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DLP-ALC-LIGHTCRAFTER-SDK:

Anna Kennedy
Prodigy 10 points
Part Number: DLP-ALC-LIGHTCRAFTER-SDK
Other Parts Discussed in Thread: DLP2010

Tool/software:

I’m reaching out for assistance with a DLP LightCrafter Display 2010 unit that we’ve been using in our lab. It was functioning correctly a few months ago, but unfortunately, it now fails to power on entirely.

We’ve verified the power supply and connections, but the unit shows no signs of life – no ‘on’ LED comes on when plugged in. We're wondering if there are any additional troubleshooting steps or recovery options we could try before assuming the device is no longer usable.

  • 0
    TI__Genius 11800 points

    Hello Anna,

    Please advise what has changed between when it was functioning correctly and now.

    Has this unit been reprogrammed at all?

    Best,

    Aaron

  • 0 in reply to Aaron Black
    Prodigy 10 points

    Hi Aaron,

    This is an older projector that hasn’t been in use recently, as we’ve been focused on preparing other aspects of the experiments it would be used for. That said, I did test it a few months ago and it was working perfectly at the time.

    Unfortunately, I can’t pinpoint any changes between then and now as nothing has been modified or reprogrammed on the unit. It’s possible that it may have been exposed to an incorrect voltage at some point, but to my knowledge, it hasn’t been plugged in or powered during this interim period.

    Thanks,
    Anna

  • 0 in reply to Anna Kennedy
    TI__Expert 6670 points

    Hi Anna,

    I will assign this ticket to another one of our experts for the DLP2010 chipset.

    From a hardware perspective, I do have some questions if you can help us check these?
    Please refer to the User's Guide for this projection evaluation module (EVM) to help answer these questions.

    1. Please bear with me, but what power supply are you using? Does it supply the correct voltage with enough current (I.e., is power requirement met)? Is there any voltage droop on power up from inrush current that can be causing this to brownout or shutdown?
    2. What power supply are you using? DC power supply, AC adapter? Something else?
    3. What about probing the input interface with either an oscilloscope or a voltmeter/multimeter? Do we see an input voltage from the connector to any other ICs such as voltage translators or the powergood indicator LEDs?
    4. If there is a power up sequence in one of the datasheets, does the power up sequence you see on a scope match well?

    I will let our expert take over from here, and hopefully one of my questions is applicable. Thanks!!

    Regards,
    Michael Ly

  • 0 in reply to Michael Ly
    TI__Expert 7105 points

    Hello Anna, 

    Please verify the following power up sequence is seen properly:

    If this is correct you may try the boot diagnostic firmware found here: www.ti.com/.../1.0.0

    Best,

    Max