Chapter 2 43
Troubleshooting
Performance Test failure Troubleshooting
2. Troubleshooting
9 LF output level
accuracy& flatness
test (Opt 3L5)
√ √ √
10 LF output level
linearity test (Opt
3L5)
√ √ √
11 DC bias accuracy
test (Opt 3L5)
√
12 Crosstalk & noise
level test (Opt 3L5)
√ √
13 Input impedance test
(Opt 3L5)
14 Absolute amplitude
accuracy test (Opt
3L5)
√ √ √
15 Magnitude
ratio/phase dynamic
accuracy test (Opt
3L5)
√ √
16 Magnitude
ratio/phase
frequency response
test (Opt 3L5)
√ √ √
17 Trace noise test (Opt
3L5)
18 DC measurement
accuracy test (Opt
3L5)
√
Table 2-6 Recommended adjustment for performance test failure (Option 3L5)
Test Num.
First failed test Recommended adjustment
Oven reference
Frequency reference
Local gain
Mixer local leakage
Receiver absolute gain Rch
Synthesizer gain
Source output power
DC bias
Receiver IF range
Receiver port characteristics
Receiver absolute gain Tch
Receiver absolute gain LF
Source output power (LF)
DC level monitor