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LCD Screen is Unreadable on ZonePRO Units

Written by Will Fraser

Updated at December 29th, 2025

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Question:   Answer:

Question:  

Why is my ZonePRO screen either blank or too dark to read?​


Answer:

Sometimes the contrast may have been set incorrectly, making the screen unreadable.  This may or may not resolve your screen display.

Reboot the ZonePRO.  Before touching any controls, push IN on the Utility wheel until it clicks.  This will enable Contrast Adjustment Mode.  Turn the Utility wheel until the screen is most readable, then push in on the wheel to accept changes.

If this doesn't fix the issue and the screen is still unreadable, the ZonePRO will need to be repaired

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Related Articles

  • Adjusting the Screen Contrast on the ZonePro
  • Connecting Directly to the ZonePro using Ethernet
  • Factory Default IP Settings on the ZonePro
  • Factory Default Serial Port Settings on the ZonePro
  • ZonePro - How to Connect over RS232 (Serial)

Related Articles

  • Adjusting the Screen Contrast on the ZonePro
  • Connecting Directly to the ZonePro using Ethernet
  • Factory Default IP Settings on the ZonePro
  • Factory Default Serial Port Settings on the ZonePro
  • ZonePro - How to Connect over RS232 (Serial)
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