REMOVAL AND

A13, A14,

REPLACEMENT PROCEDURES

OR A15 PCB

6-7REMOVING AND REPLACING THE A13, A14, OR A15 PCB

This paragraph provides instructions for removing and replacing the A13 YIG Driver PCB, the A14 SDM, SQM Driver PCB, or the A15 Regulator PCB, all of which are located in the main card cage (see Fig- ure 6-3). Each of these PCB assemblies consists of a PCB and a PCB Heat Sink subassembly.

Preliminary Disconnect the power cord from the unit and remove the top cover as described in paragraph 6-2.

Procedure Remove and replace the A13, A14, or A15 PCB as follows:

Step 1 Remove the main card cage cover and set aside.

Step 2 Lift up on the edge tabs of the PCB and lift it out of the card cage.

Step 3 Using a Phillips screwdriver, remove the two screws that fasten the PCB Heat Sink subassembly to the chassis pan.

Step 4 Lift the PCB Heat Sink subassembly out of the card cage.

Step 5 To replace the PCB, reverse the removal process.

6-8REMOVING AND

This paragraph provides instructions for removing and replacing the

REPLACING THE A16 OR A16 CPU Interface PCB or the A17 CPU PCB, both of which are lo-

A17 PCB

cated in the CPU housing assembly (see Figure 6-3).

 

Preliminary

Disconnect the power cord from the unit and remove

 

 

the top cover as described in paragraph 6-2.

 

Procedure

Remove and replace the A16 or A17 PCB as follows:

 

 

Step 1

Remove the CPU cover and set aside.

 

 

Step 2

Lift up on the edge tabs of the PCB and

 

 

 

lift it out of the CPU housing.

 

 

Step 3

To replace the PCB, reverse the removal

 

 

 

process.

682XXB/683XXB MM

6-11

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Anritsu 683XXB Replacement Procedures Or A15 PCB, 7REMOVING and Replacing the A13, A14, or A15 PCB, 8REMOVING, A17 PCB
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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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