Agilent Technologies 35670A Service Manual page 219

Failing Performance Test
Amplitude linearity
one channel
Amplitude linearity
channel 1 and 3 or
channel 2 and 4
Amplitude linearity
all channels
Amp_phase match
A-weight filter
Anti-alias filter
Frequency accuracy
Input coupling
Single ch phase accuracy
External trigger
Input resistance
Input capacitance
Harmonic distortion
one channel
Harmonic distortion
channel 1 and 3 or
channel 2 and 4
Harmonic distortion
all channels
Intermodulation distortion
one channel
Intermodulation distortion
channel 1 and 3 or
channel 2 and 4
Intermodulation distortion
all channels
Agilent 35670A
Probable Faulty Assembly
(in order of probabilty)
A1/A2 Input
A5 Analog
A2 Input
A5 Analog
A1/A2 Input
A5 Digital
A6 Digital
A1/A2 Input
A1/A2 Input
A7 CPU
A1/A2 Input
A10 Rear Panel
A5 Analog
A6 Digital
A10 Rear Panel
A5 Analog
A1/A2 Input
A1/A2 Input
A1/A2 Input
A5 Analog
A2 Input
A5 Analog
A1/A2 Input
A5 Analog
A2 Input
A5 Analog
Adjustment
Input dc offset, page 5-10
ADC gain, offset, and
reference, page 5-7
Input dc offset, page 5-10
Input dc offset, page 5-10
ADC gain, offset, and
reference, page 5-7
Filter flatness, page 5-17
Frequency reference, page 5-5
ADC gain, offset, and
reference, page 5-7
ADC gain, offset, and
reference, page 5-7
Troubleshooting the Analyzer
To troubleshoot performance test failures
Troubleshooting Test
Input and ADC, page 4-51
Four channel, page 4-54
Source and calibrator,
page 4-45
Trigger, page 4-62
Trigger, page 4-62
Input and ADC, page 4-51
Four channel, page 4-54
Input and ADC, page 4-51
Four channel, page 4-54
4-43