Tableof Contents
WFM90D and WFM91D ServiceManual v
Figure 6--15: Battery contact installation alignment 6--32.............
Figure 6--16: Battery power-wireand turnlock stud receptacle
installation 6--33............................................
Figure 6--17: Battery orientation marker position 6--36...............
Figure 6--18: Installing the EMI suppressor 6--37....................
Figure 6--19: Testingthe battery charging circuit 6--40................
Figure 6--20: Flowchart for no display 6--45........................
Figure 6--21: Flowchart for distorted waveformd isplay 6--46..........
Figure 6--22: Flowchart for no vector display 6--47...................
Figure 6--23: Flowchart for problems processingserial digital
input signals 6--48...........................................
Figure 6--24: Flowchart for bad audio display 6--49..................
Figure 6--25: Flowchart for no picture display 6--50..................
Figure 6--26: Flowchart for bad graticules and menus 6--51...........
Figure 6--27: Flowchart for all white display 6--52...................
Figure 6--28: Flowchart for untriggered waveformdisplay 6--53........
Figure 6--29: Flowchart for unlocked vector display 6--54.............
Figure 6--30: Flowchart for vector display jitter 6--55.................
Figure 6--31: Flowchart for distorted vectors 6--55...................
Figure 6--32: Flowchart for problems with the instrument
controls 6--56...............................................
Figure 6--33: Flowchart for bad menus in the picture display 6--57.....
Figure 6--34: Flowchart for dim or blotchy display 6--58..............
Figure 6--35: Flowchart for bad displays except Picture mode 6--58.....
Figure 6--36: Circuit board connector and pin locations 6--59..........
Figure 8--1: Exploded view (serial numbers B020100 and above) 8--4..
Figure 8--2: Exploded view (serial numbers below B020100) 8--7......
Figure 9--1: Interconnect diagram forin strumentswith
serial numbers B020100 and above 9--1........................
Figure 9--2: Interconnect diagram forin strumentswith
serial numbers below B020100 9--2............................