Ion Optics Test Failure

We are trying to resuscitate a G1956A MSD.  Recently replaced power supply which got the heaters working but MSD still not ready.  On running diagnostics, got an MS Ion Optics Test Failure: 

Ramping Test       Error:  Not enough signal at m/z 1218 for ramping test.

(see page 8 of attached).

Not sure what next steps are.  Can anyone suggest how to troubleshoot this?


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