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SN75DP130: Display Recognition Issue

Shinichi Yokota
Genius 9715 points
Part Number: SN75DP130


Hello,

I'd like to ask for help to solve an issue that one of two displays is occasionally not recognized by SN75DP130 when a system is turned on. Please take a look at the attached spreadsheet (description of the issue) for details.

Description of the issue.xlsx

Summary of The Issue

  • System: Intel-based motherboard + extender board + two displays
    • Two SN75DP130s are mounted on the extender board.
  • Only one of the SN75DP130s doesn't recognize a display occasionally when a system is turned on.
  • The issue comes with the extender board when the board is swapped.
    • It's suspected that the issue has something to do with the SN75DP130.
  • Frequency of occurrence of the issue is roughly a few percent, which is not so low.

I'd appreciate if you give me any hint or advice.

Best regards,
Shinichi Yokota