Tektronix AWG7 1B Series, Service Manual

Page: 67 / 174

Removal and Installation Procedures
Front-Trim Unit You need a screwdriver with a T-15 Torx tip, and angle-tip tweezers (items 1, 2,
and 10).
Removal.
To remove the front-trim unit, follow these steps: (See Figure 4-4
on page 4-11.)
1. Remove the handle unit, snaps, and cosmetic covers.
2. Orient the instrument so that the rear is on the work surface.
3. Tape the power switch button down so that it will not come off the front trim.
4. Remove the knob by pulling it straight out from the front panel with the
angle-tip tweezers.
5. Remove the three screws at the bottom of the front trim.
6. Grasp the bottom side of the front trim, and pull off the bottom side of it by
loosening the DVD drive part.
7. The upper part of the chassis has three projections. The front trim fi ts in
these projections. When removing the front trim, grasp its back edge and fl ex
it upward before pulling it forward.
Installation.
To install, reverse this procedure.
EMI Covers You need a screwdriver with a T-15 Torx tip (items 1 and 2).
Removal.
To remove the EMI covers, follow these steps: (See Figure 4-5 on
page 4-14.)
1. Remove the handle unit, snaps, cosmetic covers, and front-trim unit.
2. Remove the top cover:
a. Orient the instrument so that the bottom is on the work surface.
b. Remove the 14 screws securing the top EMI cover to the chassis.
c. Lift the cover off the chassis.
3. Remove the bottom cover:
a. Orient the instrument so that the top is on the work surface.
b. Remove the 12 screws securing the bottom EMI cover to the chassis.
c. Lift the cover off the chassis.
Installation.
To install, reverse this procedure.
AWG7000B and AWG7000C Series Service Manual 4–13