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HP 54501A Problem... Need Help!

Question asked by dahoneycutt65 on Sep 27, 2014
Latest reply on Sep 29, 2014 by algoss
My HP 54501A scope has developed the vertical jitters.  The trace (on all four channels) almost continuously, moves up and down on the screen.  I have verified that the power supply is stable and voltages are spot-on.  In addition to this problem, the scope now randomly shuts off (including the fan) and then immediately restarts.
Any ideas and suggestions will be appreciated.