Thermo Finnigan LTQ - Diagnostics and PCB and Assembly Replacement

_______________________ Finnigan LTQ Hardware Manual ______________________ 6-1
5IFSNP
&-&$530/$03103"5*0/
Chapter 6
Diagnostics and PCB and Assembly
Replacement
Many of the MS detector components can be tested by the LTQ diagnostics.
Thermo Electron’s service philosophy for the LTQ system calls for
troubleshooting to the lowest part, assembly, PCB, or module listed in the
Replaceable Parts chapter. You should replace LTQ components when
indicated by the LTQ diagnostics, by Thermo Electron Technical Support, or
by a Thermo Electron Customer Support Engineer.
This chapter covers the following topics:
• Running the LTQ diagnostics
• Replacing a fuse in the MS detector
• Replacing a power supply in the MS detector
• Replacing a PCB or assembly in the MS detector