Adjustment Failure Troubleshooting - Agilent Technologies E4980A Service Manual

Troubleshooting
Performance test failure troubleshooting

Adjustment failure troubleshooting

Table 4-14 represents the relationships between the failed adjustment and probably faulty
assembly. Note that this table lists some typical cases. There are possibilities that another
assembly may be faulty.
Table 4-14 Adjustment failure troubleshooting information
Adj First failed adjustment
Num.
1 Null DC offset adjustment
2 Null ADC offset adjustment
3 ADC Linearity adjustment
4 DC Bias adjustment
5 DC Level V Monitor adjustment
6 DC Level I Monitor adjustment
7 DC Source adjustment
8 DCR adjustment
9 Impedance adjustment
10 AC level Monitor adjustment
11 OSC Level adjustment
###: Most suspicious assembly
##: Suspicious assembly
#: Possible faulty assembly
58
Probable faulty board assembly
A1 A2 A3
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Chapter 4
PPMC