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| FJ 3 I 1JZ1 | 1ST L O O U T 1 4 . 5 T O 1 8 . 5 dBm | |
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A S V I N C R E A S E S __I
A 7 O U T P U T I N C R E A S E S
R E F V O L T A G E
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S K 1 1 1 5
Figure
Note | The block | diagrams for the Al4 and Al5 assemblies are located in Chapter 10, |
| Synthesizer | Section. |
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Confirming a Faulty Third Converter
1.Perform the IF Input Amplitude Accuracy performance test in the HP 8560A Installation and Verification Manual if Option 002 is not present. This exercises most of the third converter.
2.If the performance test fails or Option 002 is present, perform the External Mixer Amplitude adjustment in Chapter 2 of this manual.
3.If adjustment cannot be made, disconnect W35 from A15J801.
4.On the HP 8560A press (PRESET) and set the controls to the following settings:
C E N T E R F R E Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...300MHz SPAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 Hz
5.Connect a signal generator to A15J801.
6.Set the signal generator to the following settings:
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..310.7MHz CW Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .