The oscilloscope should display an undistorted waveform
approximately 3.2 V rms (9 Vp-p). Try adjusting A11R55.
There should be some range of adjustment above and
below this level.
Go To
A11.9000
Go To
RF.2690
ILT.2105
Replace W8 (front or rear panel FM input to A11J1) and
go to the Troubleshooting Foldout, block 1 (located just
prior to the \Special Cases" tab).
ILT.2110
Does the adjustment (modulator oset and gain) fail
above 2 GHz?
Go To
ILT.2115 Continue
1a-28 Instrument Level Troubleshooting Agilent 8360