Replacing A Fuse; Replacing Pcbs And Power Supplies - Thermo Scientific TSQ Series Hardware Manual

Replacing a Fuse

Fuses protect the various circuits by opening the circuits whenever overcurrent occurs. On the
TSQ mass spectrometer, a failed fuse indicates a failed board or electronic module that must be
replaced by a Thermo Fisher Scientific field service engineer.
CAUTION Due to the complexity of accessing the TSQ mass spectrometer electronic
assemblies, only a Thermo Fisher Scientific field service engineer can replace fuses.

Replacing PCBs and Power Supplies

The electronic assemblies that control the operation of the mass spectrometer are distributed
among various PCBs and other modules located in the tower, in the embedded computer, and on
or around the vacuum manifold of the mass spectrometer.
CAUTION The TSQ mass spectrometer electronic assemblies are close-packed to minimize the
size of the system. Due to the complexity of removing and reinstalling the TSQ mass
spectrometer electronic assemblies, only a Thermo Fisher Scientific field service engineer can
replace electronic assemblies.
Thermo Scientific
7
Diagnostics and PCB and Assembly Replacement
TSQ Series Hardware Manual
Replacing a Fuse
93