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DLPLCR6500EVM: 6500 EVM not activating/turning on

Theodore DuBose
Prodigy 80 points

Part Number: DLPLCR6500EVM

Hello,

I am attempting to run the DLP Lightcrafter 6500 EVM. I have plugged it in to the correct +12 V DC power supply. I have also verified that power is reaching the device by using a multimeter; the soldered pins for the power input also show +12 V DC.

However, the DLP does not activate or run the sequence of patterns as shown in the included manual. Additionally, when running the DLP GUI over USB, the software cannot identify or contact the DLP.

Is there a way to fix this, or a possibility I am doing something wrong?

  • 0
    TI__Mastermind 20045 points
    Hello Theodore and welcome to the E2E forums.

    Before we dive further into troubleshooting, can you verify what the max current output of your power supply is? While the typical EVM current is 5A, the maximum is 7A. It could be possible the board is not even starting up if the power supply can't source enough current.
  • 0 in reply to Kyle Rakos
    Prodigy 80 points

    The current output of my power supply is 5A. The power supply  is the Artesyn DPS53, which is the TI-recommended power supply for the 6500 EVM.

  • 0 in reply to Theodore DuBose
    Prodigy 80 points

    Kyle,

    I spoke yesterday with tech support at Mouser, from whom I bought the EVM. They said that I need to work with you to generate a TI FA Form; how do I go about doing that?

  • 0 in reply to Theodore DuBose
    TI__Guru 54705 points

    Theodore,

    I will be picking this up.  I will be working with you on this.  They want TI to verify that it needs replacement and is not some simple issue.

    Are you able to get a screenshot of the GUI page after you have physically connected the kit and turned it on?  If so, please insert that into your supply.  

    Also, do you see any changes at all on the DMD when you plug in a video source (i.e. HDMI to your laptop or desktop)?

    Fizix

  • 0 in reply to Fizix
    Prodigy 80 points

    Thanks, Fizix. I have attached a screenshot of the GUI after opening, connecting, and hitting the 'Normal' radio button.

    I see no changes on the DMD when I plug in HDMI, DisplayPort, or USB.

  • 0 in reply to Theodore DuBose
    TI__Guru 54705 points
    Hello Theodore,

    Thank you for the screenshot. Clearly the GUI is not seeing the Board. You have verified that the voltage is getting to the board.

    Do you have anything elso other than USB and power connected (i.e. trigger cable, HDMI, DisplayPort, etc . . . )? If so disconnect and re-try.

    Also, do you have a way to connect power through an ammeter to see how much current is being drawn, or a scope to watch the power supply voltage at the board connector during power on?

    Fizix
  • 0 in reply to Fizix
    Prodigy 80 points

    That screenshot is with only USB and power plugged in.

    There is not a convenient way to measure current,  but I will try to improvise something.

  • 0 in reply to Fizix
    Prodigy 80 points
    I managed to insert an ammeter into the power supply route, while simultaneously verifying 12 v DC input. 0 A current draw was observed for both AC and DC settings.
  • 0 in reply to Theodore DuBose
    TI__Guru 54705 points

    Theodore,

    Referring to the image below, using your meter, please verify that there is 12 Volts (relative to ground) on both sides of F2 (main fuse on controller board - cyan rectangle) and that D8 LED (yellow rectangle) is lit.

    Then verify that there is 12 Volts on both sides of FB20 (red rectangle).  

    NOTE:  D7 (magenta rectangle) provides a good ground and a point connected to the downstream side of F2 and the upstream side FB20.

    Here is the input power section of the schematic (pg 15) for reference:

    Here is a photograph with different components mentioned highlighted by rectangles.

    Please report the results.

  • 0 in reply to Fizix
    Prodigy 80 points

    I have completed the tests.

    F2 has 12 volts upstream and 0 volts downstream—this may be the root of the problem, if the fuse is inoperable.

    D8 is not lighting, and has 0 V on both sides.

    0V on both sides of FB20.

  • 0 in reply to Theodore DuBose
    TI__Guru 54705 points

    Theodore,

    THANKS!  Yes the fuse is blown.  

    Did the unit ever power up?  

    • If it did, then do you remember any event that might have popped the fuse?
    • If it did not, then you should RMA it to Mouser.  Just copy this post to them so they will start the request.

    They will generate the request to TI for our approval.

    Fizix

  • 0 in reply to Fizix
    Prodigy 80 points
    The unit did not never power up; thanks for your help. I have forwarded this to Mouser.