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Remove and Replace
WFM90D and WFM91D Service Manual
6-17
Remove. To remove the Top board shield:
1. Remove the top cover. Refer to Top Cover on page 6--5.
2. Remove the two retaining screws from the top of the Top board.
3. Slide the Top board shield out from under the Top board.
Replace. To replace the Top board shield:
1. If you are replacing the Top board shield, bend the tab on the shield as
shown in Figure 6--7.
2. Slide the shield under the Top board and align the cutouts in the shield with
the mounting posts of t he Top board.
NOTE. Be sure to properly align the tab of the Top board shield so that the tab is
under the Top board and that the Top board retaining screw goes through the
tab. Failure to do this will result in noisy display graphics. See Figure 6--7.
3. Install the two retaining screws into the top of the Top board.
4. Install the top cover. Refer to Top Cover on page 6--5.
Top Board Shield