Tektronix CSA7404B - Page 234

Removal and Installation Procedures
6-14
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
1. Locate module to be removed: Locate the Trim in the locator diagram. See
Figure 6--7, page 6--20.
2. Remove the carrying handle and the right/left side trim panels: Use
Figure 6--3, page 6--15 as a guide.
a. Remove the T-15 Torx screws that secure the handle to the instrument.
Remove the handle from the instrument. During reassembly, tighten the
screws to 8 to 10 inch pounds of torque.
b. Slide the side trim panels towards the rear of the instrument allowing the
tabs to clear the cover openings, then pull out to remove the panels from
the instrument.
3. Remove the front panel trim: Use Figure 6--3, page 6--15, as a guide.
a. To prevent the power button from falling out of the front panel trim,
place a piece of tape over the button.
b. Grasp the trim ring by its top edge and pull toward you to detach the
three plastic snaps. (Alternatively, you can use a flat-bladed screwdriver
or other small prying tool to help you detach the snaps.)
c. Swing the bottom of the ring upward and off the front panel.
4. Remove the acquisition trim: Use Figure 6--3, page 6--15 as a guide.
a. Remove the three T-15 Torx screws that secure the acquisition trim to
the instrument.
b. Remove the acquisition trim from the instrument.
5. Remove the top cover trim: Use Figure 6--3, page 6--15 as a guide.
a. Remove the accessory pouch; it snaps off.
b. Remove the four T-15 Torx screws that secure the top cover trim to the
instrument. The T-15 Torx screws also secure the snap studs to the top
cover.
c. Remove the top cover trim from the instrument.
6. Reinstallation: Do in reverse steps 2 through 5 to reinstall the appropriate
trim.
Trim and Carrying Handle