Removal and Installation Procedures
6-50
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
1. Locate module to be removed: Locate the Fan assembly in the locator
diagram Internal Modules, Figure 6--8, page 6--21. Additional modules to be
Removed:
H Trim (all)
H Bottom cover
H Left and Right covers
H ATX assembly
2. Orient the instrument: Set the instrument so its bottom is down on the work
surface and its left side is facing you.
3. Remove the fan: See Figure 6--33, page 6--51.
a. Disconnect the fan from the processor board: Disconnect the two fan
power cables J291 and J390 located on the processor board. Remove the
fan power cables from under the cable clamp.
b. Remove the two T-15 Torxdrive screws securing the fan assembly to the
top main chassis.
c. Lift the fan assembly up and out from the chassis.
4. Reinstallation: Do in reverse steps a through c to reinstall the fan assembly.
CAUTION. Take care when handling the fan assembly, the fan blades are brittle
and can be easily damaged.
Fan Assembly Removal
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