Covidien Force FX, Service Manual

Page: 200 / 246

Right Heat Sink and Component Replacement
7-20
Force FX Electrosurgical Generator C Service Manual
If you plan to replace one or more components on the existing heat sink, go to
Replace
Right Heat Sink Components
on page 7-20
.
or
If you plan to replace the entire right heat sink assembly, go to
Install the Right Heat Sink
on page 7-21
.
Replace Right Heat Sink Components
Components of the right heat sink
• To replace the damping resistor FET, remove the screw and shoulder washer that
secure it to the heat sink. Position the new damping resistor FET on the heat sink and
reinstall the washer and screw.
• To replace the RF power diode, remove the screw and shoulder washer that secure
the diode to the heat sink. Position the new RF power diode on the heat sink and
reinstall the washer and screw.
• To replace the tank damping resistor, remove the two screws that secure the top and
bottom of the resistor to the heat sink. Position the new tank damping resistor on the
heat sink and reinstall the screws.
• To replace the power MOSFET (under the small circuit board), remove the four screws
that secure the small circuit board to the heat sink. Set the board and screws aside for
reinstallation.
Power MOSFET
Circuit board
Tank Damping
Resistor
RF Power Diode
Damping Resistor FET