Agilent Technologies 35670-90066 manual Agilent 35670A, Troubleshooting the Analyzer, Adjustment

Agilent 35670A	Troubleshooting the Analyzer
	To troubleshoot performance test failures

Failing Performance Test	Probable Faulty Assembly		Adjustment	Troubleshooting Test
	(in order of probabilty)
Amplitude linearity	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 linearity	A2	Input	Input dc offset, page 5-10
channel 1 and 3 or
channel 2 and 4
Amplitude linearity	A5	Analog	Input dc offset, page 5-10
all channels			ADC gain, offset, and
			reference, page 5-7
Amp_phase match	A1/A2 Input			Source and calibrator,
	A5	Digital		page 4-45
	A6	Digital
A-weight filter	A1/A2 Input
Anti-alias filter	A1/A2 Input		Filter flatness, page 5-17
Frequency accuracy	A7	CPU	Frequency reference, page 5-5
Input coupling	A1/A2 Input
Single ch phase accuracy	A10 Rear Panel			Trigger, page 4-62
	A5 Analog
	A6	Digital
External trigger	A10 Rear Panel			Trigger, page 4-62
	A5 Analog
Input resistance	A1/A2 Input
Input capacitance	A1/A2 Input
Harmonic distortion	A1/A2 Input			Input and ADC, page 4-51
one channel	A5	Analog		Four channel, page 4-54
Harmonic distortion	A2	Input
channel 1 and 3 or
channel 2 and 4
Harmonic distortion	A5	Analog	ADC gain, offset, and
all channels			reference, page 5-7
Intermodulation distortion	A1/A2 Input			Input and ADC, page 4-51
one channel	A5	Analog		Four channel, page 4-54
Intermodulation distortion	A2	Input
channel 1 and 3 or
channel 2 and 4
Intermodulation distortion	A5	Analog	ADC gain, offset, and
all channels			reference, page 5-7

4-43