Tektronix WFM8200, Service Manual

Page: 65 / 85

Removal and Replacement Procedures
Module Removal
The removal of most of the modules is a straightforward process, and can be
determined by a quick study of the exploded diagrams in the
Replaceable Parts
List . The following table shows what to remove to access each module. (See
Table 4-9 on page 4-25.)
Table 4-9: Module removal
To remove
You must fi rst remove Composite SDI/EYE/PHY
Audio
assy
Power
supply Main
Bezel/
front
panel
board
Front
panel/
LCD
assy
Top cover X X X X X X X
Board supports X X X X X
Composite X
SDI/EYE/PHY X
Analog audio X X
Audio main X X
Main board
Power supply
X
Fan assembly X
Front panel/LCD assembly X X
Bezel/front panel board X
Top Cover The top cover is a slip-lock design.
1. Remove the six T-10 screws at the top cover front corners.
2. Remove the four T-10 screws securing the top cover to the rear panel.
3. Slide the top cover back approximately ½ inch and then lift it from the chassis.
Board Supports The board supports span the width of the instrument chassis, holding the tops
of the module circuit boards in place.
1. Remove the two T-10 screws securing each board support, and then lift them
from the chassis.
2. When reinstalling the board supports, make sure that the module circuit
boards line up with the slots in the board supports.
WFM8200 and WFM8300 Waveform Monitors Service Manual 4–25