Model Number Error (719)

If this error occurs, return the instrument to a service center for repair.

719 MODEL #?

Could not read ID string from EEROM A2U501.

System Errors (750 to 757)

 

 

These errors often require troubleshooting the A2 Controller and A3

 

 

Interface assemblies.

750

SYSTEM

Hardware/firmware interaction; check other errors.

751

SYSTEM

Hardware/firmware interaction; check other errors.

752

SYSTEM

Hardware/firmware interaction; check other errors.

753 SYSTEM

Hardware/firmware interaction; check other errors.

754

SYSTEM

Hardware/firmware interaction; check other errors.

755

SYSTEM

Hardware/firmware interaction; check other errors.

757

SYSTEM

BCD overflow.

Option Module Errors (800 to 899)

These error codes are reserved for option modules, such as the HP 85629 Test and Adjustment Module and the HP 85620A Mass Memory Module. Refer to the option module manual for a listing of error messages.

User-Generated Errors (902 to 904)

These error codes indicate user-generated errors.

900 TG UNLVL Tracking generator output is unleveled.

901 TGFrqLmt

Tracking generator output unleveled because START FREQ is set

 

below tracking generator frequency limit (300 kHz).

902 BAD NORM State of stored trace does not match the current state of the analyzer.

903 A > DLMT Unnormalized trace A is off-screen with trace math or normalization on.

904 B > DLMT Calibration trace (trace B) is off-screen with trace math or normalization on.

905 EXT REF Unable to lock Cal Oscillator when set to external frequency reference. Check that the external 10 MHz reference is within tolerance.

906 OVENCOL The OCXO oven is cold.

907 DO IF CAL Still performing IF Cals, or in need of IF Cals which were not yet done due to an OVENCOLD condition.

6-34 General Troubleshooting