Chapter 6: Replacing Assemblies
To remove and replace a fan
6–32
To remove and replace a fan
WARNING AVOID INJURY!
The fan blades are exposed both inside and outside the chassis. Disconnect the power cable
before working around the fan. Use extreme caution in working with the oscilloscope. Failure to
observe these precautions may result in injury.
Use this procedure to remove and replace the fans. When necessary, refer to other removal
procedures.
1 Disconnect the power cable and remove the cover.
2 Disconnect the fan cable from the fan control board.
3 Remove the four T20 fan screws securing the fan to the chassis.
Figure 6-31
Removing Fan Fasteners
CAUTION AVOID OVERHEATING THE oscilloscope!
When replacing the fan, be sure the direction of the fan air flow is coming from the inside to the
outside of the oscilloscope. Check the flow arrows on the fan and check for proper flow once
power is applied to the oscilloscope. Improper air flow can overheat the oscilloscope.
4 To install the fan, reverse this procedure.
T20 Torx Screws
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