526 RBW (300 ADC timeout during IF ADJUST of <300 Hz resolution bandwidth.

527 RBW <300 Step gain correction failed for <300 Hz resolution bandwidth. Check narrow bandwidth SGO attenuator.

528 RBW <300 Calibration of dc level at ADC failed for <300 Hz resolution bandwidth.

529 RBW <300 Invalid demodulated data for <300 Hz resolution bandwidth flatness and IF down-converter. Demod data for calibration may be bad.

530 RBW <300 Adjustment of VCXO down-converter failed with resolution bandwidths less than 300 Hz. Narrow bandwidth VCXO calibration failed.

531 RBW X300 Flatness correction data for resolution bandwidths <300 Hz not acceptable.

532 RBW C300 Absolute gain data for resolution bandwidths <300 Hz not acceptable.

533 RBW <300 ADC timeout adjusting resolution bandwidths less than 300 Hz. Timeout during data sampling narrow bandwidth chunk.

534 RBW <300 Unable to do frequency count of CAL OSC using IF down-converter when adjusting resolution bandwidths less than 300 Hz.

535 RBW <300 Unable to obtain adequate FM demod range to measure 500 Hz IF filter with resolution bandwidths less than 300 Hz.

536 RBW <300 Unable to auto-range chirp signal while setting VCXO or doing flatness calibration with resolution bandwidths less than 300 Hz.

537 RBW <300 Unable to auto-range CW CAL OSC signal to count VCXO signal with resolution bandwidths less than 300 Hz.

538 RBW <300 Shape of 500 Hz IF filter appears too noisy to adjust VCXO down-converter for resolution bandwidths less than 300 Hz.

539 RBW x300 Unable to auto-range the CW CAL OSC signal to pretune the VCXO for resolution bandwidths less than 300 Hz.

540 RBW (300 Unable to find CW CAL OSC signal during VCXO pretune at power-up with resolution bandwidths less than 300 Hz.

550 ID CALOSC CAL Oscillator ID. Indicates incompatible hardware. Cal Osc not expected

551 ID LOGBD LOG Board ID. Indicates incompatible hardware. Log board not expected.

552 LOG AMPL Unable to adjust amplitude of log scale.

553 LOG AMPL Unable to adjust amplitude of log scale.

554 LOG AMPL Unable to adjust amplitude of log scale.

555 LOG AMPL Unable to adjust amplitude of log scale.

556 LOG AMPL Unable to adjust amplitude of log scale.

557 LOG AMPL Unable to adjust amplitude of log scale.

558 LOG AMPL Unable to adjust amplitude of log scale.

7-34 General Troubleshooting

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Agilent Technologies 856290216 service manual General Troubleshooting