Service manual

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3 – 8
Disassembly
LCD module
GENERAL DISASSEMBLY:
REMOVING THE LCD MODULE
The LCD module can be removed with only a little more disassembly after you’ve removed the keyboard and
heat plate:
1.Using a flat-head screwdriver, pry the status panel (A) forward slightly.
2.Lift the status panel up and set it aside.
3.Remove the hinge covers (B & C). Use the flat-head screwdriver to flex the cover up and back
slightly.
4.Disconnect the LCD controller cable from connector JLCD1 (D from E) and the inverter
cable from connector JINV1 (F from G).
5.Remove the four (4) hinge screws (H ~ K), set them aside and lift the LCD module away
from the body.
Note: The LCD’s ground connector (L).
If you are upgrading the LCD module to different size, stop here. The entire module should be replaced, includ-
ing the rear panel and frame. The new module uses different components, but connects in the same way as the
original. Refer to Appendix A for specific part numbers.
If you are replacing the LCD panel with one of the same size, continue to page 3-10.
MODEL 3420 NOTE:
The status panel is integrated
into the top cover. However,
removing hinge cover B
opens a space large enough
to pull through the LCD con-
troller and inverter cables.