How to judge a HUB board failure for J and L series display?

Symptoms

  • Cabinets blank (could be non consecutive) on a J or L Series Display

Environment

  • NovaStar
  • Nova MCTRL660 sender box
  • MRV300Q
  • Gold Family Displays
    • J Series Display
    • L Series Display

Cause

  • If a Hub board fails, the cabinets related to it will be blank. 

Hub board failure.jpg 

Resolution

  1. Replace the Hub board.

 

Other

How to judge receiver card failure for J and L series display?

KB ID: DD3345234


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