Valleylab Force FX-8C, Service Manual

Page: 162 / 218

Fan Replacement
7-8 Force FX-8C Service Manual
Fan Replacement
1.
Remove the Power Supply/RF board and attached heat sinks (observe
all warnings and cautions). Refer to Power Supply/RF Board Replacement
later in this section.
2.
Disconnect the fan connector from the Power Supply/RF board.
3.
Turn the Power Supply/RF board over, and remove the four screws
and nuts that secure the fan to the board.
4.
Position the new fan on top of the Power Supply/RF board and install
the four nuts and screws that secure it to the board.
5.
Connect the fan connector to J4 on the Power Supply/RF board.
6.
Reinstall the Power Supply/RF board and attached heat sinks. Refer to
Power Supply/RF Board Replacement later in this section.
Footswitch Board Replacement
1.
Remove the Power Supply/RF board and attached heat sinks (observe
all warnings and cautions). Refer to Power Supply/RF Board Replacement
later in this section.
2.
Remove the footswitch board assembly.
a.
On the rear panel, remove the six screws that secure the footswitch
receptacles to the rear panel.
b.
Inside the rear panel, remove the three screws that secure the
footswitch board assembly to the rear panel standoffs.
3.
Install the new footswitch board assembly.
a.
Position the assembly inside the rear panel and install the three
screws that secure the assembly to the rear panel.
b.
On the rear panel, install the six screws that secure the footswitch
receptacles to the rear panel.
4.
Reinstall the Power Supply/RF board and attached heat sinks. Refer to
Power Supply/RF Board Replacement later in this section.