Daktronics

Time is slow or behind on Time & Temp display after having the display powered down or after a power outage

Potential Symptoms

  • Time is running slow, behind, or off on Time & Temp display after having the display powered down for a short amount of time or after a power outage.
  • After power outage for only a few hours, time is off and needs to be reset with the DM-100 handheld.

Environment

  • DataTime
  • DF-1010, DF-1011
  • Time & Temperature Display
  • Real Time Clock (RTC) is enabled (display powered off or power outage will enable RTC time keeping)

Cause

  • Onboard Real Time Clock (RTC) not keeping time on driver as well as it should be.  RTC circuitry on driver board is not working correctly.

Resolution

Note: There is some loss of time when using RTC mode.  The RTC option is more of a backup system and will not keep time as well as 60hz time keeping setup.

  1. For this issue it is recommended to update the Display using the DM-100 handheld. Follow How do I set the time on a Time & Temp display?
  2. When the display is powered up it will no longer use RTC and will go back to using 60Hz option for time keeping.
  • If there is a need for RTC mode to work more accurately:
    1. Replace the primary driver or swap the drivers in a 2V setup.
      1. Note: In a primary/secondary configuration, the primary side will re-drive its time and temp signal to the slave display. One can simply swap drivers with the secondary display to see if the issue resolves (make sure to move protocol plug as well).

KB ID: DD2098861

DISCLAIMER: Use of this content may void the equipment warranty, please read the disclaimer prior to performing any service of the equipment.

DAKTRONICS DOES NOT PROMISE THAT THE CONTENT PROVIDED HEREIN IS ERROR-FREE OR THAT ANY DEFECTS WILL BE CORRECTED, OR THAT YOUR USE OF THE CONTENT WILL PROVIDE SPECIFIC RESULTS. THE CONTENT IS DELIVERED ON AN "AS-IS" AND "AS-AVAILABLE" BASIS. ALL INFORMATION PROVIDED IN THIS ARTICLE IS SUBJECT TO CHANGE WITHOUT NOTICE. DAKTRONICS DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES OF ACCURACY, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. DAKTRONICS DISCLAIMS ANY AND ALL LIABILITY FOR THE ACTS, OMISSIONS AND CONDUCT OF YOU OR ANY THIRD PARTIES IN CONNECTION WITH OR RELATED TO YOUR USE OF THE CONTENT. ADJUSTMENT, REPAIR, OR SERVICE OF THE EQUIPMENT BY ANYONE OTHER THAN DAKTRONICS OR ITS AUTHORIZED REPAIR AGENTS MAY VOID THE EQUIPMENT WARRANTY. YOU ASSUME TOTAL RESPONSIBILITY FOR YOUR USE OF THE CONTENT AND ANY LINKED CONTENT. YOUR SOLE REMEDY AGAINST DAKTRONICS FOR DISSATISFACTION WITH THE CONTENT IS TO STOP USING THE CONTENT. THIS LIMITATION OF RELIEF IS A PART OF THE BARGAIN BETWEEN THE PARTIES.

The above disclaimer applies to any property damage, equipment failure, liability, infringement, or personal injury claim arising out of or in any way related to your use or application of the content, whether such claim is for breach of contract, tort, negligence or any other cause of action.