HP 75000 C Series Service Manual page 27

4-5. Test Procedures
I t is assumed that the person performing the verification tests
understands how to operate the mainframe, HP E l 4 2 6 4 and specified
test equipment. Equipment settings, other than those for the HP E1426A,
are stated in general terms. For example, a test might require that a
voltage of
+5
Vdc be measured, however the Digital Multimeter
instructions a s to mode and range would not be specified and the
operator would be expected
to
set that control and other controls as
required to obtain a measurement. It is also assumed that the
technician will select the cables, adapters, and probes required to
complete the test setups illustrated in this section.
4-6.
Functional
Verification
4-7. Self-Test
Procedure
The procedures in this section are used to quickly verify that the
HP E1426A functions are working. These tests should be performed
anytime the user wants to verify that the HP E1426A is connected
properly and is responding
to
basic commands. All tests can be
performed without accessing the interior of the instrument.
The purpose of this test is to verify the HP E1426A is communicating
with the command module, external controller, andfor external
terminal by performing a self-test.
Note
If necessary, refer to the HP El405 Command Module User's Manual
(or applicable command module manual) for information on address
selection and external cabling guidelines.
Refer as required to the HP E1426A User's Manual for information on
SCPI and COMPatible commands.
1.
Verify the HP E1426A and Command Module are installed in the
mainframe.
2. On the mainframe, connect a power cable and set the power
to
ON.
Verify the mainframdcommand module performs a proper power-
up sequence.
If correct, proceed with step 3.
If incorrect, troubleshoot mainframe/command module before
proceeding.
3. Perform clear status, reset, then preset the HP E1426A
4. Execute the test all routine using the
TEST: TALL
command.
5. Allow approximately
15
seconds for the test to complete, then read the
test event register to verify that no errors were generated during the
test.
If +O is returned, then no failure was encountered.
If any number other than 0 is returned, then a failure was
detected. See Chapter 8 for troubleshooting information.
4-2 Verlflcatlon Tests