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Model 4085M
4-),
I N TRODUCTION
This section provides complete information on the failure diagnostics program
4-2.
included in the 4085 M software. Included are instructions on how and when to run the
program , descriptions of the tests performed by the program, and discussions on what to
do if the program detects a system failure. Also covered in this section is general
maintenance information for the operator, specifically instructions on how to remove pin
boards and on how to clean contact surfaces and m easurement pins.
4-3.
DIAG N OSTICS PROGRAM
Th · e diagnostics program
4-4.
DIAG is fully interactive and can be executed by the operator at any time to verify
correct operation of the 4085M, to isolate the cause of any failures that may occur, or to -
exercise and clean the relays on the pin boards.
4-5.
To ensure the integrity of m easurement results, you should include DIAG in the
40S5M's daily start-up routine. DIAG should also be executed after repairs and following
the installation of additional pin boards.
4-6.
PREPAR ATIO N S FOR DIAGNOSTICS
4-7.
There are several hardware and software requirements that you must satisfy before
you can run the diagnostics program. First, make sure that at least five pin boards are
installed in the 4085A
interconnected as shown in Figure 2-5. Pay special attention to the interconnections of
the 4085A's m easurem ent ports and the 4145A's SM Us. SMU I must be connected to PORT
I, SMU 2 to PORT 2, and so on. Having satisfied these hardware-related requirements,
you must load the BASIC 2.0 Language System into the computer, and then load and run
the Start subprogram as described in paragraph 3-36.
4-S.
Required equipment consists of the l 6 075A Relay Test Adapter for the Relay Test,
and the l6066A Test Fixture Adapter for the DC Leakage Test. The l 6075A and 1 6 066A
are furnished accessories.
SECTIO N IV
D IAGN OSTI CS
a n d
IS
stored on the furnIshed software disc (file name DIAG).
and that the 40S4A, 4085A, 4l45A, and computer are
_
M AINTE NAN CE
Section IV
.
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4-1
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