelf for this
    • This is a custom part that was sold at high volume to an OEM we have made an agreement to. The cost reflects the high volume, so low-volume sales cannot work, especially because we do not have an agreement in place. Making a low-volume sale would be very expensive on TI's behalf, and would greatly increase price for the customer. This would not be sustainable.
    • The OEM has the inventory for this part now, and it is up to them whether or not they resell. It may require some pushing to get this part.
    • If none of the OEMs work, please try to look on other sites for this being resold, but exercise caution

    Regards,
    Michael Ly