Remove and Replace
WFM90D and WFM91D ServiceManual 6-17
Remove. Toremove the Top board shield:
1. Remove the top cover.Refer to Top Cover on page 6--5.
2. Remove the two retaining screwsfrom the top of the Top board.
3. Slide the Topboard shield out from under the Top board.
Replace. Toreplace the Top board shield:
1. If you arereplacing the Top board shield, bend the tab on the shield as
shown in Figure 6--7.
2. Slide the shield underthe Top board and align the cutouts in the shield with
the mounting posts of the Topboard.
NOTE. Be sureto properly align the tab of the Top board shield so that the tab is
under the Topboard and that the Top board retainingscrew goes through the
tab. Failure to do this will result in noisy display graphics. See Figure6 --7.
3. Install the two retainingscrews into the top of the Top board.
4. Install the top cover.Refer to Top Cover on page 6--5.
TopBoard Shield