ESG Family Signal Generators

201 to 702: Device-Specific Errors

The firmware has changed the attenuator setting because, while in attenuator hold mode, a change in frequency setting has forced the ALC beyond its range.

Attenuator hold setting over range; Power set to lower limit.

The firmware has changed the power setting to a value other than the requested value due to the fact that, while in attenuator hold mode, the user has requested a power setting that is below the ALC range for the attenuator setting. The power has been set to the lower limit.

Attenuator hold setting over range; Power set to upper limit.

The firmware has changed the power setting to a value other than the requested value due to the fact that, while in attenuator hold mode, the user has requested a power setting that is above the ALC range for the attenuator setting.

508Frac-N Loop unlocked

The synthesizer is unlocked. Service may be needed.

Sampler Loop unlocked

The synthesizer is unlocked. Service may be needed.

YO Loop unlocked

The synthesizer is unlocked. Service may be needed.

509Output Section input overdrive

Internal error: report to factory.

510I/Q Modulator overdrive

Internal error: report to factory.

511Output unleveled

The instrument’s output is unleveled.

512Reference unlocked

The instrument’s reference is unlocked. If an external reference is connected, check the frequency and power. It is possible for this to occur during a poor connection/disconnection of an external reference. If this error reoccurs when no external reference is connected, the instrument may require service.

Error Messages

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Agilent Technologies E4400-90333 manual Synthesizer is unlocked. Service may be needed, Internal error report to factory