Thermo Scientific TSQ 9000 Hardware Manual page 313

Thermo Scientific
7. Use a T10 Torxhead screwdriver to remove the two screws and 5.5 mm nut driver to
remove the standoff located on the outer rim of the anode feedthrough, but leave the
center pin of the standoff intact. The standoff serves as the ground for the electrometer
board. The center pin is the signal path for the electrons generated in the electron
multiplier going into the electrometer.
8. Remove and replace the anode feedthrough, o-ring, standoff and screws.
9. Insert one screw and tighten it until it is snug. Then insert and tighten the other screw.
Once both screws fit snugly, retighten them.
Note Be sure to attach the standoff at the location shown in
10. Reattach the electrometer board and the four screws that hold it in place.
11. Reattach the electrometer shield and the four screws.
12. Reconnect the electrometer board cable and large feedthrough cables.
13. Restart your system by following the instructions in
3
Advanced Troubleshooting
Replacing Components of the Electron Multiplier
Figure 103.
"Restarting the System" on
TSQ 9000 Hardware Manual
page 145.
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