58 Chapter 4
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.
###: Most suspicious assembly
##: Suspicious assembly
#: Possible faulty assembly
Table 4-14 Adjustment failure troubleshooting information
Adj
Num.
First failed adjustment Probable faulty board assembly
A1 A2 A3 PPMC
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 # ###
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