3M 900AST manual Care and Maintenance, Restoring the Aircraft After Testing/ Troubleshooting

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3M™ Advanced Systems Tester 900AST Series

In this case the low impedance anomaly at 24 inches is detected but not classified. The Auto TDR

displays ‘????’ below the trace.

Restoring the Aircraft After Testing/ Troubleshooting

Disconnect the 900AST TDR test cable from the aircraft wiring. Also, remove any adapters (if used). Ensure the other end of the coaxial cable is reconnected. Reinstall the line replaceable unit or component that was removed to accomplish testing or troubleshooting and perform all applicable maintenance manual procedures and operational checks.

Care and Maintenance

Please see the 900AST Series Instruction Manual for care and maintenance information.

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Contents Advanced Systems Tester 900AST Series Coaxial Wire Testing December 78-8135-6156-6-ASetup for Use Keypad Contrast and Backlighting Function KeysConnecting to Coaxial Wires for Testing CAUTIONTDR Setup TDR Test Modes Single TraceDual Trace MemoryPeak TDR Save for Coaxial Wiring Comparison Move CursorEvent Recognition Target Contact Open CircuitResistance Faults on Coaxial Cable Short CircuitBranch Circuit Soak TestAuto TDR for Coaxial Fault Detection Auto TDR Resistive Faults Auto TDR Trace Analysis Care and Maintenance Restoring the Aircraft After Testing/ TroubleshootingImportant Notice
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