R&S SM300 - Backplane

R&S SM300 Instrument Assembly for Board and Module Exchange
Version 04 49
Service Manual SM300: 1147.1652.00 Instrument Part No SM300: 1147.1498.03
1.3.3.14 Backplane
Removing backplane
1. Remove both protectors (see section 1.3.3.1).
2. Remove handle (see section
1.3.3.2).
3. Remove rear frame and both cases (see section
1.3.3.3).
4. Remove carrier lid (see section
1.3.3.5).
5. Remove duoblind (see section
1.3.3.8).
6. Remove control PC module (see section
1.3.3.12).
7. Remove power supply (see section
1.3.3.13).
8. Disconnect cables for spinwheel, keyboard, display and fan from
backplane (see
Figure 1-36).
9. Undo 10 screws (see
Figure 1-37).
10. Push backplane diagonally toward bottom (see
Figure 1-38) and
position it horizontally in carrier unit (see
Figure 1-39).
11. Lift it diagonally and remove by lifting toward the top of the instrument
(see
Figure 1-40).
Caution
When inserting the backplane, make sure that it does not damage on the
press-in nuts in the carrier unit.
12. Disconnect both clamps from backplane.
Figure 1-36
Figure 1-37
Figure 1-38
Figure 1-39