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Bu teardown bir tamir kılavuzu değildir. Keyboard cihazınızı onarmak için, servis kılavuzumuzu kullanın.

  1. Teardown  Glued Seenda wireless keyboard WGJP-038, Teardown  Glued Seenda wireless keyboard WGJP-038: adım 1, 1 resimden 1.
    • The keyboard had no external screws. It was assembled with tabs and glue around the edge and in the middle. (see glue lines in image, arrowed red). When breaking open glued casings, eye protection should be considered.

    • To open, use a blunt butter knife or similar and ease the top and bottom casings apart at the seam line. Try different places to find the weakest point. Once a small gap is opened, slide in a flat head screw driver at the edge of the gap and twist, to break more glue. Work around the edge until all the glue is broken. (Some clips may break).

    • (There were so many clips that a few broken ones didn't matter, such that the casings clipped back together easily.)

    • The top and bottom casing will still not come fully apart because there are more glue lines to break with the screw driver. The casings could be bent apart enough to insert a flat bladed screw driver to break more glue lines. Once done and the ribbon cable extracted (pull down the locking bar first), the top and bottom casings come apart.

    • The image shows the open casing with the plastic cover over the circuit board removed (about 8 small screws Philips 00). With the removal of another 3 small screws the circuit board can be lifted out for inspection.

    • Check circuit board for any dry solder joints (re-flow solder with soldering iron if necessary). Maybe also clean switch with switch lubricant. Unfortunately this didn't fix my fault.

    • My final repair attempt, was to heat up the circuit board in a fan oven to heal any invisible microcracks in the solder. I started at 5 mins at 120C and went up in 10C steps, testing after each step. After 160C, the keyboard was working much better, but after 170C it was dead!

    • Hopefully your repair will be more successful.

Dave Empson

Üyelik tarihi: 01/30/17

2.254 İtibar

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