AMX Troubleshooting & Technical Support
Results Count
Error Number
Tube rotor issues
Error Code System Message
Question
How do I test tube rotor impedance on the Brivo XR285amx?
Short Answer
The Tube Rotor Impedance diagnostic measures the tube stator winding impedance.
Possible Causes
Open/shorted stator winding; tube rotation cable issue; rotor-board fault.
Troubleshooting Steps
Run Tube Rotor Impedance. If abnormal, inspect the rotation cable, then measure stator Common-to-Phase and Common-to-Auxiliary resistance and isolation at the tube side.
Parts Areas to Check
For Related Models
Brivo XR285amx
Error Number
Tube thermal-sensor fault
Error Code System Message
Question
How do I isolate a Brivo XR285amx tube thermal-sensor fault?
Short Answer
Measure the tube thermal switch/cable resistance; the manual specifies less than 2 ohms and uses repeat measurement at the tube to isolate cable versus tube.
Possible Causes
Open/high-resistance thermal switch or feedback cable; tube thermal protection.
Troubleshooting Steps
Disconnect the specified thermal cable and measure resistance. If above 2 ohms, measure directly at the tube with the feedback cable removed to isolate the tube from the cable.
Parts Areas to Check
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Brivo XR285amx
Error Number
Workflow issues
Error Code System Message
Question
What is the recommended troubleshooting workflow for the Brivo XR285amx?
Short Answer
Start by reviewing the error log, then ask the operator when and how the problem occurs, and finally run targeted SUIF diagnostics for the affected subsystem.
Possible Causes
System fault may be electrical, communication, drive, generator, or software related.
Troubleshooting Steps
Review the error log. Interview the operator for failure conditions. Open SUIF Diagnostics and run the appropriate System Power, System Control, Drive and Brakes, or Generator test.
Parts Areas to Check
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Brivo XR285amx
Error Number
kV measurement errors
Error Code System Message
Question
How do I troubleshoot Brivo XR285amx kV measurement errors?
Short Answer
Use KV Measurement/KV Test and verify the HV Tank-to-Power Module measurement cable and specified resistor values.
Possible Causes
Measurement cable or resistor issue; Power Module/HV Tank fault; DC bus/inverter issue.
Troubleshooting Steps
Reseat the J6-J7 measurement cable, run KV Measurement/KV Test, and if needed perform the resistance/cable checks before isolating the tank or power module.
Parts Areas to Check
For Related Models
Brivo XR285amx
Error Number
mA measurement errors
Error Code System Message
Question
How do I troubleshoot Brivo XR285amx mA measurement errors?
Short Answer
Use the mA Measurement diagnostic and verify the ribbon cable between HV Tank J6 and Power Module J7; the manual also gives resistance checks for the measurement network.
Possible Causes
Measurement cable fault; resistor network issue; HV tank or power-module measurement fault.
Troubleshooting Steps
Reseat the J6-J7 measurement cable and run mA Measurement. If it fails, perform continuity and resistance checks specified in the manual before replacing an FRU.
Parts Areas to Check