Nokia 2220s slide Keypad Light Problem Solution

Here's the Nokia 2220 slide Keypad Light Not Working problem. This solution below show the complete connection line paths or tracks of the Nokia 2220s Keypad Light Circuit, that may useful to easily fix the device.

You may refer to the solution below and locate each corresponding components that holds for the Nokia 2220s keypad backlight circuit. You may do have a check and test procedure on the highlighted components connection line spots.

Nokia 2220s Keypad Light Jumper Ways

Here's the some hints to fix the keypad light problem on Nokia 2220s:
1. Check the LED using a multimeter. replace if found damaged. 
2. Check all the connected Resistors. replace if found damaged.
3. Check the positive and negative LED's supply voltage line paths, apply jumper if open or cut-off.
4. Check the LED Driver IC filter coil and check also the VBAT supply voltage.
5. Rework or replace the LED Driver IC.
6. Check and replace the switching transistors.
7. If there is no one in the above procedure fix the problem. Try to rework or replace the UEM IC. end..
 The above procedures where just another options to fix Nokia 2220s Keypad light problem, others may have another ways to easily locate the problem.

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