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Troubleshooting AMX
Error Number
Calibration checksum blocks application mode
Error Code / System Message
TEST 04 FAILED / CHECK SUM ERR x
Error Question
Can a calibration checksum failure prevent normal AMX-Series operation?
Short Answer
Yes. Calibration checksum errors can prevent entry into normal application mode until the calibration data or affected calibration is corrected.
Possible Causes
Corrupted or invalid calibration data; interrupted calibration.
Troubleshooting Steps
Identify the failing checksum. Enter service/calibration mode only as directed, repair the affected calibration, and rerun the relevant checksum/test before normal use.
Parts Areas to Check
Calibration data; CPU non-volatile memory
For Related Models
AMX-4, AMX-4+, Definium AMX 700
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