HP 15C LCD Replacement

[DavidRicchetti]

Step 2 — Open the calculator. I recommend starting with the donor calc to get a feel for the process before you risk the calc you’re trying to save. First remove the battery cover and batteries and gently remove the rubber pads covering the screws at all four corners. Try to get under both the piece of rubber and the two sided tape so they come off as one. I used a product called Goo-Gone to removed the residual glue from the calculator without damage. Then remove all four screws and lift the back of the calculator off with the keyboard facing down. Note that there are two small coil springs that you may want to remove so they don’t get lost; the larger one goes in the hole near the display. Note also that one or more of the small square foam washers, that fit on the four posts holding the display module, may be stuck to the back cover of the calculator; don’t loose them.