Covidien Force FX, Service Manual

Page: 206 / 246

Power Supply/RF Board Replacement
7-26
Force FX Electrosurgical Generator C Service Manual
Power Supply/RF Board Replacement
Equipment required
• Phillips screwdriver
Remove the Power Supply/RF Board Assembly
1.
Turn off the generator. Disconnect the power cord from the wall receptacle.
2.
Remove the five screws that secure the cover to the chassis. Lift the cover off the
chassis. Set the cover and screws aside for reinstallation.
3.
Disconnect and remove the front panel assembly.
a.
Unlock the connector on the Control board and disconnect the Display board
ribbon cable from the Control board.
b.
Disconnect the power switch cable from the Power Supply/RF board.
c.
Disconnect the two REM connectors from the Power Supply/RF board.
d.
Remove the four screws that secure the front panel to the chassis. Save the screws
for reinstallation.
e.
Slide the front panel assembly forward, carefully disengaging it from the electrical
contacts on the Power Supply/RF board.
4.
Disconnect the Footswitch Board ribbon cable from the Power Supply/RF board.
5.
Disconnect the power entry module from the Power Supply/RF board.
6.
Remove the four screws that secure the rail to the chassis. Also remove the screw in
the center of the Power Supply/RF board (behind the Control board). Save the screws
for reinstallation.
7.
Remove the assembly (Power Supply/RF board, heat sinks, Control board, low voltage
power supply, fan) from the chassis.
Warning
Electric Shock Hazard
To allow stored energy to dissipate after power is disconnected, wait at
least five minutes before replacing parts.
Precaution
The generator contains electrostatic-sensitive components. When repairing the generator, work at
a static-control workstation. Wear a grounding strap when handling electrostatic-sensitive
components, except when working on an energized generator. Handle circuit boards by their
nonconductive edges. Use an antistatic container for transport of electrostatic-sensitive
components and circuit boards.
Notice
Calibrate the generator after you install a new Power Supply/RF board. Component differences
may affect output waveforms. Refer to
Calibrating the Generator
on page 5-26
.