AnsweredAssumed Answered

Input overload on HP 54111D

Question asked by Zeus on Jun 3, 2009
Latest reply on Jun 11, 2009 by marowley
Hi all,

I have an old HP 54111D scope which spits out an error message once its done going through all the self test loops. There is a message in red letters on the screen saying Input Overload, and also power up self test failed.
All of the controls are frozen and no menus can be accessed. I looked inside and no visible physical problems are present. Checked all the cables between various modules and they seem to be fine. Did continuity check on some of them and they all worked.
If anyone has any bright ideas on where to go from here I would be very grateful.
Its a big piece of hardware, but I really like it and I want to try and bring it back to life
Thank you!

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