Tektronix DSA8200 Series, Service Manual

Page: 69 / 196

Removal and Installation Procedures
DSA8200 Digital Serial Analyzer and Modules Service Manual
4--11
1. Collect equipment and locate modules to be removed: Use an angled-tip
tweezers (Item 9) and locate the the front panel see Figure 4--3 on page 4--13.
2. Orient the instrument: Set the instrument so its bottom is down on the work
surface and its front is facing you.
3.
Remove the knob(s): Grasp any knob you want to remove and pull it straight
out from the front panel about a
1
/
4
inch to create some clearance between
the base of the knob and the front panel. Insert the tweezers between the
knob and front panel and use them to remove the knob. See Figure 4--2.
4.
Reinstallation: To reinstall, align knob to shaft and push it in until it snaps.
CAUTION.
To prevent damage to the encoders located onto the circuit board,
apply pressure to the backs of the encoders while pushing the knob on the shaft.
Figure 4--2: Knob removal
Front-Panel Knobs