Apple
iMac – Apple iMac 21.5 display replacement procedure – How to remove the front
glass - how to remove the display.
Apple iMac 21.5: Display replacement procedure
How
to remove the Glass Panel
Before
beginning, unplug your iMac and lay it on a soft surface as shown. Stick a
suction cup near each of the two top corners of the glass panel. To attach the
suction cups we sell, first position the suction cup with the movable handle
parallel to the face of the glass panel. While lightly holding the suction cup
against the glass, raise the movable handle until it is parallel with the other
handle. If your suction cups refuse to stick, try cleaning both the glass panel
and the suction cup with a mild solvent.
Gently
lift the glass panel perpendicular to the face of the LCD enough to clear the
steel mounting pins attached along the underside of the top edge of the glass
panel. Pull the glass panel away from the lower edge of the iMac and carefully
set it aside. During reinstallation, be sure to meticulously clean the inside
of the glass panel and the face of the LCD as any dust or fingerprints trapped
inside will be annoyingly visible when the machine is turned on.
How
to remove the Display
Remove
the eight 8 mm T10 Torx screws securing the display to the outer case.
The last two pictures are detail shots of each side of the display
The last two pictures are detail shots of each side of the display
Slightly
lift the top edge of the display out of the outer case. Do not lift it too
much. There are several cables attaching the display to the logic board.
Pull
the vertical sync cable connector out of its socket on the LED driver board
near the top left corner of your iMac.
Rotate
the display out of the outer case enough to disconnect the LED backlight power
cable from the LED driver board. Disconnect the LED backlight power cable by
depressing the locking mechanism while pulling the connector away from its
socket (toward the bottom edge of the iMac).
Grab
the plastic pull tab secured to the display data cable lock and rotate it
towards upwards. Pull the display data cable straight out of its socket on the
logic board. Do not lift up on the display data cable, as its socket is very
fragile. Pull the cable parallel to the face of the logic board.
Disconnect
the LCD thermal sensor cable connector from its socket on the logic board. If
your fan is spinning full speed after completion, check this connection or the
hard drive's thermal sensor cable.
Carefully
pull the display toward the top edge of your iMac and lift it out of the outer
case, minding any cables that may get caught.
