Programming instructions

60 Verification Tests
WARNING Hazardous voltages may exist on the wiring and connectors of
the Agilent 3499A/B/C plug-in modules. Only service trained
personnel should make repairs to the Agilent 3499A/B/C
mainframes and/or the plug-in modules.
WARNING Make sure to disconnect all the wiring from the Agilent
3499A/B/C plug-in modules to the external devices in order to
execute the Verification Tests. This presents two potential
safety hazardous:
a: It is possible for the user to come in contact with high voltage
(if high voltage exists in the test system).
b: Equipment damage may occur if the wrong lines become
accidentally connected or disconnected.
Caution Use anti-static handling techniques during the Verification
Tests.
Mainframes Self-Test
The Agilent 3499A/B/C mainframe’s self-test verifies the operation of the
front panel circuitry, and a part of the micro-processor related circuitry
(ROM, etc.) on the Controller board. In addition, GPIB & RS-232 circuitry
on the Controller board can also be verified with self-test.
The self-test does not, however, assess the operability of the backplane or
the drivers contained in the mainframe. The operability of the backplane or
the drivers will not be tested until the individual plug-in modules tests are
performed.
It is important to remember that if the self-test passes, it does not, in itself,
ensure proper instrument operation. A self-test failure, however, does
indicate an instrument malfunction.
Self-Test To perform a self-test: Press Menu, turn the knob to “SELFTEST”, then
press Enter. The self-test should start by turning on all display segments.
Following the display test, the internal tests are performed. If all internal
tests pass, “PASSED” will be displayed. Otherwise, the reason of the failure
will be displayed (see the Table below).
Table 4-1.
Error Number Description
+1 ROM test failed.
+2 GPIB test failed.