Keysight (Agilent HP) 8593A Repair Service
Product model
8593A spectrum analyzer 9kHz-22GHzServices
Description
Repair prices
8593A Specifications – click to expand
8593A Specifications
Displayed average noise level:.
| Specification | Value |
|---|---|
| Frequency range | 9 kHz to 22 GHz, 26.5 GHz (Opt 026) |
| Span range | 0 Hz (zero span), [10 x N] kHz to 19.25 GHz |
| Span accuracy | Span 10 MHz: ±3% |
| Sweeptime Range | Span = 0 Hz or > 10 kHz: 20 ms to 100 s |
| Sweeptime Accuracy | 20 ms to 100 s: ±3% |
| Amplitude range | -114 to +30 dBm |
8593A Options – click to expand
8593A Options
- 004: Precision Frequency Reference
- 010: 50 ohm Built-in Tracking Generator
- 021: HP-IB Interface
- 023: RS-232 Interface
- 026: 26.5 GHz Frequency Extension
- 101: Fast Time Domain Sweeps
- 102: AM/FM Demodulator and TV Sync Trigger
- 103: Quasi-Peak Detector/AM-FM Demodulator
- 105: Time-gated Spectrum Analysis
HP 8593A Error Messages – click to expand
HP 8593A Error Messages
The HP 8593A spectrum analyzer (9 kHz to 22 GHz) shows text messages on screen when something is wrong. Each is marked (H) hardware, (U) user/setup, or (M) information.
First step: connect CAL OUT to the input and run CAL FREQ & AMPTD and CAL YTF, then press CAL STORE. A hardware (H) message that comes back after a good self-cal means the 8593A needs repair.
8593A notes
- The 8593A has a YIG-tuned filter; run CAL YTF after CAL FREQ & AMPTD with the 100 MHz comb output cabled to the input.
- The 8593A has counter-lock hardware for better frequency accuracy.
- SRQ numbers on the 8593A screen are service requests: SRQ 110 means hardware broken, SRQ 140 means an illegal command.
8593A hardware messages
| Message | Type | Meaning |
|---|---|---|
| FAIL: xxxx xxxxxxxxxx | H | A circuit fault was found during the power-up self-test. The 4-digit and 10-digit code identifies the failed circuit (see the service manual). |
| FREQ UNCAL | U/H | YTO tuning failure. Common when default correction factors are in use; run CAL FREQ. It also flashes briefly during CAL FREQ or when turning the knob, which is normal. |
| CAL SIGNAL NOT FOUND | U/H | The CAL OUT signal could not be found. Check the cable from CAL OUT to the input. If it is connected, enter the −37 Hz passcode (FREQUENCY, −37, Hz) before CAL FREQ or CAL FREQ & AMPTD. |
| CAL: GAIN FAIL | H | Signal level too low during CAL AMPTD. |
| CAL: SPAN SENS FAIL | H | The span sensitivity calibration failed. |
| CAL: FM SPAN SENS FAIL | H | Could not set the FM coil span sensitivity. |
| CAL: RES BW AMPL FAIL | H | The relative loss of a resolution bandwidth filter is wrong. |
| CAL: DATA NOT STORED CAL AMP NEEDED | U/H | Correction factors are corrupt and cannot be stored. Run CAL FREQ & AMPTD, then CAL STORE. |
| CAL: cannot execute CALAMP enter: 0 dB PREAMP GAIN | U/H | Set EXT PREAMP gain to 0 dB before running CAL AMPTD. |
| CONF TEST FAIL | H | The confidence test failed. |
| POS-PK FAIL | H | Positive-peak detector failed. |
| SAMPLE FAIL | H | Sample detector failed. |
| VID-BW FAIL | H | Video bandwidth check failed. |
| RES-BW NOISE FAIL | H | Noise floor too high at the bandwidth shown. |
| RES-BW SHAPE FAIL | H | A resolution bandwidth 3 dB width is out of specification. |
| STEP GAIN ATTEN FAIL | H | IF step gain failed. |
| COMB SIGNAL NOT FOUND | U/H | The 100 MHz comb signal was not found. Check that COMB OUT is cabled to the input. |
| CAL: LOST COMB SIGNAL | U/H | Comb signal too weak to finish CAL YTF. Use a short, low-loss SMA-to-Type-N cable from the comb output to the input. |
| ADC-GND FAIL | H | The processor board failed its analog-to-digital converter ground check. |
| ADC-TIME FAIL | H | The processor board failed its analog-to-digital converter timing check. |
| ADC-2V FAIL | H | The processor board failed its analog-to-digital converter 2 V reference check. |
8593A calibration, setup and information messages
| Message | Type | Meaning |
|---|---|---|
| CAL: USING DEFAULT DATA | M | Cal data is corrupt, so default correction factors are in use. An interrupted self-cal can cause this. |
| MEAS UNCAL | U | Sweep time, span and bandwidth settings make the measurement uncalibrated. |
| CAL: PASSCODE NEEDED | M | The function needs the service passcode (center frequency −37 Hz). |
| SRQ 110 | M | Hardware broken service request. Look for the hardware message shown with it. |
| SRQ 140 | M | Illegal command was received over the bus. |
| INVALID SYMTAB ENTRY: SYMTAB OVERFLOW | U | Too many user-defined items or downloadable programs in memory; delete some with DISPOSE USER MEM. It can also mean a failed processor board. |
8593A remote programming and memory card messages (U)
These come from bad remote commands, memory card problems or bus setup, not hardware: COMMAND ERROR, PARAMETER ERROR, INVALID ITEM, INVALID VALUE PARAMETER, INVALID ENTER FORMAT, INVALID OUTPUT FORMAT, INVALID BLOCK FORMAT: IF STATEMENT, INVALID COMPARE OPERATOR, INVALID REPEAT MEM OVFL, INVALID REPEAT NEST LEVEL, INVALID ACTDEF, INVALID VARDEF, INVALID KEYNAME, INVALID AUNITS, INVALID DETECTOR, INVALID TRIGGER MODE, INVALID TRACE, INVALID TRACE NAME, INVALID REGISTER NUMBER, INVALID SAVEREG, INVALID STORE DEST, INVALID CHECKSUM: USTATE, INVALID AMPCOR: FREQ, INVALID WINDOW TYPE, CONFLICT TABLE OVERFLOW, CAL: NO YTO AVAILABLE, SOFTKEY OVFL, UNDEF KEY, TABLE FULL, INVALID HP-IB ADDRESS/OPERATION, INVALID HP-IB OPERATION REN TRUE, INVALID RS-232 ADDRESS/OPERATION, INVALID CARD, INVALID CARD: DIRECTORY / NO CARD / TYPE, INVALID FILE: NO ROOM, NO CARD FOUND.
Hardware message on your 8593A? Analyzer Repair Inc. repairs and calibrates the HP 8593A in-house in Cocoa, Florida, even though HP support ended long ago. Tell us the message you see; estimates are free once the unit is in our lab. Contact us for service.
Message list based on the HP 8590B/8592B Installation, Verification and Operation Manual, Appendix A.