2. Service
Assembly/Module Diagnostic Trees (Diagnostic Section 3)
89
3.1.3.1.4 Mass-Spectrometer Monitor Test ( Current On)
1 Place a 10 k resistor between pins 3 and 37 on connector XA2P2.
2 Use SCPI command syst:print?
(Terminal-to-instrument via RS-232C data communication required.)
QUESTION: Is Mass spec: between -9.5 and -11V?
If Yes: Remove power, replace A2, and retest.
If No: Remove power, replace A7, and retest.
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