This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DLPLCR6500EVM: Invalid Controller/DMD

Part Number: DLPLCR6500EVM

Hello,

I started working with a DLP LightCrafter 6500 module in both video and pattern mode but since yesterday it does not work anymore. 

Board: USB connection works, the heartbeat LED is blinking but it remains in standby mode and I get the error message "Invalid Controller/DMD" when I try to switch modes and the status "Controller/DMD incompatible" is ticked. (Image 1)

DMD: The overall pattern on the mirror is a very faint echo of the last pattern I used, but one side of the mirror seems to be in more or less random orientation and the other side is ordered. (Image 2) As a side note, while it was still working I had the impression that the mirror was quite hot to the touch, is that normal? Should it be actively cooled?

I tried:

1. Remove power and restart after a while

2. Resetting via software

3. Release and reinsert DMD as described in this forum article (https://e2e.ti.com/support/dlp/f/94/p/616210/2296999?tisearch=e2e-sitesearch&keymatch=dlplcr6500evm#2296999

I can exclude:

1. mechanical damage to the board (the DMD was in a holder) and after it stopped working I checked for damaged electronic components

2. Damage to the flex cable, the bend radius has definitely not been lower than 5cm

I there anything I can try additionally? 

I would appreciate any help how to solve this issue, thanks.

Klaus

Image 1

Image 2

  • Hello Klaus,

    First,  welcome to the DLP section of the TI-E2E forums.  We are glad you are here.

    Did you happen to handle the controller [edited] **DMD** board during operation or while powered up?  It is possible to damage the DMD if the wrong point on the DMD is touched when powered up. 

    The excessive heat is often a symptom of this,  Do you have only the one EVM?  Also when did you purchase the EVM?

    Replacing the DMD typically solves this issue.

    Fizix

    **EDITED on 9/20/2018**

  • Klaus,

    I inadvertently said controller board, but meant DMD board.