Blank display cabinets: HUB board failure

Potential Symptoms

  • Cabinets blank (could be non consecutive) on a Display
  • How to judge a HUB board failure for J and L series display

Environment

  • Product: NovaStar Sending Box / Receiver Cards
  • Component:
  • Control System: Market Standard, NPP Control using transmit common/open protocol.
  • This includes but not limited to DVN-4003, Dragon sticks, J Series, U Series, Q Series, JVX, QVN-1000, QVN-1001, and ZPN.

Cause

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

Hub board failure.jpg 

Resolution

Replace the Hub board. (attached to the receiver cards)

Hub board.jpg 

Note: Avoid exposing the contents of the power/signal box to moisture as the components are not sealed for water exposure. 

Related Resources

NovaStar: Blank cabinets of display; Receiver card failure

Blank cabinets of display-receiver card failure

Daktronics J Series Displays- J10 Replacing a Hub and Receiver Card

Daktronics L Series Displays- Removal and Installation of an L Series Receiver and Hub Card

DVN-4003: How do I replace a hub card?

KB ID: DD3345234


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