Agilent Technologies 35670-90066 manual To troubleshoot performance test failures

Troubleshooting the Analyzer	Agilent 35670A
To troubleshoot performance test failures

To troubleshoot performance test failures

With the exception of the Quick Confidence test, all functional self tests must pass before the following table is valid.

Step 1. If the analyzer failed a performance test, compare the failing performance test

G	to the following table.
	If more than one performance test is failing, use the entry that is closest to the
	beginning of the table. The table lists the probable faulty assembly or assemblies and
	any recommended adjustment or troubleshooting procedure to do before replacing the
	assembly. If both an adjustment and a test are recommended, do the adjustment first.
	Failing Performance Test Troubleshooting Guide
Failing Performance Test		Probable Faulty Assembly	Adjustment	Troubleshooting Test
		(in order of probabilty)
DC offset		A1/A2 Input	Input dc offset, page 5-10
one channel or			ADC gain, offset, and
channel 1 and 3 or			reference, page 5-7
channel 2 and 4
DC offset		A5 Analog	Input dc offset, page 5-10
all channels			ADC gain, offset, and
			reference, page 5-7
Amplitude accuracy		A1/A2 Input	Input dc offset, page 5-10	Input and ADC, page 4-51
one channel		A5 Analog	ADC gain, offset, and	Four channel, page 4-54
			reference, page 5-7
Amplitude accuracy		A2 Input	Input dc offset, page 5-10
channel 1 and 3 or
channel 2 and 4
Amplitude accuracy		A5 Analog	Input dc offset, page 5-10
all channels			ADC gain, offset, and
			reference, page 5-7
Flatness		A1/A2 Input	Input dc offset, page 5-10	Input and ADC, page 4-51
one channel		A5 Analog	ADC gain, offset, and	Four channel, page 4-54
			reference, page 5-7
Flatness		A2 Input	Input dc offset, page 5-10
channel 1 and 3 or
channel 2 and 4
Flatness		A5 Analog	Input dc offset, page 5-10
all channels			ADC gain, offset, and
			reference, page 5-7

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