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Spare Part Instruction – SAILOR 100, 800 & 900A/B PMM
Document No.: 97-138940-D
Revision: D
The PMM has two LEDs for status and troubleshooting, should there be a fault with the antenna the
system will go into safe mode. The pedestal voltage will drop from 48VDC to 20VDC, causing the DDM
service LED’s to illuminate red to prevent the antenna from being able to drive. If this was caused by
a defective PMM its service LED would also be illuminated red. All power LED’s should remain green
providing they are receiving voltage.
Troubleshooting - Diagnostic LEDs on the ACU:
The ACU has 3 LEDs: Power, Logon and Fail/Pass.
Verify the status of the unit by referencing the LEDs. If any of the LEDs are not steady green or
flashing green then further diagnostics will need to be undertaken, referencing the below table:
If the Fail/Pass LED is illuminated any colour other than steady green then it means there is an issue
with the system. Log into the ACU using your web browser and refer to the systems event log as
detailed in the following sections of this document.
