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The Brain

An irrigation tech knowledge base, by BoardTronics.

Topics include troubleshooting, how-to's, and more!

ISSUE:

Receiver/Decoder Module not communicating with central computer

If the Receiver/Decoder Module in your Toro® E-Series OSMAC® cabinet is not communicating with your Central Computer, begin troubleshooting the issue by checking the condition of the Receiver/Decoder Module.

  • Check for corrosion on all connectors and pins on the Decoder Module.
  • Check all parts on the Receiver/Decoder Module to see if any are hot to the touch.

If the Receiver/Decoder Module exhibits either of the above issues, we recommend repairing it or replacing it with a new one. If the Receiver/Decoder Module is in good condition, check the communication between the Receiver/Decoder Module and the 8-Station Output Boards:

  • Switch the Receiver/Decoder Module to RESET mode via the onboard switch.
  • Power down the system, wait five seconds, then power up the system.
  • Wait another five seconds with the power on, then power down the system again.
  • Switch the Receiver/Decoder Module back to normal (NORM) mode and power up the system again. Check to see if the issue has been resolved.
  • If the issue persists, switch the Receiver/Decoder Module to TEST mode. Each station will come on and off rapidly. Check for lights on each of the 8-Station Output Boards.
  • If there is no activity on any of the 8-Station Output Boards, the Receiver/Decoder Module should be repaired or replaced with a new one.
  • If there is activity on one or more 8-Station Output Boards, any 8-Station Output Boards without activity should be repaired or replaced with a new one.