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原帖由: Garrett Cassidy ,

标题:

Tiny buttons with bad contact

文本:

The number buttons on my calculator watch Casio CA-53W were getting unreliable (many presses to get it to acknowledge), so I took it apart.

I’m unfamiliar with the how the buttons work (make contact) and how the button pad connects to the circuit board. I tried cleaning the contacts (lightly sanding with 400grit) but seamed to make it worse. The key pad just presses against a little strip the is stuck to the circuit board.

[image|2149478]

[image|2149477]

[image|2149476]

Dose anyone know what type of contact is going on here so I can attempt to fix it. I don’t even know what its called or how it works.

设备:

Watch

状态:

open