3 Replies Latest reply on Dec 3, 2017 12:25 PM by nitzane

    help - troubleshooting an old scope

    nitzane

      Hi guys, newbie here, not sure if this is the right place, id appreciate directions to the right forum.

       

      I recently bought a used hp 54645A off ebay.

       

      It boots ok with no error messages, shows both traces and properly shows the square test signal.

       

      Theres one issue with it - the display seems to freeze  when i try to toggle vectors.

       

      After a hard reset the splash screen shows "PANIC - DSP COMMUNICATIONS TIMED OUT".

       

      Also - sometimes the display would boot up jumbled. I reckon the jumbled display is related to the freezes.

       

      no joy with the hp/agilent documentation, but i did get a hold ofo the schematics for the scope, here.

       

      Iv'e included some photos, hopefully they would make up for my non native/professional english.

       

      Has anyone seen this before? any usual suspects?

       

       

      Thanks,

      Nitzan