Troubleshooting
Supply
+3.3 V ER*
+5 ER
+15 V Isolated
-15 V Isolated
+9 V Isolated
-9 V Isolated
+3.3 V Isolated
+5 V Isolated
* This supply is active whenever AC power is applied to the instrument.
Self-Test Errors 605 - 609
Self-test errors 605-609 indicate that the processor board is unable to correctly program or communicate with the
waveform FPGA (U1005) on the main board. In this case, further troubleshooting is required. The problem could be due
to out of date firmware, or a failing or unseated processor board or main board. Before troubleshooting these errors,
ensure that the instrument firmware is up to date. If the errors are still being reported, continue with the following pro-
cedure.
412 Agilent 33500 Series Operating and Service Guide
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