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Tuesday, February 26, 2013

5630 keypad Keys and button switches failure solution- keypad Ic jumper ways

Here's the solution and guide to repair Nokia 5630 Xpressmusic keypad keys malfunction. This solution completely shows the line tracks of each corresponding keypad keys for easy tracing and repair method.
On Nokia 5630 keypad circuit, there are two ESD-EMI filter chips has been used and connected to the keypad keys group of particular connections. Each  inner and outer core layer of keypad matrix is being group in one particular connection.


5630 Keypad IC and Keypad connection Jumper Solution
nokia 5630 keypad Ic jumper ays tracks

Grouped Key line configuration and connection to the pin connector:

Keypad Outer Core layer:

Line 1 connected to pin number 10 -  Volume up, 1, 2, 3, Right soft key
Line 2 connected to pin number 8   - Volume down, 4, 5, 6, Left soft key
Line 3 connected to pin number 7   - 7, 8, 9, clear key
Line 4 connected to pin number 13 - Navigation select, *, 0, #, Application key
Line 5 connected to pin number 14 - Navigation up, Send, Camera, Navigation down
Line 6 connected to pin number 20 - Navigation right, Music key1, Music key2, Music key3, Navigation left

Keypad Inner Core layer:
Line 1 connected to pin number 15 -     Volume up, Volume down, Navigation select, Navigation up,
                                                            Navigation down
Line 2 connected to pin number 9 -       1, 4, 7, *, Send, Music key1
Line 3 connected to pin number 1 -       2, 5, 8, 0, Camera, Music key2
Line 4 connected to pin number 3 -       3, 6, 9, #, Music key3
Line 5 connected to pin number 12 -     Right soft key, Left soft key, Clear, Application, Navigation Down,
                                                            Navigation Left

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