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Troubleshooting AMX

Error Number
mAs calibration error
Error Code / System Message
MAS CAL ERROR 1 / 4
Error Question
How does AMX-Series mAs calibration work?
Short Answer
The system injects a known current into the mA measuring circuit and compares counted pulses to expected mAs response.
Possible Causes
mAs VCO/counter/calibration fault.
Troubleshooting Steps
Verify the calibration source/current, mA measuring circuit, VCO/counter response and CPU data before repeating calibration.
Parts Areas to Check
mA measurement circuit; VCO; CPU counter
For Related Models
AMX-4, AMX-4+, Definium AMX 700
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