8 Installation Note E4400-90214
Installation Procedure
Remove the signal generator covers
1. Turn the signal generator’s power switch off and disconnect the line cord.
2. Refer to Figure 1 on page 8. Remove the four bottom feet (item 3).
3. Remove the two strap handles (item 1) from each side of the signal generator by loosening the two
screws (item 2) on each handle.
4. Remove the four rear feet (item 4) from the signal generator by removing the four screws (item 5)
that secure them.
5. Slide the signal generator top cover (item 6) off the back of the signal generator.
6. Refer to Figure 2 on page 9. Remove the 11 screws (item 1) that secure the top chassis cover (item 2)
and remove it.
7. If Options UN3/4 or UN8/9 are installed, proceed to “Install the Option UND Board Assembly
(Options UN3/4 or UN8/9 Installed)” on page 17.
Figure 1 Top Cover Removal
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