Agilent Technologies 8648A Operation And Service Manual page 195

Table 5-3. Adjustments and Performance Tests Required after Repair or
Replacement of an 8648B/C/D Assembly
Assembly
A1 Front Panel
A2 Power Supply
A3 Motherboard Assembly
A3A1 memory Board
A3BT1 Battery
A4 Reference
A5 Sig Gen Synth
A6 Output
A9 Filtered Line Module
A10 Frequency Extension
A11 Attenuator
A12 Reverse Power Protection
A13 Pulse Modulator Module (1E6)
Adjustments
None
All
All
None
a
DC FM
a
Time Base DAC
a
DC FM
a
AM Level
a
AM Level: FE
Predistortion and Detector Offset
a
Prelevel
a
Output Level
a
HF Power Level Accuracy
a
LF Output Level
a
HF Power Level Accuracy
None
a
AM Level
a
AM Level: FE
Predistortion and Detector Offset
a
Prelevel
a
Output Level: FE
a
HF Power Level Accuracy
a
LF Output Level
a
LF Power Level Accuracy
a
HF Power Level Accuracy
a
LF Power Level Accuracy
a
HF Power Level Accuracy
a
LF Power Level Accuracy
a
HF Power Level Accuracy
a
LF Power Level Accuracy
Performance Tests
RF Level Accuracy
Power Level Accuracy
All
All
Power-on Self Test
DC FM Frequency Error
Residual FM
Internal Timebase: Aging Rate
FM Accuracy
FM Distortion
Phase Modulation Distortion
Residual FM
Harmonics
Spurious
DC FM Frequency Error
AM Accuracy
AM Distortion
Harmonics
a
Spurious
RF Level Accuracy
Power Level Accuracy
Power-on Self Test
AM Accuracy
AM Distortion
Harmonics
a
Spurious
RF Level Accuracy
Power Level Accuracy
RF Level Accuracy
Power Level Accuracy
RF Level Accuracy
Power Level Accuracy
RF Level Accuracy
Power Level Accuracy
Pulse Modulation On/Off Ratio
Pulse Modulation Rise Time
Service
Post-Repair
a
b
a
a
a
a
a
5-7