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Sunday, July 22, 2012

Nokia 2680s Keypad Tracks and Filter IC Jumper WaysNokia 2680s Keypad Tracks and Filter IC Jumper WaysNokia 2680s Keypad Tracks and Filter IC Jumper Ways



Here's the Nokia 2680s full keypad jumper solution, that may useful to fix and repair not working keypad on 2680 slide. The solution below shows the complete pattern of each certain keys for easy troubleshooting. This also includes the keypad filter IC solder bumps connection paths for those who are looking for this solution.

This may only works for numeric1, 2, 3, 4, 5, 6, 7, 8 ,9 ,*, 0 and # keys, the upper keypad which are connected to the flex ribbon cable is not included in this solution. However, if the upper keys doesn't respond or working , you may only need to replace the flex ribbon cable. 


Nokia 2680s Keypad Tracks and Filter IC Jumper Ways
nokia 2680s full keypad jumper solution
You may trace each corresponding line paths if there is only one or two keypad keys don't work, you may also ensure that the PCB board is cleaned.
There is one filter IC mounted near the pin connector, you may then try to replace this chip if mostly all the keys isn't working or responding.
For *, 0 and # keys, you may check and replace the filter coils where those keys are being connected. Hope this help solve and repair Nokia 2680 slide keypad problems.


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