Agilent Technologies 89410A Service Manual page 35

f
Connect a digital voltmeter to the primary power cable as shown
below.
g
Connect the power cord to the rear panel.
h
Calculate the differential voltage for the local line voltage using
the following table.
Line Selector Switch
115 V
230 V
For example, if the local line voltage is 110 Vrms, then the calculated
differential voltage is 311 ±30 Vdc.
i If the measured voltage is not within ±30 Vdc of the calculated
differential voltage, the A96 Primary Power Supply assembly is
probably faulty.
j
Disconnect the power cord from the rear panel.
k Wait five minutes to allow time for the power supply capacitors to
discharge.
l Disconnect the probes from the primary power cable and
reconnect the cable to A95 P350.
Troubleshooting the Analyzer
To troubleshoot the power supply
Differential Voltage ±30 Vdc
Line Voltage (Vrms) x2.83
Line Voltage (Vrms) x1.414
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