Chapter 5

 

Troubleshooting

5-1INTRODUCTION

This chapter provides information for troubleshooting signal generator

 

malfunctions. The troubleshooting procedures presented in this chap-

 

ter support fault isolation to a replaceable subassembly or RF compo-

 

nent. (Remove and replace procedures for the subassemblies and RF

 

components are found in Chapter 6.)

5-2

5-3

RECOMMENDED TEST

The recommended test equipment for the troubleshooting procedures

EQUIPMENT

presented in this chapter is listed in Chapter 1, Table 1-2 (page 1-12).

ERROR AND

During normal operation, the 682XXB/683XXB generates error mes-

WARNING/STATUS

sages to indicate internal malfunctions, abnormal instrument opera-

MESSAGES

tions, or invalid signal inputs or data entries. It also displays warning

 

messages to alert the operator to conditions that could result in inac-

 

curate signal generator output. In addition, status messages are dis-

 

played to remind the operator of current menu selections or settings.

 

Self-Test

The 682XXB/683XXB firmware includes internal di-

 

Error

agnostics that self-test the instrument. These self-

 

Messages

test diagnostics perform a brief go/no-go test of most

 

 

of the instrument PCBs and other internal assem-

 

 

blies.

You can perform an instrument self-test at any time during normal operation by pressing SYSTEM and then the System Menu soft-key Selftest.

If the signal generator fails self-test, an error mes- sage(s) is displayed on the front panel data display. These error messages describe the malfunction and, in most cases, provide an indication of what has failed. Table 5-1 is a summary listing of the self-test error messages. Included for each is a reference to the troubleshooting table that provides a description of the probable cause(s) and a procedure for identify- ing the failed component or assembly.

682XXB/683XXB MM

5-3

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Anritsu 683XXB, 682XXB manual Error, Messages
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682XXB, 683XXB specifications

The Anritsu 683XXB and 682XXB series are advanced vector network analyzers (VNAs) renowned for their precision and versatility in characterizing RF and microwave components. Designed for engineers and technicians involved in the development, manufacturing, and testing of high-frequency devices, these analyzers offer state-of-the-art technology that ensures optimal performance in various applications.

One of the hallmark features of the Anritsu 683XXB and 682XXB is their high dynamic range, which allows for accurate measurements of small reflection and transmission coefficients, essential for assessing the performance of complex RF structures. With frequency coverage extending from DC to 70 GHz, these analyzers cater to a broad spectrum of applications, making them suitable for industries such as telecommunications, aerospace, and automotive.

The user-friendly interface of the Anritsu VNAs is complemented by a high-resolution display, which facilitates easy navigation through measurement setups and results. The analyzers feature multiple measurement modes, including S-parameter measurements, time-domain analysis, and noise figure measurements, providing engineers with comprehensive tools for device characterization.

Both the 683XXB and 682XXB implement advanced calibration techniques, including automated calibration and error correction methods, to enhance measurement accuracy. These methods significantly reduce the uncertainties associated with test setups, enabling reliable performance evaluations of components like filters, amplifiers, and antennas.

Anritsu’s proprietary technologies, such as the VectorStar and ShockLine series integration, further empower the 683XXB and 682XXB models. These technologies enable high-throughput testing and improved measurement stability, addressing the needs of modern production environments that demand rapid turnaround times without sacrificing precision.

Additionally, the analyzers come equipped with various connectivity options, including USB, LAN, and GPIB, ensuring seamless integration into automated test systems. This adaptability enhances the analyzers' utility in both laboratory settings and field operations.

In conclusion, the Anritsu 683XXB and 682XXB series vector network analyzers represent the pinnacle of RF and microwave testing technology. With their unmatched precision, comprehensive measurement capabilities, and advanced calibration techniques, these instruments are indispensable tools for professionals striving to push the boundaries of high-frequency device performance and reliability.
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