Covidien Force FX, Service Manual

Page: 196 / 246

Left Front Heat Sink and Component Replacement
7-16
Force FX Electrosurgical Generator C Service Manual
If you plan to replace the entire left front heat sink assembly, go to
Install the Left Front Heat Sink
on page 7-16
.
Replace Left Front Heat Sink Components
Replacing left front heat sink components
• To replace one or more HVPS (high voltage power supply) output diodes, remove the
screw and shoulder washer that secure the diode to the heat sink. Position the new
diode on the heat sink and reinstall the shoulder washer and screw.
• To replace the HVPS secondary damping resistor, remove the screw that secures it to
the heat sink. Position the new resistor on the heat sink and reinstall the screw.
Install the Left Front Heat Sink
1.
Inspect the assembly for bent pins. On the left side of the chassis, carefully slide the
heat sink down into the matching connectors on the Power Supply/RF board.
2.
Install the two screws that secure the left front heat sink to the rail under the Power
Supply/RF board.
3.
Position the support bracket over the heat sinks and install the three screws that
secure the bracket to the left rear heat sink (plastic screw) and to the left front and
right heat sinks (two metal screws).
4.
Install the Control board.
a.
Position the Control board over the Power Supply/RF board with the Control
board components facing the rear panel. Fit the edges of the board into the slots
on the heat sinks. Slide the board down, carefully fitting the edge connector into
the matching connector on the Power Supply/RF board.
b.
Connect the Display board ribbon cable to the Control board and lock the
connector.
5.
Position the cover above the chassis and slide it down. Install the five screws that
secure the cover to the chassis.
HVPS Output Diodes
HVPS Secondary Damping Resistor