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Anritsu 373XXA manual System does not BOOT-UP Troubleshooting

Models: 373XXA

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SYSTEM DOES NOT BOOT-UP

TROUBLESHOOTING

At this point, the system software continues the boot-up process by performing the following activities:

￿Issues command to A15 PCB to change display from TEXT mode to GRAPHIC mode and display ANRITSU logo.

￿Performs basic communication tests between the digital system (A13, etc.) and the analog subsystem (A1-A8, A21A1, A21A2); this is part of a minimal self test.

￿Conducts an IF Calibration

￿Resets and loads the front panel state that was in effect prior to the last power down

￿Starts the measurement process

NOTE

The system software fully controls the 373XXA VNA sys- tem after boot-up (with operator intervention and guid- ance). The system software is only loaded once upon initial power up.

Troubleshooting To start the troubleshooting of boot-up related problems, perform the Boot-up Problems following preliminary checks:

1.Note any error messages displayed on the CRT display during the boot-up process.

2.Observe the front panel and the display during the boot-up pro- cess for information as to which part of the process failed or did not execute.

3.Verify that the system power supplies are working properly as per paragraph 5-4, above. Note particularly the operation of power supplies immediately after power-up.

4.Try to boot the instrument from the floppy disk and repeat steps 1 and 2 above.

Upon completion of the preliminary checks (above), perform the fol- lowing procedures, as appropriate.

Hard Disk Problem 1 If a hard disk problem is indicated during bootup from a floppy disk, but the system can bootup correctly from the hard disk:

Step 1. Boot up from the hard disk, then format the Hard Disk us- ing the procedure below.

CAUTION

Formatting the hard disk will erase all files on the hard disk. Before starting the disk formatting process, copy any files you wish to save to a floppy disk.

5-8

373XXA MM

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Page 62
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Anritsu 373XXA manual System does not BOOT-UP Troubleshooting
Page 61 Page 63

373XXA specifications

The Anritsu 373XXA series is a notable line of microwave and RF signal analyzers designed for comprehensive analysis and testing of various wireless communication technologies. These analyzers are specifically crafted to meet the demands of modern communication systems, making them ideal for engineers and technicians working in wireless research, development, and manufacturing.

One of the main features of the Anritsu 373XXA series is its wide frequency range, which typically spans from as low as 5 kHz to several GHz, accommodating a vast array of signal types and applications. This extensive frequency coverage allows users to test and validate all manner of systems, from LTE and 5G networks to satellite communications, yielding accurate and reliable measurement results.

The device employs advanced measurement technologies that provide in-depth analysis capabilities. Among these technologies is the ability to perform both time and frequency domain measurements, allowing users to visualize and diagnose signal integrity issues effectively. In addition, the 373XXA series incorporates vector signal analysis, which is crucial in evaluating complex modulated signals, commonly found in today’s sophisticated wireless communication protocols.

Another distinguishing characteristic of the Anritsu 373XXA is its user-friendly interface. It features a large, high-resolution display that enables easy navigation through the analyzer's functions and measurements. The intuitive design is further enhanced by customizable settings and measurement configurations that streamline the workflow, making it accessible for both novice and experienced users.

The 373XXA series also supports various digital and analog signal demodulation techniques, ensuring compatibility with an array of communication standards. Furthermore, users can benefit from its built-in signal generation capabilities, which allows for end-to-end testing of devices and systems under realistic operational conditions.

Portability is another key feature of the Anritsu 373XXA series. The compact design and lightweight structure facilitate easy transport, which is particularly advantageous for field applications where mobility is critical.

Overall, the Anritsu 373XXA series stands out as a versatile and powerful tool for professionals in the RF and microwave field, thanks to its extensive frequency range, advanced measurement technologies, user-friendly interface, and portability. Whether developing new wireless standards or troubleshooting existing systems, the 373XXA delivers precision and reliability essential for today’s dynamic communication landscape.