Chapter 2 67
Overall Troubleshooting
Troubleshooting Performance Test Failures
Absolute
Amplitude Accuracy
Second LO Power
SLODA/FELOMA
50 MHz Calibrator
Amplitude
A14/A15
Input Attenuators
A20 Lowband
A10 3rd Converter
A8 Analog IF
A7 Digital IF
A19 RYTHM
A30 FIFA (44 - 50 GHz)
A18 YTO
A29 SBTX/FELOMA
Driver (44 - 50 GHz)
Chapter 3
Absolute
Amplitude Accuracy
(Wide IF)
But not failing the
normal Absolute
Amplitude Accuracy
test
A10 3rd Converter
A31 Wideband Analog IF
Chapter 8
Noise Sidebands None A12 Synthesizer
A11 Reference
A9 Second LO
A18 YTO
Chapter 3
Chapter 4
Chapter 5
Frequency Response
(check description of
test to determine
instrument settings
such as Preamp ON,
Preselector On or
OFF)
SLODA/FELOMA
YTF Align
Attenuator Slope
Frequency Response
A20 Lowband
A19 RYTHM
A22 Preamp
A27 Electronic Attenuator
A14/A15 Input Attens
A10 3rd Converter
A13 Front End Driver
RF Section
Chapter 3
Chapter 4
Resolution Bandwidth
Switching
Uncertainty
None A8 Analog IF
A7 Digital IF
Chapter 6
LO Output Accuracy
(Opt. AYZ)
LO Output A21 SLODA
A21 FELOMA
A13 Front End Driver
Chapter 3
Chapter 4
IF Input Accuracy
(Opt. AYZ)
IF Input A10 3rd Converter Chapter 6
Preselector Tune Out
(Opt. AYZ)
Preselector Tune Out A13 Front End Driver Chapter 6
Table 2-4 Performance Test Failures
Failing
Performance Test
Adjustment Probable
Faulty Assembly
Troubleshooting
Information