Keysight (Agilent HP) E5071A Repair Service

E5071A ENA Series Network Analyzer
Expert repair and calibration for your Agilent E5071A Network Analyzer. We specialize in obsolete, unsupported equipment. Free evaluations.
The E5071A network analyzer offers the highest RF performance and fastest speed in its class, with a wide frequency range and versatile functions. The E5071A is the ideal solution for manufacturing and R&D engineers evaluating RF components and circuits for frequency range up to 20 GHz. The E5071A has flexible configurations and you can select the number or ports, frequency and bias teas to fit your application. And the E5071A provides upgradability across all of the options at any time without changing serial number, for both software and hardware options. The E5071A network analyzer provides flexibility as you plan for future investments.
e5071a
Any failures or unforeseen issues identified during the calibration phase will be detailed in an estimate submitted for your approval prior to any further action. Repair charges are determined by the actual time and materials required. Please be aware that customers are responsible for all associated shipping costs, to and from our location. This initial estimate is provided free of charge.
E5071A Specifications – click to expand

E5071A Specifications

  • ENA-series vector network analyzer
  • Windows-based with color display, LAN, USB and GPIB interfaces
E5071A Options – click to expand

E5071A Options

  • 213/214, 2-Port. 313/314, 3-Port. 413/414, 4-Port (xx4 adds bias tees)
  • 008, Frequency Offset
  • 1E5, High-Stability Frequency Reference
Agilent / HP E5071A Error Codes – click to expand

Agilent E5071A Error Messages

This E5071A list covers the on-screen errors that matter for repair and the board each one leads to. Errors show on a red bar at the lower left; numbered ones can be read over GPIB.

E5071A notes

  • The E5071A runs a power-on self test at every start; a failure is reported as error 241 and broken down by the internal test in the service menu.
  • If the rear fan does not run, the A50 power supply is suspect; check the +3.3 V / +5 V monitor LEDs on the A21 board.

E5071A hardware errors

ErrorMessageMeaning
220Phase lock loop unlockedA synthesizer PLL lost lock during measurement. The service manual points to the A1 source board (small chance: the ADC section of the A2 receiver).
241Power on test failedThe power-on self test found a hardware fault. Run the internal test from the service menu; the first failed test identifies the board (A1 source, A2 receiver (A14 RF / A17 IF boards), A3 level vernier, A4 power amp, A6 switch/temperature control, A7 attenuator).
240Calibration data lostThe system calibration file is missing or damaged at startup. The analyzer needs its adjustment data restored or regenerated.
221Port 1 receiver overloadToo much power into port 1. If it appears with nothing connected, the analyzer is faulty.
222Port 2 receiver overloadSame as 221 for port 2.
223Port 3 receiver overload3- and 4-port options only.
224Port 4 receiver overload4-port options only.
—Fatal Error: Failed to Initialize DSP / DSP DriverThe A21 analog interface board or A20 digital motherboard did not start. Also shown after a failed firmware update.
—Fatal Error: Failed to Update DSP CodeWriting DSP firmware to flash on the A21 analog interface board failed; reinstall firmware, then suspect A21 analog interface board or A20.

E5071A calibration, file and setup errors

ErrorMessage
20Additional standard needed
22Calibration method not selected
30Valid ECal module not found
31Failed to configure ECal module
41Peak not found
53Log sweep requires 2 octave minimum span
100Failed to read file
101Failed to write file
105Recall failed
106Save failed
120Printer error
200Option not installed

SCPI error ranges

RangeClass
−100 to −199Command errors
−200 to −299Execution errors
−300 to −399Device-specific errors
−400 to −499Query errors

Hardware error on your E5071A? Analyzer Repair Inc. repairs and calibrates the Agilent E5071A in-house in Cocoa, Florida. Free estimate once the unit is in our lab. Contact us for service.

Based on the Agilent E5070A/E5071A ENA Service Manual (E5070-90110).

Agilent / HP E5071A Replaceable Parts – click to expand

Agilent E5071A Replaceable Assemblies and Part Numbers

Board and RF module part numbers for the Agilent E5071A; exchange numbers are factory-rebuilt units.

ReferenceAssemblyAgilent part numberNotes
A1Source boardE5071-66551Exchange E5071-69551
A7Source step attenuator33321-60059Options 214, 314, 414
A8RF switch, SPDT5087-7137Options 31x, 41x
A14Receiver RF boardE5071-61014Exchange E5071-69014
A17Receiver IF boardE5071-66517
A5Crystal oven (high stability reference)E4991-66505Option 1E5
A6Switch control boardE5070-66586
A20Digital motherboardE5070-61030
A21Interface boardE5070-66521
A22Front panel keyboardE5070-66522
A23Handler I/O boardE5070-66523
A26LCD interface card54810-66525
A27Hard disk driveE5070-65030
A28Floppy disk drive0950-3334
A50ATX power supply0950-3961
A52Inverter0950-4091
—Analog motherboardE5070-66510
—LCD assemblyE5070-60101Touch-panel LCD E5070-60102 with Option 016

Part obsolete? Many E5071A assemblies are no longer sold new. Analyzer Repair Inc. repairs E5071A boards and RF modules at the component level in Cocoa, Florida. Free estimate once the unit is in our lab. Contact us for service.

From the Agilent E5070A/E5071A ENA Service Manual (E5070-90110).

Located in: Network Analyzers