Agilent Technologies 5977 MSD

98 5975/5977 Series MSD Operation Manual
4 General Maintenance
5 Trace the wires for the ion source heater and temperature sensor to the
feedthrough board. Disconnect them there.
6 Remove the thumbscrews that hold the ion source in place.
7 Pull the ion source out of the source radiator.
Table 18 Extractor EI (inert+) ion source wires
Wire color Connects to Number of leads
Blue Entrance lens 1
Orange Ion focus 1
White Filament 1 (top filament) 2
Red Repeller 1
Black Filament 2 (bottom filament) 2
Brown Extractor lens 1
Figure 12 Removing the Extractor ion source
Feedthrough board
Ion source
Thumbscrews
Source heater and
temperature sensor wires
Source radiator
Extractor wire