Tektronix RSA3408B, Service Manual

Page: 172 / 250

Removal and Installation Procedures
5- 44
RSA3408B Analyzer Service Manual
1. Assemble equipment and locate module to be removed:
a. You will need a #2 Phillips screwdriver (Items 1 and 3).
b. Locate the A50 motherboard in locator diagram Motherboard and
daughterboards , Figure 5--6 on page 5--16.
c. Remove the RF modules (refer to the
RF Modules
procedure on
page 5--27).
d.
Remove the daughter boards (refer to the procedure A10 A/D Board
through A70 DC Power Board starting on page 5--41).
e.
Remove the rear panel (refer to the procedure Rear Panel on page 5--65).
2. Remove the A50 motherboard:
a.
Orient the analyzer: Set the analyzer so its top is down on the work
surface and its front is facing you.
b. Unplug the cables at J902, J900, J901, J912, J910, J911, J100, and J920
on the bottom of the analyzer. See Figure 5--38 on page 5--76 for cable
interconnection.
c.
Orient the analyzer:
Set the analyzer so its bottom is down on the work
surface and its rear is facing you.
d. Remove 25 screws securing the A50 board to the main chassis.
e. Pull the board backward until you can unplug the cables at J700, J810,
J60, and J710 on the A50 board. See Figure 5--37 on page 5--75 for cable
interconnection.
f. Lift up and remove the board.
3.
Reinstallation:
a. Reverse step 2 to reinstall the A50 board.
b. Reinstall the rear panel (refer to the procedure Rear Panel on
page 5--65).
c.
Reinstall the daughter boards (refer to A10 A/D Board through A70 DC
Power Board starting on page 5--41) .
d. Reinstall the RF modules (refer to RF Modules on page 5--27) .
A50 Motherboard