Agilent Ion Trap G2445D SL model

Hello, I have an old Agilent Ion Trap G2445D SL model which has worked super until recent.   The turbos spin up just fine, but the high vacuum gauge does not turn on.  I had the mini Ion gauge repaired because of course it is almost impossible to purchase parts that I can rely on.  I can only assume that the gauge is functioning correctly after the repair.  Does anyone still have this instrument or a mini Ion gauge that they know works? When I click on what can be the diagnostic suggestions, it is suggested that the problem could be either the min- ion gauge or the vacuum Interface GEVI.   Any suggestions would be helpful.

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