REMOVAL AND

A18 OR

REPLACEMENT PROCEDURES

A19 PCB

6-9REMOVING AND

This paragraph provides instructions for removing and replacing the

REPLACING THE A18 OR A18 Power Supply PCB or the A19 AC Line Conditioner PCB, both of

A19 PCB

which are located in the power supply 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.

 

 

 

 

 

 

 

 

WARNING

 

 

 

 

 

When power is removed from the instrument, always allow

 

five minutes for the capacitors on the A21 Line Filter/Recti-

 

fier PCB to discharge before removing either the A18 or A19

 

PCB.

 

 

 

 

Procedure

Remove and replace the A18 or A19 PCB as follows:

 

 

Step 1 Remove the power supply cover and set it

 

 

aside.

Step 2

If the A19 PCB is being removed, (1) dis-

 

connect the cable assembly from the A21

 

Line Filter/Rectifier PCB at A19P2 and

 

(2) remove the Nylatch fastener used to

 

secure the PCB to the housing assembly.

Step 3

Lift up the edge tabs on the PCB and lift

 

it out of the power supply housing.

Step 4

To replace the PCB, reverse the removal

 

process.

6-12

682XXB/683XXB MM

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Anritsu 682XXB, 683XXB manual 9REMOVING, A19 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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