Dell E2722H Service Manual page 5

.
Remove the
mainframe
Unscrew the 4
screws by the
Philips-head
Screwdriver and
insert the scraper
into the button site
to open the rear
cover
Remove all the
aluminum foil and
the cable
connectors and
Unscrew the two
screws on the two
sites of mainframe
remove the mylar on
the powerboard