Wednesday, August 27, 2008

Philips Matchline TV Remote Control - Dirty Contacts On The Key Matrix

This is the closeup of the key switch side of the PCB. The key switch are printed onto the PCB using some kind of conductive paint ( the black half crescent shapes ). Not the single IC chip that controls the whole remote, plus some smaller components like resistors, capacitors.
Note the heavy accumulation of dirt.
( Click on the picture to open in a new window for a larger view )

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