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During the repair
Energy was adjusted until beam was found
o
This was done for all energies
Since running at maximum deflection current
o
=> ~36 MeV for all electron beams
Instead of finding the defect (short-circuited) transistor and restoring the
correct deflection current in the bending magnet
To do this adjustment
o
energy selection had to be switched to “manual mode”
By doing so, the energy selection from the control panel was partly disabled
19
2016-10-05
T Knöös