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Restoring 1220, 1225 and 1230 keypad: Difference between revisions
Restoring 1220, 1225 and 1230 keypad (view source)
Revision as of 16:49, 9 December 2020
, 9 December 2020→Fix
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[[Image:Bounce(4).jpg|thumb|left|250px|(Pic3) Keypad switches]] | [[Image:Bounce(4).jpg|thumb|left|250px|(Pic3) Keypad switches]] | ||
[[Image:Bounce(5).jpg|thumb|right|250px|(Pic4) Keypad switches]] | [[Image:Bounce(5).jpg|thumb|right|250px|(Pic4) Keypad switches]] | ||
* '''WARNING!''' When taking the analyzer apart, users are at | * '''WARNING!''' When taking the analyzer apart, users are at their own risk! The inside contains lethal voltages and precaution must be taken. | ||
*The switches that the keypad uses are still being manufactured today. They are C&K D6L90F1LFS and the D6L90F2LFS, they are the exact same. The difference being the force required to push the buttons. One takes 1.3 Newtons and the other 2 Newtons (Pic3). The | *The switches that the keypad uses are still being manufactured today. They are C&K D6L90F1LFS and the D6L90F2LFS, they are the exact same. The difference being the force required to push the buttons. One takes 1.3 Newtons and the other 2 Newtons (Pic3). The keypad has 26 of them. Replacing them with new ones will fix the excessive bouncing. When de-soldering the switches one has to be careful of burning the PCB and lifting pads because the traces are very small. | ||
:→ [[Media:D6L90F1LFS.pdf|Datasheet for D6L90F1LFS and D6L90F2LFS ]] | :→ [[Media:D6L90F1LFS.pdf|Datasheet for D6L90F1LFS and D6L90F2LFS ]] | ||
<div style="clear: both"></div> | <div style="clear: both"></div> | ||
==Conclusion== | ==Conclusion== | ||
[[Image:Bounce(3).jpg|thumb|left|250px|(Pic5) Restored keypad.]] | [[Image:Bounce(3).jpg|thumb|left|250px|(Pic5) Restored keypad.]] | ||