Agilent Technologies 4294A Instruction Manual download pdf (Page 328)

320 Chapter 9

Setting/Using Control and Management Functions

Performing Self-Diagnosis of the Agilent 4294A

The Agilent 4294A has a built-in self-test function to confirm whether it is operating

normally. This self-diagnosis consists of three test groups: “internal tests,” “external tests,”

and “display tests.” This section describes how to automatically execute the “internal tests”

in a batch process that does not need special tools and is easy to perform. For more

information on each internal test and the “external tests” and “display tests,” refer to the

Service Manual (English).

NOTE When executing the self-diagnosis, “Svc” appears in the instrument status area in the

left-most area of the screen to indicate that the Agilent 4294A is in service mode status. If

you measure a DUT in this service mode status, you cannot obtain a correct measurement

result that meets the specifications. After completion of the self-diagnosis, be sure to press

the

[Preset] key or cycle power and then check that the “Svc” display is no longer

displayed before performing any measurement.

Performing the Internal Tests in a Batch Process

Follow these steps to automatically perform all of the internal tests in a batch process.

Step 1. Press the

[System] key to display the System menu.

Step 2. Press the DIAGNOSTIC TEST key to display the Self-Diagnosis menu. At this time, in the

set parameter value field in the upper left area of the screen, the currently selected test item

is displayed together with “DIAGNOSTIC TEST.”

Step 3. Press the

INTERNAL TEST key to select test number 0, “All internal tests.” In the set

parameter value field in the upper left area of the screen, “DIAGNOSTIC TEST 0 ALL

INTERNAL” is displayed.

Step 4. Press the

RUN TEST key to automatically start executing all of the internal tests.

NOTE While the self-diagnosis is being executed, at the top of the set parameter value field the

current test item that is being executed (if an error occurs as the test result, its description)

is displayed in a smaller size.

Execution of all of the internal tests takes approximately one and a half minutes.

Step 5. When all the internal tests are completed, the test result “PASS” or “FAIL” is displayed at

the right of “DIAGNOSTIC TEST 0 ALL INTERNAL” in the set parameter value field in

the upper left area of the screen.

If the test fails, the Agilent 4294A may be at fault. Contact your local Agilent Technologies

sales office or the company you purchased the instrument from.

Checking the Result of Each Test

You can check the result of each executed test after the batch execution of the internal tests.

Step 1. Press the

[System] key to display the System menu.

Step 2. Press the

DIAGNOSTIC TEST key to display the Self-Diagnosis menu. At this time, the

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