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Wednesday, February 27, 2013

Keypad connections on Nokia 7510 supernova

here's the solution for nokia 7510s keypad problems. This solution shows the complete connection of each keypad keys for easy tracing and troubleshooting keypad failure on the device.

Nokia 7510s keypad keys connections

And this solution shows as guide on handling the keypad filter IC.
Nokia 7510s keypad IC internal circuit line paths
mokia 7510s keypad Ic jumper ways

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